diff options
24 files changed, 10919 insertions, 17600 deletions
diff --git a/util/vgabios/helper_exec.c b/util/vgabios/helper_exec.c index ee03f4eca3..8d18798c40 100644 --- a/util/vgabios/helper_exec.c +++ b/util/vgabios/helper_exec.c @@ -50,8 +50,8 @@ int run_bios_int(int num) X86_CS = MEM_RW((num << 2) + 2); X86_IP = MEM_RW(num << 2); - //printf("%s: INT %x CS:IP = %x:%x\n", __FUNCTION__, - // num, MEM_RW((num << 2) + 2), MEM_RW(num << 2)); + printf("%s: INT %x CS:IP = %x:%x\n", __FUNCTION__, + num, MEM_RW((num << 2) + 2), MEM_RW(num << 2)); return 1; } @@ -128,7 +128,7 @@ u8 x_inb(u16 port) val = inb(port); - //printf("inb(0x%04x) = 0x%02x\n", port, val); + printf("inb(0x%04x) = 0x%02x\n", port, val); return val; } @@ -139,7 +139,7 @@ u16 x_inw(u16 port) val = inw(port); - //printf("inw(0x%04x) = 0x%04x\n", port, val); + printf("inw(0x%04x) = 0x%04x\n", port, val); return val; } @@ -149,25 +149,26 @@ u32 x_inl(u16 port) val = inl(port); - //printf("inl(0x%04x) = 0x%08x\n", port, val); + printf("inl(0x%04x) = 0x%08x\n", port, val); return val; } void x_outb(u16 port, u8 val) { - //printf("outb(0x%02x, 0x%04x)\n", val, port); + printf("outb(0x%02x, 0x%04x)\n", + val, port); outb(val, port); } void x_outw(u16 port, u16 val) { - //printf("outw(0x%04x, 0x%04x)\n", val, port); + printf("outw(0x%04x, 0x%04x)\n", val, port); outw(val, port); } void x_outl(u16 port, u32 val) { - //printf("outl(0x%08x, 0x%04x)\n", val, port); + printf("outl(0x%08x, 0x%04x)\n", val, port); outl(val, port); } diff --git a/util/vgabios/int10.c b/util/vgabios/int10.c index 702be4f399..bccb3d9954 100644 --- a/util/vgabios/int10.c +++ b/util/vgabios/int10.c @@ -18,7 +18,7 @@ extern int verbose; */ int int42_handler() { - +#if 0 if (verbose && X86_AH != 0x0e) { printf("int%x\n", current->num); x86emu_dump_xregs(); @@ -472,7 +472,7 @@ int int42_handler() /* Ignored */ break; } - +#endif return 1; } #endif diff --git a/util/vgabios/int15.c b/util/vgabios/int15.c index 59af923ad1..239b6beef5 100644 --- a/util/vgabios/int15.c +++ b/util/vgabios/int15.c @@ -6,7 +6,7 @@ void x86emu_dump_xregs(); int int15_handler(void) { printf("\nint15 encountered.\n"); - x86emu_dump_xregs(); + //x86emu_dump_xregs(); X86_EAX = 0; return 1; } diff --git a/util/vgabios/int1a.c b/util/vgabios/int1a.c index 48aa13e9a1..bd9a24c9f8 100644 --- a/util/vgabios/int1a.c +++ b/util/vgabios/int1a.c @@ -19,7 +19,7 @@ int int1A_handler() if (verbose) { printf("\nint1a encountered.\n"); - x86emu_dump_xregs(); + //x86emu_dump_xregs(); } switch (X86_AX) { diff --git a/util/vgabios/pci-userspace.c b/util/vgabios/pci-userspace.c index aea3f6983d..f09c167cec 100644 --- a/util/vgabios/pci-userspace.c +++ b/util/vgabios/pci-userspace.c @@ -44,7 +44,7 @@ PCITAG findPci(unsigned short bx) tag->slot = slot; tag->func = func; - if (pci_get_dev(pacc, bus, slot, func)) + if (pci_get_dev(pacc, 0, bus, slot, func)) return tag; return NULL; @@ -58,7 +58,7 @@ u32 pciSlotBX(PCITAG tag) u8 pciReadByte(PCITAG tag, u32 idx) { struct pci_dev *d; - if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func))) + if ((d = pci_get_dev(pacc, 0, tag->bus, tag->slot, tag->func))) return pci_read_byte(d, idx); #ifdef DEBUG_PCI printf("PCI: device not found while read byte (%x:%x.%x)\n", @@ -70,7 +70,7 @@ u8 pciReadByte(PCITAG tag, u32 idx) u16 pciReadWord(PCITAG tag, u32 idx) { struct pci_dev *d; - if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func))) + if ((d = pci_get_dev(pacc, 0, tag->bus, tag->slot, tag->func))) return pci_read_word(d, idx); #ifdef DEBUG_PCI printf("PCI: device not found while read word (%x:%x.%x)\n", @@ -82,7 +82,7 @@ u16 pciReadWord(PCITAG tag, u32 idx) u32 pciReadLong(PCITAG tag, u32 idx) { struct pci_dev *d; - if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func))) + if ((d = pci_get_dev(pacc, 0, tag->bus, tag->slot, tag->func))) return pci_read_long(d, idx); #ifdef DEBUG_PCI printf("PCI: device not found while read long (%x:%x.%x)\n", @@ -95,7 +95,7 @@ u32 pciReadLong(PCITAG tag, u32 idx) void pciWriteLong(PCITAG tag, u32 idx, u32 data) { struct pci_dev *d; - if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func))) + if ((d = pci_get_dev(pacc, 0, tag->bus, tag->slot, tag->func))) pci_write_long(d, idx, data); #ifdef DEBUG_PCI else @@ -107,7 +107,7 @@ void pciWriteLong(PCITAG tag, u32 idx, u32 data) void pciWriteWord(PCITAG tag, u32 idx, u16 data) { struct pci_dev *d; - if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func))) + if ((d = pci_get_dev(pacc, 0, tag->bus, tag->slot, tag->func))) pci_write_word(d, idx, data); #ifdef DEBUG_PCI else @@ -120,7 +120,7 @@ void pciWriteWord(PCITAG tag, u32 idx, u16 data) void pciWriteByte(PCITAG tag, u32 idx, u8 data) { struct pci_dev *d; - if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func))) + if ((d = pci_get_dev(pacc, 0, tag->bus, tag->slot, tag->func))) pci_write_long(d, idx, data); #ifdef DEBUG_PCI else diff --git a/util/vgabios/testbios.c b/util/vgabios/testbios.c index 541f460588..9ffdd068e5 100644 --- a/util/vgabios/testbios.c +++ b/util/vgabios/testbios.c @@ -76,7 +76,7 @@ void do_int(int num) if (!ret) { printf("\nint%x: not implemented\n", num); - x86emu_dump_xregs(); + //x86emu_dump_xregs(); } } @@ -317,10 +317,10 @@ int main(int argc, char **argv) if (trace) { printf("Switching to single step mode.\n"); - X86EMU_trace_on(); + //X86EMU_trace_on(); } if (debugflag) { - X86EMU_set_debug(debugflag); + //X86EMU_set_debug(debugflag); } X86EMU_exec(); /* Cleaning up */ diff --git a/util/vgabios/x86emu/include/x86emu.h b/util/vgabios/x86emu/include/x86emu.h index 24d958899f..6ddf39e24d 100755 --- a/util/vgabios/x86emu/include/x86emu.h +++ b/util/vgabios/x86emu/include/x86emu.h @@ -181,6 +181,8 @@ void X86EMU_halt_sys(void); #define DEBUG_TRACECALL_REGS_F 0x004000 #define DEBUG_DECODE_NOPRINT_F 0x008000 #define DEBUG_SAVE_IP_CS_F 0x010000 +#define DEBUG_EXIT 0x020000 +#define DEBUG_SAVE_CS_IP 0x040000 #define DEBUG_SYS_F (DEBUG_SVC_F|DEBUG_FS_F|DEBUG_PROC_F) void X86EMU_trace_regs(void); diff --git a/util/vgabios/x86emu/src/x86emu/debug.c b/util/vgabios/x86emu/src/x86emu/debug.c index af2b77a822..b69b86f8be 100644 --- a/util/vgabios/x86emu/src/x86emu/debug.c +++ b/util/vgabios/x86emu/src/x86emu/debug.c @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,444 +28,398 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: This file contains the code to handle debugging of the -* emulator. +* emulator. * ****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/debug.c,v 1.4 2000/04/17 16:29:45 eich Exp $ */ #include "x86emu/x86emui.h" -#ifdef IN_MODULE -#include "xf86_ansic.h" -#else #include <stdarg.h> -#include <stdlib.h> -#endif /*----------------------------- Implementation ----------------------------*/ #ifdef DEBUG -static void print_encoded_bytes(u16 s, u16 o); -static void print_decoded_instruction(void); -static int parse_line(char *s, int *ps, int *n); +static void print_encoded_bytes (u16 s, u16 o); +static void print_decoded_instruction (void); +static int parse_line (char *s, int *ps, int *n); /* should look something like debug's output. */ -void X86EMU_trace_regs(void) +void X86EMU_trace_regs (void) { - if (DEBUG_TRACE()) { - x86emu_dump_regs(); - } - if (DEBUG_DECODE() && !DEBUG_DECODE_NOPRINT()) { - printk("%04x:%04x ", M.x86.saved_cs, M.x86.saved_ip); - print_encoded_bytes(M.x86.saved_cs, M.x86.saved_ip); - print_decoded_instruction(); - } + if (DEBUG_TRACE()) { + x86emu_dump_regs(); + } + if (DEBUG_DECODE() && ! DEBUG_DECODE_NOPRINT()) { + printk("%04x:%04x ",M.x86.saved_cs, M.x86.saved_ip); + print_encoded_bytes( M.x86.saved_cs, M.x86.saved_ip); + print_decoded_instruction(); + } } -void X86EMU_trace_xregs(void) +void X86EMU_trace_xregs (void) { - if (DEBUG_TRACE()) { - x86emu_dump_xregs(); - } + if (DEBUG_TRACE()) { + x86emu_dump_xregs(); + } } -void x86emu_just_disassemble(void) +void x86emu_just_disassemble (void) { - /* - * This routine called if the flag DEBUG_DISASSEMBLE is set kind - * of a hack! - */ - printk("%04x:%04x ", M.x86.saved_cs, M.x86.saved_ip); - print_encoded_bytes(M.x86.saved_cs, M.x86.saved_ip); - print_decoded_instruction(); + /* + * This routine called if the flag DEBUG_DISASSEMBLE is set kind + * of a hack! + */ + printk("%04x:%04x ",M.x86.saved_cs, M.x86.saved_ip); + print_encoded_bytes( M.x86.saved_cs, M.x86.saved_ip); + print_decoded_instruction(); } -static void disassemble_forward(u16 seg, u16 off, int n) +static void disassemble_forward (u16 seg, u16 off, int n) { - X86EMU_sysEnv tregs; - int i; - u8 op1; - /* - * hack, hack, hack. What we do is use the exact machinery set up - * for execution, except that now there is an additional state - * flag associated with the "execution", and we are using a copy - * of the register struct. All the major opcodes, once fully - * decoded, have the following two steps: TRACE_REGS(r,m); - * SINGLE_STEP(r,m); which disappear if DEBUG is not defined to - * the preprocessor. The TRACE_REGS macro expands to: - * - * if (debug&DEBUG_DISASSEMBLE) - * {just_disassemble(); goto EndOfInstruction;} - * if (debug&DEBUG_TRACE) trace_regs(r,m); - * - * ...... and at the last line of the routine. - * - * EndOfInstruction: end_instr(); - * - * Up to the point where TRACE_REG is expanded, NO modifications - * are done to any register EXCEPT the IP register, for fetch and - * decoding purposes. - * - * This was done for an entirely different reason, but makes a - * nice way to get the system to help debug codes. - */ - tregs = M; - tregs.x86.R_IP = off; - tregs.x86.R_CS = seg; - - /* reset the decoding buffers */ - tregs.x86.enc_str_pos = 0; - tregs.x86.enc_pos = 0; - - /* turn on the "disassemble only, no execute" flag */ - tregs.x86.debug |= DEBUG_DISASSEMBLE_F; - - /* DUMP NEXT n instructions to screen in straight_line fashion */ - /* - * This looks like the regular instruction fetch stream, except - * that when this occurs, each fetched opcode, upon seeing the - * DEBUG_DISASSEMBLE flag set, exits immediately after decoding - * the instruction. XXX --- CHECK THAT MEM IS NOT AFFECTED!!! - * Note the use of a copy of the register structure... - */ - for (i = 0; i < n; i++) { - op1 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++)); - (x86emu_optab[op1]) (op1); - } - /* end major hack mode. */ + X86EMU_sysEnv tregs; + int i; + u8 op1; + /* + * hack, hack, hack. What we do is use the exact machinery set up + * for execution, except that now there is an additional state + * flag associated with the "execution", and we are using a copy + * of the register struct. All the major opcodes, once fully + * decoded, have the following two steps: TRACE_REGS(r,m); + * SINGLE_STEP(r,m); which disappear if DEBUG is not defined to + * the preprocessor. The TRACE_REGS macro expands to: + * + * if (debug&DEBUG_DISASSEMBLE) + * {just_disassemble(); goto EndOfInstruction;} + * if (debug&DEBUG_TRACE) trace_regs(r,m); + * + * ...... and at the last line of the routine. + * + * EndOfInstruction: end_instr(); + * + * Up to the point where TRACE_REG is expanded, NO modifications + * are done to any register EXCEPT the IP register, for fetch and + * decoding purposes. + * + * This was done for an entirely different reason, but makes a + * nice way to get the system to help debug codes. + */ + tregs = M; + tregs.x86.R_IP = off; + tregs.x86.R_CS = seg; + + /* reset the decoding buffers */ + tregs.x86.enc_str_pos = 0; + tregs.x86.enc_pos = 0; + + /* turn on the "disassemble only, no execute" flag */ + tregs.x86.debug |= DEBUG_DISASSEMBLE_F; + + /* DUMP NEXT n instructions to screen in straight_line fashion */ + /* + * This looks like the regular instruction fetch stream, except + * that when this occurs, each fetched opcode, upon seeing the + * DEBUG_DISASSEMBLE flag set, exits immediately after decoding + * the instruction. XXX --- CHECK THAT MEM IS NOT AFFECTED!!! + * Note the use of a copy of the register structure... + */ + for (i=0; i<n; i++) { + op1 = (*sys_rdb)(((u32)M.x86.R_CS<<4) + (M.x86.R_IP++)); + (x86emu_optab[op1])(op1); + } + /* end major hack mode. */ } -void x86emu_check_ip_access(void) +void x86emu_check_ip_access (void) { - /* NULL as of now */ + /* NULL as of now */ } -void x86emu_check_sp_access(void) +void x86emu_check_sp_access (void) { } -void x86emu_check_mem_access(u32 dummy) +void x86emu_check_mem_access (u32 dummy) { - /* check bounds, etc */ + /* check bounds, etc */ } -void x86emu_check_data_access(uint dummy1, uint dummy2) +void x86emu_check_data_access (uint dummy1, uint dummy2) { - /* check bounds, etc */ + /* check bounds, etc */ } -void x86emu_inc_decoded_inst_len(int x) +void x86emu_inc_decoded_inst_len (int x) { - M.x86.enc_pos += x; + M.x86.enc_pos += x; } -void x86emu_decode_printf(char *x) +void x86emu_decode_printf (char *x) { - sprintf(M.x86.decoded_buf + M.x86.enc_str_pos, "%s", x); - M.x86.enc_str_pos += strlen(x); + sprintf(M.x86.decoded_buf+M.x86.enc_str_pos,"%s",x); + M.x86.enc_str_pos += strlen(x); } -void x86emu_decode_printf2(char *x, int y) +void x86emu_decode_printf2 (char *x, int y) { - char temp[100]; - sprintf(temp, x, y); - sprintf(M.x86.decoded_buf + M.x86.enc_str_pos, "%s", temp); - M.x86.enc_str_pos += strlen(temp); + char temp[100]; + sprintf(temp,x,y); + sprintf(M.x86.decoded_buf+M.x86.enc_str_pos,"%s",temp); + M.x86.enc_str_pos += strlen(temp); } -void x86emu_end_instr(void) +void x86emu_end_instr (void) { - M.x86.enc_str_pos = 0; - M.x86.enc_pos = 0; + M.x86.enc_str_pos = 0; + M.x86.enc_pos = 0; } -static void print_encoded_bytes(u16 s, u16 o) +static void print_encoded_bytes (u16 s, u16 o) { - int i; - char buf1[64]; - for (i = 0; i < M.x86.enc_pos; i++) { - sprintf(buf1 + 2 * i, "%02x", fetch_data_byte_abs(s, o + i)); - } - printk("%-20s", buf1); + int i; + char buf1[64]; + for (i=0; i< M.x86.enc_pos; i++) { + sprintf(buf1+2*i,"%02x", fetch_data_byte_abs(s,o+i)); + } + printk("%-20s",buf1); } -static void print_decoded_instruction(void) +static void print_decoded_instruction (void) { - printk("%s", M.x86.decoded_buf); + printk("%s", M.x86.decoded_buf); } -void x86emu_print_int_vect(u16 iv) +void x86emu_print_int_vect (u16 iv) { - u16 seg, off; + u16 seg,off; - if (iv > 256) - return; - seg = fetch_data_word_abs(0, iv * 4); - off = fetch_data_word_abs(0, iv * 4 + 2); - printk("%04x:%04x ", seg, off); + if (iv > 256) return; + seg = fetch_data_word_abs(0,iv*4); + off = fetch_data_word_abs(0,iv*4+2); + printk("%04x:%04x ", seg, off); } -void X86EMU_dump_memory(u16 seg, u16 off, u32 amt) +void X86EMU_dump_memory (u16 seg, u16 off, u32 amt) { - u32 start = off & 0xfffffff0; - u32 end = (off + 16) & 0xfffffff0; - u32 i; - u32 current; - - current = start; - while (end <= off + amt) { - printk("%04x:%04x ", seg, start); - for (i = start; i < off; i++) - printk(" "); - for (; i < end; i++) - printk("%02x ", fetch_data_byte_abs(seg, i)); - printk("\n"); - start = end; - end = start + 16; - } + u32 start = off & 0xfffffff0; + u32 end = (off+16) & 0xfffffff0; + u32 i; + u32 current; + + current = start; + while (end <= off + amt) { + printk("%04x:%04x ", seg, start); + for (i=start; i< off; i++) + printk(" "); + for ( ; i< end; i++) + printk("%02x ", fetch_data_byte_abs(seg,i)); + printk("\n"); + start = end; + end = start + 16; + } } -void x86emu_single_step(void) +void x86emu_single_step (void) { - char s[1024]; - int ps[10]; - int ntok; - int cmd; - int done; - int segment; - int offset; - static int breakpoint; - static int noDecode = 1; - - char *p; - - if (DEBUG_BREAK()) { - if (M.x86.saved_ip != breakpoint) { - return; - } else { - M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; - M.x86.debug |= DEBUG_TRACE_F; - M.x86.debug &= ~DEBUG_BREAK_F; - print_decoded_instruction(); - X86EMU_trace_regs(); - } - } - done = 0; - offset = M.x86.saved_ip; - while (!done) { - printk("%x:%x -", M.x86.saved_cs, offset); - p = fgets(s, 1023, stdin); - cmd = parse_line(s, ps, &ntok); - switch (cmd) { - case 'u': - disassemble_forward(M.x86.saved_cs, (u16) offset, 10); - break; - case 'd': - if (ntok == 2) { - segment = M.x86.saved_cs; - offset = ps[1]; - X86EMU_dump_memory(segment, (u16) offset, 16); - offset += 16; - } else if (ntok == 3) { - segment = ps[1]; - offset = ps[2]; - X86EMU_dump_memory(segment, (u16) offset, 16); - offset += 16; - } else { - segment = M.x86.saved_cs; - X86EMU_dump_memory(segment, (u16) offset, 16); - offset += 16; - } - break; - case 'c': - M.x86.debug ^= DEBUG_TRACECALL_F; - break; - case 's': - M.x86.debug ^= DEBUG_SVC_F | DEBUG_SYS_F | DEBUG_SYSINT_F; - break; - case 'r': - X86EMU_trace_regs(); - break; - case 'x': - X86EMU_trace_xregs(); - break; - case 'g': - if (ntok == 2) { - breakpoint = ps[1]; - if (noDecode) { - M.x86.debug |= DEBUG_DECODE_NOPRINT_F; - } else { - M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; - } - M.x86.debug &= ~DEBUG_TRACE_F; - M.x86.debug |= DEBUG_BREAK_F; - done = 1; - } - break; - case 'q': - exit(1); - case 'P': - noDecode = (noDecode) ? 0 : 1; - printk("Toggled decoding to %s\n", (noDecode) ? "FALSE" : "TRUE"); - break; - case 't': - case 0: - done = 1; - break; - } - } + char s[1024]; + int ps[10]; + int ntok; + int cmd; + int done; + int segment; + int offset; + static int breakpoint; + static int noDecode = 1; + + char *p; + + if (DEBUG_BREAK()) { + if (M.x86.saved_ip != breakpoint) { + return; + } else { + M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; + M.x86.debug |= DEBUG_TRACE_F; + M.x86.debug &= ~DEBUG_BREAK_F; + print_decoded_instruction (); + X86EMU_trace_regs(); + } + } + done=0; + offset = M.x86.saved_ip; + while (!done) { + printk("-"); + p = fgets(s, 1023, stdin); + cmd = parse_line(s, ps, &ntok); + switch(cmd) { + case 'u': + disassemble_forward(M.x86.saved_cs,(u16)offset,10); + break; + case 'd': + if (ntok == 2) { + segment = M.x86.saved_cs; + offset = ps[1]; + X86EMU_dump_memory(segment,(u16)offset,16); + offset += 16; + } else if (ntok == 3) { + segment = ps[1]; + offset = ps[2]; + X86EMU_dump_memory(segment,(u16)offset,16); + offset += 16; + } else { + segment = M.x86.saved_cs; + X86EMU_dump_memory(segment,(u16)offset,16); + offset += 16; + } + break; + case 'c': + M.x86.debug ^= DEBUG_TRACECALL_F; + break; + case 's': + M.x86.debug ^= DEBUG_SVC_F | DEBUG_SYS_F | DEBUG_SYSINT_F; + break; + case 'r': + X86EMU_trace_regs(); + break; + case 'x': + X86EMU_trace_xregs(); + break; + case 'g': + if (ntok == 2) { + breakpoint = ps[1]; + if (noDecode) { + M.x86.debug |= DEBUG_DECODE_NOPRINT_F; + } else { + M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; + } + M.x86.debug &= ~DEBUG_TRACE_F; + M.x86.debug |= DEBUG_BREAK_F; + done = 1; + } + break; + case 'q': + M.x86.debug |= DEBUG_EXIT; + return; + case 'P': + noDecode = (noDecode)?0:1; + printk("Toggled decoding to %s\n",(noDecode)?"FALSE":"TRUE"); + break; + case 't': + case 0: + done = 1; + break; + } + } } int X86EMU_trace_on(void) { - return M.x86.debug |= /*DEBUG_STEP_F | */ DEBUG_DECODE_F | DEBUG_TRACE_F; + return M.x86.debug |= DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F; } int X86EMU_trace_off(void) { - return M.x86.debug &= ~(DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F); + return M.x86.debug &= ~(DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F); } -int X86EMU_set_debug(int debug) +static int parse_line (char *s, int *ps, int *n) { - return M.x86.debug = debug; + int cmd; + + *n = 0; + while(*s == ' ' || *s == '\t') s++; + ps[*n] = *s; + switch (*s) { + case '\n': + *n += 1; + return 0; + default: + cmd = *s; + *n += 1; + } + + while (1) { + while (*s != ' ' && *s != '\t' && *s != '\n') s++; + + if (*s == '\n') + return cmd; + + while(*s == ' ' || *s == '\t') s++; + + sscanf(s,"%x",&ps[*n]); + *n += 1; + } } -static int parse_line(char *s, int *ps, int *n) -{ - int cmd; - - *n = 0; - while (*s == ' ' || *s == '\t') - s++; - ps[*n] = *s; - switch (*s) { - case '\n': - *n += 1; - return 0; - default: - cmd = *s; - *n += 1; - } - - while (1) { - while (*s != ' ' && *s != '\t' && *s != '\n') - s++; - - if (*s == '\n') - return cmd; - - while (*s == ' ' || *s == '\t') - s++; - - sscanf(s, "%x", &ps[*n]); - *n += 1; - } -} - -#endif /* DEBUG */ +#endif /* DEBUG */ -void x86emu_dump_regs(void) +void x86emu_dump_regs (void) { - printk("\tAX=%04x ", M.x86.R_AX); - printk("BX=%04x ", M.x86.R_BX); - printk("CX=%04x ", M.x86.R_CX); - printk("DX=%04x ", M.x86.R_DX); - printk("SP=%04x ", M.x86.R_SP); - printk("BP=%04x ", M.x86.R_BP); - printk("SI=%04x ", M.x86.R_SI); - printk("DI=%04x\n", M.x86.R_DI); - printk("\tDS=%04x ", M.x86.R_DS); - printk("ES=%04x ", M.x86.R_ES); - printk("SS=%04x ", M.x86.R_SS); - printk("CS=%04x ", M.x86.R_CS); - printk("IP=%04x ", M.x86.R_IP); - if (ACCESS_FLAG(F_OF)) - printk("OV "); /* CHECKED... */ - else - printk("NV "); - if (ACCESS_FLAG(F_DF)) - printk("DN "); - else - printk("UP "); - if (ACCESS_FLAG(F_IF)) - printk("EI "); - else - printk("DI "); - if (ACCESS_FLAG(F_SF)) - printk("NG "); - else - printk("PL "); - if (ACCESS_FLAG(F_ZF)) - printk("ZR "); - else - printk("NZ "); - if (ACCESS_FLAG(F_AF)) - printk("AC "); - else - printk("NA "); - if (ACCESS_FLAG(F_PF)) - printk("PE "); - else - printk("PO "); - if (ACCESS_FLAG(F_CF)) - printk("CY "); - else - printk("NC "); - printk("\n"); + printk("\tAX=%04x ", M.x86.R_AX ); + printk("BX=%04x ", M.x86.R_BX ); + printk("CX=%04x ", M.x86.R_CX ); + printk("DX=%04x ", M.x86.R_DX ); + printk("SP=%04x ", M.x86.R_SP ); + printk("BP=%04x ", M.x86.R_BP ); + printk("SI=%04x ", M.x86.R_SI ); + printk("DI=%04x\n", M.x86.R_DI ); + printk("\tDS=%04x ", M.x86.R_DS ); + printk("ES=%04x ", M.x86.R_ES ); + printk("SS=%04x ", M.x86.R_SS ); + printk("CS=%04x ", M.x86.R_CS ); + printk("IP=%04x ", M.x86.R_IP ); + if (ACCESS_FLAG(F_OF)) printk("OV "); /* CHECKED... */ + else printk("NV "); + if (ACCESS_FLAG(F_DF)) printk("DN "); + else printk("UP "); + if (ACCESS_FLAG(F_IF)) printk("EI "); + else printk("DI "); + if (ACCESS_FLAG(F_SF)) printk("NG "); + else printk("PL "); + if (ACCESS_FLAG(F_ZF)) printk("ZR "); + else printk("NZ "); + if (ACCESS_FLAG(F_AF)) printk("AC "); + else printk("NA "); + if (ACCESS_FLAG(F_PF)) printk("PE "); + else printk("PO "); + if (ACCESS_FLAG(F_CF)) printk("CY "); + else printk("NC "); + printk("\n"); } -void x86emu_dump_xregs(void) +void x86emu_dump_xregs (void) { - printk("\tEAX=%08x ", M.x86.R_EAX); - printk("EBX=%08x ", M.x86.R_EBX); - printk("ECX=%08x ", M.x86.R_ECX); - printk("EDX=%08x \n", M.x86.R_EDX); - printk("\tESP=%08x ", M.x86.R_ESP); - printk("EBP=%08x ", M.x86.R_EBP); - printk("ESI=%08x ", M.x86.R_ESI); - printk("EDI=%08x\n", M.x86.R_EDI); - printk("\tDS=%04x ", M.x86.R_DS); - printk("ES=%04x ", M.x86.R_ES); - printk("SS=%04x ", M.x86.R_SS); - printk("CS=%04x ", M.x86.R_CS); - printk("EIP=%08x\n\t", M.x86.R_EIP); - if (ACCESS_FLAG(F_OF)) - printk("OV "); /* CHECKED... */ - else - printk("NV "); - if (ACCESS_FLAG(F_DF)) - printk("DN "); - else - printk("UP "); - if (ACCESS_FLAG(F_IF)) - printk("EI "); - else - printk("DI "); - if (ACCESS_FLAG(F_SF)) - printk("NG "); - else - printk("PL "); - if (ACCESS_FLAG(F_ZF)) - printk("ZR "); - else - printk("NZ "); - if (ACCESS_FLAG(F_AF)) - printk("AC "); - else - printk("NA "); - if (ACCESS_FLAG(F_PF)) - printk("PE "); - else - printk("PO "); - if (ACCESS_FLAG(F_CF)) - printk("CY "); - else - printk("NC "); - printk("\n"); + printk("\tEAX=%08x ", M.x86.R_EAX ); + printk("EBX=%08x ", M.x86.R_EBX ); + printk("ECX=%08x ", M.x86.R_ECX ); + printk("EDX=%08x \n", M.x86.R_EDX ); + printk("\tESP=%08x ", M.x86.R_ESP ); + printk("EBP=%08x ", M.x86.R_EBP ); + printk("ESI=%08x ", M.x86.R_ESI ); + printk("EDI=%08x\n", M.x86.R_EDI ); + printk("\tDS=%04x ", M.x86.R_DS ); + printk("ES=%04x ", M.x86.R_ES ); + printk("SS=%04x ", M.x86.R_SS ); + printk("CS=%04x ", M.x86.R_CS ); + printk("EIP=%08x\n\t", M.x86.R_EIP ); + if (ACCESS_FLAG(F_OF)) printk("OV "); /* CHECKED... */ + else printk("NV "); + if (ACCESS_FLAG(F_DF)) printk("DN "); + else printk("UP "); + if (ACCESS_FLAG(F_IF)) printk("EI "); + else printk("DI "); + if (ACCESS_FLAG(F_SF)) printk("NG "); + else printk("PL "); + if (ACCESS_FLAG(F_ZF)) printk("ZR "); + else printk("NZ "); + if (ACCESS_FLAG(F_AF)) printk("AC "); + else printk("NA "); + if (ACCESS_FLAG(F_PF)) printk("PE "); + else printk("PO "); + if (ACCESS_FLAG(F_CF)) printk("CY "); + else printk("NC "); + printk("\n"); } diff --git a/util/vgabios/x86emu/src/x86emu/decode.c b/util/vgabios/x86emu/src/x86emu/decode.c index a97edd92a6..910d1e9796 100644 --- a/util/vgabios/x86emu/src/x86emu/decode.c +++ b/util/vgabios/x86emu/src/x86emu/decode.c @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,17 +28,15 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: This file includes subroutines which are related to -* instruction decoding and accessess of immediate data via IP. etc. +* instruction decoding and accessess of immediate data via IP. etc. * ****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/decode.c,v 1.9 2001/01/06 20:19:03 tsi Exp $ */ - #include "x86emu/x86emui.h" /*----------------------------- Implementation ----------------------------*/ @@ -49,23 +47,23 @@ Handles any pending asychronous interrupts. ****************************************************************************/ static void x86emu_intr_handle(void) { - u8 intno; - - if (M.x86.intr & INTR_SYNCH) { - intno = M.x86.intno; - if (_X86EMU_intrTab[intno]) { - (*_X86EMU_intrTab[intno]) (intno); - } else { - push_word((u16) M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(intno * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(intno * 4); - M.x86.intr = 0; - } - } + u8 intno; + + if (M.x86.intr & INTR_SYNCH) { + intno = M.x86.intno; + if (_X86EMU_intrTab[intno]) { + (*_X86EMU_intrTab[intno])(intno); + } else { + push_word((u16)M.x86.R_FLG); + CLEAR_FLAG(F_IF); + CLEAR_FLAG(F_TF); + push_word(M.x86.R_CS); + M.x86.R_CS = mem_access_word(intno * 4 + 2); + push_word(M.x86.R_IP); + M.x86.R_IP = mem_access_word(intno * 4); + M.x86.intr = 0; + } + } } /**************************************************************************** @@ -76,10 +74,11 @@ REMARKS: Raise the specified interrupt to be handled before the execution of the next instruction. ****************************************************************************/ -void x86emu_intr_raise(u8 intrnum) +void x86emu_intr_raise( + u8 intrnum) { - M.x86.intno = intrnum; - M.x86.intr |= INTR_SYNCH; + M.x86.intno = intrnum; + M.x86.intr |= INTR_SYNCH; } /**************************************************************************** @@ -90,33 +89,41 @@ original real mode call. ****************************************************************************/ void X86EMU_exec(void) { - u8 op1; - - M.x86.intr = 0; - DB(x86emu_end_instr(); - ) - - for (;;) { - DB(if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - /* If debugging, save the IP and CS values. */ - SAVE_IP_CS(M.x86.R_CS, M.x86.R_IP); - INC_DECODED_INST_LEN(1); - if (M.x86.intr) { - if (M.x86.intr & INTR_HALTED) { - DB(printk("halted\n"); X86EMU_trace_regs(); - ) - return; - } - if (((M.x86.intr & INTR_SYNCH) - && (M.x86.intno == 0 || M.x86.intno == 2)) - || !ACCESS_FLAG(F_IF)) { - x86emu_intr_handle(); - } - } - op1 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++)); - (*x86emu_optab[op1]) (op1); - } + u8 op1; + + M.x86.intr = 0; + DB(x86emu_end_instr();) + + for (;;) { +DB( if (CHECK_IP_FETCH()) + x86emu_check_ip_access();) + /* If debugging, save the IP and CS values. */ + SAVE_IP_CS(M.x86.R_CS, M.x86.R_IP); + INC_DECODED_INST_LEN(1); + if (M.x86.intr) { + if (M.x86.intr & INTR_HALTED) { +DB( if (M.x86.R_SP != 0) { + printk("halted\n"); + X86EMU_trace_regs(); + } + else { + if (M.x86.debug) + printk("Service completed successfully\n"); + }) + return; + } + if (((M.x86.intr & INTR_SYNCH) && (M.x86.intno == 0 || M.x86.intno == 2)) || + !ACCESS_FLAG(F_IF)) { + x86emu_intr_handle(); + } + } + op1 = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); + (*x86emu_optab[op1])(op1); + if (M.x86.debug & DEBUG_EXIT) { + M.x86.debug &= ~DEBUG_EXIT; + return; + } + } } /**************************************************************************** @@ -125,14 +132,14 @@ Halts the system by setting the halted system flag. ****************************************************************************/ void X86EMU_halt_sys(void) { - M.x86.intr |= INTR_HALTED; + M.x86.intr |= INTR_HALTED; } /**************************************************************************** PARAMETERS: -mod - Mod value from decoded byte -regh - Reg h value from decoded byte -regl - Reg l value from decoded byte +mod - Mod value from decoded byte +regh - Reg h value from decoded byte +regl - Reg l value from decoded byte REMARKS: Raise the specified interrupt to be handled before the execution of the @@ -140,17 +147,20 @@ next instruction. NOTE: Do not inline this function, as (*sys_rdb) is already inline! ****************************************************************************/ -void fetch_decode_modrm(int *mod, int *regh, int *regl) +void fetch_decode_modrm( + int *mod, + int *regh, + int *regl) { - int fetched; - - DB(if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++)); - INC_DECODED_INST_LEN(1); - *mod = (fetched >> 6) & 0x03; - *regh = (fetched >> 3) & 0x07; - *regl = (fetched >> 0) & 0x07; + int fetched; + +DB( if (CHECK_IP_FETCH()) + x86emu_check_ip_access();) + fetched = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); + INC_DECODED_INST_LEN(1); + *mod = (fetched >> 6) & 0x03; + *regh = (fetched >> 3) & 0x07; + *regl = (fetched >> 0) & 0x07; } /**************************************************************************** @@ -165,13 +175,13 @@ NOTE: Do not inline this function, as (*sys_rdb) is already inline! ****************************************************************************/ u8 fetch_byte_imm(void) { - u8 fetched; + u8 fetched; - DB(if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++)); - INC_DECODED_INST_LEN(1); - return fetched; +DB( if (CHECK_IP_FETCH()) + x86emu_check_ip_access();) + fetched = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); + INC_DECODED_INST_LEN(1); + return fetched; } /**************************************************************************** @@ -186,14 +196,14 @@ NOTE: Do not inline this function, as (*sys_rdw) is already inline! ****************************************************************************/ u16 fetch_word_imm(void) { - u16 fetched; - - DB(if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdw) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP)); - M.x86.R_IP += 2; - INC_DECODED_INST_LEN(2); - return fetched; + u16 fetched; + +DB( if (CHECK_IP_FETCH()) + x86emu_check_ip_access();) + fetched = (*sys_rdw)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP)); + M.x86.R_IP += 2; + INC_DECODED_INST_LEN(2); + return fetched; } /**************************************************************************** @@ -208,14 +218,14 @@ NOTE: Do not inline this function, as (*sys_rdw) is already inline! ****************************************************************************/ u32 fetch_long_imm(void) { - u32 fetched; - - DB(if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdl) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP)); - M.x86.R_IP += 4; - INC_DECODED_INST_LEN(4); - return fetched; + u32 fetched; + +DB( if (CHECK_IP_FETCH()) + x86emu_check_ip_access();) + fetched = (*sys_rdl)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP)); + M.x86.R_IP += 4; + INC_DECODED_INST_LEN(4); + return fetched; } /**************************************************************************** @@ -233,169 +243,178 @@ decodings of addressing modes would have to set/clear a bit describing whether the access is relative to DS or SS. That is the function of the cpu-state-varible M.x86.mode. There are several potential states: - repe prefix seen (handled elsewhere) - repne prefix seen (ditto) + repe prefix seen (handled elsewhere) + repne prefix seen (ditto) - cs segment override - ds segment override - es segment override - fs segment override - gs segment override - ss segment override + cs segment override + ds segment override + es segment override + fs segment override + gs segment override + ss segment override - ds/ss select (in absense of override) + ds/ss select (in absense of override) Each of the above 7 items are handled with a bit in the mode field. ****************************************************************************/ _INLINE u32 get_data_segment(void) { -#define GET_SEGMENT(segment) - switch (M.x86.mode & SYSMODE_SEGMASK) { - case 0: /* default case: use ds register */ - case SYSMODE_SEGOVR_DS: - case SYSMODE_SEGOVR_DS | SYSMODE_SEG_DS_SS: - return M.x86.R_DS; - case SYSMODE_SEG_DS_SS: /* non-overridden, use ss register */ - return M.x86.R_SS; - case SYSMODE_SEGOVR_CS: - case SYSMODE_SEGOVR_CS | SYSMODE_SEG_DS_SS: - return M.x86.R_CS; - case SYSMODE_SEGOVR_ES: - case SYSMODE_SEGOVR_ES | SYSMODE_SEG_DS_SS: - return M.x86.R_ES; - case SYSMODE_SEGOVR_FS: - case SYSMODE_SEGOVR_FS | SYSMODE_SEG_DS_SS: - return M.x86.R_FS; - case SYSMODE_SEGOVR_GS: - case SYSMODE_SEGOVR_GS | SYSMODE_SEG_DS_SS: - return M.x86.R_GS; - case SYSMODE_SEGOVR_SS: - case SYSMODE_SEGOVR_SS | SYSMODE_SEG_DS_SS: - return M.x86.R_SS; - default: -#ifdef DEBUG - printk("error: should not happen: multiple overrides.\n"); +#define GET_SEGMENT(segment) + switch (M.x86.mode & SYSMODE_SEGMASK) { + case 0: /* default case: use ds register */ + case SYSMODE_SEGOVR_DS: + case SYSMODE_SEGOVR_DS | SYSMODE_SEG_DS_SS: + return M.x86.R_DS; + case SYSMODE_SEG_DS_SS: /* non-overridden, use ss register */ + return M.x86.R_SS; + case SYSMODE_SEGOVR_CS: + case SYSMODE_SEGOVR_CS | SYSMODE_SEG_DS_SS: + return M.x86.R_CS; + case SYSMODE_SEGOVR_ES: + case SYSMODE_SEGOVR_ES | SYSMODE_SEG_DS_SS: + return M.x86.R_ES; + case SYSMODE_SEGOVR_FS: + case SYSMODE_SEGOVR_FS | SYSMODE_SEG_DS_SS: + return M.x86.R_FS; + case SYSMODE_SEGOVR_GS: + case SYSMODE_SEGOVR_GS | SYSMODE_SEG_DS_SS: + return M.x86.R_GS; + case SYSMODE_SEGOVR_SS: + case SYSMODE_SEGOVR_SS | SYSMODE_SEG_DS_SS: + return M.x86.R_SS; + default: +#ifdef DEBUG + printk("error: should not happen: multiple overrides.\n"); #endif - HALT_SYS(); - return 0; - } + HALT_SYS(); + return 0; + } } /**************************************************************************** PARAMETERS: -offset - Offset to load data from +offset - Offset to load data from RETURNS: Byte value read from the absolute memory location. NOTE: Do not inline this function as (*sys_rdX) is already inline! ****************************************************************************/ -u8 fetch_data_byte(uint offset) +u8 fetch_data_byte( + uint offset) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16) get_data_segment(), offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access((u16)get_data_segment(), offset); #endif - return (*sys_rdb) ((get_data_segment() << 4) + offset); + return (*sys_rdb)((get_data_segment() << 4) + offset); } /**************************************************************************** PARAMETERS: -offset - Offset to load data from +offset - Offset to load data from RETURNS: Word value read from the absolute memory location. NOTE: Do not inline this function as (*sys_rdX) is already inline! ****************************************************************************/ -u16 fetch_data_word(uint offset) +u16 fetch_data_word( + uint offset) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16) get_data_segment(), offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access((u16)get_data_segment(), offset); #endif - return (*sys_rdw) ((get_data_segment() << 4) + offset); + return (*sys_rdw)((get_data_segment() << 4) + offset); } /**************************************************************************** PARAMETERS: -offset - Offset to load data from +offset - Offset to load data from RETURNS: Long value read from the absolute memory location. NOTE: Do not inline this function as (*sys_rdX) is already inline! ****************************************************************************/ -u32 fetch_data_long(uint offset) +u32 fetch_data_long( + uint offset) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16) get_data_segment(), offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access((u16)get_data_segment(), offset); #endif - return (*sys_rdl) ((get_data_segment() << 4) + offset); + return (*sys_rdl)((get_data_segment() << 4) + offset); } /**************************************************************************** PARAMETERS: -segment - Segment to load data from -offset - Offset to load data from +segment - Segment to load data from +offset - Offset to load data from RETURNS: Byte value read from the absolute memory location. NOTE: Do not inline this function as (*sys_rdX) is already inline! ****************************************************************************/ -u8 fetch_data_byte_abs(uint segment, uint offset) +u8 fetch_data_byte_abs( + uint segment, + uint offset) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access(segment, offset); #endif - return (*sys_rdb) (((u32) segment << 4) + offset); + return (*sys_rdb)(((u32)segment << 4) + offset); } /**************************************************************************** PARAMETERS: -segment - Segment to load data from -offset - Offset to load data from +segment - Segment to load data from +offset - Offset to load data from RETURNS: Word value read from the absolute memory location. NOTE: Do not inline this function as (*sys_rdX) is already inline! ****************************************************************************/ -u16 fetch_data_word_abs(uint segment, uint offset) +u16 fetch_data_word_abs( + uint segment, + uint offset) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access(segment, offset); #endif - return (*sys_rdw) (((u32) segment << 4) + offset); + return (*sys_rdw)(((u32)segment << 4) + offset); } /**************************************************************************** PARAMETERS: -segment - Segment to load data from -offset - Offset to load data from +segment - Segment to load data from +offset - Offset to load data from RETURNS: Long value read from the absolute memory location. NOTE: Do not inline this function as (*sys_rdX) is already inline! ****************************************************************************/ -u32 fetch_data_long_abs(uint segment, uint offset) +u32 fetch_data_long_abs( + uint segment, + uint offset) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access(segment, offset); #endif - return (*sys_rdl) (((u32) segment << 4) + offset); + return (*sys_rdl)(((u32)segment << 4) + offset); } /**************************************************************************** PARAMETERS: -offset - Offset to store data at -val - Value to store +offset - Offset to store data at +val - Value to store REMARKS: Writes a word value to an segmented memory location. The segment used is @@ -403,19 +422,21 @@ the current 'default' segment, which may have been overridden. NOTE: Do not inline this function as (*sys_wrX) is already inline! ****************************************************************************/ -void store_data_byte(uint offset, u8 val) +void store_data_byte( + uint offset, + u8 val) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16) get_data_segment(), offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access((u16)get_data_segment(), offset); #endif - (*sys_wrb) ((get_data_segment() << 4) + offset, val); + (*sys_wrb)((get_data_segment() << 4) + offset, val); } /**************************************************************************** PARAMETERS: -offset - Offset to store data at -val - Value to store +offset - Offset to store data at +val - Value to store REMARKS: Writes a word value to an segmented memory location. The segment used is @@ -423,19 +444,21 @@ the current 'default' segment, which may have been overridden. NOTE: Do not inline this function as (*sys_wrX) is already inline! ****************************************************************************/ -void store_data_word(uint offset, u16 val) +void store_data_word( + uint offset, + u16 val) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16) get_data_segment(), offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access((u16)get_data_segment(), offset); #endif - (*sys_wrw) ((get_data_segment() << 4) + offset, val); + (*sys_wrw)((get_data_segment() << 4) + offset, val); } /**************************************************************************** PARAMETERS: -offset - Offset to store data at -val - Value to store +offset - Offset to store data at +val - Value to store REMARKS: Writes a long value to an segmented memory location. The segment used is @@ -443,78 +466,89 @@ the current 'default' segment, which may have been overridden. NOTE: Do not inline this function as (*sys_wrX) is already inline! ****************************************************************************/ -void store_data_long(uint offset, u32 val) +void store_data_long( + uint offset, + u32 val) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16) get_data_segment(), offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access((u16)get_data_segment(), offset); #endif - (*sys_wrl) ((get_data_segment() << 4) + offset, val); + (*sys_wrl)((get_data_segment() << 4) + offset, val); } /**************************************************************************** PARAMETERS: -segment - Segment to store data at -offset - Offset to store data at -val - Value to store +segment - Segment to store data at +offset - Offset to store data at +val - Value to store REMARKS: Writes a byte value to an absolute memory location. NOTE: Do not inline this function as (*sys_wrX) is already inline! ****************************************************************************/ -void store_data_byte_abs(uint segment, uint offset, u8 val) +void store_data_byte_abs( + uint segment, + uint offset, + u8 val) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access(segment, offset); #endif - (*sys_wrb) (((u32) segment << 4) + offset, val); + (*sys_wrb)(((u32)segment << 4) + offset, val); } /**************************************************************************** PARAMETERS: -segment - Segment to store data at -offset - Offset to store data at -val - Value to store +segment - Segment to store data at +offset - Offset to store data at +val - Value to store REMARKS: Writes a word value to an absolute memory location. NOTE: Do not inline this function as (*sys_wrX) is already inline! ****************************************************************************/ -void store_data_word_abs(uint segment, uint offset, u16 val) +void store_data_word_abs( + uint segment, + uint offset, + u16 val) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access(segment, offset); #endif - (*sys_wrw) (((u32) segment << 4) + offset, val); + (*sys_wrw)(((u32)segment << 4) + offset, val); } /**************************************************************************** PARAMETERS: -segment - Segment to store data at -offset - Offset to store data at -val - Value to store +segment - Segment to store data at +offset - Offset to store data at +val - Value to store REMARKS: Writes a long value to an absolute memory location. NOTE: Do not inline this function as (*sys_wrX) is already inline! ****************************************************************************/ -void store_data_long_abs(uint segment, uint offset, u32 val) +void store_data_long_abs( + uint segment, + uint offset, + u32 val) { #ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); + if (CHECK_DATA_ACCESS()) + x86emu_check_data_access(segment, offset); #endif - (*sys_wrl) (((u32) segment << 4) + offset, val); + (*sys_wrl)(((u32)segment << 4) + offset, val); } /**************************************************************************** PARAMETERS: -reg - Register to decode +reg - Register to decode RETURNS: Pointer to the appropriate register @@ -523,41 +557,42 @@ REMARKS: Return a pointer to the register given by the R/RM field of the modrm byte, for byte operands. Also enables the decoding of instructions. ****************************************************************************/ -u8 *decode_rm_byte_register(int reg) +u8* decode_rm_byte_register( + int reg) { - switch (reg) { - case 0: - DECODE_PRINTF("AL"); - return &M.x86.R_AL; - case 1: - DECODE_PRINTF("CL"); - return &M.x86.R_CL; - case 2: - DECODE_PRINTF("DL"); - return &M.x86.R_DL; - case 3: - DECODE_PRINTF("BL"); - return &M.x86.R_BL; - case 4: - DECODE_PRINTF("AH"); - return &M.x86.R_AH; - case 5: - DECODE_PRINTF("CH"); - return &M.x86.R_CH; - case 6: - DECODE_PRINTF("DH"); - return &M.x86.R_DH; - case 7: - DECODE_PRINTF("BH"); - return &M.x86.R_BH; - } - HALT_SYS(); - return NULL; /* NOT REACHED OR REACHED ON ERROR */ + switch (reg) { + case 0: + DECODE_PRINTF("AL"); + return &M.x86.R_AL; + case 1: + DECODE_PRINTF("CL"); + return &M.x86.R_CL; + case 2: + DECODE_PRINTF("DL"); + return &M.x86.R_DL; + case 3: + DECODE_PRINTF("BL"); + return &M.x86.R_BL; + case 4: + DECODE_PRINTF("AH"); + return &M.x86.R_AH; + case 5: + DECODE_PRINTF("CH"); + return &M.x86.R_CH; + case 6: + DECODE_PRINTF("DH"); + return &M.x86.R_DH; + case 7: + DECODE_PRINTF("BH"); + return &M.x86.R_BH; + } + HALT_SYS(); + return NULL; /* NOT REACHED OR REACHED ON ERROR */ } /**************************************************************************** PARAMETERS: -reg - Register to decode +reg - Register to decode RETURNS: Pointer to the appropriate register @@ -566,41 +601,42 @@ REMARKS: Return a pointer to the register given by the R/RM field of the modrm byte, for word operands. Also enables the decoding of instructions. ****************************************************************************/ -u16 *decode_rm_word_register(int reg) +u16* decode_rm_word_register( + int reg) { - switch (reg) { - case 0: - DECODE_PRINTF("AX"); - return &M.x86.R_AX; - case 1: - DECODE_PRINTF("CX"); - return &M.x86.R_CX; - case 2: - DECODE_PRINTF("DX"); - return &M.x86.R_DX; - case 3: - DECODE_PRINTF("BX"); - return &M.x86.R_BX; - case 4: - DECODE_PRINTF("SP"); - return &M.x86.R_SP; - case 5: - DECODE_PRINTF("BP"); - return &M.x86.R_BP; - case 6: - DECODE_PRINTF("SI"); - return &M.x86.R_SI; - case 7: - DECODE_PRINTF("DI"); - return &M.x86.R_DI; - } - HALT_SYS(); - return NULL; /* NOTREACHED OR REACHED ON ERROR */ + switch (reg) { + case 0: + DECODE_PRINTF("AX"); + return &M.x86.R_AX; + case 1: + DECODE_PRINTF("CX"); + return &M.x86.R_CX; + case 2: + DECODE_PRINTF("DX"); + return &M.x86.R_DX; + case 3: + DECODE_PRINTF("BX"); + return &M.x86.R_BX; + case 4: + DECODE_PRINTF("SP"); + return &M.x86.R_SP; + case 5: + DECODE_PRINTF("BP"); + return &M.x86.R_BP; + case 6: + DECODE_PRINTF("SI"); + return &M.x86.R_SI; + case 7: + DECODE_PRINTF("DI"); + return &M.x86.R_DI; + } + HALT_SYS(); + return NULL; /* NOTREACHED OR REACHED ON ERROR */ } /**************************************************************************** PARAMETERS: -reg - Register to decode +reg - Register to decode RETURNS: Pointer to the appropriate register @@ -609,41 +645,42 @@ REMARKS: Return a pointer to the register given by the R/RM field of the modrm byte, for dword operands. Also enables the decoding of instructions. ****************************************************************************/ -u32 *decode_rm_long_register(int reg) +u32* decode_rm_long_register( + int reg) { - switch (reg) { - case 0: - DECODE_PRINTF("EAX"); - return &M.x86.R_EAX; - case 1: - DECODE_PRINTF("ECX"); - return &M.x86.R_ECX; - case 2: - DECODE_PRINTF("EDX"); - return &M.x86.R_EDX; - case 3: - DECODE_PRINTF("EBX"); - return &M.x86.R_EBX; - case 4: - DECODE_PRINTF("ESP"); - return &M.x86.R_ESP; - case 5: - DECODE_PRINTF("EBP"); - return &M.x86.R_EBP; - case 6: - DECODE_PRINTF("ESI"); - return &M.x86.R_ESI; - case 7: - DECODE_PRINTF("EDI"); - return &M.x86.R_EDI; - } - HALT_SYS(); - return NULL; /* NOTREACHED OR REACHED ON ERROR */ + switch (reg) { + case 0: + DECODE_PRINTF("EAX"); + return &M.x86.R_EAX; + case 1: + DECODE_PRINTF("ECX"); + return &M.x86.R_ECX; + case 2: + DECODE_PRINTF("EDX"); + return &M.x86.R_EDX; + case 3: + DECODE_PRINTF("EBX"); + return &M.x86.R_EBX; + case 4: + DECODE_PRINTF("ESP"); + return &M.x86.R_ESP; + case 5: + DECODE_PRINTF("EBP"); + return &M.x86.R_EBP; + case 6: + DECODE_PRINTF("ESI"); + return &M.x86.R_ESI; + case 7: + DECODE_PRINTF("EDI"); + return &M.x86.R_EDI; + } + HALT_SYS(); + return NULL; /* NOTREACHED OR REACHED ON ERROR */ } /**************************************************************************** PARAMETERS: -reg - Register to decode +reg - Register to decode RETURNS: Pointer to the appropriate register @@ -653,40 +690,172 @@ Return a pointer to the register given by the R/RM field of the modrm byte, for word operands, modified from above for the weirdo special case of segreg operands. Also enables the decoding of instructions. ****************************************************************************/ -u16 *decode_rm_seg_register(int reg) +u16* decode_rm_seg_register( + int reg) +{ + switch (reg) { + case 0: + DECODE_PRINTF("ES"); + return &M.x86.R_ES; + case 1: + DECODE_PRINTF("CS"); + return &M.x86.R_CS; + case 2: + DECODE_PRINTF("SS"); + return &M.x86.R_SS; + case 3: + DECODE_PRINTF("DS"); + return &M.x86.R_DS; + case 4: + DECODE_PRINTF("FS"); + return &M.x86.R_FS; + case 5: + DECODE_PRINTF("GS"); + return &M.x86.R_GS; + case 6: + case 7: + DECODE_PRINTF("ILLEGAL SEGREG"); + break; + } + HALT_SYS(); + return NULL; /* NOT REACHED OR REACHED ON ERROR */ +} + +/**************************************************************************** +PARAMETERS: +scale - scale value of SIB byte +index - index value of SIB byte + +RETURNS: +Value of scale * index + +REMARKS: +Decodes scale/index of SIB byte and returns relevant offset part of +effective address. +****************************************************************************/ +unsigned decode_sib_si( + int scale, + int index) +{ + scale = 1 << scale; + if (scale > 1) { + DECODE_PRINTF2("[%d*", scale); + } else { + DECODE_PRINTF("["); + } + switch (index) { + case 0: + DECODE_PRINTF("EAX]"); + return M.x86.R_EAX * index; + case 1: + DECODE_PRINTF("ECX]"); + return M.x86.R_ECX * index; + case 2: + DECODE_PRINTF("EDX]"); + return M.x86.R_EDX * index; + case 3: + DECODE_PRINTF("EBX]"); + return M.x86.R_EBX * index; + case 4: + DECODE_PRINTF("0]"); + return 0; + case 5: + DECODE_PRINTF("EBP]"); + return M.x86.R_EBP * index; + case 6: + DECODE_PRINTF("ESI]"); + return M.x86.R_ESI * index; + case 7: + DECODE_PRINTF("EDI]"); + return M.x86.R_EDI * index; + } + HALT_SYS(); + return 0; /* NOT REACHED OR REACHED ON ERROR */ +} + +/**************************************************************************** +PARAMETERS: +mod - MOD value of preceding ModR/M byte + +RETURNS: +Offset in memory for the address decoding + +REMARKS: +Decodes SIB addressing byte and returns calculated effective address. +****************************************************************************/ +unsigned decode_sib_address( + int mod) { - switch (reg) { - case 0: - DECODE_PRINTF("ES"); - return &M.x86.R_ES; - case 1: - DECODE_PRINTF("CS"); - return &M.x86.R_CS; - case 2: - DECODE_PRINTF("SS"); - return &M.x86.R_SS; - case 3: - DECODE_PRINTF("DS"); - return &M.x86.R_DS; - case 4: - DECODE_PRINTF("FS"); - return &M.x86.R_FS; - case 5: - DECODE_PRINTF("GS"); - return &M.x86.R_GS; - - case 6: - case 7: - DECODE_PRINTF("ILLEGAL SEGREG"); - break; - } - HALT_SYS(); - return NULL; /* NOT REACHED OR REACHED ON ERROR */ + int sib = fetch_byte_imm(); + int ss = (sib >> 6) & 0x03; + int index = (sib >> 3) & 0x07; + int base = sib & 0x07; + int offset = 0; + int displacement; + + switch (base) { + case 0: + DECODE_PRINTF("[EAX]"); + offset = M.x86.R_EAX; + break; + case 1: + DECODE_PRINTF("[ECX]"); + offset = M.x86.R_ECX; + break; + case 2: + DECODE_PRINTF("[EDX]"); + offset = M.x86.R_EDX; + break; + case 3: + DECODE_PRINTF("[EBX]"); + offset = M.x86.R_EBX; + break; + case 4: + DECODE_PRINTF("[ESP]"); + offset = M.x86.R_ESP; + break; + case 5: + switch (mod) { + case 0: + displacement = (s32)fetch_long_imm(); + DECODE_PRINTF2("[%d]", displacement); + offset = displacement; + break; + case 1: + displacement = (s8)fetch_byte_imm(); + DECODE_PRINTF2("[%d][EBP]", displacement); + offset = M.x86.R_EBP + displacement; + break; + case 2: + displacement = (s32)fetch_long_imm(); + DECODE_PRINTF2("[%d][EBP]", displacement); + offset = M.x86.R_EBP + displacement; + break; + default: + HALT_SYS(); + } + DECODE_PRINTF("[EAX]"); + offset = M.x86.R_EAX; + break; + case 6: + DECODE_PRINTF("[ESI]"); + offset = M.x86.R_ESI; + break; + case 7: + DECODE_PRINTF("[EDI]"); + offset = M.x86.R_EDI; + break; + default: + HALT_SYS(); + } + offset += decode_sib_si(ss, index); + return offset; + } /**************************************************************************** PARAMETERS: -rm - RM value to decode +rm - RM value to decode RETURNS: Offset in memory for the address decoding @@ -695,55 +864,87 @@ REMARKS: Return the offset given by mod=00 addressing. Also enables the decoding of instructions. -NOTE: The code which specifies the corresponding segment (ds vs ss) - below in the case of [BP+..]. The assumption here is that at the - point that this subroutine is called, the bit corresponding to - SYSMODE_SEG_DS_SS will be zero. After every instruction - except the segment override instructions, this bit (as well - as any bits indicating segment overrides) will be clear. So - if a SS access is needed, set this bit. Otherwise, DS access - occurs (unless any of the segment override bits are set). +NOTE: The code which specifies the corresponding segment (ds vs ss) + below in the case of [BP+..]. The assumption here is that at the + point that this subroutine is called, the bit corresponding to + SYSMODE_SEG_DS_SS will be zero. After every instruction + except the segment override instructions, this bit (as well + as any bits indicating segment overrides) will be clear. So + if a SS access is needed, set this bit. Otherwise, DS access + occurs (unless any of the segment override bits are set). ****************************************************************************/ -unsigned decode_rm00_address(int rm) +unsigned decode_rm00_address( + int rm) { - unsigned offset; - - switch (rm) { - case 0: - DECODE_PRINTF("[BX+SI]"); - return M.x86.R_BX + M.x86.R_SI; - case 1: - DECODE_PRINTF("[BX+DI]"); - return M.x86.R_BX + M.x86.R_DI; - case 2: - DECODE_PRINTF("[BP+SI]"); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + M.x86.R_SI; - case 3: - DECODE_PRINTF("[BP+DI]"); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + M.x86.R_DI; - case 4: - DECODE_PRINTF("[SI]"); - return M.x86.R_SI; - case 5: - DECODE_PRINTF("[DI]"); - return M.x86.R_DI; - case 6: - offset = fetch_word_imm(); - DECODE_PRINTF2("[%04x]", offset); - return offset; - case 7: - DECODE_PRINTF("[BX]"); - return M.x86.R_BX; - } - HALT_SYS(); - return 0; + unsigned offset; + + if (M.x86.mode & SYSMODE_PREFIX_ADDR) { + /* 32-bit addressing */ + switch (rm) { + case 0: + DECODE_PRINTF("[EAX]"); + return M.x86.R_EAX; + case 1: + DECODE_PRINTF("[ECX]"); + return M.x86.R_ECX; + case 2: + DECODE_PRINTF("[EDX]"); + return M.x86.R_EDX; + case 3: + DECODE_PRINTF("[EBX]"); + return M.x86.R_EBX; + case 4: + return decode_sib_address(0); + case 5: + offset = fetch_long_imm(); + DECODE_PRINTF2("[%08x]", offset); + return offset; + case 6: + DECODE_PRINTF("[ESI]"); + return M.x86.R_ESI; + case 7: + DECODE_PRINTF("[EDI]"); + return M.x86.R_EDI; + } + } else { + /* 16-bit addressing */ + switch (rm) { + case 0: + DECODE_PRINTF("[BX+SI]"); + return (M.x86.R_BX + M.x86.R_SI) & 0xffff; + case 1: + DECODE_PRINTF("[BX+DI]"); + return (M.x86.R_BX + M.x86.R_DI) & 0xffff; + case 2: + DECODE_PRINTF("[BP+SI]"); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + M.x86.R_SI) & 0xffff; + case 3: + DECODE_PRINTF("[BP+DI]"); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + M.x86.R_DI) & 0xffff; + case 4: + DECODE_PRINTF("[SI]"); + return M.x86.R_SI; + case 5: + DECODE_PRINTF("[DI]"); + return M.x86.R_DI; + case 6: + offset = fetch_word_imm(); + DECODE_PRINTF2("[%04x]", offset); + return offset; + case 7: + DECODE_PRINTF("[BX]"); + return M.x86.R_BX; + } + } + HALT_SYS(); + return 0; } /**************************************************************************** PARAMETERS: -rm - RM value to decode +rm - RM value to decode RETURNS: Offset in memory for the address decoding @@ -752,45 +953,87 @@ REMARKS: Return the offset given by mod=01 addressing. Also enables the decoding of instructions. ****************************************************************************/ -unsigned decode_rm01_address(int rm) +unsigned decode_rm01_address( + int rm) { - int displacement = (s8) fetch_byte_imm(); - switch (rm) { - case 0: - DECODE_PRINTF2("%d[BX+SI]", displacement); - return M.x86.R_BX + M.x86.R_SI + displacement; - case 1: - DECODE_PRINTF2("%d[BX+DI]", displacement); - return M.x86.R_BX + M.x86.R_DI + displacement; - case 2: - DECODE_PRINTF2("%d[BP+SI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + M.x86.R_SI + displacement; - case 3: - DECODE_PRINTF2("%d[BP+DI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + M.x86.R_DI + displacement; - case 4: - DECODE_PRINTF2("%d[SI]", displacement); - return M.x86.R_SI + displacement; - case 5: - DECODE_PRINTF2("%d[DI]", displacement); - return M.x86.R_DI + displacement; - case 6: - DECODE_PRINTF2("%d[BP]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + displacement; - case 7: - DECODE_PRINTF2("%d[BX]", displacement); - return M.x86.R_BX + displacement; - } - HALT_SYS(); - return 0; /* SHOULD NOT HAPPEN */ + int displacement; + + if (M.x86.mode & SYSMODE_PREFIX_ADDR) { + /* 32-bit addressing */ + if (rm != 4) + displacement = (s8)fetch_byte_imm(); + else + displacement = 0; + + switch (rm) { + case 0: + DECODE_PRINTF2("%d[EAX]", displacement); + return M.x86.R_EAX + displacement; + case 1: + DECODE_PRINTF2("%d[ECX]", displacement); + return M.x86.R_ECX + displacement; + case 2: + DECODE_PRINTF2("%d[EDX]", displacement); + return M.x86.R_EDX + displacement; + case 3: + DECODE_PRINTF2("%d[EBX]", displacement); + return M.x86.R_EBX + displacement; + case 4: { + int offset = decode_sib_address(1); + displacement = (s8)fetch_byte_imm(); + DECODE_PRINTF2("[%d]", displacement); + return offset + displacement; + } + case 5: + DECODE_PRINTF2("%d[EBP]", displacement); + return M.x86.R_EBP + displacement; + case 6: + DECODE_PRINTF2("%d[ESI]", displacement); + return M.x86.R_ESI + displacement; + case 7: + DECODE_PRINTF2("%d[EDI]", displacement); + return M.x86.R_EDI + displacement; + } + } else { + /* 16-bit addressing */ + displacement = (s8)fetch_byte_imm(); + switch (rm) { + case 0: + DECODE_PRINTF2("%d[BX+SI]", displacement); + return (M.x86.R_BX + M.x86.R_SI + displacement) & 0xffff; + case 1: + DECODE_PRINTF2("%d[BX+DI]", displacement); + return (M.x86.R_BX + M.x86.R_DI + displacement) & 0xffff; + case 2: + DECODE_PRINTF2("%d[BP+SI]", displacement); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + M.x86.R_SI + displacement) & 0xffff; + case 3: + DECODE_PRINTF2("%d[BP+DI]", displacement); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + M.x86.R_DI + displacement) & 0xffff; + case 4: + DECODE_PRINTF2("%d[SI]", displacement); + return (M.x86.R_SI + displacement) & 0xffff; + case 5: + DECODE_PRINTF2("%d[DI]", displacement); + return (M.x86.R_DI + displacement) & 0xffff; + case 6: + DECODE_PRINTF2("%d[BP]", displacement); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + displacement) & 0xffff; + case 7: + DECODE_PRINTF2("%d[BX]", displacement); + return (M.x86.R_BX + displacement) & 0xffff; + } + } + HALT_SYS(); + return 0; /* SHOULD NOT HAPPEN */ } /**************************************************************************** PARAMETERS: -rm - RM value to decode +rm - RM value to decode RETURNS: Offset in memory for the address decoding @@ -799,39 +1042,107 @@ REMARKS: Return the offset given by mod=10 addressing. Also enables the decoding of instructions. ****************************************************************************/ -unsigned decode_rm10_address(int rm) +unsigned decode_rm10_address( + int rm) { - unsigned displacement = (u16) fetch_word_imm(); - switch (rm) { - case 0: - DECODE_PRINTF2("%04x[BX+SI]", displacement); - return M.x86.R_BX + M.x86.R_SI + displacement; - case 1: - DECODE_PRINTF2("%04x[BX+DI]", displacement); - return M.x86.R_BX + M.x86.R_DI + displacement; - case 2: - DECODE_PRINTF2("%04x[BP+SI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + M.x86.R_SI + displacement; - case 3: - DECODE_PRINTF2("%04x[BP+DI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + M.x86.R_DI + displacement; - case 4: - DECODE_PRINTF2("%04x[SI]", displacement); - return M.x86.R_SI + displacement; - case 5: - DECODE_PRINTF2("%04x[DI]", displacement); - return M.x86.R_DI + displacement; - case 6: - DECODE_PRINTF2("%04x[BP]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_BP + displacement; - case 7: - DECODE_PRINTF2("%04x[BX]", displacement); - return M.x86.R_BX + displacement; - } - HALT_SYS(); - return 0; - /*NOTREACHED */ + if (M.x86.mode & SYSMODE_PREFIX_ADDR) { + int displacement; + + /* 32-bit addressing */ + if (rm != 4) + displacement = (s32)fetch_long_imm(); + else + displacement = 0; + + switch (rm) { + case 0: + DECODE_PRINTF2("%d[EAX]", displacement); + return M.x86.R_EAX + displacement; + case 1: + DECODE_PRINTF2("%d[ECX]", displacement); + return M.x86.R_ECX + displacement; + case 2: + DECODE_PRINTF2("%d[EDX]", displacement); + return M.x86.R_EDX + displacement; + case 3: + DECODE_PRINTF2("%d[EBX]", displacement); + return M.x86.R_EBX + displacement; + case 4: { + int offset = decode_sib_address(2); + displacement = (s32)fetch_long_imm(); + DECODE_PRINTF2("[%d]", displacement); + return offset + displacement; + } + case 5: + DECODE_PRINTF2("%d[EBP]", displacement); + return M.x86.R_EBP + displacement; + case 6: + DECODE_PRINTF2("%d[ESI]", displacement); + return M.x86.R_ESI + displacement; + case 7: + DECODE_PRINTF2("%d[EDI]", displacement); + return M.x86.R_EDI + displacement; + } + } else { + int displacement = (s16)fetch_word_imm(); + + /* 16-bit addressing */ + switch (rm) { + case 0: + DECODE_PRINTF2("%d[BX+SI]", displacement); + return (M.x86.R_BX + M.x86.R_SI + displacement) & 0xffff; + case 1: + DECODE_PRINTF2("%d[BX+DI]", displacement); + return (M.x86.R_BX + M.x86.R_DI + displacement) & 0xffff; + case 2: + DECODE_PRINTF2("%d[BP+SI]", displacement); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + M.x86.R_SI + displacement) & 0xffff; + case 3: + DECODE_PRINTF2("%d[BP+DI]", displacement); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + M.x86.R_DI + displacement) & 0xffff; + case 4: + DECODE_PRINTF2("%d[SI]", displacement); + return (M.x86.R_SI + displacement) & 0xffff; + case 5: + DECODE_PRINTF2("%d[DI]", displacement); + return (M.x86.R_DI + displacement) & 0xffff; + case 6: + DECODE_PRINTF2("%d[BP]", displacement); + M.x86.mode |= SYSMODE_SEG_DS_SS; + return (M.x86.R_BP + displacement) & 0xffff; + case 7: + DECODE_PRINTF2("%d[BX]", displacement); + return (M.x86.R_BX + displacement) & 0xffff; + } + } + HALT_SYS(); + return 0; /* SHOULD NOT HAPPEN */ } + + +/**************************************************************************** +PARAMETERS: +mod - modifier +rm - RM value to decode + +RETURNS: +Offset in memory for the address decoding, multiplexing calls to +the decode_rmXX_address functions + +REMARKS: +Return the offset given by "mod" addressing. +****************************************************************************/ + +unsigned decode_rmXX_address(int mod, int rm) +{ + if(mod == 0) + return decode_rm00_address(rm); + if(mod == 1) + return decode_rm01_address(rm); + return decode_rm10_address(rm); +} + + + diff --git a/util/vgabios/x86emu/src/x86emu/fpu.c b/util/vgabios/x86emu/src/x86emu/fpu.c index 40e47aaed2..5da363d6d5 100644 --- a/util/vgabios/x86emu/src/x86emu/fpu.c +++ b/util/vgabios/x86emu/src/x86emu/fpu.c @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,8 +28,8 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: This file contains the code to implement the decoding and @@ -44,901 +44,902 @@ /* opcode=0xd8 */ void x86emuOp_esc_coprocess_d8(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("ESC D8\n"); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + START_OF_INSTR(); + DECODE_PRINTF("ESC D8\n"); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } #ifdef DEBUG static char *x86emu_fpu_op_d9_tab[] = { - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", + "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", + "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", + "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", + "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", + "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", + "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", }; static char *x86emu_fpu_op_d9_tab1[] = { - "FLD\t", "FLD\t", "FLD\t", "FLD\t", - "FLD\t", "FLD\t", "FLD\t", "FLD\t", + "FLD\t", "FLD\t", "FLD\t", "FLD\t", + "FLD\t", "FLD\t", "FLD\t", "FLD\t", - "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", - "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", + "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", + "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", - "FNOP", "ESC_D9", "ESC_D9", "ESC_D9", - "ESC_D9", "ESC_D9", "ESC_D9", "ESC_D9", + "FNOP", "ESC_D9", "ESC_D9", "ESC_D9", + "ESC_D9", "ESC_D9", "ESC_D9", "ESC_D9", - "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", - "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", + "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", + "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", - "FCHS", "FABS", "ESC_D9", "ESC_D9", - "FTST", "FXAM", "ESC_D9", "ESC_D9", + "FCHS", "FABS", "ESC_D9", "ESC_D9", + "FTST", "FXAM", "ESC_D9", "ESC_D9", - "FLD1", "FLDL2T", "FLDL2E", "FLDPI", - "FLDLG2", "FLDLN2", "FLDZ", "ESC_D9", + "FLD1", "FLDL2T", "FLDL2E", "FLDPI", + "FLDLG2", "FLDLN2", "FLDZ", "ESC_D9", - "F2XM1", "FYL2X", "FPTAN", "FPATAN", - "FXTRACT", "ESC_D9", "FDECSTP", "FINCSTP", + "F2XM1", "FYL2X", "FPTAN", "FPATAN", + "FXTRACT", "ESC_D9", "FDECSTP", "FINCSTP", - "FPREM", "FYL2XP1", "FSQRT", "ESC_D9", - "FRNDINT", "FSCALE", "ESC_D9", "ESC_D9", + "FPREM", "FYL2XP1", "FSQRT", "ESC_D9", + "FRNDINT", "FSCALE", "ESC_D9", "ESC_D9", }; -#endif /* DEBUG */ +#endif /* DEBUG */ /* opcode=0xd9 */ void x86emuOp_esc_coprocess_d9(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 stkelem; + int mod, rl, rh; + uint destoffset; + u8 stkelem; - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (mod != 3) { - DECODE_PRINTINSTR32(x86emu_fpu_op_d9_tab, mod, rh, rl); - } else { - DECODE_PRINTF(x86emu_fpu_op_d9_tab1[(rh << 3) + rl]); - } + if (mod != 3) { + DECODE_PRINTINSTR32(x86emu_fpu_op_d9_tab, mod, rh, rl); + } else { + DECODE_PRINTF(x86emu_fpu_op_d9_tab1[(rh << 3) + rl]); + } #endif - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8) rl; - if (rh < 4) { - DECODE_PRINTF2("ST(%d)\n", stkelem); - } else { - DECODE_PRINTF("\n"); - } - break; - } + switch (mod) { + case 0: + destoffset = decode_rm00_address(rl); + DECODE_PRINTF("\n"); + break; + case 1: + destoffset = decode_rm01_address(rl); + DECODE_PRINTF("\n"); + break; + case 2: + destoffset = decode_rm10_address(rl); + DECODE_PRINTF("\n"); + break; + case 3: /* register to register */ + stkelem = (u8)rl; + if (rh < 4) { + DECODE_PRINTF2("ST(%d)\n", stkelem); + } else { + DECODE_PRINTF("\n"); + } + break; + } #ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_fld(X86EMU_FPU_STKTOP, stkelem); - break; - case 1: - x86emu_fpu_R_fxch(X86EMU_FPU_STKTOP, stkelem); - break; - case 2: - switch (rl) { - case 0: - x86emu_fpu_R_nop(); - break; - default: - x86emu_fpu_illegal(); - break; - } - case 3: - x86emu_fpu_R_fstp(X86EMU_FPU_STKTOP, stkelem); - break; - case 4: - switch (rl) { - case 0: - x86emu_fpu_R_fchs(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fabs(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_ftst(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fxam(X86EMU_FPU_STKTOP); - break; - default: - /* 2,3,6,7 */ - x86emu_fpu_illegal(); - break; - } - break; - - case 5: - switch (rl) { - case 0: - x86emu_fpu_R_fld1(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fldl2t(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fldl2e(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fldpi(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fldlg2(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fldln2(X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fldz(X86EMU_FPU_STKTOP); - break; - default: - /* 7 */ - x86emu_fpu_illegal(); - break; - } - break; - - case 6: - switch (rl) { - case 0: - x86emu_fpu_R_f2xm1(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fyl2x(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fptan(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fpatan(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fxtract(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_illegal(); - break; - case 6: - x86emu_fpu_R_decstp(); - break; - case 7: - x86emu_fpu_R_incstp(); - break; - } - break; - - case 7: - switch (rl) { - case 0: - x86emu_fpu_R_fprem(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fyl2xp1(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fsqrt(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_illegal(); - break; - case 4: - x86emu_fpu_R_frndint(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fscale(X86EMU_FPU_STKTOP); - break; - case 6: - case 7: - default: - x86emu_fpu_illegal(); - break; - } - break; - - default: - switch (rh) { - case 0: - x86emu_fpu_M_fld(X86EMU_FPU_FLOAT, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fst(X86EMU_FPU_FLOAT, destoffset); - break; - case 3: - x86emu_fpu_M_fstp(X86EMU_FPU_FLOAT, destoffset); - break; - case 4: - x86emu_fpu_M_fldenv(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_M_fldcw(X86EMU_FPU_WORD, destoffset); - break; - case 6: - x86emu_fpu_M_fstenv(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fstcw(X86EMU_FPU_WORD, destoffset); - break; - } - } - } -#endif /* X86EMU_FPU_PRESENT */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + /* execute */ + switch (mod) { + case 3: + switch (rh) { + case 0: + x86emu_fpu_R_fld(X86EMU_FPU_STKTOP, stkelem); + break; + case 1: + x86emu_fpu_R_fxch(X86EMU_FPU_STKTOP, stkelem); + break; + case 2: + switch (rl) { + case 0: + x86emu_fpu_R_nop(); + break; + default: + x86emu_fpu_illegal(); + break; + } + case 3: + x86emu_fpu_R_fstp(X86EMU_FPU_STKTOP, stkelem); + break; + case 4: + switch (rl) { + case 0: + x86emu_fpu_R_fchs(X86EMU_FPU_STKTOP); + break; + case 1: + x86emu_fpu_R_fabs(X86EMU_FPU_STKTOP); + break; + case 4: + x86emu_fpu_R_ftst(X86EMU_FPU_STKTOP); + break; + case 5: + x86emu_fpu_R_fxam(X86EMU_FPU_STKTOP); + break; + default: + /* 2,3,6,7 */ + x86emu_fpu_illegal(); + break; + } + break; + + case 5: + switch (rl) { + case 0: + x86emu_fpu_R_fld1(X86EMU_FPU_STKTOP); + break; + case 1: + x86emu_fpu_R_fldl2t(X86EMU_FPU_STKTOP); + break; + case 2: + x86emu_fpu_R_fldl2e(X86EMU_FPU_STKTOP); + break; + case 3: + x86emu_fpu_R_fldpi(X86EMU_FPU_STKTOP); + break; + case 4: + x86emu_fpu_R_fldlg2(X86EMU_FPU_STKTOP); + break; + case 5: + x86emu_fpu_R_fldln2(X86EMU_FPU_STKTOP); + break; + case 6: + x86emu_fpu_R_fldz(X86EMU_FPU_STKTOP); + break; + default: + /* 7 */ + x86emu_fpu_illegal(); + break; + } + break; + + case 6: + switch (rl) { + case 0: + x86emu_fpu_R_f2xm1(X86EMU_FPU_STKTOP); + break; + case 1: + x86emu_fpu_R_fyl2x(X86EMU_FPU_STKTOP); + break; + case 2: + x86emu_fpu_R_fptan(X86EMU_FPU_STKTOP); + break; + case 3: + x86emu_fpu_R_fpatan(X86EMU_FPU_STKTOP); + break; + case 4: + x86emu_fpu_R_fxtract(X86EMU_FPU_STKTOP); + break; + case 5: + x86emu_fpu_illegal(); + break; + case 6: + x86emu_fpu_R_decstp(); + break; + case 7: + x86emu_fpu_R_incstp(); + break; + } + break; + + case 7: + switch (rl) { + case 0: + x86emu_fpu_R_fprem(X86EMU_FPU_STKTOP); + break; + case 1: + x86emu_fpu_R_fyl2xp1(X86EMU_FPU_STKTOP); + break; + case 2: + x86emu_fpu_R_fsqrt(X86EMU_FPU_STKTOP); + break; + case 3: + x86emu_fpu_illegal(); + break; + case 4: + x86emu_fpu_R_frndint(X86EMU_FPU_STKTOP); + break; + case 5: + x86emu_fpu_R_fscale(X86EMU_FPU_STKTOP); + break; + case 6: + case 7: + default: + x86emu_fpu_illegal(); + break; + } + break; + + default: + switch (rh) { + case 0: + x86emu_fpu_M_fld(X86EMU_FPU_FLOAT, destoffset); + break; + case 1: + x86emu_fpu_illegal(); + break; + case 2: + x86emu_fpu_M_fst(X86EMU_FPU_FLOAT, destoffset); + break; + case 3: + x86emu_fpu_M_fstp(X86EMU_FPU_FLOAT, destoffset); + break; + case 4: + x86emu_fpu_M_fldenv(X86EMU_FPU_WORD, destoffset); + break; + case 5: + x86emu_fpu_M_fldcw(X86EMU_FPU_WORD, destoffset); + break; + case 6: + x86emu_fpu_M_fstenv(X86EMU_FPU_WORD, destoffset); + break; + case 7: + x86emu_fpu_M_fstcw(X86EMU_FPU_WORD, destoffset); + break; + } + } + } +#endif /* X86EMU_FPU_PRESENT */ + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } #ifdef DEBUG char *x86emu_fpu_op_da_tab[] = { - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", - "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", + "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", + "FICOMP\tDWORD PTR ", + "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", + "FIDIVR\tDWORD PTR ", + + "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", + "FICOMP\tDWORD PTR ", + "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", + "FIDIVR\tDWORD PTR ", + + "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", + "FICOMP\tDWORD PTR ", + "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", + "FIDIVR\tDWORD PTR ", + + "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", + "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", }; -#endif /* DEBUG */ +#endif /* DEBUG */ /* opcode=0xda */ void x86emuOp_esc_coprocess_da(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_da_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8) rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } + int mod, rl, rh; + uint destoffset; + u8 stkelem; + + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + DECODE_PRINTINSTR32(x86emu_fpu_op_da_tab, mod, rh, rl); + switch (mod) { + case 0: + destoffset = decode_rm00_address(rl); + DECODE_PRINTF("\n"); + break; + case 1: + destoffset = decode_rm01_address(rl); + DECODE_PRINTF("\n"); + break; + case 2: + destoffset = decode_rm10_address(rl); + DECODE_PRINTF("\n"); + break; + case 3: /* register to register */ + stkelem = (u8)rl; + DECODE_PRINTF2("\tST(%d),ST\n", stkelem); + break; + } #ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - x86emu_fpu_illegal(); - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_iadd(X86EMU_FPU_SHORT, destoffset); - break; - case 1: - x86emu_fpu_M_imul(X86EMU_FPU_SHORT, destoffset); - break; - case 2: - x86emu_fpu_M_icom(X86EMU_FPU_SHORT, destoffset); - break; - case 3: - x86emu_fpu_M_icomp(X86EMU_FPU_SHORT, destoffset); - break; - case 4: - x86emu_fpu_M_isub(X86EMU_FPU_SHORT, destoffset); - break; - case 5: - x86emu_fpu_M_isubr(X86EMU_FPU_SHORT, destoffset); - break; - case 6: - x86emu_fpu_M_idiv(X86EMU_FPU_SHORT, destoffset); - break; - case 7: - x86emu_fpu_M_idivr(X86EMU_FPU_SHORT, destoffset); - break; - } - } + switch (mod) { + case 3: + x86emu_fpu_illegal(); + break; + default: + switch (rh) { + case 0: + x86emu_fpu_M_iadd(X86EMU_FPU_SHORT, destoffset); + break; + case 1: + x86emu_fpu_M_imul(X86EMU_FPU_SHORT, destoffset); + break; + case 2: + x86emu_fpu_M_icom(X86EMU_FPU_SHORT, destoffset); + break; + case 3: + x86emu_fpu_M_icomp(X86EMU_FPU_SHORT, destoffset); + break; + case 4: + x86emu_fpu_M_isub(X86EMU_FPU_SHORT, destoffset); + break; + case 5: + x86emu_fpu_M_isubr(X86EMU_FPU_SHORT, destoffset); + break; + case 6: + x86emu_fpu_M_idiv(X86EMU_FPU_SHORT, destoffset); + break; + case 7: + x86emu_fpu_M_idivr(X86EMU_FPU_SHORT, destoffset); + break; + } + } #endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } #ifdef DEBUG char *x86emu_fpu_op_db_tab[] = { - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", + "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", + "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", + "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", + "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", + "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", + "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", }; -#endif /* DEBUG */ +#endif /* DEBUG */ /* opcode=0xdb */ void x86emuOp_esc_coprocess_db(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; + int mod, rl, rh; + uint destoffset; - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (mod != 3) { - DECODE_PRINTINSTR32(x86emu_fpu_op_db_tab, mod, rh, rl); - } else if (rh == 4) { /* === 11 10 0 nnn */ - switch (rl) { - case 0: - DECODE_PRINTF("FENI\n"); - break; - case 1: - DECODE_PRINTF("FDISI\n"); - break; - case 2: - DECODE_PRINTF("FCLEX\n"); - break; - case 3: - DECODE_PRINTF("FINIT\n"); - break; - } - } else { - DECODE_PRINTF2("ESC_DB %0x\n", (mod << 6) + (rh << 3) + (rl)); - } -#endif /* DEBUG */ - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - break; - case 1: - destoffset = decode_rm01_address(rl); - break; - case 2: - destoffset = decode_rm10_address(rl); - break; - case 3: /* register to register */ - break; - } + if (mod != 3) { + DECODE_PRINTINSTR32(x86emu_fpu_op_db_tab, mod, rh, rl); + } else if (rh == 4) { /* === 11 10 0 nnn */ + switch (rl) { + case 0: + DECODE_PRINTF("FENI\n"); + break; + case 1: + DECODE_PRINTF("FDISI\n"); + break; + case 2: + DECODE_PRINTF("FCLEX\n"); + break; + case 3: + DECODE_PRINTF("FINIT\n"); + break; + } + } else { + DECODE_PRINTF2("ESC_DB %0x\n", (mod << 6) + (rh << 3) + (rl)); + } +#endif /* DEBUG */ + switch (mod) { + case 0: + destoffset = decode_rm00_address(rl); + break; + case 1: + destoffset = decode_rm01_address(rl); + break; + case 2: + destoffset = decode_rm10_address(rl); + break; + case 3: /* register to register */ + break; + } #ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 4: - switch (rl) { - case 0: - x86emu_fpu_R_feni(); - break; - case 1: - x86emu_fpu_R_fdisi(); - break; - case 2: - x86emu_fpu_R_fclex(); - break; - case 3: - x86emu_fpu_R_finit(); - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fild(X86EMU_FPU_SHORT, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fist(X86EMU_FPU_SHORT, destoffset); - break; - case 3: - x86emu_fpu_M_fistp(X86EMU_FPU_SHORT, destoffset); - break; - case 4: - x86emu_fpu_illegal(); - break; - case 5: - x86emu_fpu_M_fld(X86EMU_FPU_LDBL, destoffset); - break; - case 6: - x86emu_fpu_illegal(); - break; - case 7: - x86emu_fpu_M_fstp(X86EMU_FPU_LDBL, destoffset); - break; - } - } + /* execute */ + switch (mod) { + case 3: + switch (rh) { + case 4: + switch (rl) { + case 0: + x86emu_fpu_R_feni(); + break; + case 1: + x86emu_fpu_R_fdisi(); + break; + case 2: + x86emu_fpu_R_fclex(); + break; + case 3: + x86emu_fpu_R_finit(); + break; + default: + x86emu_fpu_illegal(); + break; + } + break; + default: + x86emu_fpu_illegal(); + break; + } + break; + default: + switch (rh) { + case 0: + x86emu_fpu_M_fild(X86EMU_FPU_SHORT, destoffset); + break; + case 1: + x86emu_fpu_illegal(); + break; + case 2: + x86emu_fpu_M_fist(X86EMU_FPU_SHORT, destoffset); + break; + case 3: + x86emu_fpu_M_fistp(X86EMU_FPU_SHORT, destoffset); + break; + case 4: + x86emu_fpu_illegal(); + break; + case 5: + x86emu_fpu_M_fld(X86EMU_FPU_LDBL, destoffset); + break; + case 6: + x86emu_fpu_illegal(); + break; + case 7: + x86emu_fpu_M_fstp(X86EMU_FPU_LDBL, destoffset); + break; + } + } #endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } #ifdef DEBUG char *x86emu_fpu_op_dc_tab[] = { - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\t", "FMUL\t", "FCOM\t", "FCOMP\t", - "FSUBR\t", "FSUB\t", "FDIVR\t", "FDIV\t", + "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", + "FCOMP\tQWORD PTR ", + "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", + "FDIVR\tQWORD PTR ", + + "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", + "FCOMP\tQWORD PTR ", + "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", + "FDIVR\tQWORD PTR ", + + "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", + "FCOMP\tQWORD PTR ", + "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", + "FDIVR\tQWORD PTR ", + + "FADD\t", "FMUL\t", "FCOM\t", "FCOMP\t", + "FSUBR\t", "FSUB\t", "FDIVR\t", "FDIV\t", }; -#endif /* DEBUG */ +#endif /* DEBUG */ /* opcode=0xdc */ void x86emuOp_esc_coprocess_dc(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_dc_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8) rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } + int mod, rl, rh; + uint destoffset; + u8 stkelem; + + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + DECODE_PRINTINSTR32(x86emu_fpu_op_dc_tab, mod, rh, rl); + switch (mod) { + case 0: + destoffset = decode_rm00_address(rl); + DECODE_PRINTF("\n"); + break; + case 1: + destoffset = decode_rm01_address(rl); + DECODE_PRINTF("\n"); + break; + case 2: + destoffset = decode_rm10_address(rl); + DECODE_PRINTF("\n"); + break; + case 3: /* register to register */ + stkelem = (u8)rl; + DECODE_PRINTF2("\tST(%d),ST\n", stkelem); + break; + } #ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_fadd(stkelem, X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fmul(stkelem, X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fcom(stkelem, X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fsubr(stkelem, X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fsub(stkelem, X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fdivr(stkelem, X86EMU_FPU_STKTOP); - break; - case 7: - x86emu_fpu_R_fdiv(stkelem, X86EMU_FPU_STKTOP); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fadd(X86EMU_FPU_DOUBLE, destoffset); - break; - case 1: - x86emu_fpu_M_fmul(X86EMU_FPU_DOUBLE, destoffset); - break; - case 2: - x86emu_fpu_M_fcom(X86EMU_FPU_DOUBLE, destoffset); - break; - case 3: - x86emu_fpu_M_fcomp(X86EMU_FPU_DOUBLE, destoffset); - break; - case 4: - x86emu_fpu_M_fsub(X86EMU_FPU_DOUBLE, destoffset); - break; - case 5: - x86emu_fpu_M_fsubr(X86EMU_FPU_DOUBLE, destoffset); - break; - case 6: - x86emu_fpu_M_fdiv(X86EMU_FPU_DOUBLE, destoffset); - break; - case 7: - x86emu_fpu_M_fdivr(X86EMU_FPU_DOUBLE, destoffset); - break; - } - } + /* execute */ + switch (mod) { + case 3: + switch (rh) { + case 0: + x86emu_fpu_R_fadd(stkelem, X86EMU_FPU_STKTOP); + break; + case 1: + x86emu_fpu_R_fmul(stkelem, X86EMU_FPU_STKTOP); + break; + case 2: + x86emu_fpu_R_fcom(stkelem, X86EMU_FPU_STKTOP); + break; + case 3: + x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); + break; + case 4: + x86emu_fpu_R_fsubr(stkelem, X86EMU_FPU_STKTOP); + break; + case 5: + x86emu_fpu_R_fsub(stkelem, X86EMU_FPU_STKTOP); + break; + case 6: + x86emu_fpu_R_fdivr(stkelem, X86EMU_FPU_STKTOP); + break; + case 7: + x86emu_fpu_R_fdiv(stkelem, X86EMU_FPU_STKTOP); + break; + } + break; + default: + switch (rh) { + case 0: + x86emu_fpu_M_fadd(X86EMU_FPU_DOUBLE, destoffset); + break; + case 1: + x86emu_fpu_M_fmul(X86EMU_FPU_DOUBLE, destoffset); + break; + case 2: + x86emu_fpu_M_fcom(X86EMU_FPU_DOUBLE, destoffset); + break; + case 3: + x86emu_fpu_M_fcomp(X86EMU_FPU_DOUBLE, destoffset); + break; + case 4: + x86emu_fpu_M_fsub(X86EMU_FPU_DOUBLE, destoffset); + break; + case 5: + x86emu_fpu_M_fsubr(X86EMU_FPU_DOUBLE, destoffset); + break; + case 6: + x86emu_fpu_M_fdiv(X86EMU_FPU_DOUBLE, destoffset); + break; + case 7: + x86emu_fpu_M_fdivr(X86EMU_FPU_DOUBLE, destoffset); + break; + } + } #endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } #ifdef DEBUG static char *x86emu_fpu_op_dd_tab[] = { - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", + "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", + "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", + "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", + "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", + "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", + "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", - "ESC_DD\t2C,", "ESC_DD\t2D,", "ESC_DD\t2E,", "ESC_DD\t2F,", + "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", + "ESC_DD\t2C,", "ESC_DD\t2D,", "ESC_DD\t2E,", "ESC_DD\t2F,", }; -#endif /* DEBUG */ +#endif /* DEBUG */ /* opcode=0xdd */ void x86emuOp_esc_coprocess_dd(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_dd_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8) rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } + int mod, rl, rh; + uint destoffset; + u8 stkelem; + + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + DECODE_PRINTINSTR32(x86emu_fpu_op_dd_tab, mod, rh, rl); + switch (mod) { + case 0: + destoffset = decode_rm00_address(rl); + DECODE_PRINTF("\n"); + break; + case 1: + destoffset = decode_rm01_address(rl); + DECODE_PRINTF("\n"); + break; + case 2: + destoffset = decode_rm10_address(rl); + DECODE_PRINTF("\n"); + break; + case 3: /* register to register */ + stkelem = (u8)rl; + DECODE_PRINTF2("\tST(%d),ST\n", stkelem); + break; + } #ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_ffree(stkelem); - break; - case 1: - x86emu_fpu_R_fxch(stkelem); - break; - case 2: - x86emu_fpu_R_fst(stkelem); /* register version */ - break; - case 3: - x86emu_fpu_R_fstp(stkelem); /* register version */ - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fld(X86EMU_FPU_DOUBLE, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fst(X86EMU_FPU_DOUBLE, destoffset); - break; - case 3: - x86emu_fpu_M_fstp(X86EMU_FPU_DOUBLE, destoffset); - break; - case 4: - x86emu_fpu_M_frstor(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_illegal(); - break; - case 6: - x86emu_fpu_M_fsave(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fstsw(X86EMU_FPU_WORD, destoffset); - break; - } - } + switch (mod) { + case 3: + switch (rh) { + case 0: + x86emu_fpu_R_ffree(stkelem); + break; + case 1: + x86emu_fpu_R_fxch(stkelem); + break; + case 2: + x86emu_fpu_R_fst(stkelem); /* register version */ + break; + case 3: + x86emu_fpu_R_fstp(stkelem); /* register version */ + break; + default: + x86emu_fpu_illegal(); + break; + } + break; + default: + switch (rh) { + case 0: + x86emu_fpu_M_fld(X86EMU_FPU_DOUBLE, destoffset); + break; + case 1: + x86emu_fpu_illegal(); + break; + case 2: + x86emu_fpu_M_fst(X86EMU_FPU_DOUBLE, destoffset); + break; + case 3: + x86emu_fpu_M_fstp(X86EMU_FPU_DOUBLE, destoffset); + break; + case 4: + x86emu_fpu_M_frstor(X86EMU_FPU_WORD, destoffset); + break; + case 5: + x86emu_fpu_illegal(); + break; + case 6: + x86emu_fpu_M_fsave(X86EMU_FPU_WORD, destoffset); + break; + case 7: + x86emu_fpu_M_fstsw(X86EMU_FPU_WORD, destoffset); + break; + } + } #endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } #ifdef DEBUG -static char *x86emu_fpu_op_de_tab[] = { - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FADDP\t", "FMULP\t", "FCOMP\t", "FCOMPP\t", - "FSUBRP\t", "FSUBP\t", "FDIVRP\t", "FDIVP\t", +static char *x86emu_fpu_op_de_tab[] = +{ + "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", + "FICOMP\tWORD PTR ", + "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", + "FIDIVR\tWORD PTR ", + + "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", + "FICOMP\tWORD PTR ", + "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", + "FIDIVR\tWORD PTR ", + + "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", + "FICOMP\tWORD PTR ", + "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", + "FIDIVR\tWORD PTR ", + + "FADDP\t", "FMULP\t", "FCOMP\t", "FCOMPP\t", + "FSUBRP\t", "FSUBP\t", "FDIVRP\t", "FDIVP\t", }; -#endif /* DEBUG */ +#endif /* DEBUG */ /* opcode=0xde */ void x86emuOp_esc_coprocess_de(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_de_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8) rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } + int mod, rl, rh; + uint destoffset; + u8 stkelem; + + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + DECODE_PRINTINSTR32(x86emu_fpu_op_de_tab, mod, rh, rl); + switch (mod) { + case 0: + destoffset = decode_rm00_address(rl); + DECODE_PRINTF("\n"); + break; + case 1: + destoffset = decode_rm01_address(rl); + DECODE_PRINTF("\n"); + break; + case 2: + destoffset = decode_rm10_address(rl); + DECODE_PRINTF("\n"); + break; + case 3: /* register to register */ + stkelem = (u8)rl; + DECODE_PRINTF2("\tST(%d),ST\n", stkelem); + break; + } #ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_faddp(stkelem, X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fmulp(stkelem, X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); - break; - case 3: - if (stkelem == 1) - x86emu_fpu_R_fcompp(stkelem, X86EMU_FPU_STKTOP); - else - x86emu_fpu_illegal(); - break; - case 4: - x86emu_fpu_R_fsubrp(stkelem, X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fsubp(stkelem, X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fdivrp(stkelem, X86EMU_FPU_STKTOP); - break; - case 7: - x86emu_fpu_R_fdivp(stkelem, X86EMU_FPU_STKTOP); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fiadd(X86EMU_FPU_WORD, destoffset); - break; - case 1: - x86emu_fpu_M_fimul(X86EMU_FPU_WORD, destoffset); - break; - case 2: - x86emu_fpu_M_ficom(X86EMU_FPU_WORD, destoffset); - break; - case 3: - x86emu_fpu_M_ficomp(X86EMU_FPU_WORD, destoffset); - break; - case 4: - x86emu_fpu_M_fisub(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_M_fisubr(X86EMU_FPU_WORD, destoffset); - break; - case 6: - x86emu_fpu_M_fidiv(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fidivr(X86EMU_FPU_WORD, destoffset); - break; - } - } + switch (mod) { + case 3: + switch (rh) { + case 0: + x86emu_fpu_R_faddp(stkelem, X86EMU_FPU_STKTOP); + break; + case 1: + x86emu_fpu_R_fmulp(stkelem, X86EMU_FPU_STKTOP); + break; + case 2: + x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); + break; + case 3: + if (stkelem == 1) + x86emu_fpu_R_fcompp(stkelem, X86EMU_FPU_STKTOP); + else + x86emu_fpu_illegal(); + break; + case 4: + x86emu_fpu_R_fsubrp(stkelem, X86EMU_FPU_STKTOP); + break; + case 5: + x86emu_fpu_R_fsubp(stkelem, X86EMU_FPU_STKTOP); + break; + case 6: + x86emu_fpu_R_fdivrp(stkelem, X86EMU_FPU_STKTOP); + break; + case 7: + x86emu_fpu_R_fdivp(stkelem, X86EMU_FPU_STKTOP); + break; + } + break; + default: + switch (rh) { + case 0: + x86emu_fpu_M_fiadd(X86EMU_FPU_WORD, destoffset); + break; + case 1: + x86emu_fpu_M_fimul(X86EMU_FPU_WORD, destoffset); + break; + case 2: + x86emu_fpu_M_ficom(X86EMU_FPU_WORD, destoffset); + break; + case 3: + x86emu_fpu_M_ficomp(X86EMU_FPU_WORD, destoffset); + break; + case 4: + x86emu_fpu_M_fisub(X86EMU_FPU_WORD, destoffset); + break; + case 5: + x86emu_fpu_M_fisubr(X86EMU_FPU_WORD, destoffset); + break; + case 6: + x86emu_fpu_M_fidiv(X86EMU_FPU_WORD, destoffset); + break; + case 7: + x86emu_fpu_M_fidivr(X86EMU_FPU_WORD, destoffset); + break; + } + } #endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } #ifdef DEBUG static char *x86emu_fpu_op_df_tab[] = { - /* mod == 00 */ - "FILD\tWORD PTR ", "ESC_DF\t39\n", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 01 */ - "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 10 */ - "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 11 */ - "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", - "ESC_DF\t3C,", "ESC_DF\t3D,", "ESC_DF\t3E,", "ESC_DF\t3F," + /* mod == 00 */ + "FILD\tWORD PTR ", "ESC_DF\t39\n", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", + "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", + "FISTP\tQWORD PTR ", + + /* mod == 01 */ + "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", + "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", + "FISTP\tQWORD PTR ", + + /* mod == 10 */ + "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", + "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", + "FISTP\tQWORD PTR ", + + /* mod == 11 */ + "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", + "ESC_DF\t3C,", "ESC_DF\t3D,", "ESC_DF\t3E,", "ESC_DF\t3F," }; -#endif /* DEBUG */ +#endif /* DEBUG */ /* opcode=0xdf */ void x86emuOp_esc_coprocess_df(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_df_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8) rl; - DECODE_PRINTF2("\tST(%d)\n", stkelem); - break; - } + int mod, rl, rh; + uint destoffset; + u8 stkelem; + + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + DECODE_PRINTINSTR32(x86emu_fpu_op_df_tab, mod, rh, rl); + switch (mod) { + case 0: + destoffset = decode_rm00_address(rl); + DECODE_PRINTF("\n"); + break; + case 1: + destoffset = decode_rm01_address(rl); + DECODE_PRINTF("\n"); + break; + case 2: + destoffset = decode_rm10_address(rl); + DECODE_PRINTF("\n"); + break; + case 3: /* register to register */ + stkelem = (u8)rl; + DECODE_PRINTF2("\tST(%d)\n", stkelem); + break; + } #ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_ffree(stkelem); - break; - case 1: - x86emu_fpu_R_fxch(stkelem); - break; - case 2: - x86emu_fpu_R_fst(stkelem); /* register version */ - break; - case 3: - x86emu_fpu_R_fstp(stkelem); /* register version */ - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fild(X86EMU_FPU_WORD, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fist(X86EMU_FPU_WORD, destoffset); - break; - case 3: - x86emu_fpu_M_fistp(X86EMU_FPU_WORD, destoffset); - break; - case 4: - x86emu_fpu_M_fbld(X86EMU_FPU_BSD, destoffset); - break; - case 5: - x86emu_fpu_M_fild(X86EMU_FPU_LONG, destoffset); - break; - case 6: - x86emu_fpu_M_fbstp(X86EMU_FPU_BSD, destoffset); - break; - case 7: - x86emu_fpu_M_fistp(X86EMU_FPU_LONG, destoffset); - break; - } - } + switch (mod) { + case 3: + switch (rh) { + case 0: + x86emu_fpu_R_ffree(stkelem); + break; + case 1: + x86emu_fpu_R_fxch(stkelem); + break; + case 2: + x86emu_fpu_R_fst(stkelem); /* register version */ + break; + case 3: + x86emu_fpu_R_fstp(stkelem); /* register version */ + break; + default: + x86emu_fpu_illegal(); + break; + } + break; + default: + switch (rh) { + case 0: + x86emu_fpu_M_fild(X86EMU_FPU_WORD, destoffset); + break; + case 1: + x86emu_fpu_illegal(); + break; + case 2: + x86emu_fpu_M_fist(X86EMU_FPU_WORD, destoffset); + break; + case 3: + x86emu_fpu_M_fistp(X86EMU_FPU_WORD, destoffset); + break; + case 4: + x86emu_fpu_M_fbld(X86EMU_FPU_BSD, destoffset); + break; + case 5: + x86emu_fpu_M_fild(X86EMU_FPU_LONG, destoffset); + break; + case 6: + x86emu_fpu_M_fbstp(X86EMU_FPU_BSD, destoffset); + break; + case 7: + x86emu_fpu_M_fistp(X86EMU_FPU_LONG, destoffset); + break; + } + } #endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR_NO_TRACE(); } diff --git a/util/vgabios/x86emu/src/x86emu/makefile b/util/vgabios/x86emu/src/x86emu/makefile index 8ce2e9e848..3fbc363b34 100644 --- a/util/vgabios/x86emu/src/x86emu/makefile +++ b/util/vgabios/x86emu/src/x86emu/makefile @@ -2,7 +2,7 @@ # # Realmode X86 Emulator Library # -# Copyright (C) 1996-1999 SciTech Software, Inc. +# Copyright (C) 1991-2004 SciTech Software, Inc. # # ======================================================================== # diff --git a/util/vgabios/x86emu/src/x86emu/makefile.linux b/util/vgabios/x86emu/src/x86emu/makefile.linux index 313526a5dc..39d6b5031a 100644 --- a/util/vgabios/x86emu/src/x86emu/makefile.linux +++ b/util/vgabios/x86emu/src/x86emu/makefile.linux @@ -31,9 +31,9 @@ ############################################################################# TARGETLIB = libx86emu.a +TARGETDEBUGLIB =libx86emud.a OBJS=\ -debug.o \ decode.o \ fpu.o \ ops.o \ @@ -41,20 +41,40 @@ ops2.o \ prim_ops.o \ sys.o +DEBUGOBJS=debug.d \ + decode.d \ + fpu.d \ + ops.d \ + ops2.d \ + prim_ops.d \ + sys.d + +.SUFFIXES: .d + +all: $(TARGETLIB) $(TARGETDEBUGLIB) + $(TARGETLIB): $(OBJS) ar rv $(TARGETLIB) $(OBJS) -INCS = -I. -Ix86emu -I../../include -CFLAGS = -D__DRIVER__ -DFORCE_POST -D_CEXPORT= -DNO_LONG_LONG -DDEBUG +$(TARGETDEBUGLIB): $(DEBUGOBJS) + ar rv $(TARGETDEBUGLIB) $(DEBUGOBJS) + +INCS = -I. -I../../include -I../../include/x86emu +#CFLAGS = -D__DRIVER__ -DFORCE_POST -D_CEXPORT= -DNO_LONG_LONG +CFLAGS = -D__DRIVER__ -DFORCE_POST +CDEBUGFLAGS = -DDEBUG .c.o: - gcc -g -O -Wall -c $(CFLAGS) $(INCS) $*.c + gcc -g -Os -Wall -c $(CFLAGS) $(INCS) $*.c + +.c.d: + gcc -g -O -Wall -c -o$*.d $(CFLAGS) $(CDEBUGFLAGS) $(INCS) $*.c .cpp.o: gcc -c $(CFLAGS) $(INCS) $*.cpp clean: - rm -f *.a *.o + rm -f *.a *.o *.d -validate: validate.o libx86emu.a - gcc -o validate validate.o -lx86emu -L. +validate: validate.c libx86emu.a x86emu/prim_asm.h + gcc $(CFLAGS) $(INCS) -Wall -O2 -o validate validate.c -lx86emu -L. diff --git a/util/vgabios/x86emu/src/x86emu/ops.c b/util/vgabios/x86emu/src/x86emu/ops.c index 92dbd66833..1b702500a4 100644 --- a/util/vgabios/x86emu/src/x86emu/ops.c +++ b/util/vgabios/x86emu/src/x86emu/ops.c @@ -2,7 +2,7 @@ * * Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. +* Copyright (C) 1991-2004 SciTech Software, Inc. * Copyright (C) David Mosberger-Tang * Copyright (C) 1999 Egbert Eich * @@ -70,12 +70,100 @@ * ****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/ops.c,v 1.6 2001/01/06 20:19:03 tsi Exp $ */ - #include "x86emu/x86emui.h" /*----------------------------- Implementation ----------------------------*/ +/* constant arrays to do several instructions in just one function */ + +#ifdef DEBUG +static char *x86emu_GenOpName[8] = { + "ADD", "OR", "ADC", "SBB", "AND", "SUB", "XOR", "CMP"}; +#endif + +/* used by several opcodes */ +static u8 (*genop_byte_operation[])(u8 d, u8 s) = +{ + add_byte, /* 00 */ + or_byte, /* 01 */ + adc_byte, /* 02 */ + sbb_byte, /* 03 */ + and_byte, /* 04 */ + sub_byte, /* 05 */ + xor_byte, /* 06 */ + cmp_byte, /* 07 */ +}; + +static u16 (*genop_word_operation[])(u16 d, u16 s) = +{ + add_word, /*00 */ + or_word, /*01 */ + adc_word, /*02 */ + sbb_word, /*03 */ + and_word, /*04 */ + sub_word, /*05 */ + xor_word, /*06 */ + cmp_word, /*07 */ +}; + +static u32 (*genop_long_operation[])(u32 d, u32 s) = +{ + add_long, /*00 */ + or_long, /*01 */ + adc_long, /*02 */ + sbb_long, /*03 */ + and_long, /*04 */ + sub_long, /*05 */ + xor_long, /*06 */ + cmp_long, /*07 */ +}; + +/* used by opcodes 80, c0, d0, and d2. */ +static u8(*opcD0_byte_operation[])(u8 d, u8 s) = +{ + rol_byte, + ror_byte, + rcl_byte, + rcr_byte, + shl_byte, + shr_byte, + shl_byte, /* sal_byte === shl_byte by definition */ + sar_byte, +}; + +/* used by opcodes c1, d1, and d3. */ +static u16(*opcD1_word_operation[])(u16 s, u8 d) = +{ + rol_word, + ror_word, + rcl_word, + rcr_word, + shl_word, + shr_word, + shl_word, /* sal_byte === shl_byte by definition */ + sar_word, +}; + +/* used by opcodes c1, d1, and d3. */ +static u32 (*opcD1_long_operation[])(u32 s, u8 d) = +{ + rol_long, + ror_long, + rcl_long, + rcr_long, + shl_long, + shr_long, + shl_long, /* sal_byte === shl_byte by definition */ + sar_long, +}; + +#ifdef DEBUG + +static char *opF6_names[8] = + { "TEST\t", "", "NOT\t", "NEG\t", "MUL\t", "IMUL\t", "DIV\t", "IDIV\t" }; + +#endif + /**************************************************************************** PARAMETERS: op1 - Instruction op code @@ -83,406 +171,278 @@ op1 - Instruction op code REMARKS: Handles illegal opcodes. ****************************************************************************/ -void x86emuOp_illegal_op(u8 op1) -{ - START_OF_INSTR(); - DECODE_PRINTF("ILLEGAL X86 OPCODE\n"); - TRACE_REGS(); - printk("%04x:%04x: %02X ILLEGAL X86 OPCODE!\n", M.x86.R_CS, M.x86.R_IP - 1, op1); - HALT_SYS(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x00 -****************************************************************************/ -void x86emuOp_add_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 *destreg, *srcreg; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x01 -****************************************************************************/ -void x86emuOp_add_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x02 -****************************************************************************/ -void x86emuOp_add_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x03 -****************************************************************************/ -void x86emuOp_add_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x04 -****************************************************************************/ -void x86emuOp_add_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = add_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x05 +void x86emuOp_illegal_op( + u8 op1) +{ + START_OF_INSTR(); + if (M.x86.R_SP != 0) { + DECODE_PRINTF("ILLEGAL X86 OPCODE\n"); + TRACE_REGS(); + DB( printk("%04x:%04x: %02X ILLEGAL X86 OPCODE!\n", + M.x86.R_CS, M.x86.R_IP-1,op1)); + HALT_SYS(); + } + else { + /* If we get here, it means the stack pointer is back to zero + * so we are just returning from an emulator service call + * so therte is no need to display an error message. We trap + * the emulator with an 0xF1 opcode to finish the service + * call. + */ + X86EMU_halt_sys(); + } + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcodes 0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38 +****************************************************************************/ +void x86emuOp_genop_byte_RM_R(u8 op1) +{ + int mod, rl, rh; + uint destoffset; + u8 *destreg, *srcreg; + u8 destval; + + op1 = (op1 >> 3) & 0x7; + + START_OF_INSTR(); + DECODE_PRINTF(x86emu_GenOpName[op1]); + DECODE_PRINTF("\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if(mod<3) + { destoffset = decode_rmXX_address(mod,rl); + DECODE_PRINTF(","); + destval = fetch_data_byte(destoffset); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = genop_byte_operation[op1](destval, *srcreg); + store_data_byte(destoffset, destval); + } + else + { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = genop_byte_operation[op1](*destreg, *srcreg); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcodes 0x01, 0x09, 0x11, 0x19, 0x21, 0x29, 0x31, 0x39 +****************************************************************************/ +void x86emuOp_genop_word_RM_R(u8 op1) +{ + int mod, rl, rh; + uint destoffset; + + op1 = (op1 >> 3) & 0x7; + + START_OF_INSTR(); + DECODE_PRINTF(x86emu_GenOpName[op1]); + DECODE_PRINTF("\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + + if(mod<3) { + destoffset = decode_rmXX_address(mod,rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + u32 *srcreg; + + DECODE_PRINTF(","); + destval = fetch_data_long(destoffset); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = genop_long_operation[op1](destval, *srcreg); + store_data_long(destoffset, destval); + } else { + u16 destval; + u16 *srcreg; + + DECODE_PRINTF(","); + destval = fetch_data_word(destoffset); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = genop_word_operation[op1](destval, *srcreg); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*srcreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = genop_long_operation[op1](*destreg, *srcreg); + } else { + u16 *destreg,*srcreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = genop_word_operation[op1](*destreg, *srcreg); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcodes 0x02, 0x0a, 0x12, 0x1a, 0x22, 0x2a, 0x32, 0x3a +****************************************************************************/ +void x86emuOp_genop_byte_R_RM(u8 op1) +{ + int mod, rl, rh; + u8 *destreg, *srcreg; + uint srcoffset; + u8 srcval; + + op1 = (op1 >> 3) & 0x7; + + START_OF_INSTR(); + DECODE_PRINTF(x86emu_GenOpName[op1]); + DECODE_PRINTF("\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod,rl); + srcval = fetch_data_byte(srcoffset); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rl); + srcval = *srcreg; + } + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = genop_byte_operation[op1](*destreg, srcval); + + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcodes 0x03, 0x0b, 0x13, 0x1b, 0x23, 0x2b, 0x33, 0x3b +****************************************************************************/ +void x86emuOp_genop_word_R_RM(u8 op1) +{ + int mod, rl, rh; + uint srcoffset; + u32 *destreg32, srcval; + u16 *destreg; + + op1 = (op1 >> 3) & 0x7; + + START_OF_INSTR(); + DECODE_PRINTF(x86emu_GenOpName[op1]); + DECODE_PRINTF("\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod,rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + destreg32 = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcval = fetch_data_long(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg32 = genop_long_operation[op1](*destreg32, srcval); + } else { + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcval = fetch_data_word(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = genop_word_operation[op1](*destreg, srcval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg; + destreg32 = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg32 = genop_long_operation[op1](*destreg32, *srcreg); + } else { + u16 *srcreg; + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = genop_word_operation[op1](*destreg, *srcreg); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcodes 0x04, 0x0c, 0x14, 0x1c, 0x24, 0x2c, 0x34, 0x3c ****************************************************************************/ -void x86emuOp_add_word_AX_IMM(u8 X86EMU_UNUSED(op1)) +void x86emuOp_genop_byte_AL_IMM(u8 op1) { - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("ADD\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("ADD\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = add_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = add_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + u8 srcval; + + op1 = (op1 >> 3) & 0x7; + + START_OF_INSTR(); + DECODE_PRINTF(x86emu_GenOpName[op1]); + DECODE_PRINTF("\tAL,"); + srcval = fetch_byte_imm(); + DECODE_PRINTF2("%x\n", srcval); + TRACE_AND_STEP(); + M.x86.R_AL = genop_byte_operation[op1](M.x86.R_AL, srcval); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcodes 0x05, 0x0d, 0x15, 0x1d, 0x25, 0x2d, 0x35, 0x3d +****************************************************************************/ +void x86emuOp_genop_word_AX_IMM(u8 op1) +{ + u32 srcval; + + op1 = (op1 >> 3) & 0x7; + + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF(x86emu_GenOpName[op1]); + DECODE_PRINTF("\tEAX,"); + srcval = fetch_long_imm(); + } else { + DECODE_PRINTF(x86emu_GenOpName[op1]); + DECODE_PRINTF("\tAX,"); + srcval = fetch_word_imm(); + } + DECODE_PRINTF2("%x\n", srcval); + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_EAX = genop_long_operation[op1](M.x86.R_EAX, srcval); + } else { + M.x86.R_AX = genop_word_operation[op1](M.x86.R_AX, (u16)srcval); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -491,12 +451,12 @@ Handles opcode 0x06 ****************************************************************************/ void x86emuOp_push_ES(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tES\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_ES); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("PUSH\tES\n"); + TRACE_AND_STEP(); + push_word(M.x86.R_ES); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -505,404 +465,12 @@ Handles opcode 0x07 ****************************************************************************/ void x86emuOp_pop_ES(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("POP\tES\n"); - TRACE_AND_STEP(); - M.x86.R_ES = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x08 -****************************************************************************/ -void x86emuOp_or_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x09 -****************************************************************************/ -void x86emuOp_or_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0a -****************************************************************************/ -void x86emuOp_or_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0b -****************************************************************************/ -void x86emuOp_or_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0c -****************************************************************************/ -void x86emuOp_or_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("OR\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = or_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0d -****************************************************************************/ -void x86emuOp_or_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("OR\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("OR\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = or_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = or_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("POP\tES\n"); + TRACE_AND_STEP(); + M.x86.R_ES = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -911,12 +479,12 @@ Handles opcode 0x0e ****************************************************************************/ void x86emuOp_push_CS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tCS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("PUSH\tCS\n"); + TRACE_AND_STEP(); + push_word(M.x86.R_CS); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -925,401 +493,9 @@ Handles opcode 0x0f. Escape for two-byte opcode (286 or better) ****************************************************************************/ void x86emuOp_two_byte(u8 X86EMU_UNUSED(op1)) { - u8 op2 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++)); - INC_DECODED_INST_LEN(1); - (*x86emu_optab2[op2]) (op2); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x10 -****************************************************************************/ -void x86emuOp_adc_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x11 -****************************************************************************/ -void x86emuOp_adc_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x12 -****************************************************************************/ -void x86emuOp_adc_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x13 -****************************************************************************/ -void x86emuOp_adc_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x14 -****************************************************************************/ -void x86emuOp_adc_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = adc_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x15 -****************************************************************************/ -void x86emuOp_adc_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("ADC\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("ADC\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = adc_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = adc_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + u8 op2 = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); + INC_DECODED_INST_LEN(1); + (*x86emu_optab2[op2])(op2); } /**************************************************************************** @@ -1328,12 +504,12 @@ Handles opcode 0x16 ****************************************************************************/ void x86emuOp_push_SS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tSS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_SS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("PUSH\tSS\n"); + TRACE_AND_STEP(); + push_word(M.x86.R_SS); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1342,404 +518,12 @@ Handles opcode 0x17 ****************************************************************************/ void x86emuOp_pop_SS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("POP\tSS\n"); - TRACE_AND_STEP(); - M.x86.R_SS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x18 -****************************************************************************/ -void x86emuOp_sbb_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x19 -****************************************************************************/ -void x86emuOp_sbb_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1a -****************************************************************************/ -void x86emuOp_sbb_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1b -****************************************************************************/ -void x86emuOp_sbb_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1c -****************************************************************************/ -void x86emuOp_sbb_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = sbb_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1d -****************************************************************************/ -void x86emuOp_sbb_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("SBB\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("SBB\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = sbb_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = sbb_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("POP\tSS\n"); + TRACE_AND_STEP(); + M.x86.R_SS = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1748,12 +532,12 @@ Handles opcode 0x1e ****************************************************************************/ void x86emuOp_push_DS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tDS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_DS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("PUSH\tDS\n"); + TRACE_AND_STEP(); + push_word(M.x86.R_DS); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1762,409 +546,12 @@ Handles opcode 0x1f ****************************************************************************/ void x86emuOp_pop_DS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("POP\tDS\n"); - TRACE_AND_STEP(); - M.x86.R_DS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x20 -****************************************************************************/ -void x86emuOp_and_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x21 -****************************************************************************/ -void x86emuOp_and_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x22 -****************************************************************************/ -void x86emuOp_and_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x23 -****************************************************************************/ -void x86emuOp_and_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, srcval); - break; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, srcval); - break; - } - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x24 -****************************************************************************/ -void x86emuOp_and_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("AND\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = and_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x25 -****************************************************************************/ -void x86emuOp_and_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("AND\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("AND\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = and_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = and_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("POP\tDS\n"); + TRACE_AND_STEP(); + M.x86.R_DS = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -2173,15 +560,15 @@ Handles opcode 0x26 ****************************************************************************/ void x86emuOp_segovr_ES(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("ES:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_ES; - /* - * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 - * opcode subroutines we do not want to do this. - */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("ES:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_SEGOVR_ES; + /* + * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 + * opcode subroutines we do not want to do this. + */ + END_OF_INSTR(); } /**************************************************************************** @@ -2190,404 +577,12 @@ Handles opcode 0x27 ****************************************************************************/ void x86emuOp_daa(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("DAA\n"); - TRACE_AND_STEP(); - M.x86.R_AL = daa_byte(M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x28 -****************************************************************************/ -void x86emuOp_sub_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x29 -****************************************************************************/ -void x86emuOp_sub_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2a -****************************************************************************/ -void x86emuOp_sub_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2b -****************************************************************************/ -void x86emuOp_sub_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2c -****************************************************************************/ -void x86emuOp_sub_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = sub_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2d -****************************************************************************/ -void x86emuOp_sub_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("SUB\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("SUB\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = sub_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = sub_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("DAA\n"); + TRACE_AND_STEP(); + M.x86.R_AL = daa_byte(M.x86.R_AL); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -2596,12 +591,12 @@ Handles opcode 0x2e ****************************************************************************/ void x86emuOp_segovr_CS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("CS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_CS; - /* note no DECODE_CLEAR_SEGOVR here. */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("CS:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_SEGOVR_CS; + /* note no DECODE_CLEAR_SEGOVR here. */ + END_OF_INSTR(); } /**************************************************************************** @@ -2610,404 +605,12 @@ Handles opcode 0x2f ****************************************************************************/ void x86emuOp_das(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("DAS\n"); - TRACE_AND_STEP(); - M.x86.R_AL = das_byte(M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x30 -****************************************************************************/ -void x86emuOp_xor_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x31 -****************************************************************************/ -void x86emuOp_xor_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x32 -****************************************************************************/ -void x86emuOp_xor_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x33 -****************************************************************************/ -void x86emuOp_xor_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x34 -****************************************************************************/ -void x86emuOp_xor_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = xor_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x35 -****************************************************************************/ -void x86emuOp_xor_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XOR\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("XOR\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = xor_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = xor_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("DAS\n"); + TRACE_AND_STEP(); + M.x86.R_AL = das_byte(M.x86.R_AL); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -3016,12 +619,12 @@ Handles opcode 0x36 ****************************************************************************/ void x86emuOp_segovr_SS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("SS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_SS; - /* no DECODE_CLEAR_SEGOVR ! */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("SS:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_SEGOVR_SS; + /* no DECODE_CLEAR_SEGOVR ! */ + END_OF_INSTR(); } /**************************************************************************** @@ -3030,395 +633,12 @@ Handles opcode 0x37 ****************************************************************************/ void x86emuOp_aaa(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("AAA\n"); - TRACE_AND_STEP(); - M.x86.R_AX = aaa_word(M.x86.R_AX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x38 -****************************************************************************/ -void x86emuOp_cmp_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 *destreg, *srcreg; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(destval, *srcreg); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(destval, *srcreg); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(destval, *srcreg); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x39 -****************************************************************************/ -void x86emuOp_cmp_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(destval, *srcreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(destval, *srcreg); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(destval, *srcreg); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3a -****************************************************************************/ -void x86emuOp_cmp_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3b -****************************************************************************/ -void x86emuOp_cmp_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3c -****************************************************************************/ -void x86emuOp_cmp_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - cmp_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3d -****************************************************************************/ -void x86emuOp_cmp_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CMP\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("CMP\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - cmp_long(M.x86.R_EAX, srcval); - } else { - cmp_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("AAA\n"); + TRACE_AND_STEP(); + M.x86.R_AX = aaa_word(M.x86.R_AX); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -3427,12 +647,12 @@ Handles opcode 0x3e ****************************************************************************/ void x86emuOp_segovr_DS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("DS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_DS; - /* NO DECODE_CLEAR_SEGOVR! */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("DS:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_SEGOVR_DS; + /* NO DECODE_CLEAR_SEGOVR! */ + END_OF_INSTR(); } /**************************************************************************** @@ -3441,720 +661,116 @@ Handles opcode 0x3f ****************************************************************************/ void x86emuOp_aas(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("AAS\n"); - TRACE_AND_STEP(); - M.x86.R_AX = aas_word(M.x86.R_AX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x40 -****************************************************************************/ -void x86emuOp_inc_AX(u8 X86EMU_UNUSED(op1)) + START_OF_INSTR(); + DECODE_PRINTF("AAS\n"); + TRACE_AND_STEP(); + M.x86.R_AX = aas_word(M.x86.R_AX); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcode 0x40 - 0x47 +****************************************************************************/ +void x86emuOp_inc_register(u8 op1) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEAX\n"); - } else { - DECODE_PRINTF("INC\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = inc_long(M.x86.R_EAX); - } else { - M.x86.R_AX = inc_word(M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + op1 &= 0x7; + DECODE_PRINTF("INC\t"); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *reg; + reg = DECODE_RM_LONG_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *reg = inc_long(*reg); + } else { + u16 *reg; + reg = DECODE_RM_WORD_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *reg = inc_word(*reg); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** REMARKS: -Handles opcode 0x41 +Handles opcode 0x48 - 0x4F ****************************************************************************/ -void x86emuOp_inc_CX(u8 X86EMU_UNUSED(op1)) +void x86emuOp_dec_register(u8 op1) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tECX\n"); - } else { - DECODE_PRINTF("INC\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = inc_long(M.x86.R_ECX); - } else { - M.x86.R_CX = inc_word(M.x86.R_CX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + op1 &= 0x7; + DECODE_PRINTF("DEC\t"); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *reg; + reg = DECODE_RM_LONG_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *reg = dec_long(*reg); + } else { + u16 *reg; + reg = DECODE_RM_WORD_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *reg = dec_word(*reg); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** REMARKS: -Handles opcode 0x42 +Handles opcode 0x50 - 0x57 ****************************************************************************/ -void x86emuOp_inc_DX(u8 X86EMU_UNUSED(op1)) +void x86emuOp_push_register(u8 op1) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEDX\n"); - } else { - DECODE_PRINTF("INC\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = inc_long(M.x86.R_EDX); - } else { - M.x86.R_DX = inc_word(M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + op1 &= 0x7; + DECODE_PRINTF("PUSH\t"); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *reg; + reg = DECODE_RM_LONG_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + push_long(*reg); + } else { + u16 *reg; + reg = DECODE_RM_WORD_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + push_word(*reg); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** REMARKS: -Handles opcode 0x43 +Handles opcode 0x58 - 0x5F ****************************************************************************/ -void x86emuOp_inc_BX(u8 X86EMU_UNUSED(op1)) +void x86emuOp_pop_register(u8 op1) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEBX\n"); - } else { - DECODE_PRINTF("INC\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = inc_long(M.x86.R_EBX); - } else { - M.x86.R_BX = inc_word(M.x86.R_BX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x44 -****************************************************************************/ -void x86emuOp_inc_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tESP\n"); - } else { - DECODE_PRINTF("INC\tSP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = inc_long(M.x86.R_ESP); - } else { - M.x86.R_SP = inc_word(M.x86.R_SP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x45 -****************************************************************************/ -void x86emuOp_inc_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEBP\n"); - } else { - DECODE_PRINTF("INC\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = inc_long(M.x86.R_EBP); - } else { - M.x86.R_BP = inc_word(M.x86.R_BP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x46 -****************************************************************************/ -void x86emuOp_inc_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tESI\n"); - } else { - DECODE_PRINTF("INC\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = inc_long(M.x86.R_ESI); - } else { - M.x86.R_SI = inc_word(M.x86.R_SI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x47 -****************************************************************************/ -void x86emuOp_inc_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEDI\n"); - } else { - DECODE_PRINTF("INC\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = inc_long(M.x86.R_EDI); - } else { - M.x86.R_DI = inc_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x48 -****************************************************************************/ -void x86emuOp_dec_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEAX\n"); - } else { - DECODE_PRINTF("DEC\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = dec_long(M.x86.R_EAX); - } else { - M.x86.R_AX = dec_word(M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x49 -****************************************************************************/ -void x86emuOp_dec_CX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tECX\n"); - } else { - DECODE_PRINTF("DEC\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = dec_long(M.x86.R_ECX); - } else { - M.x86.R_CX = dec_word(M.x86.R_CX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4a -****************************************************************************/ -void x86emuOp_dec_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEDX\n"); - } else { - DECODE_PRINTF("DEC\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = dec_long(M.x86.R_EDX); - } else { - M.x86.R_DX = dec_word(M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4b -****************************************************************************/ -void x86emuOp_dec_BX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEBX\n"); - } else { - DECODE_PRINTF("DEC\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = dec_long(M.x86.R_EBX); - } else { - M.x86.R_BX = dec_word(M.x86.R_BX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4c -****************************************************************************/ -void x86emuOp_dec_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tESP\n"); - } else { - DECODE_PRINTF("DEC\tSP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = dec_long(M.x86.R_ESP); - } else { - M.x86.R_SP = dec_word(M.x86.R_SP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4d -****************************************************************************/ -void x86emuOp_dec_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEBP\n"); - } else { - DECODE_PRINTF("DEC\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = dec_long(M.x86.R_EBP); - } else { - M.x86.R_BP = dec_word(M.x86.R_BP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4e -****************************************************************************/ -void x86emuOp_dec_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tESI\n"); - } else { - DECODE_PRINTF("DEC\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = dec_long(M.x86.R_ESI); - } else { - M.x86.R_SI = dec_word(M.x86.R_SI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4f -****************************************************************************/ -void x86emuOp_dec_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEDI\n"); - } else { - DECODE_PRINTF("DEC\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = dec_long(M.x86.R_EDI); - } else { - M.x86.R_DI = dec_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x50 -****************************************************************************/ -void x86emuOp_push_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEAX\n"); - } else { - DECODE_PRINTF("PUSH\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EAX); - } else { - push_word(M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x51 -****************************************************************************/ -void x86emuOp_push_CX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tECX\n"); - } else { - DECODE_PRINTF("PUSH\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_ECX); - } else { - push_word(M.x86.R_CX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x52 -****************************************************************************/ -void x86emuOp_push_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEDX\n"); - } else { - DECODE_PRINTF("PUSH\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EDX); - } else { - push_word(M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x53 -****************************************************************************/ -void x86emuOp_push_BX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEBX\n"); - } else { - DECODE_PRINTF("PUSH\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EBX); - } else { - push_word(M.x86.R_BX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x54 -****************************************************************************/ -void x86emuOp_push_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tESP\n"); - } else { - DECODE_PRINTF("PUSH\tSP\n"); - } - TRACE_AND_STEP(); - /* Always push (E)SP, since we are emulating an i386 and above - * processor. This is necessary as some BIOS'es use this to check - * what type of processor is in the system. - */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_ESP); - } else { - push_word((u16) (M.x86.R_SP)); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x55 -****************************************************************************/ -void x86emuOp_push_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEBP\n"); - } else { - DECODE_PRINTF("PUSH\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EBP); - } else { - push_word(M.x86.R_BP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x56 -****************************************************************************/ -void x86emuOp_push_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tESI\n"); - } else { - DECODE_PRINTF("PUSH\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_ESI); - } else { - push_word(M.x86.R_SI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x57 -****************************************************************************/ -void x86emuOp_push_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEDI\n"); - } else { - DECODE_PRINTF("PUSH\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EDI); - } else { - push_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x58 -****************************************************************************/ -void x86emuOp_pop_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEAX\n"); - } else { - DECODE_PRINTF("POP\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = pop_long(); - } else { - M.x86.R_AX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x59 -****************************************************************************/ -void x86emuOp_pop_CX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tECX\n"); - } else { - DECODE_PRINTF("POP\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = pop_long(); - } else { - M.x86.R_CX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5a -****************************************************************************/ -void x86emuOp_pop_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEDX\n"); - } else { - DECODE_PRINTF("POP\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = pop_long(); - } else { - M.x86.R_DX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5b -****************************************************************************/ -void x86emuOp_pop_BX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEBX\n"); - } else { - DECODE_PRINTF("POP\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = pop_long(); - } else { - M.x86.R_BX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5c -****************************************************************************/ -void x86emuOp_pop_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tESP\n"); - } else { - DECODE_PRINTF("POP\tSP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = pop_long(); - } else { - M.x86.R_SP = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5d -****************************************************************************/ -void x86emuOp_pop_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEBP\n"); - } else { - DECODE_PRINTF("POP\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = pop_long(); - } else { - M.x86.R_BP = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5e -****************************************************************************/ -void x86emuOp_pop_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tESI\n"); - } else { - DECODE_PRINTF("POP\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = pop_long(); - } else { - M.x86.R_SI = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5f -****************************************************************************/ -void x86emuOp_pop_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEDI\n"); - } else { - DECODE_PRINTF("POP\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = pop_long(); - } else { - M.x86.R_DI = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + op1 &= 0x7; + DECODE_PRINTF("POP\t"); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *reg; + reg = DECODE_RM_LONG_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *reg = pop_long(); + } else { + u16 *reg; + reg = DECODE_RM_WORD_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *reg = pop_word(); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4163,38 +779,38 @@ Handles opcode 0x60 ****************************************************************************/ void x86emuOp_push_all(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSHAD\n"); - } else { - DECODE_PRINTF("PUSHA\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 old_sp = M.x86.R_ESP; - - push_long(M.x86.R_EAX); - push_long(M.x86.R_ECX); - push_long(M.x86.R_EDX); - push_long(M.x86.R_EBX); - push_long(old_sp); - push_long(M.x86.R_EBP); - push_long(M.x86.R_ESI); - push_long(M.x86.R_EDI); - } else { - u16 old_sp = M.x86.R_SP; - - push_word(M.x86.R_AX); - push_word(M.x86.R_CX); - push_word(M.x86.R_DX); - push_word(M.x86.R_BX); - push_word(old_sp); - push_word(M.x86.R_BP); - push_word(M.x86.R_SI); - push_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("PUSHAD\n"); + } else { + DECODE_PRINTF("PUSHA\n"); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 old_sp = M.x86.R_ESP; + + push_long(M.x86.R_EAX); + push_long(M.x86.R_ECX); + push_long(M.x86.R_EDX); + push_long(M.x86.R_EBX); + push_long(old_sp); + push_long(M.x86.R_EBP); + push_long(M.x86.R_ESI); + push_long(M.x86.R_EDI); + } else { + u16 old_sp = M.x86.R_SP; + + push_word(M.x86.R_AX); + push_word(M.x86.R_CX); + push_word(M.x86.R_DX); + push_word(M.x86.R_BX); + push_word(old_sp); + push_word(M.x86.R_BP); + push_word(M.x86.R_SI); + push_word(M.x86.R_DI); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4203,34 +819,34 @@ Handles opcode 0x61 ****************************************************************************/ void x86emuOp_pop_all(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POPAD\n"); - } else { - DECODE_PRINTF("POPA\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = pop_long(); - M.x86.R_ESI = pop_long(); - M.x86.R_EBP = pop_long(); - M.x86.R_ESP += 4; /* skip ESP */ - M.x86.R_EBX = pop_long(); - M.x86.R_EDX = pop_long(); - M.x86.R_ECX = pop_long(); - M.x86.R_EAX = pop_long(); - } else { - M.x86.R_DI = pop_word(); - M.x86.R_SI = pop_word(); - M.x86.R_BP = pop_word(); - M.x86.R_SP += 2; /* skip SP */ - M.x86.R_BX = pop_word(); - M.x86.R_DX = pop_word(); - M.x86.R_CX = pop_word(); - M.x86.R_AX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("POPAD\n"); + } else { + DECODE_PRINTF("POPA\n"); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_EDI = pop_long(); + M.x86.R_ESI = pop_long(); + M.x86.R_EBP = pop_long(); + M.x86.R_ESP += 4; /* skip ESP */ + M.x86.R_EBX = pop_long(); + M.x86.R_EDX = pop_long(); + M.x86.R_ECX = pop_long(); + M.x86.R_EAX = pop_long(); + } else { + M.x86.R_DI = pop_word(); + M.x86.R_SI = pop_word(); + M.x86.R_BP = pop_word(); + M.x86.R_SP += 2; /* skip SP */ + M.x86.R_BX = pop_word(); + M.x86.R_DX = pop_word(); + M.x86.R_CX = pop_word(); + M.x86.R_AX = pop_word(); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /*opcode 0x62 ILLEGAL OP, calls x86emuOp_illegal_op() */ @@ -4242,15 +858,15 @@ Handles opcode 0x64 ****************************************************************************/ void x86emuOp_segovr_FS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("FS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_FS; - /* - * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 - * opcode subroutines we do not want to do this. - */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("FS:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_SEGOVR_FS; + /* + * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 + * opcode subroutines we do not want to do this. + */ + END_OF_INSTR(); } /**************************************************************************** @@ -4259,15 +875,15 @@ Handles opcode 0x65 ****************************************************************************/ void x86emuOp_segovr_GS(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("GS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_GS; - /* - * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 - * opcode subroutines we do not want to do this. - */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("GS:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_SEGOVR_GS; + /* + * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 + * opcode subroutines we do not want to do this. + */ + END_OF_INSTR(); } /**************************************************************************** @@ -4276,12 +892,12 @@ Handles opcode 0x66 - prefix for 32-bit register ****************************************************************************/ void x86emuOp_prefix_data(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("DATA:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_DATA; - /* note no DECODE_CLEAR_SEGOVR here. */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("DATA:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_PREFIX_DATA; + /* note no DECODE_CLEAR_SEGOVR here. */ + END_OF_INSTR(); } /**************************************************************************** @@ -4290,12 +906,12 @@ Handles opcode 0x67 - prefix for 32-bit address ****************************************************************************/ void x86emuOp_prefix_addr(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("ADDR:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_ADDR; - /* note no DECODE_CLEAR_SEGOVR here. */ - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("ADDR:\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_PREFIX_ADDR; + /* note no DECODE_CLEAR_SEGOVR here. */ + END_OF_INSTR(); } /**************************************************************************** @@ -4304,23 +920,23 @@ Handles opcode 0x68 ****************************************************************************/ void x86emuOp_push_word_IMM(u8 X86EMU_UNUSED(op1)) { - u32 imm; + u32 imm; - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - imm = fetch_long_imm(); - } else { - imm = fetch_word_imm(); - } - DECODE_PRINTF2("PUSH\t%x\n", imm); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(imm); - } else { - push_word((u16) imm); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + imm = fetch_long_imm(); + } else { + imm = fetch_word_imm(); + } + DECODE_PRINTF2("PUSH\t%x\n", imm); + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + push_long(imm); + } else { + push_word((u16)imm); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4329,199 +945,105 @@ Handles opcode 0x69 ****************************************************************************/ void x86emuOp_imul_word_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("IMUL\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - res = (s16) srcval *(s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - res = (s16) srcval *(s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - res = (s16) srcval *(s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - u32 res_lo, res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) * srcreg, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg, *srcreg; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - res = (s16) * srcreg * (s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("IMUL\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 srcval; + u32 res_lo,res_hi; + s32 imm; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcval = fetch_data_long(srcoffset); + imm = fetch_long_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + TRACE_AND_STEP(); + imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); + if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) || + (((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u32)res_lo; + } else { + u16 *destreg; + u16 srcval; + u32 res; + s16 imm; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcval = fetch_data_word(srcoffset); + imm = fetch_word_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + TRACE_AND_STEP(); + res = (s16)srcval * (s16)imm; + if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) || + (((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u16)res; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*srcreg; + u32 res_lo,res_hi; + s32 imm; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rl); + imm = fetch_long_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + TRACE_AND_STEP(); + imul_long_direct(&res_lo,&res_hi,(s32)*srcreg,(s32)imm); + if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) || + (((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u32)res_lo; + } else { + u16 *destreg,*srcreg; + u32 res; + s16 imm; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + imm = fetch_word_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + res = (s16)*srcreg * (s16)imm; + if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) || + (((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u16)res; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4530,15 +1052,15 @@ Handles opcode 0x6a ****************************************************************************/ void x86emuOp_push_byte_IMM(u8 X86EMU_UNUSED(op1)) { - s16 imm; + s16 imm; - START_OF_INSTR(); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2("PUSH\t%d\n", imm); - TRACE_AND_STEP(); - push_word(imm); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + imm = (s8)fetch_byte_imm(); + DECODE_PRINTF2("PUSH\t%d\n", imm); + TRACE_AND_STEP(); + push_word(imm); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4547,192 +1069,103 @@ Handles opcode 0x6b ****************************************************************************/ void x86emuOp_imul_byte_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint srcoffset; - s8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("IMUL\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - res = (s16) srcval *(s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - res = (s16) srcval *(s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - res = (s16) srcval *(s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) * srcreg, (s32) imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg, *srcreg; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32) imm); - res = (s16) * srcreg * (s16) imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + s8 imm; + + START_OF_INSTR(); + DECODE_PRINTF("IMUL\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 srcval; + u32 res_lo,res_hi; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcval = fetch_data_long(srcoffset); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + TRACE_AND_STEP(); + imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); + if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) || + (((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u32)res_lo; + } else { + u16 *destreg; + u16 srcval; + u32 res; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcval = fetch_data_word(srcoffset); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + TRACE_AND_STEP(); + res = (s16)srcval * (s16)imm; + if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) || + (((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u16)res; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*srcreg; + u32 res_lo,res_hi; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rl); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + TRACE_AND_STEP(); + imul_long_direct(&res_lo,&res_hi,(s32)*srcreg,(s32)imm); + if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) || + (((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u32)res_lo; + } else { + u16 *destreg,*srcreg; + u32 res; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%d\n", (s32)imm); + TRACE_AND_STEP(); + res = (s16)*srcreg * (s16)imm; + if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) || + (((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } + *destreg = (u16)res; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4741,12 +1174,12 @@ Handles opcode 0x6c ****************************************************************************/ void x86emuOp_ins_byte(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("INSB\n"); - ins(1); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("INSB\n"); + ins(1); + TRACE_AND_STEP(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4755,17 +1188,17 @@ Handles opcode 0x6d ****************************************************************************/ void x86emuOp_ins_word(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INSD\n"); - ins(4); - } else { - DECODE_PRINTF("INSW\n"); - ins(2); - } - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("INSD\n"); + ins(4); + } else { + DECODE_PRINTF("INSW\n"); + ins(2); + } + TRACE_AND_STEP(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4774,12 +1207,12 @@ Handles opcode 0x6e ****************************************************************************/ void x86emuOp_outs_byte(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("OUTSB\n"); - outs(1); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("OUTSB\n"); + outs(1); + TRACE_AND_STEP(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -4788,528 +1221,124 @@ Handles opcode 0x6f ****************************************************************************/ void x86emuOp_outs_word(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("OUTSD\n"); - outs(4); - } else { - DECODE_PRINTF("OUTSW\n"); - outs(2); - } - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x70 -****************************************************************************/ -void x86emuOp_jump_near_O(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if overflow flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JO\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_OF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x71 -****************************************************************************/ -void x86emuOp_jump_near_NO(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if overflow is not set */ - START_OF_INSTR(); - DECODE_PRINTF("JNO\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_OF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x72 -****************************************************************************/ -void x86emuOp_jump_near_B(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if carry flag is set. */ - START_OF_INSTR(); - DECODE_PRINTF("JB\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_CF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x73 -****************************************************************************/ -void x86emuOp_jump_near_NB(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if carry flag is clear. */ - START_OF_INSTR(); - DECODE_PRINTF("JNB\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_CF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x74 -****************************************************************************/ -void x86emuOp_jump_near_Z(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if zero flag is set. */ - START_OF_INSTR(); - DECODE_PRINTF("JZ\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x75 -****************************************************************************/ -void x86emuOp_jump_near_NZ(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if zero flag is clear. */ - START_OF_INSTR(); - DECODE_PRINTF("JNZ\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("OUTSD\n"); + outs(4); + } else { + DECODE_PRINTF("OUTSW\n"); + outs(2); + } + TRACE_AND_STEP(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** REMARKS: -Handles opcode 0x76 +Handles opcode 0x70 - 0x7F ****************************************************************************/ -void x86emuOp_jump_near_BE(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if carry flag is set or if the zero - flag is set. */ - START_OF_INSTR(); - DECODE_PRINTF("JBE\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} +int x86emu_check_jump_condition(u8 op); -/**************************************************************************** -REMARKS: -Handles opcode 0x77 -****************************************************************************/ -void x86emuOp_jump_near_NBE(u8 X86EMU_UNUSED(op1)) +void x86emuOp_jump_near_cond(u8 op1) { - s8 offset; - u16 target; + s8 offset; + u16 target; + int cond; - /* jump to byte offset if carry flag is clear and if the zero - flag is clear */ - START_OF_INSTR(); - DECODE_PRINTF("JNBE\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF))) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x78 -****************************************************************************/ -void x86emuOp_jump_near_S(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if sign flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JS\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_SF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x79 -****************************************************************************/ -void x86emuOp_jump_near_NS(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if sign flag is clear */ - START_OF_INSTR(); - DECODE_PRINTF("JNS\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_SF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7a -****************************************************************************/ -void x86emuOp_jump_near_P(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if parity flag is set (even parity) */ - START_OF_INSTR(); - DECODE_PRINTF("JP\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_PF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7b -****************************************************************************/ -void x86emuOp_jump_near_NP(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if parity flag is clear (odd parity) */ - START_OF_INSTR(); - DECODE_PRINTF("JNP\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_PF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* jump to byte offset if overflow flag is set */ + START_OF_INSTR(); + cond = x86emu_check_jump_condition(op1 & 0xF); + offset = (s8)fetch_byte_imm(); + target = (u16)(M.x86.R_IP + (s16)offset); + DECODE_PRINTF2("%x\n", target); + TRACE_AND_STEP(); + if (cond) + M.x86.R_IP = target; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** REMARKS: -Handles opcode 0x7c -****************************************************************************/ -void x86emuOp_jump_near_L(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag not equal to overflow flag. */ - START_OF_INSTR(); - DECODE_PRINTF("JL\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - if (sf ^ of) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7d -****************************************************************************/ -void x86emuOp_jump_near_NL(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag not equal to overflow flag. */ - START_OF_INSTR(); - DECODE_PRINTF("JNL\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - /* note: inverse of above, but using == instead of xor. */ - if (sf == of) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7e -****************************************************************************/ -void x86emuOp_jump_near_LE(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag not equal to overflow flag - or the zero flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JLE\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - if ((sf ^ of) || ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7f -****************************************************************************/ -void x86emuOp_jump_near_NLE(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag equal to overflow flag. - and the zero flag is clear */ - START_OF_INSTR(); - DECODE_PRINTF("JNLE\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + (s16) offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - if ((sf == of) && !ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u8(*opc80_byte_operation[]) (u8 d, u8 s) = { - add_byte, /* 00 */ - or_byte, /* 01 */ - adc_byte, /* 02 */ - sbb_byte, /* 03 */ - and_byte, /* 04 */ - sub_byte, /* 05 */ - xor_byte, /* 06 */ - cmp_byte, /* 07 */ -}; - -/**************************************************************************** -REMARKS: Handles opcode 0x80 ****************************************************************************/ void x86emuOp_opc80_byte_RM_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 imm; - u8 destval; - - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + u8 *destreg; + uint destoffset; + u8 imm; + u8 destval; + + /* + * Weirdo special case instruction format. Part of the opcode + * held below in "RH". Doubly nested case would result, except + * that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + + switch (rh) { + case 0: + DECODE_PRINTF("ADD\t"); + break; + case 1: + DECODE_PRINTF("OR\t"); + break; + case 2: + DECODE_PRINTF("ADC\t"); + break; + case 3: + DECODE_PRINTF("SBB\t"); + break; + case 4: + DECODE_PRINTF("AND\t"); + break; + case 5: + DECODE_PRINTF("SUB\t"); + break; + case 6: + DECODE_PRINTF("XOR\t"); + break; + case 7: + DECODE_PRINTF("CMP\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u16(*opc81_word_operation[]) (u16 d, u16 s) = { - add_word, /*00 */ - or_word, /*01 */ - adc_word, /*02 */ - sbb_word, /*03 */ - and_word, /*04 */ - sub_word, /*05 */ - xor_word, /*06 */ - cmp_word, /*07 */ -}; - -static u32(*opc81_long_operation[]) (u32 d, u32 s) = { - add_long, /*00 */ - or_long, /*01 */ - adc_long, /*02 */ - sbb_long, /*03 */ - and_long, /*04 */ - sub_long, /*05 */ - xor_long, /*06 */ - cmp_long, /*07 */ -}; + /* know operation, decode the mod byte to find the addressing + mode. */ + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + destval = fetch_data_byte(destoffset); + imm = fetch_byte_imm(); + DECODE_PRINTF2("%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_byte_operation[rh]) (destval, imm); + if (rh != 7) + store_data_byte(destoffset, destval); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF(","); + imm = fetch_byte_imm(); + DECODE_PRINTF2("%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_byte_operation[rh]) (*destreg, imm); + if (rh != 7) + *destreg = destval; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} /**************************************************************************** REMARKS: @@ -5317,185 +1346,111 @@ Handles opcode 0x81 ****************************************************************************/ void x86emuOp_opc81_word_RM_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; + int mod, rl, rh; + uint destoffset; - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + /* + * Weirdo special case instruction format. Part of the opcode + * held below in "RH". Doubly nested case would result, except + * that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + + switch (rh) { + case 0: + DECODE_PRINTF("ADD\t"); + break; + case 1: + DECODE_PRINTF("OR\t"); + break; + case 2: + DECODE_PRINTF("ADC\t"); + break; + case 3: + DECODE_PRINTF("SBB\t"); + break; + case 4: + DECODE_PRINTF("AND\t"); + break; + case 5: + DECODE_PRINTF("SUB\t"); + break; + case 6: + DECODE_PRINTF("XOR\t"); + break; + case 7: + DECODE_PRINTF("CMP\t"); + break; + } + } #endif - /* - * Know operation, decode the mod byte to find the addressing - * mode. - */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval, imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval, imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval, imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 destval, imm; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } else { - u16 *destreg; - u16 destval, imm; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u8(*opc82_byte_operation[]) (u8 s, u8 d) = { - add_byte, /*00 */ - or_byte, /*01 *//*YYY UNUSED ???? */ - adc_byte, /*02 */ - sbb_byte, /*03 */ - and_byte, /*04 *//*YYY UNUSED ???? */ - sub_byte, /*05 */ - xor_byte, /*06 *//*YYY UNUSED ???? */ - cmp_byte, /*07 */ -}; + /* + * Know operation, decode the mod byte to find the addressing + * mode. + */ + if (mod < 3) { + DECODE_PRINTF("DWORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval,imm; + + DECODE_PRINTF(","); + destval = fetch_data_long(destoffset); + imm = fetch_long_imm(); + DECODE_PRINTF2("%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_long_operation[rh]) (destval, imm); + if (rh != 7) + store_data_long(destoffset, destval); + } else { + u16 destval,imm; + + DECODE_PRINTF(","); + destval = fetch_data_word(destoffset); + imm = fetch_word_imm(); + DECODE_PRINTF2("%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_word_operation[rh]) (destval, imm); + if (rh != 7) + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 destval,imm; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + imm = fetch_long_imm(); + DECODE_PRINTF2("%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_long_operation[rh]) (*destreg, imm); + if (rh != 7) + *destreg = destval; + } else { + u16 *destreg; + u16 destval,imm; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + imm = fetch_word_imm(); + DECODE_PRINTF2("%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_word_operation[rh]) (*destreg, imm); + if (rh != 7) + *destreg = destval; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} /**************************************************************************** REMARKS: @@ -5503,125 +1458,78 @@ Handles opcode 0x82 ****************************************************************************/ void x86emuOp_opc82_byte_RM_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 imm; - u8 destval; - - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction Similar to opcode 81, except that - * the immediate byte is sign extended to a word length. - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + u8 *destreg; + uint destoffset; + u8 imm; + u8 destval; + + /* + * Weirdo special case instruction format. Part of the opcode + * held below in "RH". Doubly nested case would result, except + * that the decoded instruction Similar to opcode 81, except that + * the immediate byte is sign extended to a word length. + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + switch (rh) { + case 0: + DECODE_PRINTF("ADD\t"); + break; + case 1: + DECODE_PRINTF("OR\t"); + break; + case 2: + DECODE_PRINTF("ADC\t"); + break; + case 3: + DECODE_PRINTF("SBB\t"); + break; + case 4: + DECODE_PRINTF("AND\t"); + break; + case 5: + DECODE_PRINTF("SUB\t"); + break; + case 6: + DECODE_PRINTF("XOR\t"); + break; + case 7: + DECODE_PRINTF("CMP\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u16(*opc83_word_operation[]) (u16 s, u16 d) = { - add_word, /*00 */ - or_word, /*01 *//*YYY UNUSED ???? */ - adc_word, /*02 */ - sbb_word, /*03 */ - and_word, /*04 *//*YYY UNUSED ???? */ - sub_word, /*05 */ - xor_word, /*06 *//*YYY UNUSED ???? */ - cmp_word, /*07 */ -}; - -static u32(*opc83_long_operation[]) (u32 s, u32 d) = { - add_long, /*00 */ - or_long, /*01 *//*YYY UNUSED ???? */ - adc_long, /*02 */ - sbb_long, /*03 */ - and_long, /*04 *//*YYY UNUSED ???? */ - sub_long, /*05 */ - xor_long, /*06 *//*YYY UNUSED ???? */ - cmp_long, /*07 */ -}; + /* know operation, decode the mod byte to find the addressing + mode. */ + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + destval = fetch_data_byte(destoffset); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_byte_operation[rh]) (destval, imm); + if (rh != 7) + store_data_byte(destoffset, destval); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_byte_operation[rh]) (*destreg, imm); + if (rh != 7) + *destreg = destval; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} /**************************************************************************** REMARKS: @@ -5629,163 +1537,105 @@ Handles opcode 0x83 ****************************************************************************/ void x86emuOp_opc83_word_RM_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction Similar to opcode 81, except that - * the immediate byte is sign extended to a word length. - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + uint destoffset; + + /* + * Weirdo special case instruction format. Part of the opcode + * held below in "RH". Doubly nested case would result, except + * that the decoded instruction Similar to opcode 81, except that + * the immediate byte is sign extended to a word length. + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + switch (rh) { + case 0: + DECODE_PRINTF("ADD\t"); + break; + case 1: + DECODE_PRINTF("OR\t"); + break; + case 2: + DECODE_PRINTF("ADC\t"); + break; + case 3: + DECODE_PRINTF("SBB\t"); + break; + case 4: + DECODE_PRINTF("AND\t"); + break; + case 5: + DECODE_PRINTF("SUB\t"); + break; + case 6: + DECODE_PRINTF("XOR\t"); + break; + case 7: + DECODE_PRINTF("CMP\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - destval = fetch_data_long(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval, imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - destval = fetch_data_word(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - destval = fetch_data_long(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval, imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - destval = fetch_data_word(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - destval = fetch_data_long(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval, imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - destval = fetch_data_word(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 destval, imm; - - destreg = DECODE_RM_LONG_REGISTER(rl); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } else { - u16 *destreg; - u16 destval, imm; - - destreg = DECODE_RM_WORD_REGISTER(rl); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* know operation, decode the mod byte to find the addressing + mode. */ + if (mod < 3) { + DECODE_PRINTF("DWORD PTR "); + destoffset = decode_rmXX_address(mod,rl); + + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval,imm; + + destval = fetch_data_long(destoffset); + imm = (s8) fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_long_operation[rh]) (destval, imm); + if (rh != 7) + store_data_long(destoffset, destval); + } else { + u16 destval,imm; + + destval = fetch_data_word(destoffset); + imm = (s8) fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_word_operation[rh]) (destval, imm); + if (rh != 7) + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 destval,imm; + + destreg = DECODE_RM_LONG_REGISTER(rl); + imm = (s8) fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_long_operation[rh]) (*destreg, imm); + if (rh != 7) + *destreg = destval; + } else { + u16 *destreg; + u16 destval,imm; + + destreg = DECODE_RM_WORD_REGISTER(rl); + imm = (s8) fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + destval = (*genop_word_operation[rh]) (*destreg, imm); + if (rh != 7) + *destreg = destval; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -5794,53 +1644,32 @@ Handles opcode 0x84 ****************************************************************************/ void x86emuOp_test_byte_RM_R(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("TEST\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(destval, *srcreg); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(destval, *srcreg); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(destval, *srcreg); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u8 *destreg, *srcreg; + uint destoffset; + u8 destval; + + START_OF_INSTR(); + DECODE_PRINTF("TEST\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + destval = fetch_data_byte(destoffset); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + test_byte(destval, *srcreg); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + test_byte(*destreg, *srcreg); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -5849,112 +1678,58 @@ Handles opcode 0x85 ****************************************************************************/ void x86emuOp_test_word_RM_R(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("TEST\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(destval, *srcreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(destval, *srcreg); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(destval, *srcreg); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(*destreg, *srcreg); - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("TEST\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + u32 *srcreg; + + DECODE_PRINTF(","); + destval = fetch_data_long(destoffset); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + test_long(destval, *srcreg); + } else { + u16 destval; + u16 *srcreg; + + DECODE_PRINTF(","); + destval = fetch_data_word(destoffset); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + test_word(destval, *srcreg); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*srcreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + test_long(*destreg, *srcreg); + } else { + u16 *destreg,*srcreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + test_word(*destreg, *srcreg); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -5963,65 +1738,38 @@ Handles opcode 0x86 ****************************************************************************/ void x86emuOp_xchg_byte_RM_R(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - u8 tmp; - - START_OF_INSTR(); - DECODE_PRINTF("XCHG\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = *destreg; - *destreg = tmp; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u8 *destreg, *srcreg; + uint destoffset; + u8 destval; + u8 tmp; + + START_OF_INSTR(); + DECODE_PRINTF("XCHG\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + destval = fetch_data_byte(destoffset); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = *srcreg; + *srcreg = destval; + destval = tmp; + store_data_byte(destoffset, destval); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = *srcreg; + *srcreg = *destreg; + *destreg = tmp; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6030,136 +1778,69 @@ Handles opcode 0x87 ****************************************************************************/ void x86emuOp_xchg_word_RM_R(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("XCHG\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 destval, tmp; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_long(destoffset, destval); - } else { - u16 *srcreg; - u16 destval, tmp; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 destval, tmp; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_long(destoffset, destval); - } else { - u16 *srcreg; - u16 destval, tmp; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 destval, tmp; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_long(destoffset, destval); - } else { - u16 *srcreg; - u16 destval, tmp; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - u32 tmp; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = *destreg; - *destreg = tmp; - } else { - u16 *destreg, *srcreg; - u16 tmp; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = *destreg; - *destreg = tmp; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("XCHG\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg; + u32 destval,tmp; + + destval = fetch_data_long(destoffset); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = *srcreg; + *srcreg = destval; + destval = tmp; + store_data_long(destoffset, destval); + } else { + u16 *srcreg; + u16 destval,tmp; + + destval = fetch_data_word(destoffset); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = *srcreg; + *srcreg = destval; + destval = tmp; + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*srcreg; + u32 tmp; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = *srcreg; + *srcreg = *destreg; + *destreg = tmp; + } else { + u16 *destreg,*srcreg; + u16 tmp; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = *srcreg; + *srcreg = *destreg; + *destreg = tmp; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6168,49 +1849,30 @@ Handles opcode 0x88 ****************************************************************************/ void x86emuOp_mov_byte_RM_R(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_byte(destoffset, *srcreg); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_byte(destoffset, *srcreg); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_byte(destoffset, *srcreg); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u8 *destreg, *srcreg; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + store_data_byte(destoffset, *srcreg); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6219,100 +1881,54 @@ Handles opcode 0x89 ****************************************************************************/ void x86emuOp_mov_word_RM_R(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_long(destoffset, *srcreg); - } else { - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_word(destoffset, *srcreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_long(destoffset, *srcreg); - } else { - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_word(destoffset, *srcreg); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_long(destoffset, *srcreg); - } else { - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_word(destoffset, *srcreg); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg; + + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + store_data_long(destoffset, *srcreg); + } else { + u16 *srcreg; + + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + store_data_word(destoffset, *srcreg); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*srcreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } else { + u16 *destreg,*srcreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6321,53 +1937,32 @@ Handles opcode 0x8a ****************************************************************************/ void x86emuOp_mov_byte_R_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u8 *destreg, *srcreg; + uint srcoffset; + u8 srcval; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_byte(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6376,112 +1971,59 @@ Handles opcode 0x8b ****************************************************************************/ void x86emuOp_mov_word_R_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 srcval; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_long(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } else { + u16 *destreg; + u16 srcval; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_word(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg, *srcreg; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } else { + u16 *destreg, *srcreg; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6490,53 +2032,32 @@ Handles opcode 0x8c ****************************************************************************/ void x86emuOp_mov_word_RM_SR(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u16 *destreg, *srcreg; - uint destoffset; - u16 destval; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = *srcreg; - store_data_word(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = *srcreg; - store_data_word(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = *srcreg; - store_data_word(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u16 *destreg, *srcreg; + uint destoffset; + u16 destval; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + srcreg = decode_rm_seg_register(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = *srcreg; + store_data_word(destoffset, destval); + } else { /* register to register */ + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + srcreg = decode_rm_seg_register(rh); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6545,9 +2066,9 @@ Handles opcode 0x8d ****************************************************************************/ void x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u16 *srcreg; - uint destoffset; + int mod, rl, rh; + u16 *srcreg; + uint destoffset; /* * TODO: Need to handle address size prefix! @@ -6555,40 +2076,20 @@ void x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1)) * lea eax,[eax+ebx*2] ?? */ - START_OF_INSTR(); - DECODE_PRINTF("LEA\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *srcreg = (u16) destoffset; - break; - case 1: - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *srcreg = (u16) destoffset; - break; - case 2: - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *srcreg = (u16) destoffset; - break; - case 3: /* register to register */ - /* undefined. Do nothing. */ - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("LEA\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *srcreg = (u16)destoffset; + } + /* } else { undefined. Do nothing. } */ + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6597,59 +2098,38 @@ Handles opcode 0x8e ****************************************************************************/ void x86emuOp_mov_word_SR_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u16 *destreg, *srcreg; - uint srcoffset; - u16 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - /* - * Clean up, and reset all the R_xSP pointers to the correct - * locations. This is about 3x too much overhead (doing all the - * segreg ptrs when only one is needed, but this instruction - * *cannot* be that common, and this isn't too much work anyway. - */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u16 *destreg, *srcreg; + uint srcoffset; + u16 srcval; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destreg = decode_rm_seg_register(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_word(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } else { /* register to register */ + destreg = decode_rm_seg_register(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + /* + * Clean up, and reset all the R_xSP pointers to the correct + * locations. This is about 3x too much overhead (doing all the + * segreg ptrs when only one is needed, but this instruction + * *cannot* be that common, and this isn't too much work anyway. + */ + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6658,94 +2138,52 @@ Handles opcode 0x8f ****************************************************************************/ void x86emuOp_pop_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("POP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - if (rh != 0) { - DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n"); - HALT_SYS(); - } - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_long(); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_word(); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_long(); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_word(); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_long(); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_word(); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = pop_long(); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = pop_word(); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("POP\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (rh != 0) { + DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n"); + HALT_SYS(); + } + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = pop_long(); + store_data_long(destoffset, destval); + } else { + u16 destval; + + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = pop_word(); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = pop_long(); + } else { + u16 *destreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = pop_word(); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6754,207 +2192,46 @@ Handles opcode 0x90 ****************************************************************************/ void x86emuOp_nop(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("NOP\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("NOP\n"); + TRACE_AND_STEP(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** REMARKS: -Handles opcode 0x91 +Handles opcode 0x91-0x97 ****************************************************************************/ -void x86emuOp_xchg_word_AX_CX(u8 X86EMU_UNUSED(op1)) +void x86emuOp_xchg_word_AX_register(u8 X86EMU_UNUSED(op1)) { - u32 tmp; + u32 tmp; - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,ECX\n"); - } else { - DECODE_PRINTF("XCHG\tAX,CX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_ECX; - M.x86.R_ECX = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_CX; - M.x86.R_CX = (u16) tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} + op1 &= 0x7; -/**************************************************************************** -REMARKS: -Handles opcode 0x92 -****************************************************************************/ -void x86emuOp_xchg_word_AX_DX(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; + START_OF_INSTR(); - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EDX\n"); - } else { - DECODE_PRINTF("XCHG\tAX,DX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EDX; - M.x86.R_EDX = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_DX; - M.x86.R_DX = (u16) tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x93 -****************************************************************************/ -void x86emuOp_xchg_word_AX_BX(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EBX\n"); - } else { - DECODE_PRINTF("XCHG\tAX,BX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EBX; - M.x86.R_EBX = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_BX; - M.x86.R_BX = (u16) tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x94 -****************************************************************************/ -void x86emuOp_xchg_word_AX_SP(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,ESP\n"); - } else { - DECODE_PRINTF("XCHG\tAX,SP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_ESP; - M.x86.R_ESP = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_SP; - M.x86.R_SP = (u16) tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x95 -****************************************************************************/ -void x86emuOp_xchg_word_AX_BP(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EBP\n"); - } else { - DECODE_PRINTF("XCHG\tAX,BP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EBP; - M.x86.R_EBP = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_BP; - M.x86.R_BP = (u16) tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x96 -****************************************************************************/ -void x86emuOp_xchg_word_AX_SI(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,ESI\n"); - } else { - DECODE_PRINTF("XCHG\tAX,SI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_ESI; - M.x86.R_ESI = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_SI; - M.x86.R_SI = (u16) tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x97 -****************************************************************************/ -void x86emuOp_xchg_word_AX_DI(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EDI\n"); - } else { - DECODE_PRINTF("XCHG\tAX,DI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EDI; - M.x86.R_EDI = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_DI; - M.x86.R_DI = (u16) tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *reg32; + DECODE_PRINTF("XCHG\tEAX,"); + reg32 = DECODE_RM_LONG_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = M.x86.R_EAX; + M.x86.R_EAX = *reg32; + *reg32 = tmp; + } else { + u16 *reg16; + DECODE_PRINTF("XCHG\tAX,"); + reg16 = DECODE_RM_WORD_REGISTER(op1); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + tmp = M.x86.R_AX; + M.x86.R_EAX = *reg16; + *reg16 = (u16)tmp; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6963,28 +2240,28 @@ Handles opcode 0x98 ****************************************************************************/ void x86emuOp_cbw(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CWDE\n"); - } else { - DECODE_PRINTF("CBW\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - if (M.x86.R_AX & 0x8000) { - M.x86.R_EAX |= 0xffff0000; - } else { - M.x86.R_EAX &= 0x0000ffff; - } - } else { - if (M.x86.R_AL & 0x80) { - M.x86.R_AH = 0xff; - } else { - M.x86.R_AH = 0x0; - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("CWDE\n"); + } else { + DECODE_PRINTF("CBW\n"); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + if (M.x86.R_AX & 0x8000) { + M.x86.R_EAX |= 0xffff0000; + } else { + M.x86.R_EAX &= 0x0000ffff; + } + } else { + if (M.x86.R_AL & 0x80) { + M.x86.R_AH = 0xff; + } else { + M.x86.R_AH = 0x0; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -6993,29 +2270,29 @@ Handles opcode 0x99 ****************************************************************************/ void x86emuOp_cwd(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CDQ\n"); - } else { - DECODE_PRINTF("CWD\n"); - } - DECODE_PRINTF("CWD\n"); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - if (M.x86.R_EAX & 0x80000000) { - M.x86.R_EDX = 0xffffffff; - } else { - M.x86.R_EDX = 0x0; - } - } else { - if (M.x86.R_AX & 0x8000) { - M.x86.R_DX = 0xffff; - } else { - M.x86.R_DX = 0x0; - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("CDQ\n"); + } else { + DECODE_PRINTF("CWD\n"); + } + DECODE_PRINTF("CWD\n"); + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + if (M.x86.R_EAX & 0x80000000) { + M.x86.R_EDX = 0xffffffff; + } else { + M.x86.R_EDX = 0x0; + } + } else { + if (M.x86.R_AX & 0x8000) { + M.x86.R_DX = 0xffff; + } else { + M.x86.R_DX = 0x0; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7024,9 +2301,9 @@ Handles opcode 0x9a ****************************************************************************/ void x86emuOp_call_far_IMM(u8 X86EMU_UNUSED(op1)) { - u16 farseg, faroff; + u16 farseg, faroff; - START_OF_INSTR(); + START_OF_INSTR(); DECODE_PRINTF("CALL\t"); faroff = fetch_word_imm(); farseg = fetch_word_imm(); @@ -7034,19 +2311,19 @@ void x86emuOp_call_far_IMM(u8 X86EMU_UNUSED(op1)) DECODE_PRINTF2("%04x\n", faroff); CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, farseg, faroff, "FAR "); - /* XXX - * - * Hooked interrupt vectors calling into our "BIOS" will cause - * problems unless all intersegment stuff is checked for BIOS - * access. Check needed here. For moment, let it alone. - */ - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = farseg; - push_word(M.x86.R_IP); - M.x86.R_IP = faroff; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* XXX + * + * Hooked interrupt vectors calling into our "BIOS" will cause + * problems unless all intersegment stuff is checked for BIOS + * access. Check needed here. For moment, let it alone. + */ + TRACE_AND_STEP(); + push_word(M.x86.R_CS); + M.x86.R_CS = farseg; + push_word(M.x86.R_IP); + M.x86.R_IP = faroff; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7055,12 +2332,12 @@ Handles opcode 0x9b ****************************************************************************/ void x86emuOp_wait(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("WAIT"); - TRACE_AND_STEP(); - /* NADA. */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("WAIT"); + TRACE_AND_STEP(); + /* NADA. */ + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7069,25 +2346,25 @@ Handles opcode 0x9c ****************************************************************************/ void x86emuOp_pushf_word(u8 X86EMU_UNUSED(op1)) { - u32 flags; + u32 flags; - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSHFD\n"); - } else { - DECODE_PRINTF("PUSHF\n"); - } - TRACE_AND_STEP(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("PUSHFD\n"); + } else { + DECODE_PRINTF("PUSHF\n"); + } + TRACE_AND_STEP(); - /* clear out *all* bits not representing flags, and turn on real bits */ - flags = (M.x86.R_EFLG & F_MSK) | F_ALWAYS_ON; - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(flags); - } else { - push_word((u16) flags); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* clear out *all* bits not representing flags, and turn on real bits */ + flags = (M.x86.R_EFLG & F_MSK) | F_ALWAYS_ON; + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + push_long(flags); + } else { + push_word((u16)flags); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7096,20 +2373,20 @@ Handles opcode 0x9d ****************************************************************************/ void x86emuOp_popf_word(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POPFD\n"); - } else { - DECODE_PRINTF("POPF\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EFLG = pop_long(); - } else { - M.x86.R_FLG = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("POPFD\n"); + } else { + DECODE_PRINTF("POPF\n"); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_EFLG = pop_long(); + } else { + M.x86.R_FLG = pop_word(); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7118,15 +2395,15 @@ Handles opcode 0x9e ****************************************************************************/ void x86emuOp_sahf(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("SAHF\n"); - TRACE_AND_STEP(); - /* clear the lower bits of the flag register */ - M.x86.R_FLG &= 0xffffff00; - /* or in the AH register into the flags register */ - M.x86.R_FLG |= M.x86.R_AH; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("SAHF\n"); + TRACE_AND_STEP(); + /* clear the lower bits of the flag register */ + M.x86.R_FLG &= 0xffffff00; + /* or in the AH register into the flags register */ + M.x86.R_FLG |= M.x86.R_AH; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7135,15 +2412,15 @@ Handles opcode 0x9f ****************************************************************************/ void x86emuOp_lahf(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("LAHF\n"); - TRACE_AND_STEP(); - M.x86.R_AH = (u8) (M.x86.R_FLG & 0xff); - /*undocumented TC++ behavior??? Nope. It's documented, but - you have too look real hard to notice it. */ - M.x86.R_AH |= 0x2; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("LAHF\n"); + TRACE_AND_STEP(); + M.x86.R_AH = (u8)(M.x86.R_FLG & 0xff); + /*undocumented TC++ behavior??? Nope. It's documented, but + you have too look real hard to notice it. */ + M.x86.R_AH |= 0x2; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7152,16 +2429,16 @@ Handles opcode 0xa0 ****************************************************************************/ void x86emuOp_mov_AL_M_IMM(u8 X86EMU_UNUSED(op1)) { - u16 offset; + u16 offset; - START_OF_INSTR(); - DECODE_PRINTF("MOV\tAL,"); - offset = fetch_word_imm(); - DECODE_PRINTF2("[%04x]\n", offset); - TRACE_AND_STEP(); - M.x86.R_AL = fetch_data_byte(offset); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("MOV\tAL,"); + offset = fetch_word_imm(); + DECODE_PRINTF2("[%04x]\n", offset); + TRACE_AND_STEP(); + M.x86.R_AL = fetch_data_byte(offset); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7170,23 +2447,23 @@ Handles opcode 0xa1 ****************************************************************************/ void x86emuOp_mov_AX_M_IMM(u8 X86EMU_UNUSED(op1)) { - u16 offset; + u16 offset; - START_OF_INSTR(); - offset = fetch_word_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("MOV\tEAX,[%04x]\n", offset); - } else { - DECODE_PRINTF2("MOV\tAX,[%04x]\n", offset); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = fetch_data_long(offset); - } else { - M.x86.R_AX = fetch_data_word(offset); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + offset = fetch_word_imm(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF2("MOV\tEAX,[%04x]\n", offset); + } else { + DECODE_PRINTF2("MOV\tAX,[%04x]\n", offset); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_EAX = fetch_data_long(offset); + } else { + M.x86.R_AX = fetch_data_word(offset); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7195,16 +2472,16 @@ Handles opcode 0xa2 ****************************************************************************/ void x86emuOp_mov_M_AL_IMM(u8 X86EMU_UNUSED(op1)) { - u16 offset; + u16 offset; - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - offset = fetch_word_imm(); - DECODE_PRINTF2("[%04x],AL\n", offset); - TRACE_AND_STEP(); - store_data_byte(offset, M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + offset = fetch_word_imm(); + DECODE_PRINTF2("[%04x],AL\n", offset); + TRACE_AND_STEP(); + store_data_byte(offset, M.x86.R_AL); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7213,23 +2490,23 @@ Handles opcode 0xa3 ****************************************************************************/ void x86emuOp_mov_M_AX_IMM(u8 X86EMU_UNUSED(op1)) { - u16 offset; + u16 offset; - START_OF_INSTR(); - offset = fetch_word_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("MOV\t[%04x],EAX\n", offset); - } else { - DECODE_PRINTF2("MOV\t[%04x],AX\n", offset); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - store_data_long(offset, M.x86.R_EAX); - } else { - store_data_word(offset, M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + offset = fetch_word_imm(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF2("MOV\t[%04x],EAX\n", offset); + } else { + DECODE_PRINTF2("MOV\t[%04x],AX\n", offset); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + store_data_long(offset, M.x86.R_EAX); + } else { + store_data_word(offset, M.x86.R_AX); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7238,33 +2515,33 @@ Handles opcode 0xa4 ****************************************************************************/ void x86emuOp_movs_byte(u8 X86EMU_UNUSED(op1)) { - u8 val; - u32 count; - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("MOVS\tBYTE\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - val = fetch_data_byte(M.x86.R_SI); - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, val); - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + u8 val; + u32 count; + int inc; + + START_OF_INSTR(); + DECODE_PRINTF("MOVS\tBYTE\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -1; + else + inc = 1; + TRACE_AND_STEP(); + count = 1; + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* move them until CX is ZERO. */ + count = M.x86.R_CX; + M.x86.R_CX = 0; + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } + while (count--) { + val = fetch_data_byte(M.x86.R_SI); + store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, val); + M.x86.R_SI += inc; + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7273,46 +2550,46 @@ Handles opcode 0xa5 ****************************************************************************/ void x86emuOp_movs_word(u8 X86EMU_UNUSED(op1)) { - u32 val; - int inc; - u32 count; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOVS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("MOVS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long(M.x86.R_SI); - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, val); - } else { - val = fetch_data_word(M.x86.R_SI); - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, (u16) val); - } - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + u32 val; + int inc; + u32 count; + + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("MOVS\tDWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -4; + else + inc = 4; + } else { + DECODE_PRINTF("MOVS\tWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -2; + else + inc = 2; + } + TRACE_AND_STEP(); + count = 1; + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* move them until CX is ZERO. */ + count = M.x86.R_CX; + M.x86.R_CX = 0; + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } + while (count--) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + val = fetch_data_long(M.x86.R_SI); + store_data_long_abs(M.x86.R_ES, M.x86.R_DI, val); + } else { + val = fetch_data_word(M.x86.R_SI); + store_data_word_abs(M.x86.R_ES, M.x86.R_DI, (u16)val); + } + M.x86.R_SI += inc; + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7321,54 +2598,40 @@ Handles opcode 0xa6 ****************************************************************************/ void x86emuOp_cmps_byte(u8 X86EMU_UNUSED(op1)) { - s8 val1, val2; - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("CMPS\tBYTE\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val1 = fetch_data_byte(M.x86.R_SI); - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(val1, val2); - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val1 = fetch_data_byte(M.x86.R_SI); - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(val1, val2); - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - val1 = fetch_data_byte(M.x86.R_SI); - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(val1, val2); - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + s8 val1, val2; + int inc; + + START_OF_INSTR(); + DECODE_PRINTF("CMPS\tBYTE\n"); + TRACE_AND_STEP(); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -1; + else + inc = 1; + + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* REPE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + val1 = fetch_data_byte(M.x86.R_SI); + val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); + cmp_byte(val1, val2); + M.x86.R_CX -= 1; + M.x86.R_SI += inc; + M.x86.R_DI += inc; + if ( (M.x86.mode & SYSMODE_PREFIX_REPE) && (ACCESS_FLAG(F_ZF) == 0) ) break; + if ( (M.x86.mode & SYSMODE_PREFIX_REPNE) && ACCESS_FLAG(F_ZF) ) break; + } + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } else { + val1 = fetch_data_byte(M.x86.R_SI); + val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); + cmp_byte(val1, val2); + M.x86.R_SI += inc; + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7377,79 +2640,56 @@ Handles opcode 0xa7 ****************************************************************************/ void x86emuOp_cmps_word(u8 X86EMU_UNUSED(op1)) { - u32 val1, val2; - int inc; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CMPS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("CMPS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val1 = fetch_data_long(M.x86.R_SI); - val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(val1, val2); - } else { - val1 = fetch_data_word(M.x86.R_SI); - val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word((u16) val1, (u16) val2); - } - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val1 = fetch_data_long(M.x86.R_SI); - val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(val1, val2); - } else { - val1 = fetch_data_word(M.x86.R_SI); - val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word((u16) val1, (u16) val2); - } - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val1 = fetch_data_long(M.x86.R_SI); - val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(val1, val2); - } else { - val1 = fetch_data_word(M.x86.R_SI); - val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word((u16) val1, (u16) val2); - } - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + u32 val1,val2; + int inc; + + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("CMPS\tDWORD\n"); + inc = 4; + } else { + DECODE_PRINTF("CMPS\tWORD\n"); + inc = 2; + } + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -inc; + + TRACE_AND_STEP(); + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* REPE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + val1 = fetch_data_long(M.x86.R_SI); + val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); + cmp_long(val1, val2); + } else { + val1 = fetch_data_word(M.x86.R_SI); + val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); + cmp_word((u16)val1, (u16)val2); + } + M.x86.R_CX -= 1; + M.x86.R_SI += inc; + M.x86.R_DI += inc; + if ( (M.x86.mode & SYSMODE_PREFIX_REPE) && ACCESS_FLAG(F_ZF) == 0 ) break; + if ( (M.x86.mode & SYSMODE_PREFIX_REPNE) && ACCESS_FLAG(F_ZF) ) break; + } + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } else { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + val1 = fetch_data_long(M.x86.R_SI); + val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); + cmp_long(val1, val2); + } else { + val1 = fetch_data_word(M.x86.R_SI); + val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); + cmp_word((u16)val1, (u16)val2); + } + M.x86.R_SI += inc; + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7458,16 +2698,16 @@ Handles opcode 0xa8 ****************************************************************************/ void x86emuOp_test_AL_IMM(u8 X86EMU_UNUSED(op1)) { - int imm; + int imm; - START_OF_INSTR(); - DECODE_PRINTF("TEST\tAL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%04x\n", imm); - TRACE_AND_STEP(); - test_byte(M.x86.R_AL, (u8) imm); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("TEST\tAL,"); + imm = fetch_byte_imm(); + DECODE_PRINTF2("%04x\n", imm); + TRACE_AND_STEP(); + test_byte(M.x86.R_AL, (u8)imm); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7476,25 +2716,25 @@ Handles opcode 0xa9 ****************************************************************************/ void x86emuOp_test_AX_IMM(u8 X86EMU_UNUSED(op1)) { - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("TEST\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("TEST\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - test_long(M.x86.R_EAX, srcval); - } else { - test_word(M.x86.R_AX, (u16) srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + u32 srcval; + + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("TEST\tEAX,"); + srcval = fetch_long_imm(); + } else { + DECODE_PRINTF("TEST\tAX,"); + srcval = fetch_word_imm(); + } + DECODE_PRINTF2("%x\n", srcval); + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + test_long(M.x86.R_EAX, srcval); + } else { + test_word(M.x86.R_AX, (u16)srcval); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7503,30 +2743,30 @@ Handles opcode 0xaa ****************************************************************************/ void x86emuOp_stos_byte(u8 X86EMU_UNUSED(op1)) { - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("STOS\tBYTE\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - TRACE_AND_STEP(); - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL); - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL); - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int inc; + + START_OF_INSTR(); + DECODE_PRINTF("STOS\tBYTE\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -1; + else + inc = 1; + TRACE_AND_STEP(); + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL); + M.x86.R_CX -= 1; + M.x86.R_DI += inc; + } + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } else { + store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL); + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7535,42 +2775,42 @@ Handles opcode 0xab ****************************************************************************/ void x86emuOp_stos_word(u8 X86EMU_UNUSED(op1)) { - int inc; - u32 count; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("STOS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("STOS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_EAX); - } else { - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AX); - } - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int inc; + u32 count; + + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("STOS\tDWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -4; + else + inc = 4; + } else { + DECODE_PRINTF("STOS\tWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -2; + else + inc = 2; + } + TRACE_AND_STEP(); + count = 1; + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* move them until CX is ZERO. */ + count = M.x86.R_CX; + M.x86.R_CX = 0; + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } + while (count--) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + store_data_long_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_EAX); + } else { + store_data_word_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AX); + } + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7579,30 +2819,30 @@ Handles opcode 0xac ****************************************************************************/ void x86emuOp_lods_byte(u8 X86EMU_UNUSED(op1)) { - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("LODS\tBYTE\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - M.x86.R_AL = fetch_data_byte(M.x86.R_SI); - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - M.x86.R_AL = fetch_data_byte(M.x86.R_SI); - M.x86.R_SI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int inc; + + START_OF_INSTR(); + DECODE_PRINTF("LODS\tBYTE\n"); + TRACE_AND_STEP(); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -1; + else + inc = 1; + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + M.x86.R_AL = fetch_data_byte(M.x86.R_SI); + M.x86.R_CX -= 1; + M.x86.R_SI += inc; + } + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } else { + M.x86.R_AL = fetch_data_byte(M.x86.R_SI); + M.x86.R_SI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7611,42 +2851,42 @@ Handles opcode 0xad ****************************************************************************/ void x86emuOp_lods_word(u8 X86EMU_UNUSED(op1)) { - int inc; - u32 count; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("LODS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("LODS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = fetch_data_long(M.x86.R_SI); - } else { - M.x86.R_AX = fetch_data_word(M.x86.R_SI); - } - M.x86.R_SI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int inc; + u32 count; + + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("LODS\tDWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -4; + else + inc = 4; + } else { + DECODE_PRINTF("LODS\tWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -2; + else + inc = 2; + } + TRACE_AND_STEP(); + count = 1; + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* move them until CX is ZERO. */ + count = M.x86.R_CX; + M.x86.R_CX = 0; + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } + while (count--) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_EAX = fetch_data_long(M.x86.R_SI); + } else { + M.x86.R_AX = fetch_data_word(M.x86.R_SI); + } + M.x86.R_SI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7655,47 +2895,47 @@ Handles opcode 0xae ****************************************************************************/ void x86emuOp_scas_byte(u8 X86EMU_UNUSED(op1)) { - s8 val2; - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("SCAS\tBYTE\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(M.x86.R_AL, val2); - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(M.x86.R_AL, val2); - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(M.x86.R_AL, val2); - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + s8 val2; + int inc; + + START_OF_INSTR(); + DECODE_PRINTF("SCAS\tBYTE\n"); + TRACE_AND_STEP(); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -1; + else + inc = 1; + if (M.x86.mode & SYSMODE_PREFIX_REPE) { + /* REPE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); + cmp_byte(M.x86.R_AL, val2); + M.x86.R_CX -= 1; + M.x86.R_DI += inc; + if (ACCESS_FLAG(F_ZF) == 0) + break; + } + M.x86.mode &= ~SYSMODE_PREFIX_REPE; + } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { + /* REPNE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); + cmp_byte(M.x86.R_AL, val2); + M.x86.R_CX -= 1; + M.x86.R_DI += inc; + if (ACCESS_FLAG(F_ZF)) + break; /* zero flag set means equal */ + } + M.x86.mode &= ~SYSMODE_PREFIX_REPNE; + } else { + val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); + cmp_byte(M.x86.R_AL, val2); + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -7704,699 +2944,299 @@ Handles opcode 0xaf ****************************************************************************/ void x86emuOp_scas_word(u8 X86EMU_UNUSED(op1)) { - int inc; - u32 val; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("SCAS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("SCAS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(M.x86.R_EAX, val); - } else { - val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word(M.x86.R_AX, (u16) val); - } - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(M.x86.R_EAX, val); - } else { - val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word(M.x86.R_AX, (u16) val); - } - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(M.x86.R_EAX, val); - } else { - val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word(M.x86.R_AX, (u16) val); - } - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb0 -****************************************************************************/ -void x86emuOp_mov_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tAL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_AL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int inc; + u32 val; + + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("SCAS\tDWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -4; + else + inc = 4; + } else { + DECODE_PRINTF("SCAS\tWORD\n"); + if (ACCESS_FLAG(F_DF)) /* down */ + inc = -2; + else + inc = 2; + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_REPE) { + /* REPE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); + cmp_long(M.x86.R_EAX, val); + } else { + val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); + cmp_word(M.x86.R_AX, (u16)val); + } + M.x86.R_CX -= 1; + M.x86.R_DI += inc; + if (ACCESS_FLAG(F_ZF) == 0) + break; + } + M.x86.mode &= ~SYSMODE_PREFIX_REPE; + } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { + /* REPNE */ + /* move them until CX is ZERO. */ + while (M.x86.R_CX != 0) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); + cmp_long(M.x86.R_EAX, val); + } else { + val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); + cmp_word(M.x86.R_AX, (u16)val); + } + M.x86.R_CX -= 1; + M.x86.R_DI += inc; + if (ACCESS_FLAG(F_ZF)) + break; /* zero flag set means equal */ + } + M.x86.mode &= ~SYSMODE_PREFIX_REPNE; + } else { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); + cmp_long(M.x86.R_EAX, val); + } else { + val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); + cmp_word(M.x86.R_AX, (u16)val); + } + M.x86.R_DI += inc; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcode 0xb0 - 0xb7 +****************************************************************************/ +void x86emuOp_mov_byte_register_IMM(u8 op1) +{ + u8 imm, *ptr; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + ptr = DECODE_RM_BYTE_REGISTER(op1 & 0x7); + DECODE_PRINTF(","); + imm = fetch_byte_imm(); + DECODE_PRINTF2("%x\n", imm); + TRACE_AND_STEP(); + *ptr = imm; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); +} + +/**************************************************************************** +REMARKS: +Handles opcode 0xb8 - 0xbf +****************************************************************************/ +void x86emuOp_mov_word_register_IMM(u8 X86EMU_UNUSED(op1)) +{ + u32 srcval; + + op1 &= 0x7; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *reg32; + reg32 = DECODE_RM_LONG_REGISTER(op1); + srcval = fetch_long_imm(); + DECODE_PRINTF2(",%x\n", srcval); + TRACE_AND_STEP(); + *reg32 = srcval; + } else { + u16 *reg16; + reg16 = DECODE_RM_WORD_REGISTER(op1); + srcval = fetch_word_imm(); + DECODE_PRINTF2(",%x\n", srcval); + TRACE_AND_STEP(); + *reg16 = (u16)srcval; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** REMARKS: -Handles opcode 0xb1 -****************************************************************************/ -void x86emuOp_mov_byte_CL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tCL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_CL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb2 -****************************************************************************/ -void x86emuOp_mov_byte_DL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tDL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_DL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb3 -****************************************************************************/ -void x86emuOp_mov_byte_BL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tBL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_BL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb4 -****************************************************************************/ -void x86emuOp_mov_byte_AH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tAH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_AH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb5 -****************************************************************************/ -void x86emuOp_mov_byte_CH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tCH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_CH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb6 -****************************************************************************/ -void x86emuOp_mov_byte_DH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tDH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_DH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb7 -****************************************************************************/ -void x86emuOp_mov_byte_BH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tBH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_BH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb8 -****************************************************************************/ -void x86emuOp_mov_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = srcval; - } else { - M.x86.R_AX = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb9 -****************************************************************************/ -void x86emuOp_mov_word_CX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tECX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tCX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = srcval; - } else { - M.x86.R_CX = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xba -****************************************************************************/ -void x86emuOp_mov_word_DX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEDX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tDX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = srcval; - } else { - M.x86.R_DX = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbb -****************************************************************************/ -void x86emuOp_mov_word_BX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEBX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tBX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = srcval; - } else { - M.x86.R_BX = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbc -****************************************************************************/ -void x86emuOp_mov_word_SP_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tESP,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tSP,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = srcval; - } else { - M.x86.R_SP = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbd -****************************************************************************/ -void x86emuOp_mov_word_BP_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEBP,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tBP,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = srcval; - } else { - M.x86.R_BP = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbe -****************************************************************************/ -void x86emuOp_mov_word_SI_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tESI,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tSI,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = srcval; - } else { - M.x86.R_SI = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbf -****************************************************************************/ -void x86emuOp_mov_word_DI_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEDI,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tDI,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = srcval; - } else { - M.x86.R_DI = (u16) srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/* used by opcodes c0, d0, and d2. */ -static u8(*opcD0_byte_operation[]) (u8 d, u8 s) = { - rol_byte, ror_byte, rcl_byte, rcr_byte, shl_byte, shr_byte, shl_byte, /* sal_byte === shl_byte by definition */ -sar_byte,}; - -/**************************************************************************** -REMARKS: Handles opcode 0xc0 ****************************************************************************/ void x86emuOp_opcC0_byte_RM_MEM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + u8 *destreg; + uint destoffset; + u8 destval; + u8 amt; + + /* + * Yet another weirdo special case instruction format. Part of + * the opcode held below in "RH". Doubly nested case would + * result, except that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + + switch (rh) { + case 0: + DECODE_PRINTF("ROL\t"); + break; + case 1: + DECODE_PRINTF("ROR\t"); + break; + case 2: + DECODE_PRINTF("RCL\t"); + break; + case 3: + DECODE_PRINTF("RCR\t"); + break; + case 4: + DECODE_PRINTF("SHL\t"); + break; + case 5: + DECODE_PRINTF("SHR\t"); + break; + case 6: + DECODE_PRINTF("SAL\t"); + break; + case 7: + DECODE_PRINTF("SAR\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (*destreg, amt); - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* know operation, decode the mod byte to find the addressing + mode. */ + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + amt = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", amt); + destval = fetch_data_byte(destoffset); + TRACE_AND_STEP(); + destval = (*opcD0_byte_operation[rh]) (destval, amt); + store_data_byte(destoffset, destval); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + amt = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", amt); + TRACE_AND_STEP(); + destval = (*opcD0_byte_operation[rh]) (*destreg, amt); + *destreg = destval; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } -/* used by opcodes c1, d1, and d3. */ -static u16(*opcD1_word_operation[]) (u16 s, u8 d) = { - rol_word, ror_word, rcl_word, rcr_word, shl_word, shr_word, shl_word, /* sal_byte === shl_byte by definition */ -sar_word,}; - -/* used by opcodes c1, d1, and d3. */ -static u32(*opcD1_long_operation[]) (u32 s, u8 d) = { - rol_long, ror_long, rcl_long, rcr_long, shl_long, shr_long, shl_long, /* sal_byte === shl_byte by definition */ -sar_long,}; - /**************************************************************************** REMARKS: Handles opcode 0xc1 ****************************************************************************/ void x86emuOp_opcC1_word_RM_MEM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + uint destoffset; + u8 amt; + + /* + * Yet another weirdo special case instruction format. Part of + * the opcode held below in "RH". Doubly nested case would + * result, except that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + + switch (rh) { + case 0: + DECODE_PRINTF("ROL\t"); + break; + case 1: + DECODE_PRINTF("ROR\t"); + break; + case 2: + DECODE_PRINTF("RCL\t"); + break; + case 3: + DECODE_PRINTF("RCR\t"); + break; + case 4: + DECODE_PRINTF("SHL\t"); + break; + case 5: + DECODE_PRINTF("SHR\t"); + break; + case 6: + DECODE_PRINTF("SAL\t"); + break; + case 7: + DECODE_PRINTF("SAR\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - TRACE_AND_STEP(); - *destreg = (*opcD1_long_operation[rh]) (*destreg, amt); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - TRACE_AND_STEP(); - *destreg = (*opcD1_word_operation[rh]) (*destreg, amt); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* know operation, decode the mod byte to find the addressing + mode. */ + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + + DECODE_PRINTF("DWORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + amt = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", amt); + destval = fetch_data_long(destoffset); + TRACE_AND_STEP(); + destval = (*opcD1_long_operation[rh]) (destval, amt); + store_data_long(destoffset, destval); + } else { + u16 destval; + + DECODE_PRINTF("WORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + amt = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", amt); + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + destval = (*opcD1_word_operation[rh]) (destval, amt); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + amt = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", amt); + TRACE_AND_STEP(); + *destreg = (*opcD1_long_operation[rh]) (*destreg, amt); + } else { + u16 *destreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + amt = fetch_byte_imm(); + DECODE_PRINTF2(",%x\n", amt); + TRACE_AND_STEP(); + *destreg = (*opcD1_word_operation[rh]) (*destreg, amt); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8405,18 +3245,18 @@ Handles opcode 0xc2 ****************************************************************************/ void x86emuOp_ret_near_IMM(u8 X86EMU_UNUSED(op1)) { - u16 imm; + u16 imm; - START_OF_INSTR(); - DECODE_PRINTF("RET\t"); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - RETURN_TRACE("RET", M.x86.saved_cs, M.x86.saved_ip); + START_OF_INSTR(); + DECODE_PRINTF("RET\t"); + imm = fetch_word_imm(); + DECODE_PRINTF2("%x\n", imm); + RETURN_TRACE("RET",M.x86.saved_cs,M.x86.saved_ip); TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_SP += imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + M.x86.R_IP = pop_word(); + M.x86.R_SP += imm; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8425,13 +3265,13 @@ Handles opcode 0xc3 ****************************************************************************/ void x86emuOp_ret_near(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("RET\n"); - RETURN_TRACE("RET", M.x86.saved_cs, M.x86.saved_ip); + START_OF_INSTR(); + DECODE_PRINTF("RET\n"); + RETURN_TRACE("RET",M.x86.saved_cs,M.x86.saved_ip); TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + M.x86.R_IP = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8440,47 +3280,26 @@ Handles opcode 0xc4 ****************************************************************************/ void x86emuOp_les_R_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LES\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_ES = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_ES = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_ES = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rh, rl; + u16 *dstreg; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("LES\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + dstreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *dstreg = fetch_data_word(srcoffset); + M.x86.R_ES = fetch_data_word(srcoffset + 2); + } + /* else UNDEFINED! register to register */ + + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8489,47 +3308,25 @@ Handles opcode 0xc5 ****************************************************************************/ void x86emuOp_lds_R_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LDS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_DS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_DS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_DS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rh, rl; + u16 *dstreg; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("LDS\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + dstreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *dstreg = fetch_data_word(srcoffset); + M.x86.R_DS = fetch_data_word(srcoffset + 2); + } + /* else UNDEFINED! */ + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8538,53 +3335,34 @@ Handles opcode 0xc6 ****************************************************************************/ void x86emuOp_mov_byte_RM_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - if (rh != 0) { - DECODE_PRINTF("ILLEGAL DECODE OF OPCODE c6\n"); - HALT_SYS(); - } - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - store_data_byte(destoffset, imm); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - store_data_byte(destoffset, imm); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - store_data_byte(destoffset, imm); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - *destreg = imm; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u8 *destreg; + uint destoffset; + u8 imm; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (rh != 0) { + DECODE_PRINTF("ILLEGAL DECODE OF OPCODE c6\n"); + HALT_SYS(); + } + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%2x\n", imm); + TRACE_AND_STEP(); + store_data_byte(destoffset, imm); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + imm = fetch_byte_imm(); + DECODE_PRINTF2(",%2x\n", imm); + TRACE_AND_STEP(); + *destreg = imm; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8593,104 +3371,59 @@ Handles opcode 0xc7 ****************************************************************************/ void x86emuOp_mov_word_RM_IMM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - if (rh != 0) { - DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n"); - HALT_SYS(); - } - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_long(destoffset, imm); - } else { - u16 imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_word(destoffset, imm); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_long(destoffset, imm); - } else { - u16 imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_word(destoffset, imm); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_long(destoffset, imm); - } else { - u16 imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_word(destoffset, imm); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("MOV\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (rh != 0) { + DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n"); + HALT_SYS(); + } + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 imm; + + DECODE_PRINTF("DWORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + imm = fetch_long_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + store_data_long(destoffset, imm); + } else { + u16 imm; + + DECODE_PRINTF("WORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + imm = fetch_word_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + store_data_word(destoffset, imm); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { u32 *destreg; u32 imm; - destreg = DECODE_RM_LONG_REGISTER(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - *destreg = imm; - } else { + destreg = DECODE_RM_LONG_REGISTER(rl); + imm = fetch_long_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + *destreg = imm; + } else { u16 *destreg; u16 imm; - destreg = DECODE_RM_WORD_REGISTER(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - *destreg = imm; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + destreg = DECODE_RM_WORD_REGISTER(rl); + imm = fetch_word_imm(); + DECODE_PRINTF2(",%x\n", imm); + TRACE_AND_STEP(); + *destreg = imm; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8699,29 +3432,29 @@ Handles opcode 0xc8 ****************************************************************************/ void x86emuOp_enter(u8 X86EMU_UNUSED(op1)) { - u16 local, frame_pointer; - u8 nesting; - int i; - - START_OF_INSTR(); - local = fetch_word_imm(); - nesting = fetch_byte_imm(); - DECODE_PRINTF2("ENTER %x\n", local); - DECODE_PRINTF2(",%x\n", nesting); - TRACE_AND_STEP(); - push_word(M.x86.R_BP); - frame_pointer = M.x86.R_SP; - if (nesting > 0) { - for (i = 1; i < nesting; i++) { - M.x86.R_BP -= 2; - push_word(fetch_data_word_abs(M.x86.R_SS, M.x86.R_BP)); - } - push_word(frame_pointer); - } - M.x86.R_BP = frame_pointer; - M.x86.R_SP = (u16) (M.x86.R_SP - local); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + u16 local,frame_pointer; + u8 nesting; + int i; + + START_OF_INSTR(); + local = fetch_word_imm(); + nesting = fetch_byte_imm(); + DECODE_PRINTF2("ENTER %x\n", local); + DECODE_PRINTF2(",%x\n", nesting); + TRACE_AND_STEP(); + push_word(M.x86.R_BP); + frame_pointer = M.x86.R_SP; + if (nesting > 0) { + for (i = 1; i < nesting; i++) { + M.x86.R_BP -= 2; + push_word(fetch_data_word_abs(M.x86.R_SS, M.x86.R_BP)); + } + push_word(frame_pointer); + } + M.x86.R_BP = frame_pointer; + M.x86.R_SP = (u16)(M.x86.R_SP - local); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8730,13 +3463,13 @@ Handles opcode 0xc9 ****************************************************************************/ void x86emuOp_leave(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("LEAVE\n"); - TRACE_AND_STEP(); - M.x86.R_SP = M.x86.R_BP; - M.x86.R_BP = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("LEAVE\n"); + TRACE_AND_STEP(); + M.x86.R_SP = M.x86.R_BP; + M.x86.R_BP = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8745,19 +3478,19 @@ Handles opcode 0xca ****************************************************************************/ void x86emuOp_ret_far_IMM(u8 X86EMU_UNUSED(op1)) { - u16 imm; + u16 imm; - START_OF_INSTR(); - DECODE_PRINTF("RETF\t"); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - RETURN_TRACE("RETF", M.x86.saved_cs, M.x86.saved_ip); + START_OF_INSTR(); + DECODE_PRINTF("RETF\t"); + imm = fetch_word_imm(); + DECODE_PRINTF2("%x\n", imm); + RETURN_TRACE("RETF",M.x86.saved_cs,M.x86.saved_ip); TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - M.x86.R_SP += imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + M.x86.R_IP = pop_word(); + M.x86.R_CS = pop_word(); + M.x86.R_SP += imm; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8766,14 +3499,14 @@ Handles opcode 0xcb ****************************************************************************/ void x86emuOp_ret_far(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("RETF\n"); - RETURN_TRACE("RETF", M.x86.saved_cs, M.x86.saved_ip); + START_OF_INSTR(); + DECODE_PRINTF("RETF\n"); + RETURN_TRACE("RETF",M.x86.saved_cs,M.x86.saved_ip); TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + M.x86.R_IP = pop_word(); + M.x86.R_CS = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8782,22 +3515,26 @@ Handles opcode 0xcc ****************************************************************************/ void x86emuOp_int3(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("INT 3\n"); - TRACE_AND_STEP(); + u16 tmp; + + START_OF_INSTR(); + DECODE_PRINTF("INT 3\n"); + tmp = (u16) mem_access_word(3 * 4 + 2); + /* access the segment register */ + TRACE_AND_STEP(); if (_X86EMU_intrTab[3]) { - (*_X86EMU_intrTab[3]) (3); - } else { - push_word((u16) M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(3 * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(3 * 4); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + (*_X86EMU_intrTab[3])(3); + } else { + push_word((u16)M.x86.R_FLG); + CLEAR_FLAG(F_IF); + CLEAR_FLAG(F_TF); + push_word(M.x86.R_CS); + M.x86.R_CS = mem_access_word(3 * 4 + 2); + push_word(M.x86.R_IP); + M.x86.R_IP = mem_access_word(3 * 4); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8806,26 +3543,28 @@ Handles opcode 0xcd ****************************************************************************/ void x86emuOp_int_IMM(u8 X86EMU_UNUSED(op1)) { - u8 intnum; + u16 tmp; + u8 intnum; - START_OF_INSTR(); - DECODE_PRINTF("INT\t"); - intnum = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", intnum); - TRACE_AND_STEP(); + START_OF_INSTR(); + DECODE_PRINTF("INT\t"); + intnum = fetch_byte_imm(); + DECODE_PRINTF2("%x\n", intnum); + tmp = mem_access_word(intnum * 4 + 2); + TRACE_AND_STEP(); if (_X86EMU_intrTab[intnum]) { - (*_X86EMU_intrTab[intnum]) (intnum); - } else { - push_word((u16) M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(intnum * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(intnum * 4); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + (*_X86EMU_intrTab[intnum])(intnum); + } else { + push_word((u16)M.x86.R_FLG); + CLEAR_FLAG(F_IF); + CLEAR_FLAG(F_TF); + push_word(M.x86.R_CS); + M.x86.R_CS = mem_access_word(intnum * 4 + 2); + push_word(M.x86.R_IP); + M.x86.R_IP = mem_access_word(intnum * 4); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8834,24 +3573,27 @@ Handles opcode 0xce ****************************************************************************/ void x86emuOp_into(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("INTO\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_OF)) { + u16 tmp; + + START_OF_INSTR(); + DECODE_PRINTF("INTO\n"); + TRACE_AND_STEP(); + if (ACCESS_FLAG(F_OF)) { + tmp = mem_access_word(4 * 4 + 2); if (_X86EMU_intrTab[4]) { - (*_X86EMU_intrTab[4]) (4); - } else { - push_word((u16) M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(4 * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(4 * 4); - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + (*_X86EMU_intrTab[4])(4); + } else { + push_word((u16)M.x86.R_FLG); + CLEAR_FLAG(F_IF); + CLEAR_FLAG(F_TF); + push_word(M.x86.R_CS); + M.x86.R_CS = mem_access_word(4 * 4 + 2); + push_word(M.x86.R_IP); + M.x86.R_IP = mem_access_word(4 * 4); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8860,16 +3602,16 @@ Handles opcode 0xcf ****************************************************************************/ void x86emuOp_iret(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("IRET\n"); + START_OF_INSTR(); + DECODE_PRINTF("IRET\n"); - TRACE_AND_STEP(); + TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - M.x86.R_FLG = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + M.x86.R_IP = pop_word(); + M.x86.R_CS = pop_word(); + M.x86.R_FLG = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8878,92 +3620,71 @@ Handles opcode 0xd0 ****************************************************************************/ void x86emuOp_opcD0_byte_RM_1(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + u8 *destreg; + uint destoffset; + u8 destval; + + /* + * Yet another weirdo special case instruction format. Part of + * the opcode held below in "RH". Doubly nested case would + * result, except that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + switch (rh) { + case 0: + DECODE_PRINTF("ROL\t"); + break; + case 1: + DECODE_PRINTF("ROR\t"); + break; + case 2: + DECODE_PRINTF("RCL\t"); + break; + case 3: + DECODE_PRINTF("RCR\t"); + break; + case 4: + DECODE_PRINTF("SHL\t"); + break; + case 5: + DECODE_PRINTF("SHR\t"); + break; + case 6: + DECODE_PRINTF("SAL\t"); + break; + case 7: + DECODE_PRINTF("SAR\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, 1); - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, 1); - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, 1); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(",1\n"); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (*destreg, 1); - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* know operation, decode the mod byte to find the addressing + mode. */ + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(",1\n"); + destval = fetch_data_byte(destoffset); + TRACE_AND_STEP(); + destval = (*opcD0_byte_operation[rh]) (destval, 1); + store_data_byte(destoffset, destval); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF(",1\n"); + TRACE_AND_STEP(); + destval = (*opcD0_byte_operation[rh]) (*destreg, 1); + *destreg = destval; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -8972,146 +3693,97 @@ Handles opcode 0xd1 ****************************************************************************/ void x86emuOp_opcD1_word_RM_1(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; + int mod, rl, rh; + uint destoffset; - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + /* + * Yet another weirdo special case instruction format. Part of + * the opcode held below in "RH". Doubly nested case would + * result, except that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + switch (rh) { + case 0: + DECODE_PRINTF("ROL\t"); + break; + case 1: + DECODE_PRINTF("ROR\t"); + break; + case 2: + DECODE_PRINTF("RCL\t"); + break; + case 3: + DECODE_PRINTF("RCR\t"); + break; + case 4: + DECODE_PRINTF("SHL\t"); + break; + case 5: + DECODE_PRINTF("SHR\t"); + break; + case 6: + DECODE_PRINTF("SAL\t"); + break; + case 7: + DECODE_PRINTF("SAR\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, 1); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, 1); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, 1); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, 1); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, 1); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, 1); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { + /* know operation, decode the mod byte to find the addressing + mode. */ + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + + DECODE_PRINTF("DWORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(",1\n"); + destval = fetch_data_long(destoffset); + TRACE_AND_STEP(); + destval = (*opcD1_long_operation[rh]) (destval, 1); + store_data_long(destoffset, destval); + } else { + u16 destval; + + DECODE_PRINTF("WORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(",1\n"); + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + destval = (*opcD1_word_operation[rh]) (destval, 1); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { u32 destval; u32 *destreg; - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(",1\n"); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (*destreg, 1); - *destreg = destval; - } else { + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(",1\n"); + TRACE_AND_STEP(); + destval = (*opcD1_long_operation[rh]) (*destreg, 1); + *destreg = destval; + } else { u16 destval; u16 *destreg; - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(",1\n"); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (*destreg, 1); - *destreg = destval; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(",1\n"); + TRACE_AND_STEP(); + destval = (*opcD1_word_operation[rh]) (*destreg, 1); + *destreg = destval; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9120,94 +3792,73 @@ Handles opcode 0xd2 ****************************************************************************/ void x86emuOp_opcD2_byte_RM_CL(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + u8 *destreg; + uint destoffset; + u8 destval; + u8 amt; + + /* + * Yet another weirdo special case instruction format. Part of + * the opcode held below in "RH". Doubly nested case would + * result, except that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + switch (rh) { + case 0: + DECODE_PRINTF("ROL\t"); + break; + case 1: + DECODE_PRINTF("ROR\t"); + break; + case 2: + DECODE_PRINTF("RCL\t"); + break; + case 3: + DECODE_PRINTF("RCR\t"); + break; + case 4: + DECODE_PRINTF("SHL\t"); + break; + case 5: + DECODE_PRINTF("SHR\t"); + break; + case 6: + DECODE_PRINTF("SAL\t"); + break; + case 7: + DECODE_PRINTF("SAR\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - amt = M.x86.R_CL; - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (*destreg, amt); - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* know operation, decode the mod byte to find the addressing + mode. */ + amt = M.x86.R_CL; + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(",CL\n"); + destval = fetch_data_byte(destoffset); + TRACE_AND_STEP(); + destval = (*opcD0_byte_operation[rh]) (destval, amt); + store_data_byte(destoffset, destval); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + destval = (*opcD0_byte_operation[rh]) (*destreg, amt); + *destreg = destval; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9216,144 +3867,95 @@ Handles opcode 0xd3 ****************************************************************************/ void x86emuOp_opcD3_word_RM_CL(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + int mod, rl, rh; + uint destoffset; + u8 amt; + + /* + * Yet another weirdo special case instruction format. Part of + * the opcode held below in "RH". Doubly nested case would + * result, except that the decoded instruction + */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + switch (rh) { + case 0: + DECODE_PRINTF("ROL\t"); + break; + case 1: + DECODE_PRINTF("ROR\t"); + break; + case 2: + DECODE_PRINTF("RCL\t"); + break; + case 3: + DECODE_PRINTF("RCR\t"); + break; + case 4: + DECODE_PRINTF("SHL\t"); + break; + case 5: + DECODE_PRINTF("SHR\t"); + break; + case 6: + DECODE_PRINTF("SAL\t"); + break; + case 7: + DECODE_PRINTF("SAR\t"); + break; + } + } #endif - /* know operation, decode the mod byte to find the addressing - mode. */ - amt = M.x86.R_CL; - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = (*opcD1_long_operation[rh]) (*destreg, amt); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = (*opcD1_word_operation[rh]) (*destreg, amt); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* know operation, decode the mod byte to find the addressing + mode. */ + amt = M.x86.R_CL; + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + + DECODE_PRINTF("DWORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(",CL\n"); + destval = fetch_data_long(destoffset); + TRACE_AND_STEP(); + destval = (*opcD1_long_operation[rh]) (destval, amt); + store_data_long(destoffset, destval); + } else { + u16 destval; + + DECODE_PRINTF("WORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(",CL\n"); + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + destval = (*opcD1_word_operation[rh]) (destval, amt); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + *destreg = (*opcD1_long_operation[rh]) (*destreg, amt); + } else { + u16 *destreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + *destreg = (*opcD1_word_operation[rh]) (*destreg, amt); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9362,21 +3964,21 @@ Handles opcode 0xd4 ****************************************************************************/ void x86emuOp_aam(u8 X86EMU_UNUSED(op1)) { - u8 a; + u8 a; - START_OF_INSTR(); - DECODE_PRINTF("AAM\n"); - a = fetch_byte_imm(); /* this is a stupid encoding. */ - if (a != 10) { - DECODE_PRINTF("ERROR DECODING AAM\n"); - TRACE_REGS(); - HALT_SYS(); - } - TRACE_AND_STEP(); - /* note the type change here --- returning AL and AH in AX. */ - M.x86.R_AX = aam_word(M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("AAM\n"); + a = fetch_byte_imm(); /* this is a stupid encoding. */ + if (a != 10) { + DECODE_PRINTF("ERROR DECODING AAM\n"); + TRACE_REGS(); + HALT_SYS(); + } + TRACE_AND_STEP(); + /* note the type change here --- returning AL and AH in AX. */ + M.x86.R_AX = aam_word(M.x86.R_AL); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9385,15 +3987,15 @@ Handles opcode 0xd5 ****************************************************************************/ void x86emuOp_aad(u8 X86EMU_UNUSED(op1)) { - u8 a; + u8 a; - START_OF_INSTR(); - DECODE_PRINTF("AAD\n"); - a = fetch_byte_imm(); - TRACE_AND_STEP(); - M.x86.R_AX = aad_word(M.x86.R_AX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("AAD\n"); + a = fetch_byte_imm(); + TRACE_AND_STEP(); + M.x86.R_AX = aad_word(M.x86.R_AX); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /* opcode 0xd6 ILLEGAL OPCODE */ @@ -9404,15 +4006,15 @@ Handles opcode 0xd7 ****************************************************************************/ void x86emuOp_xlat(u8 X86EMU_UNUSED(op1)) { - u16 addr; + u16 addr; - START_OF_INSTR(); - DECODE_PRINTF("XLAT\n"); - TRACE_AND_STEP(); - addr = (u16) (M.x86.R_BX + (u8) M.x86.R_AL); - M.x86.R_AL = fetch_data_byte(addr); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("XLAT\n"); + TRACE_AND_STEP(); + addr = (u16)(M.x86.R_BX + (u8)M.x86.R_AL); + M.x86.R_AL = fetch_data_byte(addr); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /* instuctions D8 .. DF are in i87_ops.c */ @@ -9423,19 +4025,19 @@ Handles opcode 0xe0 ****************************************************************************/ void x86emuOp_loopne(u8 X86EMU_UNUSED(op1)) { - s16 ip; + s16 ip; - START_OF_INSTR(); - DECODE_PRINTF("LOOPNE\t"); - ip = (s8) fetch_byte_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_CX -= 1; - if (M.x86.R_CX != 0 && !ACCESS_FLAG(F_ZF)) /* CX != 0 and !ZF */ - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("LOOPNE\t"); + ip = (s8) fetch_byte_imm(); + ip += (s16) M.x86.R_IP; + DECODE_PRINTF2("%04x\n", ip); + TRACE_AND_STEP(); + M.x86.R_CX -= 1; + if (M.x86.R_CX != 0 && !ACCESS_FLAG(F_ZF)) /* CX != 0 and !ZF */ + M.x86.R_IP = ip; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9444,19 +4046,19 @@ Handles opcode 0xe1 ****************************************************************************/ void x86emuOp_loope(u8 X86EMU_UNUSED(op1)) { - s16 ip; + s16 ip; - START_OF_INSTR(); - DECODE_PRINTF("LOOPE\t"); - ip = (s8) fetch_byte_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_CX -= 1; - if (M.x86.R_CX != 0 && ACCESS_FLAG(F_ZF)) /* CX != 0 and ZF */ - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("LOOPE\t"); + ip = (s8) fetch_byte_imm(); + ip += (s16) M.x86.R_IP; + DECODE_PRINTF2("%04x\n", ip); + TRACE_AND_STEP(); + M.x86.R_CX -= 1; + if (M.x86.R_CX != 0 && ACCESS_FLAG(F_ZF)) /* CX != 0 and ZF */ + M.x86.R_IP = ip; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9465,19 +4067,19 @@ Handles opcode 0xe2 ****************************************************************************/ void x86emuOp_loop(u8 X86EMU_UNUSED(op1)) { - s16 ip; + s16 ip; - START_OF_INSTR(); - DECODE_PRINTF("LOOP\t"); - ip = (s8) fetch_byte_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_CX -= 1; - if (M.x86.R_CX != 0) - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("LOOP\t"); + ip = (s8) fetch_byte_imm(); + ip += (s16) M.x86.R_IP; + DECODE_PRINTF2("%04x\n", ip); + TRACE_AND_STEP(); + M.x86.R_CX -= 1; + if (M.x86.R_CX != 0) + M.x86.R_IP = ip; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9486,20 +4088,20 @@ Handles opcode 0xe3 ****************************************************************************/ void x86emuOp_jcxz(u8 X86EMU_UNUSED(op1)) { - u16 target; - s8 offset; + u16 target; + s8 offset; - /* jump to byte offset if overflow flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JCXZ\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (M.x86.R_CX == 0) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* jump to byte offset if overflow flag is set */ + START_OF_INSTR(); + DECODE_PRINTF("JCXZ\t"); + offset = (s8)fetch_byte_imm(); + target = (u16)(M.x86.R_IP + offset); + DECODE_PRINTF2("%x\n", target); + TRACE_AND_STEP(); + if (M.x86.R_CX == 0) + M.x86.R_IP = target; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9508,16 +4110,16 @@ Handles opcode 0xe4 ****************************************************************************/ void x86emuOp_in_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) { - u8 port; + u8 port; - START_OF_INSTR(); - DECODE_PRINTF("IN\t"); + START_OF_INSTR(); + DECODE_PRINTF("IN\t"); port = (u8) fetch_byte_imm(); - DECODE_PRINTF2("%x,AL\n", port); - TRACE_AND_STEP(); - M.x86.R_AL = (*sys_inb) (port); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + DECODE_PRINTF2("%x,AL\n", port); + TRACE_AND_STEP(); + M.x86.R_AL = (*sys_inb)(port); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9526,24 +4128,24 @@ Handles opcode 0xe5 ****************************************************************************/ void x86emuOp_in_word_AX_IMM(u8 X86EMU_UNUSED(op1)) { - u8 port; + u8 port; - START_OF_INSTR(); - DECODE_PRINTF("IN\t"); + START_OF_INSTR(); + DECODE_PRINTF("IN\t"); port = (u8) fetch_byte_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("EAX,%x\n", port); - } else { - DECODE_PRINTF2("AX,%x\n", port); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = (*sys_inl) (port); - } else { - M.x86.R_AX = (*sys_inw) (port); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF2("EAX,%x\n", port); + } else { + DECODE_PRINTF2("AX,%x\n", port); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_EAX = (*sys_inl)(port); + } else { + M.x86.R_AX = (*sys_inw)(port); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9552,16 +4154,16 @@ Handles opcode 0xe6 ****************************************************************************/ void x86emuOp_out_byte_IMM_AL(u8 X86EMU_UNUSED(op1)) { - u8 port; + u8 port; - START_OF_INSTR(); - DECODE_PRINTF("OUT\t"); + START_OF_INSTR(); + DECODE_PRINTF("OUT\t"); port = (u8) fetch_byte_imm(); - DECODE_PRINTF2("%x,AL\n", port); - TRACE_AND_STEP(); - (*sys_outb) (port, M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + DECODE_PRINTF2("%x,AL\n", port); + TRACE_AND_STEP(); + (*sys_outb)(port, M.x86.R_AL); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9570,24 +4172,24 @@ Handles opcode 0xe7 ****************************************************************************/ void x86emuOp_out_word_IMM_AX(u8 X86EMU_UNUSED(op1)) { - u8 port; + u8 port; - START_OF_INSTR(); - DECODE_PRINTF("OUT\t"); + START_OF_INSTR(); + DECODE_PRINTF("OUT\t"); port = (u8) fetch_byte_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("%x,EAX\n", port); - } else { - DECODE_PRINTF2("%x,AX\n", port); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - (*sys_outl) (port, M.x86.R_EAX); - } else { - (*sys_outw) (port, M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF2("%x,EAX\n", port); + } else { + DECODE_PRINTF2("%x,AX\n", port); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + (*sys_outl)(port, M.x86.R_EAX); + } else { + (*sys_outw)(port, M.x86.R_AX); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9596,19 +4198,19 @@ Handles opcode 0xe8 ****************************************************************************/ void x86emuOp_call_near_IMM(u8 X86EMU_UNUSED(op1)) { - s16 ip; + s16 ip; - START_OF_INSTR(); + START_OF_INSTR(); DECODE_PRINTF("CALL\t"); ip = (s16) fetch_word_imm(); - ip += (s16) M.x86.R_IP; /* CHECK SIGN */ - DECODE_PRINTF2("%04x\n", (u16) ip); + ip += (s16) M.x86.R_IP; /* CHECK SIGN */ + DECODE_PRINTF2("%04x\n", ip); CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, ip, ""); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + TRACE_AND_STEP(); + push_word(M.x86.R_IP); + M.x86.R_IP = ip; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9617,23 +4219,17 @@ Handles opcode 0xe9 ****************************************************************************/ void x86emuOp_jump_near_IMM(u8 X86EMU_UNUSED(op1)) { - int ip; - - START_OF_INSTR(); - DECODE_PRINTF("JMP\t"); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - ip = (s32) fetch_long_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", (u16) ip); - } else { - ip = (s16) fetch_word_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", (u16) ip); - } - TRACE_AND_STEP(); - M.x86.R_IP = (u16) ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int ip; + + START_OF_INSTR(); + DECODE_PRINTF("JMP\t"); + ip = (s16)fetch_word_imm(); + ip += (s16)M.x86.R_IP; + DECODE_PRINTF2("%04x\n", ip); + TRACE_AND_STEP(); + M.x86.R_IP = (u16)ip; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9642,19 +4238,19 @@ Handles opcode 0xea ****************************************************************************/ void x86emuOp_jump_far_IMM(u8 X86EMU_UNUSED(op1)) { - u16 cs, ip; + u16 cs, ip; - START_OF_INSTR(); - DECODE_PRINTF("JMP\tFAR "); - ip = fetch_word_imm(); - cs = fetch_word_imm(); - DECODE_PRINTF2("%04x:", cs); - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_IP = ip; - M.x86.R_CS = cs; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("JMP\tFAR "); + ip = fetch_word_imm(); + cs = fetch_word_imm(); + DECODE_PRINTF2("%04x:", cs); + DECODE_PRINTF2("%04x\n", ip); + TRACE_AND_STEP(); + M.x86.R_IP = ip; + M.x86.R_CS = cs; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9663,18 +4259,18 @@ Handles opcode 0xeb ****************************************************************************/ void x86emuOp_jump_byte_IMM(u8 X86EMU_UNUSED(op1)) { - u16 target; - s8 offset; + u16 target; + s8 offset; - START_OF_INSTR(); - DECODE_PRINTF("JMP\t"); - offset = (s8) fetch_byte_imm(); - target = (u16) (M.x86.R_IP + offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("JMP\t"); + offset = (s8)fetch_byte_imm(); + target = (u16)(M.x86.R_IP + offset); + DECODE_PRINTF2("%x\n", target); + TRACE_AND_STEP(); + M.x86.R_IP = target; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9683,12 +4279,12 @@ Handles opcode 0xec ****************************************************************************/ void x86emuOp_in_byte_AL_DX(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("IN\tAL,DX\n"); - TRACE_AND_STEP(); - M.x86.R_AL = (*sys_inb) (M.x86.R_DX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("IN\tAL,DX\n"); + TRACE_AND_STEP(); + M.x86.R_AL = (*sys_inb)(M.x86.R_DX); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9697,20 +4293,20 @@ Handles opcode 0xed ****************************************************************************/ void x86emuOp_in_word_AX_DX(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("IN\tEAX,DX\n"); - } else { - DECODE_PRINTF("IN\tAX,DX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = (*sys_inl) (M.x86.R_DX); - } else { - M.x86.R_AX = (*sys_inw) (M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("IN\tEAX,DX\n"); + } else { + DECODE_PRINTF("IN\tAX,DX\n"); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_EAX = (*sys_inl)(M.x86.R_DX); + } else { + M.x86.R_AX = (*sys_inw)(M.x86.R_DX); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9719,12 +4315,12 @@ Handles opcode 0xee ****************************************************************************/ void x86emuOp_out_byte_DX_AL(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("OUT\tDX,AL\n"); - TRACE_AND_STEP(); - (*sys_outb) (M.x86.R_DX, M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("OUT\tDX,AL\n"); + TRACE_AND_STEP(); + (*sys_outb)(M.x86.R_DX, M.x86.R_AL); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9733,20 +4329,20 @@ Handles opcode 0xef ****************************************************************************/ void x86emuOp_out_word_DX_AX(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("OUT\tDX,EAX\n"); - } else { - DECODE_PRINTF("OUT\tDX,AX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - (*sys_outl) (M.x86.R_DX, M.x86.R_EAX); - } else { - (*sys_outw) (M.x86.R_DX, M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("OUT\tDX,EAX\n"); + } else { + DECODE_PRINTF("OUT\tDX,AX\n"); + } + TRACE_AND_STEP(); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + (*sys_outl)(M.x86.R_DX, M.x86.R_EAX); + } else { + (*sys_outw)(M.x86.R_DX, M.x86.R_AX); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9755,11 +4351,11 @@ Handles opcode 0xf0 ****************************************************************************/ void x86emuOp_lock(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("LOCK:\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("LOCK:\n"); + TRACE_AND_STEP(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /*opcode 0xf1 ILLEGAL OPERATION */ @@ -9770,12 +4366,12 @@ Handles opcode 0xf2 ****************************************************************************/ void x86emuOp_repne(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("REPNE\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_REPNE; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("REPNE\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_PREFIX_REPNE; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9784,12 +4380,12 @@ Handles opcode 0xf3 ****************************************************************************/ void x86emuOp_repe(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("REPE\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_REPE; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("REPE\n"); + TRACE_AND_STEP(); + M.x86.mode |= SYSMODE_PREFIX_REPE; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9798,12 +4394,12 @@ Handles opcode 0xf4 ****************************************************************************/ void x86emuOp_halt(u8 X86EMU_UNUSED(op1)) { - START_OF_INSTR(); - DECODE_PRINTF("HALT\n"); - TRACE_AND_STEP(); - HALT_SYS(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("HALT\n"); + TRACE_AND_STEP(); + HALT_SYS(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9812,13 +4408,13 @@ Handles opcode 0xf5 ****************************************************************************/ void x86emuOp_cmc(u8 X86EMU_UNUSED(op1)) { - /* complement the carry flag. */ - START_OF_INSTR(); - DECODE_PRINTF("CMC\n"); - TRACE_AND_STEP(); - TOGGLE_FLAG(F_CF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* complement the carry flag. */ + START_OF_INSTR(); + DECODE_PRINTF("CMC\n"); + TRACE_AND_STEP(); + TOGGLE_FLAG(F_CF); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -9827,282 +4423,114 @@ Handles opcode 0xf6 ****************************************************************************/ void x86emuOp_opcF6_byte_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval, srcval; - - /* long, drawn out code follows. Double switch for a total - of 32 cases. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: /* mod=00 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - test_byte(destval, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = not_byte(destval); - store_data_byte(destoffset, destval); - break; - case 3: - DECODE_PRINTF("NEG\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = neg_byte(destval); - store_data_byte(destoffset, destval); - break; - case 4: - DECODE_PRINTF("MUL\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - mul_byte(destval); - break; - case 5: - DECODE_PRINTF("IMUL\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - imul_byte(destval); - break; - case 6: - DECODE_PRINTF("DIV\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - div_byte(destval); - break; - case 7: - DECODE_PRINTF("IDIV\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - idiv_byte(destval); - break; - } - break; /* end mod==00 */ - case 1: /* mod=01 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - test_byte(destval, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = not_byte(destval); - store_data_byte(destoffset, destval); - break; - case 3: - DECODE_PRINTF("NEG\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = neg_byte(destval); - store_data_byte(destoffset, destval); - break; - case 4: - DECODE_PRINTF("MUL\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - mul_byte(destval); - break; - case 5: - DECODE_PRINTF("IMUL\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - imul_byte(destval); - break; - case 6: - DECODE_PRINTF("DIV\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - div_byte(destval); - break; - case 7: - DECODE_PRINTF("IDIV\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - idiv_byte(destval); - break; - } - break; /* end mod==01 */ - case 2: /* mod=10 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - test_byte(destval, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = not_byte(destval); - store_data_byte(destoffset, destval); - break; - case 3: - DECODE_PRINTF("NEG\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = neg_byte(destval); - store_data_byte(destoffset, destval); - break; - case 4: - DECODE_PRINTF("MUL\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - mul_byte(destval); - break; - case 5: - DECODE_PRINTF("IMUL\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - imul_byte(destval); - break; - case 6: - DECODE_PRINTF("DIV\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - div_byte(destval); - break; - case 7: - DECODE_PRINTF("IDIV\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - idiv_byte(destval); - break; - } - break; /* end mod==10 */ - case 3: /* mod=11 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - TRACE_AND_STEP(); - test_byte(*destreg, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = not_byte(*destreg); - break; - case 3: - DECODE_PRINTF("NEG\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = neg_byte(*destreg); - break; - case 4: - DECODE_PRINTF("MUL\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - mul_byte(*destreg); /*!!! */ - break; - case 5: - DECODE_PRINTF("IMUL\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - imul_byte(*destreg); - break; - case 6: - DECODE_PRINTF("DIV\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - div_byte(*destreg); - break; - case 7: - DECODE_PRINTF("IDIV\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - idiv_byte(*destreg); - break; - } - break; /* end mod==11 */ - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + u8 *destreg; + uint destoffset; + u8 destval, srcval; + + /* long, drawn out code follows. Double switch for a total + of 32 cases. */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + DECODE_PRINTF(opF6_names[rh]); + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + destval = fetch_data_byte(destoffset); + + switch (rh) { + case 0: /* test byte imm */ + DECODE_PRINTF(","); + srcval = fetch_byte_imm(); + DECODE_PRINTF2("%02x\n", srcval); + TRACE_AND_STEP(); + test_byte(destval, srcval); + break; + case 1: + DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); + HALT_SYS(); + break; + case 2: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = not_byte(destval); + store_data_byte(destoffset, destval); + break; + case 3: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = neg_byte(destval); + store_data_byte(destoffset, destval); + break; + case 4: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + mul_byte(destval); + break; + case 5: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + imul_byte(destval); + break; + case 6: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + div_byte(destval); + break; + default: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + idiv_byte(destval); + break; + } + } else { /* mod=11 */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + switch (rh) { + case 0: /* test byte imm */ + DECODE_PRINTF(","); + srcval = fetch_byte_imm(); + DECODE_PRINTF2("%02x\n", srcval); + TRACE_AND_STEP(); + test_byte(*destreg, srcval); + break; + case 1: + DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); + HALT_SYS(); + break; + case 2: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = not_byte(*destreg); + break; + case 3: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = neg_byte(*destreg); + break; + case 4: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + mul_byte(*destreg); /*!!! */ + break; + case 5: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + imul_byte(*destreg); + break; + case 6: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + div_byte(*destreg); + break; + default: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + idiv_byte(*destreg); + break; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10111,653 +4539,224 @@ Handles opcode 0xf7 ****************************************************************************/ void x86emuOp_opcF7_word_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rl, rh; - uint destoffset; - - /* long, drawn out code follows. Double switch for a total - of 32 cases. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: /* mod=00 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, srcval; - - DECODE_PRINTF("TEST\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - test_long(destval, srcval); - } else { - u16 destval, srcval; - - DECODE_PRINTF("TEST\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - test_word(destval, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NOT\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = not_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NOT\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = not_word(destval); - store_data_word(destoffset, destval); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NEG\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = neg_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NEG\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = neg_word(destval); - store_data_word(destoffset, destval); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("MUL\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - mul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("MUL\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - mul_word(destval); - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IMUL\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - imul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IMUL\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - imul_word(destval); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DIV\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - div_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("DIV\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - div_word(destval); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IDIV\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - idiv_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IDIV\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - idiv_word(destval); - } - break; - } - break; /* end mod==00 */ - case 1: /* mod=01 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, srcval; - - DECODE_PRINTF("TEST\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - test_long(destval, srcval); - } else { - u16 destval, srcval; - - DECODE_PRINTF("TEST\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - test_word(destval, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NOT\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = not_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NOT\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = not_word(destval); - store_data_word(destoffset, destval); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NEG\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = neg_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NEG\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = neg_word(destval); - store_data_word(destoffset, destval); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("MUL\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - mul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("MUL\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - mul_word(destval); - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IMUL\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - imul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IMUL\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - imul_word(destval); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DIV\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - div_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("DIV\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - div_word(destval); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IDIV\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - idiv_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IDIV\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - idiv_word(destval); - } - break; - } - break; /* end mod==01 */ - case 2: /* mod=10 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval, srcval; - - DECODE_PRINTF("TEST\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - test_long(destval, srcval); - } else { - u16 destval, srcval; - - DECODE_PRINTF("TEST\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - test_word(destval, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NOT\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = not_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NOT\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = not_word(destval); - store_data_word(destoffset, destval); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NEG\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = neg_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NEG\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = neg_word(destval); - store_data_word(destoffset, destval); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("MUL\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - mul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("MUL\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - mul_word(destval); - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IMUL\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - imul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IMUL\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - imul_word(destval); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DIV\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - div_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("DIV\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - div_word(destval); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IDIV\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - idiv_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IDIV\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - idiv_word(destval); - } - break; - } - break; /* end mod==10 */ - case 3: /* mod=11 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - DECODE_PRINTF("TEST\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - test_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - DECODE_PRINTF("TEST\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - test_word(*destreg, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("NOT\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = not_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("NOT\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = not_word(*destreg); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("NEG\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = neg_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("NEG\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = neg_word(*destreg); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("MUL\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - mul_long(*destreg); /*!!! */ - } else { - u16 *destreg; - - DECODE_PRINTF("MUL\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - mul_word(*destreg); /*!!! */ - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("IMUL\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - imul_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("IMUL\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - imul_word(*destreg); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("DIV\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - div_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("DIV\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - div_word(*destreg); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("IDIV\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - idiv_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("IDIV\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - idiv_word(*destreg); - } - break; - } - break; /* end mod==11 */ - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + DECODE_PRINTF(opF6_names[rh]); + if (mod < 3) { + + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval, srcval; + + DECODE_PRINTF("DWORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + destval = fetch_data_long(destoffset); + + switch (rh) { + case 0: + DECODE_PRINTF(","); + srcval = fetch_long_imm(); + DECODE_PRINTF2("%x\n", srcval); + TRACE_AND_STEP(); + test_long(destval, srcval); + break; + case 1: + DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n"); + HALT_SYS(); + break; + case 2: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = not_long(destval); + store_data_long(destoffset, destval); + break; + case 3: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = neg_long(destval); + store_data_long(destoffset, destval); + break; + case 4: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + mul_long(destval); + break; + case 5: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + imul_long(destval); + break; + case 6: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + div_long(destval); + break; + case 7: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + idiv_long(destval); + break; + } + } else { + u16 destval, srcval; + + DECODE_PRINTF("WORD PTR "); + destoffset = decode_rmXX_address(mod, rl); + destval = fetch_data_word(destoffset); + + switch (rh) { + case 0: /* test word imm */ + DECODE_PRINTF(","); + srcval = fetch_word_imm(); + DECODE_PRINTF2("%x\n", srcval); + TRACE_AND_STEP(); + test_word(destval, srcval); + break; + case 1: + DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n"); + HALT_SYS(); + break; + case 2: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = not_word(destval); + store_data_word(destoffset, destval); + break; + case 3: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + destval = neg_word(destval); + store_data_word(destoffset, destval); + break; + case 4: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + mul_word(destval); + break; + case 5: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + imul_word(destval); + break; + case 6: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + div_word(destval); + break; + case 7: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + idiv_word(destval); + break; + } + } + + } else { /* mod=11 */ + + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 srcval; + + destreg = DECODE_RM_LONG_REGISTER(rl); + + switch (rh) { + case 0: /* test word imm */ + DECODE_PRINTF(","); + srcval = fetch_long_imm(); + DECODE_PRINTF2("%x\n", srcval); + TRACE_AND_STEP(); + test_long(*destreg, srcval); + break; + case 1: + DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); + HALT_SYS(); + break; + case 2: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = not_long(*destreg); + break; + case 3: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = neg_long(*destreg); + break; + case 4: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + mul_long(*destreg); /*!!! */ + break; + case 5: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + imul_long(*destreg); + break; + case 6: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + div_long(*destreg); + break; + case 7: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + idiv_long(*destreg); + break; + } + } else { + u16 *destreg; + u16 srcval; + + destreg = DECODE_RM_WORD_REGISTER(rl); + + switch (rh) { + case 0: /* test word imm */ + DECODE_PRINTF(","); + srcval = fetch_word_imm(); + DECODE_PRINTF2("%x\n", srcval); + TRACE_AND_STEP(); + test_word(*destreg, srcval); + break; + case 1: + DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); + HALT_SYS(); + break; + case 2: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = not_word(*destreg); + break; + case 3: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = neg_word(*destreg); + break; + case 4: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + mul_word(*destreg); /*!!! */ + break; + case 5: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + imul_word(*destreg); + break; + case 6: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + div_word(*destreg); + break; + case 7: + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + idiv_word(*destreg); + break; + } + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10766,13 +4765,13 @@ Handles opcode 0xf8 ****************************************************************************/ void x86emuOp_clc(u8 X86EMU_UNUSED(op1)) { - /* clear the carry flag. */ - START_OF_INSTR(); - DECODE_PRINTF("CLC\n"); - TRACE_AND_STEP(); - CLEAR_FLAG(F_CF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* clear the carry flag. */ + START_OF_INSTR(); + DECODE_PRINTF("CLC\n"); + TRACE_AND_STEP(); + CLEAR_FLAG(F_CF); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10781,13 +4780,13 @@ Handles opcode 0xf9 ****************************************************************************/ void x86emuOp_stc(u8 X86EMU_UNUSED(op1)) { - /* set the carry flag. */ - START_OF_INSTR(); - DECODE_PRINTF("STC\n"); - TRACE_AND_STEP(); - SET_FLAG(F_CF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* set the carry flag. */ + START_OF_INSTR(); + DECODE_PRINTF("STC\n"); + TRACE_AND_STEP(); + SET_FLAG(F_CF); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10796,13 +4795,13 @@ Handles opcode 0xfa ****************************************************************************/ void x86emuOp_cli(u8 X86EMU_UNUSED(op1)) { - /* clear interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("CLI\n"); - TRACE_AND_STEP(); - CLEAR_FLAG(F_IF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* clear interrupts. */ + START_OF_INSTR(); + DECODE_PRINTF("CLI\n"); + TRACE_AND_STEP(); + CLEAR_FLAG(F_IF); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10811,13 +4810,13 @@ Handles opcode 0xfb ****************************************************************************/ void x86emuOp_sti(u8 X86EMU_UNUSED(op1)) { - /* enable interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("STI\n"); - TRACE_AND_STEP(); - SET_FLAG(F_IF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* enable interrupts. */ + START_OF_INSTR(); + DECODE_PRINTF("STI\n"); + TRACE_AND_STEP(); + SET_FLAG(F_IF); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10826,13 +4825,13 @@ Handles opcode 0xfc ****************************************************************************/ void x86emuOp_cld(u8 X86EMU_UNUSED(op1)) { - /* clear interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("CLD\n"); - TRACE_AND_STEP(); - CLEAR_FLAG(F_DF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* clear interrupts. */ + START_OF_INSTR(); + DECODE_PRINTF("CLD\n"); + TRACE_AND_STEP(); + CLEAR_FLAG(F_DF); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10841,13 +4840,13 @@ Handles opcode 0xfd ****************************************************************************/ void x86emuOp_std(u8 X86EMU_UNUSED(op1)) { - /* clear interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("STD\n"); - TRACE_AND_STEP(); - SET_FLAG(F_DF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + /* clear interrupts. */ + START_OF_INSTR(); + DECODE_PRINTF("STD\n"); + TRACE_AND_STEP(); + SET_FLAG(F_DF); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10856,115 +4855,62 @@ Handles opcode 0xfe ****************************************************************************/ void x86emuOp_opcFE_byte_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rh, rl; - u8 destval; - uint destoffset; - u8 *destreg; + int mod, rh, rl; + u8 destval; + uint destoffset; + u8 *destreg; - /* Yet another special case instruction. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + /* Yet another special case instruction. */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("INC\t"); - break; - case 1: - DECODE_PRINTF("DEC\t"); - break; - case 2: - case 3: - case 4: - case 5: - case 6: - case 7: - DECODE_PRINTF2("ILLEGAL OP MAJOR OP 0xFE MINOR OP %x \n", mod); - HALT_SYS(); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + + switch (rh) { + case 0: + DECODE_PRINTF("INC\t"); + break; + case 1: + DECODE_PRINTF("DEC\t"); + break; + case 2: + case 3: + case 4: + case 5: + case 6: + case 7: + DECODE_PRINTF2("ILLEGAL OP MAJOR OP 0xFE MINOR OP %x \n", mod); + HALT_SYS(); + break; + } + } #endif - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: /* inc word ptr ... */ - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = inc_byte(destval); - store_data_byte(destoffset, destval); - break; - case 1: /* dec word ptr ... */ - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = dec_byte(destval); - store_data_byte(destoffset, destval); - break; - } - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = inc_byte(destval); - store_data_byte(destoffset, destval); - break; - case 1: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = dec_byte(destval); - store_data_byte(destoffset, destval); - break; - } - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = inc_byte(destval); - store_data_byte(destoffset, destval); - break; - case 1: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = dec_byte(destval); - store_data_byte(destoffset, destval); - break; - } - break; - case 3: - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - TRACE_AND_STEP(); - *destreg = inc_byte(*destreg); - break; - case 1: - TRACE_AND_STEP(); - *destreg = dec_byte(*destreg); - break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + if (mod < 3) { + DECODE_PRINTF("BYTE PTR "); + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + destval = fetch_data_byte(destoffset); + TRACE_AND_STEP(); + if (rh == 0) + destval = inc_byte(destval); + else + destval = dec_byte(destval); + store_data_byte(destoffset, destval); + } else { + destreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + if (rh == 0) + *destreg = inc_byte(*destreg); + else + *destreg = dec_byte(*destreg); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -10973,499 +4919,344 @@ Handles opcode 0xff ****************************************************************************/ void x86emuOp_opcFF_word_RM(u8 X86EMU_UNUSED(op1)) { - int mod, rh, rl; - uint destoffset = 0; + int mod, rh, rl; + uint destoffset = 0; u16 *destreg; - u16 destval, destval2; + u16 destval,destval2; - /* Yet another special case instruction. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); + /* Yet another special case instruction. */ + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); #ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tDWORD PTR "); - } else { - DECODE_PRINTF("INC\tWORD PTR "); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tDWORD PTR "); - } else { - DECODE_PRINTF("DEC\tWORD PTR "); - } - break; - case 2: - DECODE_PRINTF("CALL\t"); - break; - case 3: - DECODE_PRINTF("CALL\tFAR "); - break; - case 4: - DECODE_PRINTF("JMP\t"); - break; - case 5: - DECODE_PRINTF("JMP\tFAR "); - break; - case 6: - DECODE_PRINTF("PUSH\t"); - break; - case 7: - DECODE_PRINTF("ILLEGAL DECODING OF OPCODE FF\t"); - HALT_SYS(); - break; - } - } + if (DEBUG_DECODE()) { + /* XXX DECODE_PRINTF may be changed to something more + general, so that it is important to leave the strings + in the same format, even though the result is that the + above test is done twice. */ + + switch (rh) { + case 0: + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("INC\tDWORD PTR "); + } else { + DECODE_PRINTF("INC\tWORD PTR "); + } + break; + case 1: + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + DECODE_PRINTF("DEC\tDWORD PTR "); + } else { + DECODE_PRINTF("DEC\tWORD PTR "); + } + break; + case 2: + DECODE_PRINTF("CALL\t "); + break; + case 3: + DECODE_PRINTF("CALL\tFAR "); + break; + case 4: + DECODE_PRINTF("JMP\t"); + break; + case 5: + DECODE_PRINTF("JMP\tFAR "); + break; + case 6: + DECODE_PRINTF("PUSH\t"); + break; + case 7: + DECODE_PRINTF("ILLEGAL DECODING OF OPCODE FF\t"); + HALT_SYS(); + break; + } + } #endif - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: /* inc word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = inc_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = inc_word(destval); - store_data_word(destoffset, destval); - } - break; - case 1: /* dec word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = dec_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = dec_word(destval); - store_data_word(destoffset, destval); - } - break; - case 2: /* call word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 3: /* call far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = destval2; - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 4: /* jmp word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - break; - case 5: /* jmp far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - M.x86.R_CS = destval2; - break; - case 6: /* push word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - push_long(destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(destval); - } - break; - } - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = inc_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = inc_word(destval); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = dec_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = dec_word(destval); - store_data_word(destoffset, destval); - } - break; - case 2: /* call word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 3: /* call far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = destval2; - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 4: /* jmp word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - break; - case 5: /* jmp far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - M.x86.R_CS = destval2; - break; - case 6: /* push word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - push_long(destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(destval); - } - break; - } - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = inc_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = inc_word(destval); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = dec_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = dec_word(destval); - store_data_word(destoffset, destval); - } - break; - case 2: /* call word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 3: /* call far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = destval2; - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 4: /* jmp word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - break; - case 5: /* jmp far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - M.x86.R_CS = destval2; - break; - case 6: /* push word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - push_long(destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(destval); - } - break; - } - break; - case 3: - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = inc_long(*destreg); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = inc_word(*destreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = dec_long(*destreg); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = dec_word(*destreg); - } - break; - case 2: /* call word ptr ... */ - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = *destreg; - break; - case 3: /* jmp far ptr ... */ - DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n"); - TRACE_AND_STEP(); - HALT_SYS(); - break; - - case 4: /* jmp ... */ - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - M.x86.R_IP = (u16) (*destreg); - break; - case 5: /* jmp far ptr ... */ - DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n"); - TRACE_AND_STEP(); - HALT_SYS(); - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - push_long(*destreg); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - push_word(*destreg); - } - break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + switch (rh) { + case 0: /* inc word ptr ... */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + + destval = fetch_data_long(destoffset); + TRACE_AND_STEP(); + destval = inc_long(destval); + store_data_long(destoffset, destval); + } else { + u16 destval; + + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + destval = inc_word(destval); + store_data_word(destoffset, destval); + } + break; + case 1: /* dec word ptr ... */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + + destval = fetch_data_long(destoffset); + TRACE_AND_STEP(); + destval = dec_long(destval); + store_data_long(destoffset, destval); + } else { + u16 destval; + + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + destval = dec_word(destval); + store_data_word(destoffset, destval); + } + break; + case 2: /* call word ptr ... */ + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + push_word(M.x86.R_IP); + M.x86.R_IP = destval; + break; + case 3: /* call far ptr ... */ + destval = fetch_data_word(destoffset); + destval2 = fetch_data_word(destoffset + 2); + TRACE_AND_STEP(); + push_word(M.x86.R_CS); + M.x86.R_CS = destval2; + push_word(M.x86.R_IP); + M.x86.R_IP = destval; + break; + case 4: /* jmp word ptr ... */ + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + M.x86.R_IP = destval; + break; + case 5: /* jmp far ptr ... */ + destval = fetch_data_word(destoffset); + destval2 = fetch_data_word(destoffset + 2); + TRACE_AND_STEP(); + M.x86.R_IP = destval; + M.x86.R_CS = destval2; + break; + case 6: /* push word ptr ... */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + + destval = fetch_data_long(destoffset); + TRACE_AND_STEP(); + push_long(destval); + } else { + u16 destval; + + destval = fetch_data_word(destoffset); + TRACE_AND_STEP(); + push_word(destval); + } + break; + } + } else { + switch (rh) { + case 0: + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = inc_long(*destreg); + } else { + u16 *destreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = inc_word(*destreg); + } + break; + case 1: + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = dec_long(*destreg); + } else { + u16 *destreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = dec_word(*destreg); + } + break; + case 2: /* call word ptr ... */ + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + push_word(M.x86.R_IP); + M.x86.R_IP = *destreg; + break; + case 3: /* jmp far ptr ... */ + DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n"); + TRACE_AND_STEP(); + HALT_SYS(); + break; + + case 4: /* jmp ... */ + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + M.x86.R_IP = (u16) (*destreg); + break; + case 5: /* jmp far ptr ... */ + DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n"); + TRACE_AND_STEP(); + HALT_SYS(); + break; + case 6: + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + push_long(*destreg); + } else { + u16 *destreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + push_word(*destreg); + } + break; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /*************************************************************************** * Single byte operation code table: **************************************************************************/ -void (*x86emu_optab[256]) (u8) = { -/* 0x00 */ x86emuOp_add_byte_RM_R, -/* 0x01 */ x86emuOp_add_word_RM_R, -/* 0x02 */ x86emuOp_add_byte_R_RM, -/* 0x03 */ x86emuOp_add_word_R_RM, -/* 0x04 */ x86emuOp_add_byte_AL_IMM, -/* 0x05 */ x86emuOp_add_word_AX_IMM, +void (*x86emu_optab[256])(u8) = +{ +/* 0x00 */ x86emuOp_genop_byte_RM_R, +/* 0x01 */ x86emuOp_genop_word_RM_R, +/* 0x02 */ x86emuOp_genop_byte_R_RM, +/* 0x03 */ x86emuOp_genop_word_R_RM, +/* 0x04 */ x86emuOp_genop_byte_AL_IMM, +/* 0x05 */ x86emuOp_genop_word_AX_IMM, /* 0x06 */ x86emuOp_push_ES, /* 0x07 */ x86emuOp_pop_ES, -/* 0x08 */ x86emuOp_or_byte_RM_R, -/* 0x09 */ x86emuOp_or_word_RM_R, -/* 0x0a */ x86emuOp_or_byte_R_RM, -/* 0x0b */ x86emuOp_or_word_R_RM, -/* 0x0c */ x86emuOp_or_byte_AL_IMM, -/* 0x0d */ x86emuOp_or_word_AX_IMM, + +/* 0x08 */ x86emuOp_genop_byte_RM_R, +/* 0x09 */ x86emuOp_genop_word_RM_R, +/* 0x0a */ x86emuOp_genop_byte_R_RM, +/* 0x0b */ x86emuOp_genop_word_R_RM, +/* 0x0c */ x86emuOp_genop_byte_AL_IMM, +/* 0x0d */ x86emuOp_genop_word_AX_IMM, /* 0x0e */ x86emuOp_push_CS, /* 0x0f */ x86emuOp_two_byte, -/* 0x10 */ x86emuOp_adc_byte_RM_R, -/* 0x11 */ x86emuOp_adc_word_RM_R, -/* 0x12 */ x86emuOp_adc_byte_R_RM, -/* 0x13 */ x86emuOp_adc_word_R_RM, -/* 0x14 */ x86emuOp_adc_byte_AL_IMM, -/* 0x15 */ x86emuOp_adc_word_AX_IMM, + +/* 0x10 */ x86emuOp_genop_byte_RM_R, +/* 0x11 */ x86emuOp_genop_word_RM_R, +/* 0x12 */ x86emuOp_genop_byte_R_RM, +/* 0x13 */ x86emuOp_genop_word_R_RM, +/* 0x14 */ x86emuOp_genop_byte_AL_IMM, +/* 0x15 */ x86emuOp_genop_word_AX_IMM, /* 0x16 */ x86emuOp_push_SS, /* 0x17 */ x86emuOp_pop_SS, -/* 0x18 */ x86emuOp_sbb_byte_RM_R, -/* 0x19 */ x86emuOp_sbb_word_RM_R, -/* 0x1a */ x86emuOp_sbb_byte_R_RM, -/* 0x1b */ x86emuOp_sbb_word_R_RM, -/* 0x1c */ x86emuOp_sbb_byte_AL_IMM, -/* 0x1d */ x86emuOp_sbb_word_AX_IMM, + +/* 0x18 */ x86emuOp_genop_byte_RM_R, +/* 0x19 */ x86emuOp_genop_word_RM_R, +/* 0x1a */ x86emuOp_genop_byte_R_RM, +/* 0x1b */ x86emuOp_genop_word_R_RM, +/* 0x1c */ x86emuOp_genop_byte_AL_IMM, +/* 0x1d */ x86emuOp_genop_word_AX_IMM, /* 0x1e */ x86emuOp_push_DS, /* 0x1f */ x86emuOp_pop_DS, -/* 0x20 */ x86emuOp_and_byte_RM_R, -/* 0x21 */ x86emuOp_and_word_RM_R, -/* 0x22 */ x86emuOp_and_byte_R_RM, -/* 0x23 */ x86emuOp_and_word_R_RM, -/* 0x24 */ x86emuOp_and_byte_AL_IMM, -/* 0x25 */ x86emuOp_and_word_AX_IMM, + +/* 0x20 */ x86emuOp_genop_byte_RM_R, +/* 0x21 */ x86emuOp_genop_word_RM_R, +/* 0x22 */ x86emuOp_genop_byte_R_RM, +/* 0x23 */ x86emuOp_genop_word_R_RM, +/* 0x24 */ x86emuOp_genop_byte_AL_IMM, +/* 0x25 */ x86emuOp_genop_word_AX_IMM, /* 0x26 */ x86emuOp_segovr_ES, /* 0x27 */ x86emuOp_daa, -/* 0x28 */ x86emuOp_sub_byte_RM_R, -/* 0x29 */ x86emuOp_sub_word_RM_R, -/* 0x2a */ x86emuOp_sub_byte_R_RM, -/* 0x2b */ x86emuOp_sub_word_R_RM, -/* 0x2c */ x86emuOp_sub_byte_AL_IMM, -/* 0x2d */ x86emuOp_sub_word_AX_IMM, + +/* 0x28 */ x86emuOp_genop_byte_RM_R, +/* 0x29 */ x86emuOp_genop_word_RM_R, +/* 0x2a */ x86emuOp_genop_byte_R_RM, +/* 0x2b */ x86emuOp_genop_word_R_RM, +/* 0x2c */ x86emuOp_genop_byte_AL_IMM, +/* 0x2d */ x86emuOp_genop_word_AX_IMM, /* 0x2e */ x86emuOp_segovr_CS, /* 0x2f */ x86emuOp_das, -/* 0x30 */ x86emuOp_xor_byte_RM_R, -/* 0x31 */ x86emuOp_xor_word_RM_R, -/* 0x32 */ x86emuOp_xor_byte_R_RM, -/* 0x33 */ x86emuOp_xor_word_R_RM, -/* 0x34 */ x86emuOp_xor_byte_AL_IMM, -/* 0x35 */ x86emuOp_xor_word_AX_IMM, + +/* 0x30 */ x86emuOp_genop_byte_RM_R, +/* 0x31 */ x86emuOp_genop_word_RM_R, +/* 0x32 */ x86emuOp_genop_byte_R_RM, +/* 0x33 */ x86emuOp_genop_word_R_RM, +/* 0x34 */ x86emuOp_genop_byte_AL_IMM, +/* 0x35 */ x86emuOp_genop_word_AX_IMM, /* 0x36 */ x86emuOp_segovr_SS, /* 0x37 */ x86emuOp_aaa, -/* 0x38 */ x86emuOp_cmp_byte_RM_R, -/* 0x39 */ x86emuOp_cmp_word_RM_R, -/* 0x3a */ x86emuOp_cmp_byte_R_RM, -/* 0x3b */ x86emuOp_cmp_word_R_RM, -/* 0x3c */ x86emuOp_cmp_byte_AL_IMM, -/* 0x3d */ x86emuOp_cmp_word_AX_IMM, + +/* 0x38 */ x86emuOp_genop_byte_RM_R, +/* 0x39 */ x86emuOp_genop_word_RM_R, +/* 0x3a */ x86emuOp_genop_byte_R_RM, +/* 0x3b */ x86emuOp_genop_word_R_RM, +/* 0x3c */ x86emuOp_genop_byte_AL_IMM, +/* 0x3d */ x86emuOp_genop_word_AX_IMM, /* 0x3e */ x86emuOp_segovr_DS, /* 0x3f */ x86emuOp_aas, -/* 0x40 */ x86emuOp_inc_AX, -/* 0x41 */ x86emuOp_inc_CX, -/* 0x42 */ x86emuOp_inc_DX, -/* 0x43 */ x86emuOp_inc_BX, -/* 0x44 */ x86emuOp_inc_SP, -/* 0x45 */ x86emuOp_inc_BP, -/* 0x46 */ x86emuOp_inc_SI, -/* 0x47 */ x86emuOp_inc_DI, -/* 0x48 */ x86emuOp_dec_AX, -/* 0x49 */ x86emuOp_dec_CX, -/* 0x4a */ x86emuOp_dec_DX, -/* 0x4b */ x86emuOp_dec_BX, -/* 0x4c */ x86emuOp_dec_SP, -/* 0x4d */ x86emuOp_dec_BP, -/* 0x4e */ x86emuOp_dec_SI, -/* 0x4f */ x86emuOp_dec_DI, -/* 0x50 */ x86emuOp_push_AX, -/* 0x51 */ x86emuOp_push_CX, -/* 0x52 */ x86emuOp_push_DX, -/* 0x53 */ x86emuOp_push_BX, -/* 0x54 */ x86emuOp_push_SP, -/* 0x55 */ x86emuOp_push_BP, -/* 0x56 */ x86emuOp_push_SI, -/* 0x57 */ x86emuOp_push_DI, -/* 0x58 */ x86emuOp_pop_AX, -/* 0x59 */ x86emuOp_pop_CX, -/* 0x5a */ x86emuOp_pop_DX, -/* 0x5b */ x86emuOp_pop_BX, -/* 0x5c */ x86emuOp_pop_SP, -/* 0x5d */ x86emuOp_pop_BP, -/* 0x5e */ x86emuOp_pop_SI, -/* 0x5f */ x86emuOp_pop_DI, + +/* 0x40 */ x86emuOp_inc_register, +/* 0x41 */ x86emuOp_inc_register, +/* 0x42 */ x86emuOp_inc_register, +/* 0x43 */ x86emuOp_inc_register, +/* 0x44 */ x86emuOp_inc_register, +/* 0x45 */ x86emuOp_inc_register, +/* 0x46 */ x86emuOp_inc_register, +/* 0x47 */ x86emuOp_inc_register, + +/* 0x48 */ x86emuOp_dec_register, +/* 0x49 */ x86emuOp_dec_register, +/* 0x4a */ x86emuOp_dec_register, +/* 0x4b */ x86emuOp_dec_register, +/* 0x4c */ x86emuOp_dec_register, +/* 0x4d */ x86emuOp_dec_register, +/* 0x4e */ x86emuOp_dec_register, +/* 0x4f */ x86emuOp_dec_register, + +/* 0x50 */ x86emuOp_push_register, +/* 0x51 */ x86emuOp_push_register, +/* 0x52 */ x86emuOp_push_register, +/* 0x53 */ x86emuOp_push_register, +/* 0x54 */ x86emuOp_push_register, +/* 0x55 */ x86emuOp_push_register, +/* 0x56 */ x86emuOp_push_register, +/* 0x57 */ x86emuOp_push_register, + +/* 0x58 */ x86emuOp_pop_register, +/* 0x59 */ x86emuOp_pop_register, +/* 0x5a */ x86emuOp_pop_register, +/* 0x5b */ x86emuOp_pop_register, +/* 0x5c */ x86emuOp_pop_register, +/* 0x5d */ x86emuOp_pop_register, +/* 0x5e */ x86emuOp_pop_register, +/* 0x5f */ x86emuOp_pop_register, + /* 0x60 */ x86emuOp_push_all, /* 0x61 */ x86emuOp_pop_all, - /* 0x62 */ x86emuOp_illegal_op, - /* bound */ - /* 0x63 */ x86emuOp_illegal_op, - /* arpl */ +/* 0x62 */ x86emuOp_illegal_op, /* bound */ +/* 0x63 */ x86emuOp_illegal_op, /* arpl */ /* 0x64 */ x86emuOp_segovr_FS, /* 0x65 */ x86emuOp_segovr_GS, /* 0x66 */ x86emuOp_prefix_data, /* 0x67 */ x86emuOp_prefix_addr, + /* 0x68 */ x86emuOp_push_word_IMM, /* 0x69 */ x86emuOp_imul_word_IMM, /* 0x6a */ x86emuOp_push_byte_IMM, @@ -11474,22 +5265,25 @@ void (*x86emu_optab[256]) (u8) = { /* 0x6d */ x86emuOp_ins_word, /* 0x6e */ x86emuOp_outs_byte, /* 0x6f */ x86emuOp_outs_word, -/* 0x70 */ x86emuOp_jump_near_O, -/* 0x71 */ x86emuOp_jump_near_NO, -/* 0x72 */ x86emuOp_jump_near_B, -/* 0x73 */ x86emuOp_jump_near_NB, -/* 0x74 */ x86emuOp_jump_near_Z, -/* 0x75 */ x86emuOp_jump_near_NZ, -/* 0x76 */ x86emuOp_jump_near_BE, -/* 0x77 */ x86emuOp_jump_near_NBE, -/* 0x78 */ x86emuOp_jump_near_S, -/* 0x79 */ x86emuOp_jump_near_NS, -/* 0x7a */ x86emuOp_jump_near_P, -/* 0x7b */ x86emuOp_jump_near_NP, -/* 0x7c */ x86emuOp_jump_near_L, -/* 0x7d */ x86emuOp_jump_near_NL, -/* 0x7e */ x86emuOp_jump_near_LE, -/* 0x7f */ x86emuOp_jump_near_NLE, + +/* 0x70 */ x86emuOp_jump_near_cond, +/* 0x71 */ x86emuOp_jump_near_cond, +/* 0x72 */ x86emuOp_jump_near_cond, +/* 0x73 */ x86emuOp_jump_near_cond, +/* 0x74 */ x86emuOp_jump_near_cond, +/* 0x75 */ x86emuOp_jump_near_cond, +/* 0x76 */ x86emuOp_jump_near_cond, +/* 0x77 */ x86emuOp_jump_near_cond, + +/* 0x78 */ x86emuOp_jump_near_cond, +/* 0x79 */ x86emuOp_jump_near_cond, +/* 0x7a */ x86emuOp_jump_near_cond, +/* 0x7b */ x86emuOp_jump_near_cond, +/* 0x7c */ x86emuOp_jump_near_cond, +/* 0x7d */ x86emuOp_jump_near_cond, +/* 0x7e */ x86emuOp_jump_near_cond, +/* 0x7f */ x86emuOp_jump_near_cond, + /* 0x80 */ x86emuOp_opc80_byte_RM_IMM, /* 0x81 */ x86emuOp_opc81_word_RM_IMM, /* 0x82 */ x86emuOp_opc82_byte_RM_IMM, @@ -11498,6 +5292,7 @@ void (*x86emu_optab[256]) (u8) = { /* 0x85 */ x86emuOp_test_word_RM_R, /* 0x86 */ x86emuOp_xchg_byte_RM_R, /* 0x87 */ x86emuOp_xchg_word_RM_R, + /* 0x88 */ x86emuOp_mov_byte_RM_R, /* 0x89 */ x86emuOp_mov_word_RM_R, /* 0x8a */ x86emuOp_mov_byte_R_RM, @@ -11506,14 +5301,16 @@ void (*x86emu_optab[256]) (u8) = { /* 0x8d */ x86emuOp_lea_word_R_M, /* 0x8e */ x86emuOp_mov_word_SR_RM, /* 0x8f */ x86emuOp_pop_RM, + /* 0x90 */ x86emuOp_nop, -/* 0x91 */ x86emuOp_xchg_word_AX_CX, -/* 0x92 */ x86emuOp_xchg_word_AX_DX, -/* 0x93 */ x86emuOp_xchg_word_AX_BX, -/* 0x94 */ x86emuOp_xchg_word_AX_SP, -/* 0x95 */ x86emuOp_xchg_word_AX_BP, -/* 0x96 */ x86emuOp_xchg_word_AX_SI, -/* 0x97 */ x86emuOp_xchg_word_AX_DI, +/* 0x91 */ x86emuOp_xchg_word_AX_register, +/* 0x92 */ x86emuOp_xchg_word_AX_register, +/* 0x93 */ x86emuOp_xchg_word_AX_register, +/* 0x94 */ x86emuOp_xchg_word_AX_register, +/* 0x95 */ x86emuOp_xchg_word_AX_register, +/* 0x96 */ x86emuOp_xchg_word_AX_register, +/* 0x97 */ x86emuOp_xchg_word_AX_register, + /* 0x98 */ x86emuOp_cbw, /* 0x99 */ x86emuOp_cwd, /* 0x9a */ x86emuOp_call_far_IMM, @@ -11522,6 +5319,7 @@ void (*x86emu_optab[256]) (u8) = { /* 0x9d */ x86emuOp_popf_word, /* 0x9e */ x86emuOp_sahf, /* 0x9f */ x86emuOp_lahf, + /* 0xa0 */ x86emuOp_mov_AL_M_IMM, /* 0xa1 */ x86emuOp_mov_AX_M_IMM, /* 0xa2 */ x86emuOp_mov_M_AL_IMM, @@ -11538,22 +5336,25 @@ void (*x86emu_optab[256]) (u8) = { /* 0xad */ x86emuOp_lods_word, /* 0xac */ x86emuOp_scas_byte, /* 0xad */ x86emuOp_scas_word, -/* 0xb0 */ x86emuOp_mov_byte_AL_IMM, -/* 0xb1 */ x86emuOp_mov_byte_CL_IMM, -/* 0xb2 */ x86emuOp_mov_byte_DL_IMM, -/* 0xb3 */ x86emuOp_mov_byte_BL_IMM, -/* 0xb4 */ x86emuOp_mov_byte_AH_IMM, -/* 0xb5 */ x86emuOp_mov_byte_CH_IMM, -/* 0xb6 */ x86emuOp_mov_byte_DH_IMM, -/* 0xb7 */ x86emuOp_mov_byte_BH_IMM, -/* 0xb8 */ x86emuOp_mov_word_AX_IMM, -/* 0xb9 */ x86emuOp_mov_word_CX_IMM, -/* 0xba */ x86emuOp_mov_word_DX_IMM, -/* 0xbb */ x86emuOp_mov_word_BX_IMM, -/* 0xbc */ x86emuOp_mov_word_SP_IMM, -/* 0xbd */ x86emuOp_mov_word_BP_IMM, -/* 0xbe */ x86emuOp_mov_word_SI_IMM, -/* 0xbf */ x86emuOp_mov_word_DI_IMM, + +/* 0xb0 */ x86emuOp_mov_byte_register_IMM, +/* 0xb1 */ x86emuOp_mov_byte_register_IMM, +/* 0xb2 */ x86emuOp_mov_byte_register_IMM, +/* 0xb3 */ x86emuOp_mov_byte_register_IMM, +/* 0xb4 */ x86emuOp_mov_byte_register_IMM, +/* 0xb5 */ x86emuOp_mov_byte_register_IMM, +/* 0xb6 */ x86emuOp_mov_byte_register_IMM, +/* 0xb7 */ x86emuOp_mov_byte_register_IMM, + +/* 0xb8 */ x86emuOp_mov_word_register_IMM, +/* 0xb9 */ x86emuOp_mov_word_register_IMM, +/* 0xba */ x86emuOp_mov_word_register_IMM, +/* 0xbb */ x86emuOp_mov_word_register_IMM, +/* 0xbc */ x86emuOp_mov_word_register_IMM, +/* 0xbd */ x86emuOp_mov_word_register_IMM, +/* 0xbe */ x86emuOp_mov_word_register_IMM, +/* 0xbf */ x86emuOp_mov_word_register_IMM, + /* 0xc0 */ x86emuOp_opcC0_byte_RM_MEM, /* 0xc1 */ x86emuOp_opcC1_word_RM_MEM, /* 0xc2 */ x86emuOp_ret_near_IMM, @@ -11570,14 +5371,14 @@ void (*x86emu_optab[256]) (u8) = { /* 0xcd */ x86emuOp_int_IMM, /* 0xce */ x86emuOp_into, /* 0xcf */ x86emuOp_iret, + /* 0xd0 */ x86emuOp_opcD0_byte_RM_1, /* 0xd1 */ x86emuOp_opcD1_word_RM_1, /* 0xd2 */ x86emuOp_opcD2_byte_RM_CL, /* 0xd3 */ x86emuOp_opcD3_word_RM_CL, /* 0xd4 */ x86emuOp_aam, /* 0xd5 */ x86emuOp_aad, - /* 0xd6 */ x86emuOp_illegal_op, - /* Undocumented SETALC instruction */ +/* 0xd6 */ x86emuOp_illegal_op, /* Undocumented SETALC instruction */ /* 0xd7 */ x86emuOp_xlat, /* 0xd8 */ x86emuOp_esc_coprocess_d8, /* 0xd9 */ x86emuOp_esc_coprocess_d9, @@ -11587,6 +5388,7 @@ void (*x86emu_optab[256]) (u8) = { /* 0xdd */ x86emuOp_esc_coprocess_dd, /* 0xde */ x86emuOp_esc_coprocess_de, /* 0xdf */ x86emuOp_esc_coprocess_df, + /* 0xe0 */ x86emuOp_loopne, /* 0xe1 */ x86emuOp_loope, /* 0xe2 */ x86emuOp_loop, @@ -11595,6 +5397,7 @@ void (*x86emu_optab[256]) (u8) = { /* 0xe5 */ x86emuOp_in_word_AX_IMM, /* 0xe6 */ x86emuOp_out_byte_IMM_AL, /* 0xe7 */ x86emuOp_out_word_IMM_AX, + /* 0xe8 */ x86emuOp_call_near_IMM, /* 0xe9 */ x86emuOp_jump_near_IMM, /* 0xea */ x86emuOp_jump_far_IMM, @@ -11603,6 +5406,7 @@ void (*x86emu_optab[256]) (u8) = { /* 0xed */ x86emuOp_in_word_AX_DX, /* 0xee */ x86emuOp_out_byte_DX_AL, /* 0xef */ x86emuOp_out_word_DX_AX, + /* 0xf0 */ x86emuOp_lock, /* 0xf1 */ x86emuOp_illegal_op, /* 0xf2 */ x86emuOp_repne, @@ -11611,6 +5415,7 @@ void (*x86emu_optab[256]) (u8) = { /* 0xf5 */ x86emuOp_cmc, /* 0xf6 */ x86emuOp_opcF6_byte_RM, /* 0xf7 */ x86emuOp_opcF7_word_RM, + /* 0xf8 */ x86emuOp_clc, /* 0xf9 */ x86emuOp_stc, /* 0xfa */ x86emuOp_cli, diff --git a/util/vgabios/x86emu/src/x86emu/ops2.c b/util/vgabios/x86emu/src/x86emu/ops2.c index da3df4fbb7..e312a03fe3 100644 --- a/util/vgabios/x86emu/src/x86emu/ops2.c +++ b/util/vgabios/x86emu/src/x86emu/ops2.c @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,8 +28,8 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: This file includes subroutines to implement the decoding @@ -37,10 +37,8 @@ * instructions. * ****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/ops2.c,v 1.4 2000/11/16 19:44:50 eich Exp $ */ #include "x86emu/x86emui.h" -//#include </root/freebios/util/vgabios/x86emu/include/msr.h> /*----------------------------- Implementation ----------------------------*/ @@ -51,50 +49,16 @@ op1 - Instruction op code REMARKS: Handles illegal opcodes. ****************************************************************************/ -void x86emuOp2_illegal_op(u8 op2) +void x86emuOp2_illegal_op( + u8 op2) { - START_OF_INSTR(); - DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n"); - TRACE_REGS(); - printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n", - M.x86.R_CS, M.x86.R_IP - 2, op2); - HALT_SYS(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0x31 -****************************************************************************/ -void x86emuOp2_rdtsc(u8 op2) -{ - static unsigned long eax = 0, edx = 0; - char *name = 0; - - /* rdtsc */ - START_OF_INSTR(); - switch (op2) { - case 0x31: - name = "RDTSC\t"; - //rdtsc(eax, edx); - eax++; - if (eax == 0) - edx++; - M.x86.R_EAX = eax; - M.x86.R_EDX = edx; - break; - default: - DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE(0f)\n"); - TRACE_REGS(); - printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n", - M.x86.R_CS, M.x86.R_IP - 2, op2); - HALT_SYS(); - break; - } - DECODE_PRINTF(name); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n"); + TRACE_REGS(); + printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n", + M.x86.R_CS, M.x86.R_IP-2,op2); + HALT_SYS(); + END_OF_INSTR(); } #define xorl(a,b) ((a) && !(b)) || (!(a) && (b)) @@ -103,89 +67,92 @@ void x86emuOp2_rdtsc(u8 op2) REMARKS: Handles opcode 0x0f,0x80-0x8F ****************************************************************************/ +int x86emu_check_jump_condition(u8 op) +{ + switch (op) { + case 0x0: + DECODE_PRINTF("JO\t"); + return ACCESS_FLAG(F_OF); + case 0x1: + DECODE_PRINTF("JNO\t"); + return !ACCESS_FLAG(F_OF); + break; + case 0x2: + DECODE_PRINTF("JB\t"); + return ACCESS_FLAG(F_CF); + break; + case 0x3: + DECODE_PRINTF("JNB\t"); + return !ACCESS_FLAG(F_CF); + break; + case 0x4: + DECODE_PRINTF("JZ\t"); + return ACCESS_FLAG(F_ZF); + break; + case 0x5: + DECODE_PRINTF("JNZ\t"); + return !ACCESS_FLAG(F_ZF); + break; + case 0x6: + DECODE_PRINTF("JBE\t"); + return ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF); + break; + case 0x7: + DECODE_PRINTF("JNBE\t"); + return !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)); + break; + case 0x8: + DECODE_PRINTF("JS\t"); + return ACCESS_FLAG(F_SF); + break; + case 0x9: + DECODE_PRINTF("JNS\t"); + return !ACCESS_FLAG(F_SF); + break; + case 0xa: + DECODE_PRINTF("JP\t"); + return ACCESS_FLAG(F_PF); + break; + case 0xb: + DECODE_PRINTF("JNP\t"); + return !ACCESS_FLAG(F_PF); + break; + case 0xc: + DECODE_PRINTF("JL\t"); + return xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); + break; + case 0xd: + DECODE_PRINTF("JNL\t"); + return !xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); + break; + case 0xe: + DECODE_PRINTF("JLE\t"); + return (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || + ACCESS_FLAG(F_ZF)); + break; + default: + DECODE_PRINTF("JNLE\t"); + return !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || + ACCESS_FLAG(F_ZF)); + } +} + void x86emuOp2_long_jump(u8 op2) { - s32 target; - char *name = 0; - int cond = 0; - - /* conditional jump to word offset. */ - START_OF_INSTR(); - switch (op2) { - case 0x80: - name = "JO\t"; - cond = ACCESS_FLAG(F_OF); - break; - case 0x81: - name = "JNO\t"; - cond = !ACCESS_FLAG(F_OF); - break; - case 0x82: - name = "JB\t"; - cond = ACCESS_FLAG(F_CF); - break; - case 0x83: - name = "JNB\t"; - cond = !ACCESS_FLAG(F_CF); - break; - case 0x84: - name = "JZ\t"; - cond = ACCESS_FLAG(F_ZF); - break; - case 0x85: - name = "JNZ\t"; - cond = !ACCESS_FLAG(F_ZF); - break; - case 0x86: - name = "JBE\t"; - cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF); - break; - case 0x87: - name = "JNBE\t"; - cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)); - break; - case 0x88: - name = "JS\t"; - cond = ACCESS_FLAG(F_SF); - break; - case 0x89: - name = "JNS\t"; - cond = !ACCESS_FLAG(F_SF); - break; - case 0x8a: - name = "JP\t"; - cond = ACCESS_FLAG(F_PF); - break; - case 0x8b: - name = "JNP\t"; - cond = !ACCESS_FLAG(F_PF); - break; - case 0x8c: - name = "JL\t"; - cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); - break; - case 0x8d: - name = "JNL\t"; - cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); - break; - case 0x8e: - name = "JLE\t"; - cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF)); - break; - case 0x8f: - name = "JNLE\t"; - cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF)); - break; - } - DECODE_PRINTF(name); - target = (s16) fetch_word_imm(); - target += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", target); - TRACE_AND_STEP(); - if (cond) - M.x86.R_IP = (u16) target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + s32 target; + int cond; + + /* conditional jump to word offset. */ + START_OF_INSTR(); + cond = x86emu_check_jump_condition(op2 & 0xF); + target = (s16) fetch_word_imm(); + target += (s16) M.x86.R_IP; + DECODE_PRINTF2("%04x\n", target); + TRACE_AND_STEP(); + if (cond) + M.x86.R_IP = (u16)target; + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -194,105 +161,94 @@ Handles opcode 0x0f,0x90-0x9F ****************************************************************************/ void x86emuOp2_set_byte(u8 op2) { - int mod, rl, rh; - uint destoffset; - u8 *destreg; - char *name = 0; - int cond = 0; - - START_OF_INSTR(); - switch (op2) { - case 0x90: - name = "SETO\t"; - cond = ACCESS_FLAG(F_OF); - break; - case 0x91: - name = "SETNO\t"; - cond = !ACCESS_FLAG(F_OF); - break; - case 0x92: - name = "SETB\t"; - cond = ACCESS_FLAG(F_CF); - break; - case 0x93: - name = "SETNB\t"; - cond = !ACCESS_FLAG(F_CF); - break; - case 0x94: - name = "SETZ\t"; - cond = ACCESS_FLAG(F_ZF); - break; - case 0x95: - name = "SETNZ\t"; - cond = !ACCESS_FLAG(F_ZF); - break; - case 0x96: - name = "SETBE\t"; - cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF); - break; - case 0x97: - name = "SETNBE\t"; - cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)); - break; - case 0x98: - name = "SETS\t"; - cond = ACCESS_FLAG(F_SF); - break; - case 0x99: - name = "SETNS\t"; - cond = !ACCESS_FLAG(F_SF); - break; - case 0x9a: - name = "SETP\t"; - cond = ACCESS_FLAG(F_PF); - break; - case 0x9b: - name = "SETNP\t"; - cond = !ACCESS_FLAG(F_PF); - break; - case 0x9c: - name = "SETL\t"; - cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); - break; - case 0x9d: - name = "SETNL\t"; - cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); - break; - case 0x9e: - name = "SETLE\t"; - cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF)); - break; - case 0x9f: - name = "SETNLE\t"; - cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF)); - break; - } - DECODE_PRINTF(name); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - TRACE_AND_STEP(); - store_data_byte(destoffset, cond ? 0x01 : 0x00); - break; - case 1: - destoffset = decode_rm01_address(rl); - TRACE_AND_STEP(); - store_data_byte(destoffset, cond ? 0x01 : 0x00); - break; - case 2: - destoffset = decode_rm10_address(rl); - TRACE_AND_STEP(); - store_data_byte(destoffset, cond ? 0x01 : 0x00); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - TRACE_AND_STEP(); - *destreg = cond ? 0x01 : 0x00; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + u8 *destreg; + char *name = 0; + int cond = 0; + + START_OF_INSTR(); + switch (op2) { + case 0x90: + name = "SETO\t"; + cond = ACCESS_FLAG(F_OF); + break; + case 0x91: + name = "SETNO\t"; + cond = !ACCESS_FLAG(F_OF); + break; + case 0x92: + name = "SETB\t"; + cond = ACCESS_FLAG(F_CF); + break; + case 0x93: + name = "SETNB\t"; + cond = !ACCESS_FLAG(F_CF); + break; + case 0x94: + name = "SETZ\t"; + cond = ACCESS_FLAG(F_ZF); + break; + case 0x95: + name = "SETNZ\t"; + cond = !ACCESS_FLAG(F_ZF); + break; + case 0x96: + name = "SETBE\t"; + cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF); + break; + case 0x97: + name = "SETNBE\t"; + cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)); + break; + case 0x98: + name = "SETS\t"; + cond = ACCESS_FLAG(F_SF); + break; + case 0x99: + name = "SETNS\t"; + cond = !ACCESS_FLAG(F_SF); + break; + case 0x9a: + name = "SETP\t"; + cond = ACCESS_FLAG(F_PF); + break; + case 0x9b: + name = "SETNP\t"; + cond = !ACCESS_FLAG(F_PF); + break; + case 0x9c: + name = "SETL\t"; + cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); + break; + case 0x9d: + name = "SETNL\t"; + cond = !xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); + break; + case 0x9e: + name = "SETLE\t"; + cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || + ACCESS_FLAG(F_ZF)); + break; + case 0x9f: + name = "SETNLE\t"; + cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || + ACCESS_FLAG(F_ZF)); + break; + } + DECODE_PRINTF(name); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + TRACE_AND_STEP(); + store_data_byte(destoffset, cond ? 0x01 : 0x00); + } else { /* register to register */ + destreg = DECODE_RM_BYTE_REGISTER(rl); + TRACE_AND_STEP(); + *destreg = cond ? 0x01 : 0x00; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -301,12 +257,12 @@ Handles opcode 0x0f,0xa0 ****************************************************************************/ void x86emuOp2_push_FS(u8 X86EMU_UNUSED(op2)) { - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tFS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_FS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("PUSH\tFS\n"); + TRACE_AND_STEP(); + push_word(M.x86.R_FS); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -315,12 +271,12 @@ Handles opcode 0x0f,0xa1 ****************************************************************************/ void x86emuOp2_pop_FS(u8 X86EMU_UNUSED(op2)) { - START_OF_INSTR(); - DECODE_PRINTF("POP\tFS\n"); - TRACE_AND_STEP(); - M.x86.R_FS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("POP\tFS\n"); + TRACE_AND_STEP(); + M.x86.R_FS = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -329,119 +285,61 @@ Handles opcode 0x0f,0xa3 ****************************************************************************/ void x86emuOp2_bt_R(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - int bit, disp; - - START_OF_INSTR(); - DECODE_PRINTF("BT\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF); - } else { - u16 srcval; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF); - } else { - u16 srcval; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF); - } else { - u16 srcval; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg, *shiftreg; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit), F_CF); - } else { - u16 *srcreg, *shiftreg; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit), F_CF); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + int bit,disp; + + START_OF_INSTR(); + DECODE_PRINTF("BT\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 srcval; + u32 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + disp = (s16)*shiftreg >> 5; + srcval = fetch_data_long(srcoffset+disp); + CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); + } else { + u16 srcval; + u16 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + disp = (s16)*shiftreg >> 4; + srcval = fetch_data_word(srcoffset+disp); + CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg,*shiftreg; + + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit),F_CF); + } else { + u16 *srcreg,*shiftreg; + + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit),F_CF); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -450,135 +348,69 @@ Handles opcode 0x0f,0xa4 ****************************************************************************/ void x86emuOp2_shld_IMM(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint destoffset; - u8 shift; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval, *shiftreg, shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval, *shiftreg, shift); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval, *shiftreg, shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval, *shiftreg, shift); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval, *shiftreg, shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval, *shiftreg, shift); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shld_long(*destreg, *shiftreg, shift); - } else { - u16 *destreg, *shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shld_word(*destreg, *shiftreg, shift); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + u8 shift; + + START_OF_INSTR(); + DECODE_PRINTF("SHLD\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + u32 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + destval = fetch_data_long(destoffset); + destval = shld_long(destval,*shiftreg,shift); + store_data_long(destoffset, destval); + } else { + u16 destval; + u16 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + destval = fetch_data_word(destoffset); + destval = shld_word(destval,*shiftreg,shift); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*shiftreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + *destreg = shld_long(*destreg,*shiftreg,shift); + } else { + u16 *destreg,*shiftreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + *destreg = shld_word(*destreg,*shiftreg,shift); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -587,118 +419,60 @@ Handles opcode 0x0f,0xa5 ****************************************************************************/ void x86emuOp2_shld_CL(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval, *shiftreg, M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval, *shiftreg, M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval, *shiftreg, M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval, *shiftreg, M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval, *shiftreg, M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval, *shiftreg, M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shld_long(*destreg, *shiftreg, M.x86.R_CL); - } else { - u16 *destreg, *shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shld_word(*destreg, *shiftreg, M.x86.R_CL); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("SHLD\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + u32 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + destval = fetch_data_long(destoffset); + destval = shld_long(destval,*shiftreg,M.x86.R_CL); + store_data_long(destoffset, destval); + } else { + u16 destval; + u16 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + destval = fetch_data_word(destoffset); + destval = shld_word(destval,*shiftreg,M.x86.R_CL); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*shiftreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + *destreg = shld_long(*destreg,*shiftreg,M.x86.R_CL); + } else { + u16 *destreg,*shiftreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + *destreg = shld_word(*destreg,*shiftreg,M.x86.R_CL); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -707,12 +481,12 @@ Handles opcode 0x0f,0xa8 ****************************************************************************/ void x86emuOp2_push_GS(u8 X86EMU_UNUSED(op2)) { - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tGS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_GS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("PUSH\tGS\n"); + TRACE_AND_STEP(); + push_word(M.x86.R_GS); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -721,12 +495,12 @@ Handles opcode 0x0f,0xa9 ****************************************************************************/ void x86emuOp2_pop_GS(u8 X86EMU_UNUSED(op2)) { - START_OF_INSTR(); - DECODE_PRINTF("POP\tGS\n"); - TRACE_AND_STEP(); - M.x86.R_GS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + START_OF_INSTR(); + DECODE_PRINTF("POP\tGS\n"); + TRACE_AND_STEP(); + M.x86.R_GS = pop_word(); + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -735,137 +509,71 @@ Handles opcode 0x0f,0xaa ****************************************************************************/ void x86emuOp2_bts_R(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - int bit, disp; - - START_OF_INSTR(); - DECODE_PRINTF("BTS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval | mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, srcval | mask); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval | mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, srcval | mask); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval | mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, srcval | mask); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg, *shiftreg; - u32 mask; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - *srcreg |= mask; - } else { - u16 *srcreg, *shiftreg; - u16 mask; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - *srcreg |= mask; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + int bit,disp; + + START_OF_INSTR(); + DECODE_PRINTF("BTS\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 srcval,mask; + u32 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + disp = (s16)*shiftreg >> 5; + srcval = fetch_data_long(srcoffset+disp); + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + store_data_long(srcoffset+disp, srcval | mask); + } else { + u16 srcval,mask; + u16 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + disp = (s16)*shiftreg >> 4; + srcval = fetch_data_word(srcoffset+disp); + mask = (u16)(0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + store_data_word(srcoffset+disp, srcval | mask); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg,*shiftreg; + u32 mask; + + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + *srcreg |= mask; + } else { + u16 *srcreg,*shiftreg; + u16 mask; + + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + mask = (u16)(0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + *srcreg |= mask; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -874,135 +582,69 @@ Handles opcode 0x0f,0xac ****************************************************************************/ void x86emuOp2_shrd_IMM(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint destoffset; - u8 shift; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval, *shiftreg, shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval, *shiftreg, shift); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval, *shiftreg, shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval, *shiftreg, shift); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval, *shiftreg, shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval, *shiftreg, shift); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shrd_long(*destreg, *shiftreg, shift); - } else { - u16 *destreg, *shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shrd_word(*destreg, *shiftreg, shift); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + u8 shift; + + START_OF_INSTR(); + DECODE_PRINTF("SHLD\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + u32 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + destval = fetch_data_long(destoffset); + destval = shrd_long(destval,*shiftreg,shift); + store_data_long(destoffset, destval); + } else { + u16 destval; + u16 *shiftreg; + + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + destval = fetch_data_word(destoffset); + destval = shrd_word(destval,*shiftreg,shift); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*shiftreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + *destreg = shrd_long(*destreg,*shiftreg,shift); + } else { + u16 *destreg,*shiftreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + shift = fetch_byte_imm(); + DECODE_PRINTF2("%d\n", shift); + TRACE_AND_STEP(); + *destreg = shrd_word(*destreg,*shiftreg,shift); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1011,118 +653,59 @@ Handles opcode 0x0f,0xad ****************************************************************************/ void x86emuOp2_shrd_CL(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval, *shiftreg, M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval, *shiftreg, M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval, *shiftreg, M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval, *shiftreg, M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval, *shiftreg, M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval, *shiftreg, M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shrd_long(*destreg, *shiftreg, M.x86.R_CL); - } else { - u16 *destreg, *shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shrd_word(*destreg, *shiftreg, M.x86.R_CL); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint destoffset; + + START_OF_INSTR(); + DECODE_PRINTF("SHLD\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 destval; + u32 *shiftreg; + + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + destval = fetch_data_long(destoffset); + destval = shrd_long(destval,*shiftreg,M.x86.R_CL); + store_data_long(destoffset, destval); + } else { + u16 destval; + u16 *shiftreg; + + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + destval = fetch_data_word(destoffset); + destval = shrd_word(destval,*shiftreg,M.x86.R_CL); + store_data_word(destoffset, destval); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*shiftreg; + + destreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + *destreg = shrd_long(*destreg,*shiftreg,M.x86.R_CL); + } else { + u16 *destreg,*shiftreg; + + destreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(",CL\n"); + TRACE_AND_STEP(); + *destreg = shrd_word(*destreg,*shiftreg,M.x86.R_CL); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1131,176 +714,90 @@ Handles opcode 0x0f,0xaf ****************************************************************************/ void x86emuOp2_imul_R_RM(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("IMUL\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - TRACE_AND_STEP(); - res = (s16) * destreg * (s16) srcval; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - TRACE_AND_STEP(); - res = (s16) * destreg * (s16) srcval; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - TRACE_AND_STEP(); - res = (s16) * destreg * (s16) srcval; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - u32 res_lo, res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - TRACE_AND_STEP(); - imul_long_direct(&res_lo, &res_hi, (s32) * destreg, - (s32) * srcreg); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32) res_lo; - } else { - u16 *destreg, *srcreg; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - res = (s16) * destreg * (s16) * srcreg; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16) res; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("IMUL\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 srcval; + u32 res_lo,res_hi; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_long(srcoffset); + TRACE_AND_STEP(); + imul_long_direct(&res_lo,&res_hi,(s32)*destreg,(s32)srcval); + if (res_hi != 0) { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } else { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } + *destreg = (u32)res_lo; + } else { + u16 *destreg; + u16 srcval; + u32 res; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_word(srcoffset); + TRACE_AND_STEP(); + res = (s16)*destreg * (s16)srcval; + if (res > 0xFFFF) { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } else { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } + *destreg = (u16)res; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg,*srcreg; + u32 res_lo,res_hi; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_LONG_REGISTER(rl); + TRACE_AND_STEP(); + imul_long_direct(&res_lo,&res_hi,(s32)*destreg,(s32)*srcreg); + if (res_hi != 0) { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } else { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } + *destreg = (u32)res_lo; + } else { + u16 *destreg,*srcreg; + u32 res; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + res = (s16)*destreg * (s16)*srcreg; + if (res > 0xFFFF) { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } else { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } + *destreg = (u16)res; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1309,47 +806,27 @@ Handles opcode 0x0f,0xb2 ****************************************************************************/ void x86emuOp2_lss_R_IMM(u8 X86EMU_UNUSED(op2)) { - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LSS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_SS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_SS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_SS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rh, rl; + u16 *dstreg; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("LSS\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + dstreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *dstreg = fetch_data_word(srcoffset); + M.x86.R_SS = fetch_data_word(srcoffset + 2); + } else { /* register to register */ + /* UNDEFINED! */ + TRACE_AND_STEP(); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1358,137 +835,70 @@ Handles opcode 0x0f,0xb3 ****************************************************************************/ void x86emuOp2_btr_R(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - int bit, disp; - - START_OF_INSTR(); - DECODE_PRINTF("BTR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval & ~mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, (u16) (srcval & ~mask)); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval & ~mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, (u16) (srcval & ~mask)); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval & ~mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, (u16) (srcval & ~mask)); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg, *shiftreg; - u32 mask; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - *srcreg &= ~mask; - } else { - u16 *srcreg, *shiftreg; - u16 mask; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - *srcreg &= ~mask; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + int bit,disp; + + START_OF_INSTR(); + DECODE_PRINTF("BTR\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 srcval,mask; + u32 *shiftreg; + + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + disp = (s16)*shiftreg >> 5; + srcval = fetch_data_long(srcoffset+disp); + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + store_data_long(srcoffset+disp, srcval & ~mask); + } else { + u16 srcval,mask; + u16 *shiftreg; + + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + disp = (s16)*shiftreg >> 4; + srcval = fetch_data_word(srcoffset+disp); + mask = (u16)(0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + store_data_word(srcoffset+disp, (u16)(srcval & ~mask)); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg,*shiftreg; + u32 mask; + + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + *srcreg &= ~mask; + } else { + u16 *srcreg,*shiftreg; + u16 mask; + + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + mask = (u16)(0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + *srcreg &= ~mask; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1497,47 +907,27 @@ Handles opcode 0x0f,0xb4 ****************************************************************************/ void x86emuOp2_lfs_R_IMM(u8 X86EMU_UNUSED(op2)) { - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LFS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_FS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_FS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_FS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rh, rl; + u16 *dstreg; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("LFS\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + dstreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *dstreg = fetch_data_word(srcoffset); + M.x86.R_FS = fetch_data_word(srcoffset + 2); + } else { /* register to register */ + /* UNDEFINED! */ + TRACE_AND_STEP(); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1546,47 +936,27 @@ Handles opcode 0x0f,0xb5 ****************************************************************************/ void x86emuOp2_lgs_R_IMM(u8 X86EMU_UNUSED(op2)) { - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LGS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_GS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_GS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_GS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rh, rl; + u16 *dstreg; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("LGS\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + dstreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *dstreg = fetch_data_word(srcoffset); + M.x86.R_GS = fetch_data_word(srcoffset + 2); + } else { /* register to register */ + /* UNDEFINED! */ + TRACE_AND_STEP(); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1595,114 +965,61 @@ Handles opcode 0x0f,0xb6 ****************************************************************************/ void x86emuOp2_movzx_byte_R_RM(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOVZX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } else { - u16 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("MOVZX\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 srcval; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_byte(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } else { + u16 *destreg; + u16 srcval; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_byte(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u8 *srcreg; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } else { + u16 *destreg; + u8 *srcreg; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1711,54 +1028,33 @@ Handles opcode 0x0f,0xb7 ****************************************************************************/ void x86emuOp2_movzx_word_R_RM(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - u32 *destreg; - u32 srcval; - u16 *srcreg; - - START_OF_INSTR(); - DECODE_PRINTF("MOVZX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + u32 *destreg; + u32 srcval; + u16 *srcreg; + + START_OF_INSTR(); + DECODE_PRINTF("MOVZX\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = fetch_data_word(srcoffset); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } else { /* register to register */ + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = *srcreg; + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -1767,248 +1063,134 @@ Handles opcode 0x0f,0xba ****************************************************************************/ void x86emuOp2_btX_I(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - int bit; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (rh) { - case 3: - DECODE_PRINTF("BT\t"); - break; - case 4: - DECODE_PRINTF("BTS\t"); - break; - case 5: - DECODE_PRINTF("BTR\t"); - break; - case 6: - DECODE_PRINTF("BTC\t"); - break; - default: - DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n"); - TRACE_REGS(); - printk("%04x:%04x: %02X%02X ILLEGAL EXTENDED X86 OPCODE EXTENSION!\n", - M.x86.R_CS, M.x86.R_IP - 3, op2, (mod << 6) | (rh << 3) | rl); - HALT_SYS(); - } - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u8 shift; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - srcval = fetch_data_long(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - switch (rh) { - case 4: - store_data_long(srcoffset, srcval | mask); - break; - case 5: - store_data_long(srcoffset, srcval & ~mask); - break; - case 6: - store_data_long(srcoffset, srcval ^ mask); - break; - default: - break; - } - } else { - u16 srcval, mask; - u8 shift; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - srcval = fetch_data_word(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - switch (rh) { - case 4: - store_data_word(srcoffset, srcval | mask); - break; - case 5: - store_data_word(srcoffset, srcval & ~mask); - break; - case 6: - store_data_word(srcoffset, srcval ^ mask); - break; - default: - break; - } - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u8 shift; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - srcval = fetch_data_long(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - switch (rh) { - case 4: - store_data_long(srcoffset, srcval | mask); - break; - case 5: - store_data_long(srcoffset, srcval & ~mask); - break; - case 6: - store_data_long(srcoffset, srcval ^ mask); - break; - default: - break; - } - } else { - u16 srcval, mask; - u8 shift; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - srcval = fetch_data_word(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - switch (rh) { - case 4: - store_data_word(srcoffset, srcval | mask); - break; - case 5: - store_data_word(srcoffset, srcval & ~mask); - break; - case 6: - store_data_word(srcoffset, srcval ^ mask); - break; - default: - break; - } - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u8 shift; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - srcval = fetch_data_long(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - switch (rh) { - case 4: - store_data_long(srcoffset, srcval | mask); - break; - case 5: - store_data_long(srcoffset, srcval & ~mask); - break; - case 6: - store_data_long(srcoffset, srcval ^ mask); - break; - default: - break; - } - } else { - u16 srcval, mask; - u8 shift; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - srcval = fetch_data_word(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - switch (rh) { - case 4: - store_data_word(srcoffset, srcval | mask); - break; - case 5: - store_data_word(srcoffset, srcval & ~mask); - break; - case 6: - store_data_word(srcoffset, srcval ^ mask); - break; - default: - break; - } - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 mask; - u8 shift; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - switch (rh) { - case 4: - *srcreg |= mask; - break; - case 5: - *srcreg &= ~mask; - break; - case 6: - *srcreg ^= mask; - break; - default: - break; - } - } else { - u16 *srcreg; - u16 mask; - u8 shift; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - switch (rh) { - case 4: - *srcreg |= mask; - break; - case 5: - *srcreg &= ~mask; - break; - case 6: - *srcreg ^= mask; - break; - default: - break; - } - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + u8 shift; + int bit; + + START_OF_INSTR(); + FETCH_DECODE_MODRM(mod, rh, rl); + switch (rh) { + case 4: + DECODE_PRINTF("BT\t"); + break; + case 5: + DECODE_PRINTF("BTS\t"); + break; + case 6: + DECODE_PRINTF("BTR\t"); + break; + case 7: + DECODE_PRINTF("BTC\t"); + break; + default: + DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n"); + TRACE_REGS(); + printk("%04x:%04x: %02X%02X ILLEGAL EXTENDED X86 OPCODE EXTENSION!\n", + M.x86.R_CS, M.x86.R_IP-3,op2, (mod<<6)|(rh<<3)|rl); + HALT_SYS(); + } + if (mod < 3) { + + srcoffset = decode_rmXX_address(mod, rl); + shift = fetch_byte_imm(); + DECODE_PRINTF2(",%d\n", shift); + TRACE_AND_STEP(); + + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 srcval, mask; + + bit = shift & 0x1F; + srcval = fetch_data_long(srcoffset); + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + switch (rh) { + case 5: + store_data_long(srcoffset, srcval | mask); + break; + case 6: + store_data_long(srcoffset, srcval & ~mask); + break; + case 7: + store_data_long(srcoffset, srcval ^ mask); + break; + default: + break; + } + } else { + u16 srcval, mask; + + bit = shift & 0xF; + srcval = fetch_data_word(srcoffset); + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + switch (rh) { + case 5: + store_data_word(srcoffset, srcval | mask); + break; + case 6: + store_data_word(srcoffset, srcval & ~mask); + break; + case 7: + store_data_word(srcoffset, srcval ^ mask); + break; + default: + break; + } + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg; + u32 mask; + + srcreg = DECODE_RM_LONG_REGISTER(rl); + shift = fetch_byte_imm(); + DECODE_PRINTF2(",%d\n", shift); + TRACE_AND_STEP(); + bit = shift & 0x1F; + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + switch (rh) { + case 5: + *srcreg |= mask; + break; + case 6: + *srcreg &= ~mask; + break; + case 7: + *srcreg ^= mask; + break; + default: + break; + } + } else { + u16 *srcreg; + u16 mask; + + srcreg = DECODE_RM_WORD_REGISTER(rl); + shift = fetch_byte_imm(); + DECODE_PRINTF2(",%d\n", shift); + TRACE_AND_STEP(); + bit = shift & 0xF; + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + switch (rh) { + case 5: + *srcreg |= mask; + break; + case 6: + *srcreg &= ~mask; + break; + case 7: + *srcreg ^= mask; + break; + default: + break; + } + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -2017,137 +1199,70 @@ Handles opcode 0x0f,0xbb ****************************************************************************/ void x86emuOp2_btc_R(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - int bit, disp; - - START_OF_INSTR(); - DECODE_PRINTF("BTC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval ^ mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, (u16) (srcval ^ mask)); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval ^ mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, (u16) (srcval ^ mask)); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16) * shiftreg >> 5; - srcval = fetch_data_long(srcoffset + disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_long(srcoffset + disp, srcval ^ mask); - } else { - u16 srcval, mask; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16) * shiftreg >> 4; - srcval = fetch_data_word(srcoffset + disp); - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask, F_CF); - store_data_word(srcoffset + disp, (u16) (srcval ^ mask)); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg, *shiftreg; - u32 mask; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - *srcreg ^= mask; - } else { - u16 *srcreg, *shiftreg; - u16 mask; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - mask = (u16) (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF); - *srcreg ^= mask; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + int bit,disp; + + START_OF_INSTR(); + DECODE_PRINTF("BTC\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 srcval,mask; + u32 *shiftreg; + + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + disp = (s16)*shiftreg >> 5; + srcval = fetch_data_long(srcoffset+disp); + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + store_data_long(srcoffset+disp, srcval ^ mask); + } else { + u16 srcval,mask; + u16 *shiftreg; + + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + disp = (s16)*shiftreg >> 4; + srcval = fetch_data_word(srcoffset+disp); + mask = (u16)(0x1 << bit); + CONDITIONAL_SET_FLAG(srcval & mask,F_CF); + store_data_word(srcoffset+disp, (u16)(srcval ^ mask)); + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg,*shiftreg; + u32 mask; + + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0x1F; + mask = (0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + *srcreg ^= mask; + } else { + u16 *srcreg,*shiftreg; + u16 mask; + + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + shiftreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + bit = *shiftreg & 0xF; + mask = (u16)(0x1 << bit); + CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); + *srcreg ^= mask; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -2156,122 +1271,59 @@ Handles opcode 0x0f,0xbc ****************************************************************************/ void x86emuOp2_bsf(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("BSF\n"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((srcval >> *dstreg) & 1) - break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((srcval >> *dstreg) & 1) - break; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((srcval >> *dstreg) & 1) - break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((srcval >> *dstreg) & 1) - break; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((srcval >> *dstreg) & 1) - break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((srcval >> *dstreg) & 1) - break; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg, *dstreg; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); - for (*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((*srcreg >> *dstreg) & 1) - break; - } else { - u16 *srcreg, *dstreg; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); - for (*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((*srcreg >> *dstreg) & 1) - break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("BSF\n"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 srcval, *dstreg; + + dstreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + srcval = fetch_data_long(srcoffset); + CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); + for(*dstreg = 0; *dstreg < 32; (*dstreg)++) + if ((srcval >> *dstreg) & 1) break; + } else { + u16 srcval, *dstreg; + + dstreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + srcval = fetch_data_word(srcoffset); + CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); + for(*dstreg = 0; *dstreg < 16; (*dstreg)++) + if ((srcval >> *dstreg) & 1) break; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg, *dstreg; + + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + dstreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); + for(*dstreg = 0; *dstreg < 32; (*dstreg)++) + if ((*srcreg >> *dstreg) & 1) break; + } else { + u16 *srcreg, *dstreg; + + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + dstreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); + for(*dstreg = 0; *dstreg < 16; (*dstreg)++) + if ((*srcreg >> *dstreg) & 1) break; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -2280,122 +1332,59 @@ Handles opcode 0x0f,0xbd ****************************************************************************/ void x86emuOp2_bsr(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("BSF\n"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) - break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) - break; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) - break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) - break; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) - break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for (*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) - break; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg, *dstreg; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); - for (*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((*srcreg >> *dstreg) & 1) - break; - } else { - u16 *srcreg, *dstreg; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); - for (*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((*srcreg >> *dstreg) & 1) - break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("BSF\n"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + srcoffset = decode_rmXX_address(mod, rl); + DECODE_PRINTF(","); + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 srcval, *dstreg; + + dstreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + srcval = fetch_data_long(srcoffset); + CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); + for(*dstreg = 31; *dstreg > 0; (*dstreg)--) + if ((srcval >> *dstreg) & 1) break; + } else { + u16 srcval, *dstreg; + + dstreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + srcval = fetch_data_word(srcoffset); + CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); + for(*dstreg = 15; *dstreg > 0; (*dstreg)--) + if ((srcval >> *dstreg) & 1) break; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *srcreg, *dstreg; + + srcreg = DECODE_RM_LONG_REGISTER(rl); + DECODE_PRINTF(","); + dstreg = DECODE_RM_LONG_REGISTER(rh); + TRACE_AND_STEP(); + CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); + for(*dstreg = 31; *dstreg > 0; (*dstreg)--) + if ((*srcreg >> *dstreg) & 1) break; + } else { + u16 *srcreg, *dstreg; + + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF(","); + dstreg = DECODE_RM_WORD_REGISTER(rh); + TRACE_AND_STEP(); + CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF); + for(*dstreg = 15; *dstreg > 0; (*dstreg)--) + if ((*srcreg >> *dstreg) & 1) break; + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -2404,114 +1393,61 @@ Handles opcode 0x0f,0xbe ****************************************************************************/ void x86emuOp2_movsx_byte_R_RM(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOVSX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = (s32) ((s8) fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = (s16) ((s8) fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = (s32) ((s8) fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = (s16) ((s8) fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = (s32) ((s8) fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = (s16) ((s8) fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = (s32) ((s8) * srcreg); - } else { - u16 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = (s16) ((s8) * srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + + START_OF_INSTR(); + DECODE_PRINTF("MOVSX\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u32 srcval; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = (s32)((s8)fetch_data_byte(srcoffset)); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } else { + u16 *destreg; + u16 srcval; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = (s16)((s8)fetch_data_byte(srcoffset)); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } + } else { /* register to register */ + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + u32 *destreg; + u8 *srcreg; + + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = (s32)((s8)*srcreg); + } else { + u16 *destreg; + u8 *srcreg; + + destreg = DECODE_RM_WORD_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_BYTE_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = (s16)((s8)*srcreg); + } + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /**************************************************************************** @@ -2520,85 +1456,57 @@ Handles opcode 0x0f,0xbf ****************************************************************************/ void x86emuOp2_movsx_word_R_RM(u8 X86EMU_UNUSED(op2)) { - int mod, rl, rh; - uint srcoffset; - u32 *destreg; - u32 srcval; - u16 *srcreg; - - START_OF_INSTR(); - DECODE_PRINTF("MOVSX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = (s32) ((s16) fetch_data_word(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = (s32) ((s16) fetch_data_word(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = (s32) ((s16) fetch_data_word(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = (s32) ((s16) * srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); + int mod, rl, rh; + uint srcoffset; + u32 *destreg; + u32 srcval; + u16 *srcreg; + + START_OF_INSTR(); + DECODE_PRINTF("MOVSX\t"); + FETCH_DECODE_MODRM(mod, rh, rl); + if (mod < 3) { + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcoffset = decode_rmXX_address(mod, rl); + srcval = (s32)((s16)fetch_data_word(srcoffset)); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = srcval; + } else { /* register to register */ + destreg = DECODE_RM_LONG_REGISTER(rh); + DECODE_PRINTF(","); + srcreg = DECODE_RM_WORD_REGISTER(rl); + DECODE_PRINTF("\n"); + TRACE_AND_STEP(); + *destreg = (s32)((s16)*srcreg); + } + DECODE_CLEAR_SEGOVR(); + END_OF_INSTR(); } /*************************************************************************** * Double byte operation code table: **************************************************************************/ -void (*x86emu_optab2[256]) (u8) = { - /* 0x00 */ x86emuOp2_illegal_op, - /* Group F (ring 0 PM) */ - /* 0x01 */ x86emuOp2_illegal_op, - /* Group G (ring 0 PM) */ - /* 0x02 */ x86emuOp2_illegal_op, - /* lar (ring 0 PM) */ - /* 0x03 */ x86emuOp2_illegal_op, - /* lsl (ring 0 PM) */ +void (*x86emu_optab2[256])(u8) = +{ +/* 0x00 */ x86emuOp2_illegal_op, /* Group F (ring 0 PM) */ +/* 0x01 */ x86emuOp2_illegal_op, /* Group G (ring 0 PM) */ +/* 0x02 */ x86emuOp2_illegal_op, /* lar (ring 0 PM) */ +/* 0x03 */ x86emuOp2_illegal_op, /* lsl (ring 0 PM) */ /* 0x04 */ x86emuOp2_illegal_op, - /* 0x05 */ x86emuOp2_illegal_op, - /* loadall (undocumented) */ - /* 0x06 */ x86emuOp2_illegal_op, - /* clts (ring 0 PM) */ - /* 0x07 */ x86emuOp2_illegal_op, - /* loadall (undocumented) */ - /* 0x08 */ x86emuOp2_illegal_op, - /* invd (ring 0 PM) */ - /* 0x09 */ x86emuOp2_illegal_op, - /* wbinvd (ring 0 PM) */ +/* 0x05 */ x86emuOp2_illegal_op, /* loadall (undocumented) */ +/* 0x06 */ x86emuOp2_illegal_op, /* clts (ring 0 PM) */ +/* 0x07 */ x86emuOp2_illegal_op, /* loadall (undocumented) */ +/* 0x08 */ x86emuOp2_illegal_op, /* invd (ring 0 PM) */ +/* 0x09 */ x86emuOp2_illegal_op, /* wbinvd (ring 0 PM) */ /* 0x0a */ x86emuOp2_illegal_op, /* 0x0b */ x86emuOp2_illegal_op, /* 0x0c */ x86emuOp2_illegal_op, /* 0x0d */ x86emuOp2_illegal_op, /* 0x0e */ x86emuOp2_illegal_op, /* 0x0f */ x86emuOp2_illegal_op, + /* 0x10 */ x86emuOp2_illegal_op, /* 0x11 */ x86emuOp2_illegal_op, /* 0x12 */ x86emuOp2_illegal_op, @@ -2615,19 +1523,14 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x1d */ x86emuOp2_illegal_op, /* 0x1e */ x86emuOp2_illegal_op, /* 0x1f */ x86emuOp2_illegal_op, - /* 0x20 */ x86emuOp2_illegal_op, - /* mov reg32,creg (ring 0 PM) */ - /* 0x21 */ x86emuOp2_illegal_op, - /* mov reg32,dreg (ring 0 PM) */ - /* 0x22 */ x86emuOp2_illegal_op, - /* mov creg,reg32 (ring 0 PM) */ - /* 0x23 */ x86emuOp2_illegal_op, - /* mov dreg,reg32 (ring 0 PM) */ - /* 0x24 */ x86emuOp2_illegal_op, - /* mov reg32,treg (ring 0 PM) */ + +/* 0x20 */ x86emuOp2_illegal_op, /* mov reg32,creg (ring 0 PM) */ +/* 0x21 */ x86emuOp2_illegal_op, /* mov reg32,dreg (ring 0 PM) */ +/* 0x22 */ x86emuOp2_illegal_op, /* mov creg,reg32 (ring 0 PM) */ +/* 0x23 */ x86emuOp2_illegal_op, /* mov dreg,reg32 (ring 0 PM) */ +/* 0x24 */ x86emuOp2_illegal_op, /* mov reg32,treg (ring 0 PM) */ /* 0x25 */ x86emuOp2_illegal_op, - /* 0x26 */ x86emuOp2_illegal_op, - /* mov treg,reg32 (ring 0 PM) */ +/* 0x26 */ x86emuOp2_illegal_op, /* mov treg,reg32 (ring 0 PM) */ /* 0x27 */ x86emuOp2_illegal_op, /* 0x28 */ x86emuOp2_illegal_op, /* 0x29 */ x86emuOp2_illegal_op, @@ -2637,8 +1540,9 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x2d */ x86emuOp2_illegal_op, /* 0x2e */ x86emuOp2_illegal_op, /* 0x2f */ x86emuOp2_illegal_op, + /* 0x30 */ x86emuOp2_illegal_op, -/* 0x31 */ x86emuOp2_rdtsc, +/* 0x31 */ x86emuOp2_illegal_op, /* 0x32 */ x86emuOp2_illegal_op, /* 0x33 */ x86emuOp2_illegal_op, /* 0x34 */ x86emuOp2_illegal_op, @@ -2653,6 +1557,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x3d */ x86emuOp2_illegal_op, /* 0x3e */ x86emuOp2_illegal_op, /* 0x3f */ x86emuOp2_illegal_op, + /* 0x40 */ x86emuOp2_illegal_op, /* 0x41 */ x86emuOp2_illegal_op, /* 0x42 */ x86emuOp2_illegal_op, @@ -2669,6 +1574,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x4d */ x86emuOp2_illegal_op, /* 0x4e */ x86emuOp2_illegal_op, /* 0x4f */ x86emuOp2_illegal_op, + /* 0x50 */ x86emuOp2_illegal_op, /* 0x51 */ x86emuOp2_illegal_op, /* 0x52 */ x86emuOp2_illegal_op, @@ -2685,6 +1591,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x5d */ x86emuOp2_illegal_op, /* 0x5e */ x86emuOp2_illegal_op, /* 0x5f */ x86emuOp2_illegal_op, + /* 0x60 */ x86emuOp2_illegal_op, /* 0x61 */ x86emuOp2_illegal_op, /* 0x62 */ x86emuOp2_illegal_op, @@ -2701,6 +1608,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x6d */ x86emuOp2_illegal_op, /* 0x6e */ x86emuOp2_illegal_op, /* 0x6f */ x86emuOp2_illegal_op, + /* 0x70 */ x86emuOp2_illegal_op, /* 0x71 */ x86emuOp2_illegal_op, /* 0x72 */ x86emuOp2_illegal_op, @@ -2717,6 +1625,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x7d */ x86emuOp2_illegal_op, /* 0x7e */ x86emuOp2_illegal_op, /* 0x7f */ x86emuOp2_illegal_op, + /* 0x80 */ x86emuOp2_long_jump, /* 0x81 */ x86emuOp2_long_jump, /* 0x82 */ x86emuOp2_long_jump, @@ -2733,6 +1642,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x8d */ x86emuOp2_long_jump, /* 0x8e */ x86emuOp2_long_jump, /* 0x8f */ x86emuOp2_long_jump, + /* 0x90 */ x86emuOp2_set_byte, /* 0x91 */ x86emuOp2_set_byte, /* 0x92 */ x86emuOp2_set_byte, @@ -2749,6 +1659,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0x9d */ x86emuOp2_set_byte, /* 0x9e */ x86emuOp2_set_byte, /* 0x9f */ x86emuOp2_set_byte, + /* 0xa0 */ x86emuOp2_push_FS, /* 0xa1 */ x86emuOp2_pop_FS, /* 0xa2 */ x86emuOp2_illegal_op, @@ -2765,10 +1676,9 @@ void (*x86emu_optab2[256]) (u8) = { /* 0xad */ x86emuOp2_shrd_CL, /* 0xae */ x86emuOp2_illegal_op, /* 0xaf */ x86emuOp2_imul_R_RM, - /* 0xb0 */ x86emuOp2_illegal_op, - /* TODO: cmpxchg */ - /* 0xb1 */ x86emuOp2_illegal_op, - /* TODO: cmpxchg */ + +/* 0xb0 */ x86emuOp2_illegal_op, /* TODO: cmpxchg */ +/* 0xb1 */ x86emuOp2_illegal_op, /* TODO: cmpxchg */ /* 0xb2 */ x86emuOp2_lss_R_IMM, /* 0xb3 */ x86emuOp2_btr_R, /* 0xb4 */ x86emuOp2_lfs_R_IMM, @@ -2783,32 +1693,24 @@ void (*x86emu_optab2[256]) (u8) = { /* 0xbd */ x86emuOp2_bsr, /* 0xbe */ x86emuOp2_movsx_byte_R_RM, /* 0xbf */ x86emuOp2_movsx_word_R_RM, - /* 0xc0 */ x86emuOp2_illegal_op, - /* TODO: xadd */ - /* 0xc1 */ x86emuOp2_illegal_op, - /* TODO: xadd */ + +/* 0xc0 */ x86emuOp2_illegal_op, /* TODO: xadd */ +/* 0xc1 */ x86emuOp2_illegal_op, /* TODO: xadd */ /* 0xc2 */ x86emuOp2_illegal_op, /* 0xc3 */ x86emuOp2_illegal_op, /* 0xc4 */ x86emuOp2_illegal_op, /* 0xc5 */ x86emuOp2_illegal_op, /* 0xc6 */ x86emuOp2_illegal_op, /* 0xc7 */ x86emuOp2_illegal_op, - /* 0xc8 */ x86emuOp2_illegal_op, - /* TODO: bswap */ - /* 0xc9 */ x86emuOp2_illegal_op, - /* TODO: bswap */ - /* 0xca */ x86emuOp2_illegal_op, - /* TODO: bswap */ - /* 0xcb */ x86emuOp2_illegal_op, - /* TODO: bswap */ - /* 0xcc */ x86emuOp2_illegal_op, - /* TODO: bswap */ - /* 0xcd */ x86emuOp2_illegal_op, - /* TODO: bswap */ - /* 0xce */ x86emuOp2_illegal_op, - /* TODO: bswap */ - /* 0xcf */ x86emuOp2_illegal_op, - /* TODO: bswap */ +/* 0xc8 */ x86emuOp2_illegal_op, /* TODO: bswap */ +/* 0xc9 */ x86emuOp2_illegal_op, /* TODO: bswap */ +/* 0xca */ x86emuOp2_illegal_op, /* TODO: bswap */ +/* 0xcb */ x86emuOp2_illegal_op, /* TODO: bswap */ +/* 0xcc */ x86emuOp2_illegal_op, /* TODO: bswap */ +/* 0xcd */ x86emuOp2_illegal_op, /* TODO: bswap */ +/* 0xce */ x86emuOp2_illegal_op, /* TODO: bswap */ +/* 0xcf */ x86emuOp2_illegal_op, /* TODO: bswap */ + /* 0xd0 */ x86emuOp2_illegal_op, /* 0xd1 */ x86emuOp2_illegal_op, /* 0xd2 */ x86emuOp2_illegal_op, @@ -2825,6 +1727,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0xdd */ x86emuOp2_illegal_op, /* 0xde */ x86emuOp2_illegal_op, /* 0xdf */ x86emuOp2_illegal_op, + /* 0xe0 */ x86emuOp2_illegal_op, /* 0xe1 */ x86emuOp2_illegal_op, /* 0xe2 */ x86emuOp2_illegal_op, @@ -2841,6 +1744,7 @@ void (*x86emu_optab2[256]) (u8) = { /* 0xed */ x86emuOp2_illegal_op, /* 0xee */ x86emuOp2_illegal_op, /* 0xef */ x86emuOp2_illegal_op, + /* 0xf0 */ x86emuOp2_illegal_op, /* 0xf1 */ x86emuOp2_illegal_op, /* 0xf2 */ x86emuOp2_illegal_op, diff --git a/util/vgabios/x86emu/src/x86emu/prim_ops.c b/util/vgabios/x86emu/src/x86emu/prim_ops.c index d1d4be848c..914952bfc8 100644 --- a/util/vgabios/x86emu/src/x86emu/prim_ops.c +++ b/util/vgabios/x86emu/src/x86emu/prim_ops.c @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,12 +28,12 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: This file contains the code to implement the primitive -* machine operations used by the emulation code in ops.c +* machine operations used by the emulation code in ops.c * * Carry Chain Calculation * @@ -97,32 +97,109 @@ * ****************************************************************************/ -#define PRIM_OPS_NO_REDEFINE_ASM +#define PRIM_OPS_NO_REDEFINE_ASM #include "x86emu/x86emui.h" /*------------------------- Global Variables ------------------------------*/ -#ifndef __HAVE_INLINE_ASSEMBLER__ - -static u32 x86emu_parity_tab[8] = { - 0x96696996, - 0x69969669, - 0x69969669, - 0x96696996, - 0x69969669, - 0x96696996, - 0x96696996, - 0x69969669, +static u32 x86emu_parity_tab[8] = +{ + 0x96696996, + 0x69969669, + 0x69969669, + 0x96696996, + 0x69969669, + 0x96696996, + 0x96696996, + 0x69969669, }; -#endif - #define PARITY(x) (((x86emu_parity_tab[(x) / 32] >> ((x) % 32)) & 1) == 0) -#define XOR2(x) (((x) ^ ((x)>>1)) & 0x1) +#define XOR2(x) (((x) ^ ((x)>>1)) & 0x1) /*----------------------------- Implementation ----------------------------*/ -#ifndef __HAVE_INLINE_ASSEMBLER__ + +/*--------- Side effects helper functions -------*/ + +/**************************************************************************** +REMARKS: +implements side efects for byte operations that don't overflow +****************************************************************************/ + +static void set_parity_flag(u32 res) +{ + CONDITIONAL_SET_FLAG(PARITY(res & 0xFF), F_PF); +} + +static void set_szp_flags_8(u8 res) +{ + CONDITIONAL_SET_FLAG(res & 0x80, F_SF); + CONDITIONAL_SET_FLAG(res == 0, F_ZF); + set_parity_flag(res); +} + +static void set_szp_flags_16(u16 res) +{ + CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); + CONDITIONAL_SET_FLAG(res == 0, F_ZF); + set_parity_flag(res); +} + +static void set_szp_flags_32(u32 res) +{ + CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); + CONDITIONAL_SET_FLAG(res == 0, F_ZF); + set_parity_flag(res); +} + +static void no_carry_byte_side_eff(u8 res) +{ + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_AF); + set_szp_flags_8(res); +} + +static void no_carry_word_side_eff(u16 res) +{ + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_AF); + set_szp_flags_16(res); +} + +static void no_carry_long_side_eff(u32 res) +{ + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_AF); + set_szp_flags_32(res); +} + +static void calc_carry_chain(int bits, u32 d, u32 s, u32 res, int set_carry) +{ + u32 cc; + + cc = (s & d) | ((~res) & (s | d)); + CONDITIONAL_SET_FLAG(XOR2(cc >> (bits - 2)), F_OF); + CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); + if (set_carry) { + CONDITIONAL_SET_FLAG(res & (1 << bits), F_CF); + } +} + +static void calc_borrow_chain(int bits, u32 d, u32 s, u32 res, int set_carry) +{ + u32 bc; + + bc = (res & (~d | s)) | (~d & s); + CONDITIONAL_SET_FLAG(XOR2(bc >> (bits - 2)), F_OF); + CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); + if (set_carry) { + CONDITIONAL_SET_FLAG(bc & (1 << (bits - 1)), F_CF); + } +} /**************************************************************************** REMARKS: @@ -130,21 +207,19 @@ Implements the AAA instruction and side effects. ****************************************************************************/ u16 aaa_word(u16 d) { - u16 res; - if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) { - d += 0x6; - d += 0x100; - SET_FLAG(F_AF); - SET_FLAG(F_CF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - } - res = (u16) (d & 0xFF0F); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; + u16 res; + if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) { + d += 0x6; + d += 0x100; + SET_FLAG(F_AF); + SET_FLAG(F_CF); + } else { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_AF); + } + res = (u16)(d & 0xFF0F); + set_szp_flags_16(res); + return res; } /**************************************************************************** @@ -153,21 +228,19 @@ Implements the AAA instruction and side effects. ****************************************************************************/ u16 aas_word(u16 d) { - u16 res; - if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) { - d -= 0x6; - d -= 0x100; - SET_FLAG(F_AF); - SET_FLAG(F_CF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - } - res = (u16) (d & 0xFF0F); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; + u16 res; + if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) { + d -= 0x6; + d -= 0x100; + SET_FLAG(F_AF); + SET_FLAG(F_CF); + } else { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_AF); + } + res = (u16)(d & 0xFF0F); + set_szp_flags_16(res); + return res; } /**************************************************************************** @@ -176,20 +249,15 @@ Implements the AAD instruction and side effects. ****************************************************************************/ u16 aad_word(u16 d) { - u16 l; - u8 hb, lb; + u16 l; + u8 hb, lb; - hb = (u8) ((d >> 8) & 0xff); - lb = (u8) ((d & 0xff)); - l = (u16) ((lb + 10 * hb) & 0xFF); + hb = (u8)((d >> 8) & 0xff); + lb = (u8)((d & 0xff)); + l = (u16)((lb + 10 * hb) & 0xFF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(l & 0x80, F_SF); - CONDITIONAL_SET_FLAG(l == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF); - return l; + no_carry_byte_side_eff(l & 0xFF); + return l; } /**************************************************************************** @@ -198,19 +266,14 @@ Implements the AAM instruction and side effects. ****************************************************************************/ u16 aam_word(u8 d) { - u16 h, l; + u16 h, l; - h = (u16) (d / 10); - l = (u16) (d % 10); - l |= (u16) (h << 8); + h = (u16)(d / 10); + l = (u16)(d % 10); + l |= (u16)(h << 8); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(l & 0x80, F_SF); - CONDITIONAL_SET_FLAG(l == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF); - return l; + no_carry_byte_side_eff(l & 0xFF); + return l; } /**************************************************************************** @@ -219,24 +282,15 @@ Implements the ADC instruction and side effects. ****************************************************************************/ u8 adc_byte(u8 d, u8 s) { - register u32 res; /* all operands in native machine order */ - register u32 cc; + u32 res; /* all operands in native machine order */ - if (ACCESS_FLAG(F_CF)) - res = 1 + d + s; - else - res = d + s; + res = d + s; + if (ACCESS_FLAG(F_CF)) res++; - CONDITIONAL_SET_FLAG(res & 0x100, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + set_szp_flags_8(res); + calc_carry_chain(8,s,d,res,1); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u8) res; + return (u8)res; } /**************************************************************************** @@ -245,24 +299,16 @@ Implements the ADC instruction and side effects. ****************************************************************************/ u16 adc_word(u16 d, u16 s) { - register u32 res; /* all operands in native machine order */ - register u32 cc; + u32 res; /* all operands in native machine order */ - if (ACCESS_FLAG(F_CF)) - res = 1 + d + s; - else - res = d + s; + res = d + s; + if (ACCESS_FLAG(F_CF)) + res++; - CONDITIONAL_SET_FLAG(res & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + set_szp_flags_16((u16)res); + calc_carry_chain(16,s,d,res,1); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u16) res; + return (u16)res; } /**************************************************************************** @@ -271,30 +317,26 @@ Implements the ADC instruction and side effects. ****************************************************************************/ u32 adc_long(u32 d, u32 s) { - register u32 lo; /* all operands in native machine order */ - register u32 hi; - register u32 res; - register u32 cc; + u32 lo; /* all operands in native machine order */ + u32 hi; + u32 res; - if (ACCESS_FLAG(F_CF)) { - lo = 1 + (d & 0xFFFF) + (s & 0xFFFF); - res = 1 + d + s; - } else { - lo = (d & 0xFFFF) + (s & 0xFFFF); - res = d + s; - } - hi = (lo >> 16) + (d >> 16) + (s >> 16); + lo = (d & 0xFFFF) + (s & 0xFFFF); + res = d + s; - CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + if (ACCESS_FLAG(F_CF)) { + lo++; + res++; + } - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return res; + hi = (lo >> 16) + (d >> 16) + (s >> 16); + + set_szp_flags_32(res); + calc_carry_chain(32,s,d,res,0); + + CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF); + + return res; } /**************************************************************************** @@ -303,20 +345,13 @@ Implements the ADD instruction and side effects. ****************************************************************************/ u8 add_byte(u8 d, u8 s) { - register u32 res; /* all operands in native machine order */ - register u32 cc; + u32 res; /* all operands in native machine order */ - res = d + s; - CONDITIONAL_SET_FLAG(res & 0x100, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d + s; + set_szp_flags_8((u8)res); + calc_carry_chain(8,s,d,res,1); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u8) res; + return (u8)res; } /**************************************************************************** @@ -325,20 +360,13 @@ Implements the ADD instruction and side effects. ****************************************************************************/ u16 add_word(u16 d, u16 s) { - register u32 res; /* all operands in native machine order */ - register u32 cc; + u32 res; /* all operands in native machine order */ - res = d + s; - CONDITIONAL_SET_FLAG(res & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d + s; + set_szp_flags_16((u16)res); + calc_carry_chain(16,s,d,res,1); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u16) res; + return (u16)res; } /**************************************************************************** @@ -347,26 +375,15 @@ Implements the ADD instruction and side effects. ****************************************************************************/ u32 add_long(u32 d, u32 s) { - register u32 lo; /* all operands in native machine order */ - register u32 hi; - register u32 res; - register u32 cc; + u32 res; - lo = (d & 0xFFFF) + (s & 0xFFFF); - res = d + s; - hi = (lo >> 16) + (d >> 16) + (s >> 16); + res = d + s; + set_szp_flags_32(res); + calc_carry_chain(32,s,d,res,0); - CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + CONDITIONAL_SET_FLAG(res < d || res < s, F_CF); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - - return res; + return res; } /**************************************************************************** @@ -375,18 +392,12 @@ Implements the AND instruction and side effects. ****************************************************************************/ u8 and_byte(u8 d, u8 s) { - register u8 res; /* all operands in native machine order */ + u8 res; /* all operands in native machine order */ - res = d & s; + res = d & s; - /* set the flags */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - return res; + no_carry_byte_side_eff(res); + return res; } /**************************************************************************** @@ -395,18 +406,12 @@ Implements the AND instruction and side effects. ****************************************************************************/ u16 and_word(u16 d, u16 s) { - register u16 res; /* all operands in native machine order */ + u16 res; /* all operands in native machine order */ - res = d & s; + res = d & s; - /* set the flags */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; + no_carry_word_side_eff(res); + return res; } /**************************************************************************** @@ -415,18 +420,11 @@ Implements the AND instruction and side effects. ****************************************************************************/ u32 and_long(u32 d, u32 s) { - register u32 res; /* all operands in native machine order */ - - res = d & s; + u32 res; /* all operands in native machine order */ - /* set the flags */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; + res = d & s; + no_carry_long_side_eff(res); + return res; } /**************************************************************************** @@ -435,21 +433,13 @@ Implements the CMP instruction and side effects. ****************************************************************************/ u8 cmp_byte(u8 d, u8 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ - res = d - s; - CLEAR_FLAG(F_CF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - s; + set_szp_flags_8((u8)res); + calc_borrow_chain(8, d, s, res, 1); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return d; + return d; } /**************************************************************************** @@ -458,20 +448,13 @@ Implements the CMP instruction and side effects. ****************************************************************************/ u16 cmp_word(u16 d, u16 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - s; + set_szp_flags_16((u16)res); + calc_borrow_chain(16, d, s, res, 1); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return d; + return d; } /**************************************************************************** @@ -480,20 +463,13 @@ Implements the CMP instruction and side effects. ****************************************************************************/ u32 cmp_long(u32 d, u32 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - s; + set_szp_flags_32(res); + calc_borrow_chain(32, d, s, res, 1); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return d; + return d; } /**************************************************************************** @@ -502,19 +478,17 @@ Implements the DAA instruction and side effects. ****************************************************************************/ u8 daa_byte(u8 d) { - u32 res = d; - if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) { - res += 6; - SET_FLAG(F_AF); - } - if (res > 0x9F || ACCESS_FLAG(F_CF)) { - res += 0x60; - SET_FLAG(F_CF); - } - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xFF) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return (u8) res; + u32 res = d; + if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) { + res += 6; + SET_FLAG(F_AF); + } + if (res > 0x9F || ACCESS_FLAG(F_CF)) { + res += 0x60; + SET_FLAG(F_CF); + } + set_szp_flags_8((u8)res); + return (u8)res; } /**************************************************************************** @@ -523,18 +497,16 @@ Implements the DAS instruction and side effects. ****************************************************************************/ u8 das_byte(u8 d) { - if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) { - d -= 6; - SET_FLAG(F_AF); - } - if (d > 0x9F || ACCESS_FLAG(F_CF)) { - d -= 0x60; - SET_FLAG(F_CF); - } - CONDITIONAL_SET_FLAG(d & 0x80, F_SF); - CONDITIONAL_SET_FLAG(d == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(d & 0xff), F_PF); - return d; + if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) { + d -= 6; + SET_FLAG(F_AF); + } + if (d > 0x9F || ACCESS_FLAG(F_CF)) { + d -= 0x60; + SET_FLAG(F_CF); + } + set_szp_flags_8(d); + return d; } /**************************************************************************** @@ -543,21 +515,13 @@ Implements the DEC instruction and side effects. ****************************************************************************/ u8 dec_byte(u8 d) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ - res = d - 1; - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - 1; + set_szp_flags_8((u8)res); + calc_borrow_chain(8, d, 1, res, 0); - /* calculate the borrow chain. See note at top */ - /* based on sub_byte, uses s==1. */ - bc = (res & (~d | 1)) | (~d & 1); - /* carry flag unchanged */ - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u8) res; + return (u8)res; } /**************************************************************************** @@ -566,21 +530,13 @@ Implements the DEC instruction and side effects. ****************************************************************************/ u16 dec_word(u16 d) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ - res = d - 1; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - 1; + set_szp_flags_16((u16)res); + calc_borrow_chain(16, d, 1, res, 0); - /* calculate the borrow chain. See note at top */ - /* based on the sub_byte routine, with s==1 */ - bc = (res & (~d | 1)) | (~d & 1); - /* carry flag unchanged */ - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u16) res; + return (u16)res; } /**************************************************************************** @@ -589,21 +545,14 @@ Implements the DEC instruction and side effects. ****************************************************************************/ u32 dec_long(u32 d) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ - res = d - 1; + res = d - 1; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + set_szp_flags_32(res); + calc_borrow_chain(32, d, 1, res, 0); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | 1)) | (~d & 1); - /* carry flag unchanged */ - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; + return res; } /**************************************************************************** @@ -612,19 +561,13 @@ Implements the INC instruction and side effects. ****************************************************************************/ u8 inc_byte(u8 d) { - register u32 res; /* all operands in native machine order */ - register u32 cc; + u32 res; /* all operands in native machine order */ - res = d + 1; - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d + 1; + set_szp_flags_8((u8)res); + calc_carry_chain(8, d, 1, res, 0); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = ((1 & d) | (~res)) & (1 | d); - CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u8) res; + return (u8)res; } /**************************************************************************** @@ -633,19 +576,13 @@ Implements the INC instruction and side effects. ****************************************************************************/ u16 inc_word(u16 d) { - register u32 res; /* all operands in native machine order */ - register u32 cc; + u32 res; /* all operands in native machine order */ - res = d + 1; - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d + 1; + set_szp_flags_16((u16)res); + calc_carry_chain(16, d, 1, res, 0); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (1 & d) | ((~res) & (1 | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u16) res; + return (u16)res; } /**************************************************************************** @@ -654,19 +591,13 @@ Implements the INC instruction and side effects. ****************************************************************************/ u32 inc_long(u32 d) { - register u32 res; /* all operands in native machine order */ - register u32 cc; + u32 res; /* all operands in native machine order */ - res = d + 1; - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d + 1; + set_szp_flags_32(res); + calc_carry_chain(32, d, 1, res, 0); - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (1 & d) | ((~res) & (1 | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return res; + return res; } /**************************************************************************** @@ -675,16 +606,12 @@ Implements the OR instruction and side effects. ****************************************************************************/ u8 or_byte(u8 d, u8 s) { - register u8 res; /* all operands in native machine order */ + u8 res; /* all operands in native machine order */ + + res = d | s; + no_carry_byte_side_eff(res); - res = d | s; - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - return res; + return res; } /**************************************************************************** @@ -693,17 +620,11 @@ Implements the OR instruction and side effects. ****************************************************************************/ u16 or_word(u16 d, u16 s) { - register u16 res; /* all operands in native machine order */ + u16 res; /* all operands in native machine order */ - res = d | s; - /* set the carry flag to be bit 8 */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; + res = d | s; + no_carry_word_side_eff(res); + return res; } /**************************************************************************** @@ -712,18 +633,11 @@ Implements the OR instruction and side effects. ****************************************************************************/ u32 or_long(u32 d, u32 s) { - register u32 res; /* all operands in native machine order */ + u32 res; /* all operands in native machine order */ - res = d | s; - - /* set the carry flag to be bit 8 */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; + res = d | s; + no_carry_long_side_eff(res); + return res; } /**************************************************************************** @@ -732,23 +646,14 @@ Implements the OR instruction and side effects. ****************************************************************************/ u8 neg_byte(u8 s) { - register u8 res; - register u8 bc; + u8 res; + + CONDITIONAL_SET_FLAG(s != 0, F_CF); + res = (u8)-s; + set_szp_flags_8(res); + calc_borrow_chain(8, 0, s, res, 0); - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u8) - s; - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - /* calculate the borrow chain --- modified such that d=0. - substitutiing d=0 into bc= res&(~d|s)|(~d&s); - (the one used for sub) and simplifying, since ~d=0xff..., - ~d|s == 0xffff..., and res&0xfff... == res. Similarly - ~d&s == s. So the simplified result is: */ - bc = res | s; - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; + return res; } /**************************************************************************** @@ -757,24 +662,14 @@ Implements the OR instruction and side effects. ****************************************************************************/ u16 neg_word(u16 s) { - register u16 res; - register u16 bc; + u16 res; - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u16) - s; - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + CONDITIONAL_SET_FLAG(s != 0, F_CF); + res = (u16)-s; + set_szp_flags_16((u16)res); + calc_borrow_chain(16, 0, s, res, 0); - /* calculate the borrow chain --- modified such that d=0. - substitutiing d=0 into bc= res&(~d|s)|(~d&s); - (the one used for sub) and simplifying, since ~d=0xff..., - ~d|s == 0xffff..., and res&0xfff... == res. Similarly - ~d&s == s. So the simplified result is: */ - bc = res | s; - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; + return res; } /**************************************************************************** @@ -783,24 +678,14 @@ Implements the OR instruction and side effects. ****************************************************************************/ u32 neg_long(u32 s) { - register u32 res; - register u32 bc; + u32 res; - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u32) - s; - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + CONDITIONAL_SET_FLAG(s != 0, F_CF); + res = (u32)-s; + set_szp_flags_32(res); + calc_borrow_chain(32, 0, s, res, 0); - /* calculate the borrow chain --- modified such that d=0. - substitutiing d=0 into bc= res&(~d|s)|(~d&s); - (the one used for sub) and simplifying, since ~d=0xff..., - ~d|s == 0xffff..., and res&0xfff... == res. Similarly - ~d&s == s. So the simplified result is: */ - bc = res | s; - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; + return res; } /**************************************************************************** @@ -809,7 +694,7 @@ Implements the NOT instruction and side effects. ****************************************************************************/ u8 not_byte(u8 s) { - return ~s; + return ~s; } /**************************************************************************** @@ -818,7 +703,7 @@ Implements the NOT instruction and side effects. ****************************************************************************/ u16 not_word(u16 s) { - return ~s; + return ~s; } /**************************************************************************** @@ -827,7 +712,7 @@ Implements the NOT instruction and side effects. ****************************************************************************/ u32 not_long(u32 s) { - return ~s; + return ~s; } /**************************************************************************** @@ -836,70 +721,71 @@ Implements the RCL instruction and side effects. ****************************************************************************/ u8 rcl_byte(u8 d, u8 s) { - register unsigned int res, cnt, mask, cf; - - /* s is the rotate distance. It varies from 0 - 8. */ - /* have - - CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 - - want to rotate through the carry by "s" bits. We could - loop, but that's inefficient. So the width is 9, - and we split into three parts: - - The new carry flag (was B_n) - the stuff in B_n-1 .. B_0 - the stuff in B_7 .. B_n+1 - - The new rotate is done mod 9, and given this, - for a rotation of n bits (mod 9) the new carry flag is - then located n bits from the MSB. The low part is - then shifted up cnt bits, and the high part is or'd - in. Using CAPS for new values, and lowercase for the - original values, this can be expressed as: - - IF n > 0 - 1) CF <- b_(8-n) - 2) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0 - 3) B_(n-1) <- cf - 4) B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1)) - */ - res = d; - if ((cnt = s % 9) != 0) { - /* extract the new CARRY FLAG. */ - /* CF <- b_(8-n) */ - cf = (d >> (8 - cnt)) & 0x1; - - /* get the low stuff which rotated - into the range B_7 .. B_cnt */ - /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0 */ - /* note that the right hand side done by the mask */ - res = (d << cnt) & 0xff; - - /* now the high stuff which rotated around - into the positions B_cnt-2 .. B_0 */ - /* B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1)) */ - /* shift it downward, 7-(n-2) = 9-n positions. - and mask off the result before or'ing in. - */ - mask = (1 << (cnt - 1)) - 1; - res |= (d >> (9 - cnt)) & mask; - - /* if the carry flag was set, or it in. */ - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - /* B_(n-1) <- cf */ - res |= 1 << (cnt - 1); - } - /* set the new carry flag, based on the variable "cf" */ - CONDITIONAL_SET_FLAG(cf, F_CF); - /* OVERFLOW is set *IFF* cnt==1, then it is the - xor of CF and the most significant bit. Blecck. */ - /* parenthesized this expression since it appears to - be causing OF to be misset */ - CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 6) & 0x2)), F_OF); - - } - return (u8) res; + unsigned int res, cnt, mask, cf; + + /* s is the rotate distance. It varies from 0 - 8. */ + /* have + + CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 + + want to rotate through the carry by "s" bits. We could + loop, but that's inefficient. So the width is 9, + and we split into three parts: + + The new carry flag (was B_n) + the stuff in B_n-1 .. B_0 + the stuff in B_7 .. B_n+1 + + The new rotate is done mod 9, and given this, + for a rotation of n bits (mod 9) the new carry flag is + then located n bits from the MSB. The low part is + then shifted up cnt bits, and the high part is or'd + in. Using CAPS for new values, and lowercase for the + original values, this can be expressed as: + + IF n > 0 + 1) CF <- b_(8-n) + 2) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0 + 3) B_(n-1) <- cf + 4) B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1)) + */ + res = d; + if ((cnt = s % 9) != 0) { + /* extract the new CARRY FLAG. */ + /* CF <- b_(8-n) */ + cf = (d >> (8 - cnt)) & 0x1; + + /* get the low stuff which rotated + into the range B_7 .. B_cnt */ + /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0 */ + /* note that the right hand side done by the mask */ + res = (d << cnt) & 0xff; + + /* now the high stuff which rotated around + into the positions B_cnt-2 .. B_0 */ + /* B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1)) */ + /* shift it downward, 7-(n-2) = 9-n positions. + and mask off the result before or'ing in. + */ + mask = (1 << (cnt - 1)) - 1; + res |= (d >> (9 - cnt)) & mask; + + /* if the carry flag was set, or it in. */ + if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ + /* B_(n-1) <- cf */ + res |= 1 << (cnt - 1); + } + /* set the new carry flag, based on the variable "cf" */ + CONDITIONAL_SET_FLAG(cf, F_CF); + /* OVERFLOW is set *IFF* cnt==1, then it is the + xor of CF and the most significant bit. Blecck. */ + /* parenthesized this expression since it appears to + be causing OF to be misset */ + CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 6) & 0x2)), + F_OF); + + } + return (u8)res; } /**************************************************************************** @@ -908,21 +794,22 @@ Implements the RCL instruction and side effects. ****************************************************************************/ u16 rcl_word(u16 d, u8 s) { - register unsigned int res, cnt, mask, cf; + unsigned int res, cnt, mask, cf; - res = d; - if ((cnt = s % 17) != 0) { - cf = (d >> (16 - cnt)) & 0x1; - res = (d << cnt) & 0xffff; - mask = (1 << (cnt - 1)) - 1; - res |= (d >> (17 - cnt)) & mask; - if (ACCESS_FLAG(F_CF)) { - res |= 1 << (cnt - 1); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 14) & 0x2)), F_OF); - } - return (u16) res; + res = d; + if ((cnt = s % 17) != 0) { + cf = (d >> (16 - cnt)) & 0x1; + res = (d << cnt) & 0xffff; + mask = (1 << (cnt - 1)) - 1; + res |= (d >> (17 - cnt)) & mask; + if (ACCESS_FLAG(F_CF)) { + res |= 1 << (cnt - 1); + } + CONDITIONAL_SET_FLAG(cf, F_CF); + CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 14) & 0x2)), + F_OF); + } + return (u16)res; } /**************************************************************************** @@ -931,21 +818,22 @@ Implements the RCL instruction and side effects. ****************************************************************************/ u32 rcl_long(u32 d, u8 s) { - register u32 res, cnt, mask, cf; + u32 res, cnt, mask, cf; - res = d; - if ((cnt = s % 33) != 0) { - cf = (d >> (32 - cnt)) & 0x1; - res = (d << cnt) & 0xffffffff; - mask = (1 << (cnt - 1)) - 1; - res |= (d >> (33 - cnt)) & mask; - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - res |= 1 << (cnt - 1); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 30) & 0x2)), F_OF); - } - return res; + res = d; + if ((cnt = s % 33) != 0) { + cf = (d >> (32 - cnt)) & 0x1; + res = (d << cnt) & 0xffffffff; + mask = (1 << (cnt - 1)) - 1; + res |= (d >> (33 - cnt)) & mask; + if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ + res |= 1 << (cnt - 1); + } + CONDITIONAL_SET_FLAG(cf, F_CF); + CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 30) & 0x2)), + F_OF); + } + return res; } /**************************************************************************** @@ -954,81 +842,82 @@ Implements the RCR instruction and side effects. ****************************************************************************/ u8 rcr_byte(u8 d, u8 s) { - u32 res, cnt; - u32 mask, cf, ocf = 0; - - /* rotate right through carry */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. - - have - - CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 - - The new rotate is done mod 9, and given this, - for a rotation of n bits (mod 9) the new carry flag is - then located n bits from the LSB. The low part is - then shifted up cnt bits, and the high part is or'd - in. Using CAPS for new values, and lowercase for the - original values, this can be expressed as: - - IF n > 0 - 1) CF <- b_(n-1) - 2) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) - 3) B_(8-n) <- cf - 4) B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0) - */ - res = d; - if ((cnt = s % 9) != 0) { - /* extract the new CARRY FLAG. */ - /* CF <- b_(n-1) */ - if (cnt == 1) { - cf = d & 0x1; - /* note hackery here. Access_flag(..) evaluates to either - 0 if flag not set - non-zero if flag is set. - doing access_flag(..) != 0 casts that into either - 0..1 in any representation of the flags register - (i.e. packed bit array or unpacked.) - */ - ocf = ACCESS_FLAG(F_CF) != 0; - } else - cf = (d >> (cnt - 1)) & 0x1; - - /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_n */ - /* note that the right hand side done by the mask - This is effectively done by shifting the - object to the right. The result must be masked, - in case the object came in and was treated - as a negative number. Needed??? */ - - mask = (1 << (8 - cnt)) - 1; - res = (d >> cnt) & mask; - - /* now the high stuff which rotated around - into the positions B_cnt-2 .. B_0 */ - /* B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0) */ - /* shift it downward, 7-(n-2) = 9-n positions. - and mask off the result before or'ing in. - */ - res |= (d << (9 - cnt)); - - /* if the carry flag was set, or it in. */ - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - /* B_(8-n) <- cf */ - res |= 1 << (8 - cnt); - } - /* set the new carry flag, based on the variable "cf" */ - CONDITIONAL_SET_FLAG(cf, F_CF); - /* OVERFLOW is set *IFF* cnt==1, then it is the - xor of CF and the most significant bit. Blecck. */ - /* parenthesized... */ - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 6) & 0x2)), F_OF); - } - } - return (u8) res; + u32 res, cnt; + u32 mask, cf, ocf = 0; + + /* rotate right through carry */ + /* + s is the rotate distance. It varies from 0 - 8. + d is the byte object rotated. + + have + + CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 + + The new rotate is done mod 9, and given this, + for a rotation of n bits (mod 9) the new carry flag is + then located n bits from the LSB. The low part is + then shifted up cnt bits, and the high part is or'd + in. Using CAPS for new values, and lowercase for the + original values, this can be expressed as: + + IF n > 0 + 1) CF <- b_(n-1) + 2) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) + 3) B_(8-n) <- cf + 4) B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0) + */ + res = d; + if ((cnt = s % 9) != 0) { + /* extract the new CARRY FLAG. */ + /* CF <- b_(n-1) */ + if (cnt == 1) { + cf = d & 0x1; + /* note hackery here. Access_flag(..) evaluates to either + 0 if flag not set + non-zero if flag is set. + doing access_flag(..) != 0 casts that into either + 0..1 in any representation of the flags register + (i.e. packed bit array or unpacked.) + */ + ocf = ACCESS_FLAG(F_CF) != 0; + } else + cf = (d >> (cnt - 1)) & 0x1; + + /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_n */ + /* note that the right hand side done by the mask + This is effectively done by shifting the + object to the right. The result must be masked, + in case the object came in and was treated + as a negative number. Needed??? */ + + mask = (1 << (8 - cnt)) - 1; + res = (d >> cnt) & mask; + + /* now the high stuff which rotated around + into the positions B_cnt-2 .. B_0 */ + /* B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0) */ + /* shift it downward, 7-(n-2) = 9-n positions. + and mask off the result before or'ing in. + */ + res |= (d << (9 - cnt)); + + /* if the carry flag was set, or it in. */ + if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ + /* B_(8-n) <- cf */ + res |= 1 << (8 - cnt); + } + /* set the new carry flag, based on the variable "cf" */ + CONDITIONAL_SET_FLAG(cf, F_CF); + /* OVERFLOW is set *IFF* cnt==1, then it is the + xor of CF and the most significant bit. Blecck. */ + /* parenthesized... */ + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 6) & 0x2)), + F_OF); + } + } + return (u8)res; } /**************************************************************************** @@ -1037,29 +926,30 @@ Implements the RCR instruction and side effects. ****************************************************************************/ u16 rcr_word(u16 d, u8 s) { - u32 res, cnt; - u32 mask, cf, ocf = 0; - - /* rotate right through carry */ - res = d; - if ((cnt = s % 17) != 0) { - if (cnt == 1) { - cf = d & 0x1; - ocf = ACCESS_FLAG(F_CF) != 0; - } else - cf = (d >> (cnt - 1)) & 0x1; - mask = (1 << (16 - cnt)) - 1; - res = (d >> cnt) & mask; - res |= (d << (17 - cnt)); - if (ACCESS_FLAG(F_CF)) { - res |= 1 << (16 - cnt); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 14) & 0x2)), F_OF); - } - } - return (u16) res; + u32 res, cnt; + u32 mask, cf, ocf = 0; + + /* rotate right through carry */ + res = d; + if ((cnt = s % 17) != 0) { + if (cnt == 1) { + cf = d & 0x1; + ocf = ACCESS_FLAG(F_CF) != 0; + } else + cf = (d >> (cnt - 1)) & 0x1; + mask = (1 << (16 - cnt)) - 1; + res = (d >> cnt) & mask; + res |= (d << (17 - cnt)); + if (ACCESS_FLAG(F_CF)) { + res |= 1 << (16 - cnt); + } + CONDITIONAL_SET_FLAG(cf, F_CF); + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 14) & 0x2)), + F_OF); + } + } + return (u16)res; } /**************************************************************************** @@ -1068,30 +958,31 @@ Implements the RCR instruction and side effects. ****************************************************************************/ u32 rcr_long(u32 d, u8 s) { - u32 res, cnt; - u32 mask, cf, ocf = 0; - - /* rotate right through carry */ - res = d; - if ((cnt = s % 33) != 0) { - if (cnt == 1) { - cf = d & 0x1; - ocf = ACCESS_FLAG(F_CF) != 0; - } else - cf = (d >> (cnt - 1)) & 0x1; - mask = (1 << (32 - cnt)) - 1; - res = (d >> cnt) & mask; - if (cnt != 1) - res |= (d << (33 - cnt)); - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - res |= 1 << (32 - cnt); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 30) & 0x2)), F_OF); - } - } - return res; + u32 res, cnt; + u32 mask, cf, ocf = 0; + + /* rotate right through carry */ + res = d; + if ((cnt = s % 33) != 0) { + if (cnt == 1) { + cf = d & 0x1; + ocf = ACCESS_FLAG(F_CF) != 0; + } else + cf = (d >> (cnt - 1)) & 0x1; + mask = (1 << (32 - cnt)) - 1; + res = (d >> cnt) & mask; + if (cnt != 1) + res |= (d << (33 - cnt)); + if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ + res |= 1 << (32 - cnt); + } + CONDITIONAL_SET_FLAG(cf, F_CF); + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 30) & 0x2)), + F_OF); + } + } + return res; } /**************************************************************************** @@ -1100,47 +991,47 @@ Implements the ROL instruction and side effects. ****************************************************************************/ u8 rol_byte(u8 d, u8 s) { - register unsigned int res, cnt, mask; + unsigned int res, cnt, mask; - /* rotate left */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. + /* rotate left */ + /* + s is the rotate distance. It varies from 0 - 8. + d is the byte object rotated. - have + have - CF B_7 ... B_0 + CF B_7 ... B_0 - The new rotate is done mod 8. - Much simpler than the "rcl" or "rcr" operations. + The new rotate is done mod 8. + Much simpler than the "rcl" or "rcr" operations. - IF n > 0 - 1) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0) - 2) B_(n-1) .. B_(0) <- b_(7) .. b_(8-n) - */ - res = d; - if ((cnt = s % 8) != 0) { - /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0) */ - res = (d << cnt); + IF n > 0 + 1) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0) + 2) B_(n-1) .. B_(0) <- b_(7) .. b_(8-n) + */ + res = d; + if ((cnt = s % 8) != 0) { + /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0) */ + res = (d << cnt); - /* B_(n-1) .. B_(0) <- b_(7) .. b_(8-n) */ - mask = (1 << cnt) - 1; - res |= (d >> (8 - cnt)) & mask; + /* B_(n-1) .. B_(0) <- b_(7) .. b_(8-n) */ + mask = (1 << cnt) - 1; + res |= (d >> (8 - cnt)) & mask; - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - /* OVERFLOW is set *IFF* s==1, then it is the - xor of CF and the most significant bit. Blecck. */ - CONDITIONAL_SET_FLAG(s == 1 && - XOR2((res & 0x1) + ((res >> 6) & 0x2)), F_OF); - } - if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - } - return (u8) res; + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x1, F_CF); + /* OVERFLOW is set *IFF* s==1, then it is the + xor of CF and the most significant bit. Blecck. */ + CONDITIONAL_SET_FLAG(s == 1 && + XOR2((res & 0x1) + ((res >> 6) & 0x2)), + F_OF); + } if (s != 0) { + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x1, F_CF); + } + return (u8)res; } /**************************************************************************** @@ -1149,23 +1040,23 @@ Implements the ROL instruction and side effects. ****************************************************************************/ u16 rol_word(u16 d, u8 s) { - register unsigned int res, cnt, mask; + unsigned int res, cnt, mask; - res = d; - if ((cnt = s % 16) != 0) { - res = (d << cnt); - mask = (1 << cnt) - 1; - res |= (d >> (16 - cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && - XOR2((res & 0x1) + ((res >> 14) & 0x2)), F_OF); - } - if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - } - return (u16) res; + res = d; + if ((cnt = s % 16) != 0) { + res = (d << cnt); + mask = (1 << cnt) - 1; + res |= (d >> (16 - cnt)) & mask; + CONDITIONAL_SET_FLAG(res & 0x1, F_CF); + CONDITIONAL_SET_FLAG(s == 1 && + XOR2((res & 0x1) + ((res >> 14) & 0x2)), + F_OF); + } if (s != 0) { + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x1, F_CF); + } + return (u16)res; } /**************************************************************************** @@ -1174,23 +1065,23 @@ Implements the ROL instruction and side effects. ****************************************************************************/ u32 rol_long(u32 d, u8 s) { - register u32 res, cnt, mask; + u32 res, cnt, mask; - res = d; - if ((cnt = s % 32) != 0) { - res = (d << cnt); - mask = (1 << cnt) - 1; - res |= (d >> (32 - cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && - XOR2((res & 0x1) + ((res >> 30) & 0x2)), F_OF); - } - if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - } - return res; + res = d; + if ((cnt = s % 32) != 0) { + res = (d << cnt); + mask = (1 << cnt) - 1; + res |= (d >> (32 - cnt)) & mask; + CONDITIONAL_SET_FLAG(res & 0x1, F_CF); + CONDITIONAL_SET_FLAG(s == 1 && + XOR2((res & 0x1) + ((res >> 30) & 0x2)), + F_OF); + } if (s != 0) { + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x1, F_CF); + } + return res; } /**************************************************************************** @@ -1199,44 +1090,44 @@ Implements the ROR instruction and side effects. ****************************************************************************/ u8 ror_byte(u8 d, u8 s) { - register unsigned int res, cnt, mask; + unsigned int res, cnt, mask; - /* rotate right */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. + /* rotate right */ + /* + s is the rotate distance. It varies from 0 - 8. + d is the byte object rotated. - have + have - B_7 ... B_0 + B_7 ... B_0 - The rotate is done mod 8. + The rotate is done mod 8. - IF n > 0 - 1) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) - 2) B_(7) .. B_(8-n) <- b_(n-1) .. b_(0) - */ - res = d; - if ((cnt = s % 8) != 0) { /* not a typo, do nada if cnt==0 */ - /* B_(7) .. B_(8-n) <- b_(n-1) .. b_(0) */ - res = (d << (8 - cnt)); + IF n > 0 + 1) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) + 2) B_(7) .. B_(8-n) <- b_(n-1) .. b_(0) + */ + res = d; + if ((cnt = s % 8) != 0) { /* not a typo, do nada if cnt==0 */ + /* B_(7) .. B_(8-n) <- b_(n-1) .. b_(0) */ + res = (d << (8 - cnt)); - /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) */ - mask = (1 << (8 - cnt)) - 1; - res |= (d >> (cnt)) & mask; + /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) */ + mask = (1 << (8 - cnt)) - 1; + res |= (d >> (cnt)) & mask; - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x80, F_CF); - /* OVERFLOW is set *IFF* s==1, then it is the - xor of the two most significant bits. Blecck. */ - CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 6), F_OF); - } else if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x80, F_CF); - } - return (u8) res; + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x80, F_CF); + /* OVERFLOW is set *IFF* s==1, then it is the + xor of the two most significant bits. Blecck. */ + CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 6), F_OF); + } else if (s != 0) { + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x80, F_CF); + } + return (u8)res; } /**************************************************************************** @@ -1245,21 +1136,21 @@ Implements the ROR instruction and side effects. ****************************************************************************/ u16 ror_word(u16 d, u8 s) { - register unsigned int res, cnt, mask; + unsigned int res, cnt, mask; - res = d; - if ((cnt = s % 16) != 0) { - res = (d << (16 - cnt)); - mask = (1 << (16 - cnt)) - 1; - res |= (d >> (cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 14), F_OF); - } else if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x8000, F_CF); - } - return (u16) res; + res = d; + if ((cnt = s % 16) != 0) { + res = (d << (16 - cnt)); + mask = (1 << (16 - cnt)) - 1; + res |= (d >> (cnt)) & mask; + CONDITIONAL_SET_FLAG(res & 0x8000, F_CF); + CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 14), F_OF); + } else if (s != 0) { + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x8000, F_CF); + } + return (u16)res; } /**************************************************************************** @@ -1268,21 +1159,21 @@ Implements the ROR instruction and side effects. ****************************************************************************/ u32 ror_long(u32 d, u8 s) { - register u32 res, cnt, mask; + u32 res, cnt, mask; - res = d; - if ((cnt = s % 32) != 0) { - res = (d << (32 - cnt)); - mask = (1 << (32 - cnt)) - 1; - res |= (d >> (cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 30), F_OF); - } else if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF); - } - return res; + res = d; + if ((cnt = s % 32) != 0) { + res = (d << (32 - cnt)); + mask = (1 << (32 - cnt)) - 1; + res |= (d >> (cnt)) & mask; + CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF); + CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 30), F_OF); + } else if (s != 0) { + /* set the new carry flag, Note that it is the low order + bit of the result!!! */ + CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF); + } + return res; } /**************************************************************************** @@ -1291,41 +1182,40 @@ Implements the SHL instruction and side effects. ****************************************************************************/ u8 shl_byte(u8 d, u8 s) { - unsigned int cnt, res, cf; - - if (s < 8) { - cnt = s % 8; - - /* last bit shifted out goes into carry flag */ - if (cnt > 0) { - res = d << cnt; - cf = d & (1 << (8 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = (u8) d; - } - - if (cnt == 1) { - /* Needs simplification. */ - CONDITIONAL_SET_FLAG((((res & 0x80) == 0x80) ^ - (ACCESS_FLAG(F_CF) != 0)), - /* was (M.x86.R_FLG&F_CF)==F_CF)), */ - F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u8) res; + unsigned int cnt, res, cf; + + if (s < 8) { + cnt = s % 8; + + /* last bit shifted out goes into carry flag */ + if (cnt > 0) { + res = d << cnt; + cf = d & (1 << (8 - cnt)); + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_8((u8)res); + } else { + res = (u8) d; + } + + if (cnt == 1) { + /* Needs simplification. */ + CONDITIONAL_SET_FLAG( + (((res & 0x80) == 0x80) ^ + (ACCESS_FLAG(F_CF) != 0)), + /* was (M.x86.R_FLG&F_CF)==F_CF)), */ + F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CONDITIONAL_SET_FLAG((d << (s-1)) & 0x80, F_CF); + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_PF); + SET_FLAG(F_ZF); + } + return (u8)res; } /**************************************************************************** @@ -1334,36 +1224,36 @@ Implements the SHL instruction and side effects. ****************************************************************************/ u16 shl_word(u16 d, u8 s) { - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - res = d << cnt; - cf = d & (1 << (16 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = (u16) d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^ - (ACCESS_FLAG(F_CF) != 0)), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x8000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u16) res; + unsigned int cnt, res, cf; + + if (s < 16) { + cnt = s % 16; + if (cnt > 0) { + res = d << cnt; + cf = d & (1 << (16 - cnt)); + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_16((u16)res); + } else { + res = (u16) d; + } + + if (cnt == 1) { + CONDITIONAL_SET_FLAG( + (((res & 0x8000) == 0x8000) ^ + (ACCESS_FLAG(F_CF) != 0)), + F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CONDITIONAL_SET_FLAG((d << (s-1)) & 0x8000, F_CF); + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_PF); + SET_FLAG(F_ZF); + } + return (u16)res; } /**************************************************************************** @@ -1372,35 +1262,33 @@ Implements the SHL instruction and side effects. ****************************************************************************/ u32 shl_long(u32 d, u8 s) { - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - res = d << cnt; - cf = d & (1 << (32 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^ - (ACCESS_FLAG(F_CF) != 0)), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80000000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return res; + unsigned int cnt, res, cf; + + if (s < 32) { + cnt = s % 32; + if (cnt > 0) { + res = d << cnt; + cf = d & (1 << (32 - cnt)); + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_32((u32)res); + } else { + res = d; + } + if (cnt == 1) { + CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^ + (ACCESS_FLAG(F_CF) != 0)), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CONDITIONAL_SET_FLAG((d << (s-1)) & 0x80000000, F_CF); + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_PF); + SET_FLAG(F_ZF); + } + return res; } /**************************************************************************** @@ -1409,35 +1297,33 @@ Implements the SHR instruction and side effects. ****************************************************************************/ u8 shr_byte(u8 d, u8 s) { - unsigned int cnt, res, cf; - - if (s < 8) { - cnt = s % 8; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = d >> cnt; - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = (u8) d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 6), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d >> (s - 1)) & 0x1, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u8) res; + unsigned int cnt, res, cf; + + if (s < 8) { + cnt = s % 8; + if (cnt > 0) { + cf = d & (1 << (cnt - 1)); + res = d >> cnt; + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_8((u8)res); + } else { + res = (u8) d; + } + + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(res >> 6), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CONDITIONAL_SET_FLAG((d >> (s-1)) & 0x1, F_CF); + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_PF); + SET_FLAG(F_ZF); + } + return (u8)res; } /**************************************************************************** @@ -1446,35 +1332,33 @@ Implements the SHR instruction and side effects. ****************************************************************************/ u16 shr_word(u16 d, u8 s) { - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = d >> cnt; - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return (u16) res; + unsigned int cnt, res, cf; + + if (s < 16) { + cnt = s % 16; + if (cnt > 0) { + cf = d & (1 << (cnt - 1)); + res = d >> cnt; + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_16((u16)res); + } else { + res = d; + } + + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + SET_FLAG(F_ZF); + CLEAR_FLAG(F_SF); + CLEAR_FLAG(F_PF); + } + return (u16)res; } /**************************************************************************** @@ -1483,34 +1367,32 @@ Implements the SHR instruction and side effects. ****************************************************************************/ u32 shr_long(u32 d, u8 s) { - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = d >> cnt; - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return res; + unsigned int cnt, res, cf; + + if (s < 32) { + cnt = s % 32; + if (cnt > 0) { + cf = d & (1 << (cnt - 1)); + res = d >> cnt; + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_32((u32)res); + } else { + res = d; + } + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + SET_FLAG(F_ZF); + CLEAR_FLAG(F_SF); + CLEAR_FLAG(F_PF); + } + return res; } /**************************************************************************** @@ -1519,38 +1401,36 @@ Implements the SAR instruction and side effects. ****************************************************************************/ u8 sar_byte(u8 d, u8 s) { - unsigned int cnt, res, cf, mask, sf; - - res = d; - sf = d & 0x80; - cnt = s % 8; - if (cnt > 0 && cnt < 8) { - mask = (1 << (8 - cnt)) - 1; - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) & mask; - CONDITIONAL_SET_FLAG(cf, F_CF); - if (sf) { - res |= ~mask; - } - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - } else if (cnt >= 8) { - if (sf) { - res = 0xff; - SET_FLAG(F_CF); - CLEAR_FLAG(F_ZF); - SET_FLAG(F_SF); - SET_FLAG(F_PF); - } else { - res = 0; - CLEAR_FLAG(F_CF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - } - return (u8) res; + unsigned int cnt, res, cf, mask, sf; + + res = d; + sf = d & 0x80; + cnt = s % 8; + if (cnt > 0 && cnt < 8) { + mask = (1 << (8 - cnt)) - 1; + cf = d & (1 << (cnt - 1)); + res = (d >> cnt) & mask; + CONDITIONAL_SET_FLAG(cf, F_CF); + if (sf) { + res |= ~mask; + } + set_szp_flags_8((u8)res); + } else if (cnt >= 8) { + if (sf) { + res = 0xff; + SET_FLAG(F_CF); + CLEAR_FLAG(F_ZF); + SET_FLAG(F_SF); + SET_FLAG(F_PF); + } else { + res = 0; + CLEAR_FLAG(F_CF); + SET_FLAG(F_ZF); + CLEAR_FLAG(F_SF); + CLEAR_FLAG(F_PF); + } + } + return (u8)res; } /**************************************************************************** @@ -1559,38 +1439,36 @@ Implements the SAR instruction and side effects. ****************************************************************************/ u16 sar_word(u16 d, u8 s) { - unsigned int cnt, res, cf, mask, sf; - - sf = d & 0x8000; - cnt = s % 16; - res = d; - if (cnt > 0 && cnt < 16) { - mask = (1 << (16 - cnt)) - 1; - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) & mask; - CONDITIONAL_SET_FLAG(cf, F_CF); - if (sf) { - res |= ~mask; - } - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else if (cnt >= 16) { - if (sf) { - res = 0xffff; - SET_FLAG(F_CF); - CLEAR_FLAG(F_ZF); - SET_FLAG(F_SF); - SET_FLAG(F_PF); - } else { - res = 0; - CLEAR_FLAG(F_CF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - } - return (u16) res; + unsigned int cnt, res, cf, mask, sf; + + sf = d & 0x8000; + cnt = s % 16; + res = d; + if (cnt > 0 && cnt < 16) { + mask = (1 << (16 - cnt)) - 1; + cf = d & (1 << (cnt - 1)); + res = (d >> cnt) & mask; + CONDITIONAL_SET_FLAG(cf, F_CF); + if (sf) { + res |= ~mask; + } + set_szp_flags_16((u16)res); + } else if (cnt >= 16) { + if (sf) { + res = 0xffff; + SET_FLAG(F_CF); + CLEAR_FLAG(F_ZF); + SET_FLAG(F_SF); + SET_FLAG(F_PF); + } else { + res = 0; + CLEAR_FLAG(F_CF); + SET_FLAG(F_ZF); + CLEAR_FLAG(F_SF); + CLEAR_FLAG(F_PF); + } + } + return (u16)res; } /**************************************************************************** @@ -1599,185 +1477,175 @@ Implements the SAR instruction and side effects. ****************************************************************************/ u32 sar_long(u32 d, u8 s) { - u32 cnt, res, cf, mask, sf; - - sf = d & 0x80000000; - cnt = s % 32; - res = d; - if (cnt > 0 && cnt < 32) { - mask = (1 << (32 - cnt)) - 1; - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) & mask; - CONDITIONAL_SET_FLAG(cf, F_CF); - if (sf) { - res |= ~mask; - } - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else if (cnt >= 32) { - if (sf) { - res = 0xffffffff; - SET_FLAG(F_CF); - CLEAR_FLAG(F_ZF); - SET_FLAG(F_SF); - SET_FLAG(F_PF); - } else { - res = 0; - CLEAR_FLAG(F_CF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - } - return res; + u32 cnt, res, cf, mask, sf; + + sf = d & 0x80000000; + cnt = s % 32; + res = d; + if (cnt > 0 && cnt < 32) { + mask = (1 << (32 - cnt)) - 1; + cf = d & (1 << (cnt - 1)); + res = (d >> cnt) & mask; + CONDITIONAL_SET_FLAG(cf, F_CF); + if (sf) { + res |= ~mask; + } + set_szp_flags_32(res); + } else if (cnt >= 32) { + if (sf) { + res = 0xffffffff; + SET_FLAG(F_CF); + CLEAR_FLAG(F_ZF); + SET_FLAG(F_SF); + SET_FLAG(F_PF); + } else { + res = 0; + CLEAR_FLAG(F_CF); + SET_FLAG(F_ZF); + CLEAR_FLAG(F_SF); + CLEAR_FLAG(F_PF); + } + } + return res; } /**************************************************************************** REMARKS: Implements the SHLD instruction and side effects. ****************************************************************************/ -u16 shld_word(u16 d, u16 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - res = (d << cnt) | (fill >> (16 - cnt)); - cf = d & (1 << (16 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^ - (ACCESS_FLAG(F_CF) != 0)), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x8000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u16) res; +u16 shld_word (u16 d, u16 fill, u8 s) +{ + unsigned int cnt, res, cf; + + if (s < 16) { + cnt = s % 16; + if (cnt > 0) { + res = (d << cnt) | (fill >> (16-cnt)); + cf = d & (1 << (16 - cnt)); + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_16((u16)res); + } else { + res = d; + } + if (cnt == 1) { + CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^ + (ACCESS_FLAG(F_CF) != 0)), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CONDITIONAL_SET_FLAG((d << (s-1)) & 0x8000, F_CF); + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_PF); + SET_FLAG(F_ZF); + } + return (u16)res; } /**************************************************************************** REMARKS: Implements the SHLD instruction and side effects. ****************************************************************************/ -u32 shld_long(u32 d, u32 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - res = (d << cnt) | (fill >> (32 - cnt)); - cf = d & (1 << (32 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^ - (ACCESS_FLAG(F_CF) != 0)), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80000000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return res; +u32 shld_long (u32 d, u32 fill, u8 s) +{ + unsigned int cnt, res, cf; + + if (s < 32) { + cnt = s % 32; + if (cnt > 0) { + res = (d << cnt) | (fill >> (32-cnt)); + cf = d & (1 << (32 - cnt)); + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_32((u32)res); + } else { + res = d; + } + if (cnt == 1) { + CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^ + (ACCESS_FLAG(F_CF) != 0)), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CONDITIONAL_SET_FLAG((d << (s-1)) & 0x80000000, F_CF); + CLEAR_FLAG(F_OF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_PF); + SET_FLAG(F_ZF); + } + return res; } /**************************************************************************** REMARKS: Implements the SHRD instruction and side effects. ****************************************************************************/ -u16 shrd_word(u16 d, u16 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) | (fill << (16 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return (u16) res; +u16 shrd_word (u16 d, u16 fill, u8 s) +{ + unsigned int cnt, res, cf; + + if (s < 16) { + cnt = s % 16; + if (cnt > 0) { + cf = d & (1 << (cnt - 1)); + res = (d >> cnt) | (fill << (16 - cnt)); + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_16((u16)res); + } else { + res = d; + } + + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + SET_FLAG(F_ZF); + CLEAR_FLAG(F_SF); + CLEAR_FLAG(F_PF); + } + return (u16)res; } /**************************************************************************** REMARKS: Implements the SHRD instruction and side effects. ****************************************************************************/ -u32 shrd_long(u32 d, u32 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) | (fill << (32 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return res; +u32 shrd_long (u32 d, u32 fill, u8 s) +{ + unsigned int cnt, res, cf; + + if (s < 32) { + cnt = s % 32; + if (cnt > 0) { + cf = d & (1 << (cnt - 1)); + res = (d >> cnt) | (fill << (32 - cnt)); + CONDITIONAL_SET_FLAG(cf, F_CF); + set_szp_flags_32((u32)res); + } else { + res = d; + } + if (cnt == 1) { + CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF); + } else { + CLEAR_FLAG(F_OF); + } + } else { + res = 0; + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + SET_FLAG(F_ZF); + CLEAR_FLAG(F_SF); + CLEAR_FLAG(F_PF); + } + return res; } /**************************************************************************** @@ -1786,23 +1654,21 @@ Implements the SBB instruction and side effects. ****************************************************************************/ u8 sbb_byte(u8 d, u8 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ + u32 bc; - if (ACCESS_FLAG(F_CF)) - res = d - s - 1; - else - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + if (ACCESS_FLAG(F_CF)) + res = d - s - 1; + else + res = d - s; + set_szp_flags_8((u8)res); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u8) res; + /* calculate the borrow chain. See note at top */ + bc = (res & (~d | s)) | (~d & s); + CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); + CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); + CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); + return (u8)res; } /**************************************************************************** @@ -1811,23 +1677,21 @@ Implements the SBB instruction and side effects. ****************************************************************************/ u16 sbb_word(u16 d, u16 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ + u32 bc; - if (ACCESS_FLAG(F_CF)) - res = d - s - 1; - else - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + if (ACCESS_FLAG(F_CF)) + res = d - s - 1; + else + res = d - s; + set_szp_flags_16((u16)res); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u16) res; + /* calculate the borrow chain. See note at top */ + bc = (res & (~d | s)) | (~d & s); + CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); + CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); + CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); + return (u16)res; } /**************************************************************************** @@ -1836,23 +1700,22 @@ Implements the SBB instruction and side effects. ****************************************************************************/ u32 sbb_long(u32 d, u32 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ + u32 bc; + + if (ACCESS_FLAG(F_CF)) + res = d - s - 1; + else + res = d - s; - if (ACCESS_FLAG(F_CF)) - res = d - s - 1; - else - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + set_szp_flags_32(res); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; + /* calculate the borrow chain. See note at top */ + bc = (res & (~d | s)) | (~d & s); + CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); + CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); + CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); + return res; } /**************************************************************************** @@ -1861,20 +1724,18 @@ Implements the SUB instruction and side effects. ****************************************************************************/ u8 sub_byte(u8 d, u8 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ + u32 bc; - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - s; + set_szp_flags_8((u8)res); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u8) res; + /* calculate the borrow chain. See note at top */ + bc = (res & (~d | s)) | (~d & s); + CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); + CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); + CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); + return (u8)res; } /**************************************************************************** @@ -1883,20 +1744,18 @@ Implements the SUB instruction and side effects. ****************************************************************************/ u16 sub_word(u16 d, u16 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ + u32 bc; - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - s; + set_szp_flags_16((u16)res); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u16) res; + /* calculate the borrow chain. See note at top */ + bc = (res & (~d | s)) | (~d & s); + CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); + CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); + CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); + return (u16)res; } /**************************************************************************** @@ -1905,20 +1764,18 @@ Implements the SUB instruction and side effects. ****************************************************************************/ u32 sub_long(u32 d, u32 s) { - register u32 res; /* all operands in native machine order */ - register u32 bc; + u32 res; /* all operands in native machine order */ + u32 bc; - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); + res = d - s; + set_szp_flags_32(res); - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; + /* calculate the borrow chain. See note at top */ + bc = (res & (~d | s)) | (~d & s); + CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); + CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); + CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); + return res; } /**************************************************************************** @@ -1927,16 +1784,14 @@ Implements the TEST instruction and side effects. ****************************************************************************/ void test_byte(u8 d, u8 s) { - register u32 res; /* all operands in native machine order */ + u32 res; /* all operands in native machine order */ - res = d & s; + res = d & s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - /* AF == dont care */ - CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + set_szp_flags_8((u8)res); + /* AF == dont care */ + CLEAR_FLAG(F_CF); } /**************************************************************************** @@ -1945,16 +1800,14 @@ Implements the TEST instruction and side effects. ****************************************************************************/ void test_word(u16 d, u16 s) { - register u32 res; /* all operands in native machine order */ + u32 res; /* all operands in native machine order */ - res = d & s; + res = d & s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - /* AF == dont care */ - CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + set_szp_flags_16((u16)res); + /* AF == dont care */ + CLEAR_FLAG(F_CF); } /**************************************************************************** @@ -1963,16 +1816,14 @@ Implements the TEST instruction and side effects. ****************************************************************************/ void test_long(u32 d, u32 s) { - register u32 res; /* all operands in native machine order */ + u32 res; /* all operands in native machine order */ - res = d & s; + res = d & s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - /* AF == dont care */ - CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + set_szp_flags_32(res); + /* AF == dont care */ + CLEAR_FLAG(F_CF); } /**************************************************************************** @@ -1981,16 +1832,11 @@ Implements the XOR instruction and side effects. ****************************************************************************/ u8 xor_byte(u8 d, u8 s) { - register u8 res; /* all operands in native machine order */ + u8 res; /* all operands in native machine order */ - res = d ^ s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - return res; + res = d ^ s; + no_carry_byte_side_eff(res); + return res; } /**************************************************************************** @@ -1999,16 +1845,11 @@ Implements the XOR instruction and side effects. ****************************************************************************/ u16 xor_word(u16 d, u16 s) { - register u16 res; /* all operands in native machine order */ + u16 res; /* all operands in native machine order */ - res = d ^ s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - return res; + res = d ^ s; + no_carry_word_side_eff(res); + return res; } /**************************************************************************** @@ -2017,16 +1858,11 @@ Implements the XOR instruction and side effects. ****************************************************************************/ u32 xor_long(u32 d, u32 s) { - register u32 res; /* all operands in native machine order */ + u32 res; /* all operands in native machine order */ - res = d ^ s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - return res; + res = d ^ s; + no_carry_long_side_eff(res); + return res; } /**************************************************************************** @@ -2035,17 +1871,17 @@ Implements the IMUL instruction and side effects. ****************************************************************************/ void imul_byte(u8 s) { - s16 res = (s16) ((s8) M.x86.R_AL * (s8) s); + s16 res = (s16)((s8)M.x86.R_AL * (s8)s); - M.x86.R_AX = res; - if (((M.x86.R_AL & 0x80) == 0 && M.x86.R_AH == 0x00) || - ((M.x86.R_AL & 0x80) != 0 && M.x86.R_AH == 0xFF)) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } + M.x86.R_AX = res; + if (((M.x86.R_AL & 0x80) == 0 && M.x86.R_AH == 0x00) || + ((M.x86.R_AL & 0x80) != 0 && M.x86.R_AH == 0xFF)) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } } /**************************************************************************** @@ -2054,55 +1890,55 @@ Implements the IMUL instruction and side effects. ****************************************************************************/ void imul_word(u16 s) { - s32 res = (s16) M.x86.R_AX * (s16) s; + s32 res = (s16)M.x86.R_AX * (s16)s; - M.x86.R_AX = (u16) res; - M.x86.R_DX = (u16) (res >> 16); - if (((M.x86.R_AX & 0x8000) == 0 && M.x86.R_DX == 0x00) || - ((M.x86.R_AX & 0x8000) != 0 && M.x86.R_DX == 0xFF)) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } + M.x86.R_AX = (u16)res; + M.x86.R_DX = (u16)(res >> 16); + if (((M.x86.R_AX & 0x8000) == 0 && M.x86.R_DX == 0x0000) || + ((M.x86.R_AX & 0x8000) != 0 && M.x86.R_DX == 0xFFFF)) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } } /**************************************************************************** REMARKS: Implements the IMUL instruction and side effects. ****************************************************************************/ -void imul_long_direct(u32 * res_lo, u32 * res_hi, u32 d, u32 s) +void imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s) { -#ifdef __HAS_LONG_LONG__ - s64 res = (s32) d * (s32) s; +#ifdef __HAS_LONG_LONG__ + s64 res = (s32)d * (s32)s; - *res_lo = (u32) res; - *res_hi = (u32) (res >> 32); + *res_lo = (u32)res; + *res_hi = (u32)(res >> 32); #else - u32 d_lo, d_hi, d_sign; - u32 s_lo, s_hi, s_sign; - u32 rlo_lo, rlo_hi, rhi_lo; - - if ((d_sign = d & 0x80000000) != 0) - d = -d; - d_lo = d & 0xFFFF; - d_hi = d >> 16; - if ((s_sign = s & 0x80000000) != 0) - s = -s; - s_lo = s & 0xFFFF; - s_hi = s >> 16; - rlo_lo = d_lo * s_lo; - rlo_hi = (d_hi * s_lo + d_lo * s_hi) + (rlo_lo >> 16); - rhi_lo = d_hi * s_hi + (rlo_hi >> 16); - *res_lo = (rlo_hi << 16) | (rlo_lo & 0xFFFF); - *res_hi = rhi_lo; - if (d_sign != s_sign) { - d = ~*res_lo; - s = (((d & 0xFFFF) + 1) >> 16) + (d >> 16); - *res_lo = ~*res_lo + 1; - *res_hi = ~*res_hi + (s >> 16); - } + u32 d_lo,d_hi,d_sign; + u32 s_lo,s_hi,s_sign; + u32 rlo_lo,rlo_hi,rhi_lo; + + if ((d_sign = d & 0x80000000) != 0) + d = -d; + d_lo = d & 0xFFFF; + d_hi = d >> 16; + if ((s_sign = s & 0x80000000) != 0) + s = -s; + s_lo = s & 0xFFFF; + s_hi = s >> 16; + rlo_lo = d_lo * s_lo; + rlo_hi = (d_hi * s_lo + d_lo * s_hi) + (rlo_lo >> 16); + rhi_lo = d_hi * s_hi + (rlo_hi >> 16); + *res_lo = (rlo_hi << 16) | (rlo_lo & 0xFFFF); + *res_hi = rhi_lo; + if (d_sign != s_sign) { + d = ~*res_lo; + s = (((d & 0xFFFF) + 1) >> 16) + (d >> 16); + *res_lo = ~*res_lo+1; + *res_hi = ~*res_hi+(s >> 16); + } #endif } @@ -2112,15 +1948,15 @@ Implements the IMUL instruction and side effects. ****************************************************************************/ void imul_long(u32 s) { - imul_long_direct(&M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, s); - if (((M.x86.R_EAX & 0x80000000) == 0 && M.x86.R_EDX == 0x00) || - ((M.x86.R_EAX & 0x80000000) != 0 && M.x86.R_EDX == 0xFF)) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } + imul_long_direct(&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,s); + if (((M.x86.R_EAX & 0x80000000) == 0 && M.x86.R_EDX == 0x00000000) || + ((M.x86.R_EAX & 0x80000000) != 0 && M.x86.R_EDX == 0xFFFFFFFF)) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } } /**************************************************************************** @@ -2129,16 +1965,16 @@ Implements the MUL instruction and side effects. ****************************************************************************/ void mul_byte(u8 s) { - u16 res = (u16) (M.x86.R_AL * s); + u16 res = (u16)(M.x86.R_AL * s); - M.x86.R_AX = res; - if (M.x86.R_AH == 0) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } + M.x86.R_AX = res; + if (M.x86.R_AH == 0) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } } /**************************************************************************** @@ -2147,17 +1983,17 @@ Implements the MUL instruction and side effects. ****************************************************************************/ void mul_word(u16 s) { - u32 res = M.x86.R_AX * s; + u32 res = M.x86.R_AX * s; - M.x86.R_AX = (u16) res; - M.x86.R_DX = (u16) (res >> 16); - if (M.x86.R_DX == 0) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } + M.x86.R_AX = (u16)res; + M.x86.R_DX = (u16)(res >> 16); + if (M.x86.R_DX == 0) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } } /**************************************************************************** @@ -2166,35 +2002,34 @@ Implements the MUL instruction and side effects. ****************************************************************************/ void mul_long(u32 s) { -#ifdef __HAS_LONG_LONG__ - u64 res = (u32) M.x86.R_EAX * (u32) s; +#ifdef __HAS_LONG_LONG__ + u64 res = (u32)M.x86.R_EAX * (u32)s; - M.x86.R_EAX = (u32) res; - M.x86.R_EDX = (u32) (res >> 32); + M.x86.R_EAX = (u32)res; + M.x86.R_EDX = (u32)(res >> 32); #else - u32 a, a_lo, a_hi; - u32 s_lo, s_hi; - u32 rlo_lo, rlo_hi, rhi_lo; - - a = M.x86.R_EAX; - a_lo = a & 0xFFFF; - a_hi = a >> 16; - s_lo = s & 0xFFFF; - s_hi = s >> 16; - rlo_lo = a_lo * s_lo; - rlo_hi = (a_hi * s_lo + a_lo * s_hi) + (rlo_lo >> 16); - rhi_lo = a_hi * s_hi + (rlo_hi >> 16); - M.x86.R_EAX = (rlo_hi << 16) | (rlo_lo & 0xFFFF); - M.x86.R_EDX = rhi_lo; + u32 a,a_lo,a_hi; + u32 s_lo,s_hi; + u32 rlo_lo,rlo_hi,rhi_lo; + + a = M.x86.R_EAX; + a_lo = a & 0xFFFF; + a_hi = a >> 16; + s_lo = s & 0xFFFF; + s_hi = s >> 16; + rlo_lo = a_lo * s_lo; + rlo_hi = (a_hi * s_lo + a_lo * s_hi) + (rlo_lo >> 16); + rhi_lo = a_hi * s_hi + (rlo_hi >> 16); + M.x86.R_EAX = (rlo_hi << 16) | (rlo_lo & 0xFFFF); + M.x86.R_EDX = rhi_lo; #endif - - if (M.x86.R_EDX == 0) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } + if (M.x86.R_EDX == 0) { + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_OF); + } else { + SET_FLAG(F_CF); + SET_FLAG(F_OF); + } } /**************************************************************************** @@ -2203,21 +2038,21 @@ Implements the IDIV instruction and side effects. ****************************************************************************/ void idiv_byte(u8 s) { - s32 dvd, div, mod; + s32 dvd, div, mod; - dvd = (s16) M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (s8) s; - mod = dvd % (s8) s; - if (abs(div) > 0x7f) { - x86emu_intr_raise(0); - return; - } - M.x86.R_AL = (s8) div; - M.x86.R_AH = (s8) mod; + dvd = (s16)M.x86.R_AX; + if (s == 0) { + x86emu_intr_raise(0); + return; + } + div = dvd / (s8)s; + mod = dvd % (s8)s; + if (abs(div) > 0x7f) { + x86emu_intr_raise(0); + return; + } + M.x86.R_AL = (s8) div; + M.x86.R_AH = (s8) mod; } /**************************************************************************** @@ -2226,26 +2061,26 @@ Implements the IDIV instruction and side effects. ****************************************************************************/ void idiv_word(u16 s) { - s32 dvd, div, mod; + s32 dvd, div, mod; - dvd = (((s32) M.x86.R_DX) << 16) | M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (s16) s; - mod = dvd % (s16) s; - if (abs(div) > 0x7fff) { - x86emu_intr_raise(0); - return; - } - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(div == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); + dvd = (((s32)M.x86.R_DX) << 16) | M.x86.R_AX; + if (s == 0) { + x86emu_intr_raise(0); + return; + } + div = dvd / (s16)s; + mod = dvd % (s16)s; + if (abs(div) > 0x7fff) { + x86emu_intr_raise(0); + return; + } + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_SF); + CONDITIONAL_SET_FLAG(div == 0, F_ZF); + set_parity_flag(mod); - M.x86.R_AX = (u16) div; - M.x86.R_DX = (u16) mod; + M.x86.R_AX = (u16)div; + M.x86.R_DX = (u16)mod; } /**************************************************************************** @@ -2254,72 +2089,72 @@ Implements the IDIV instruction and side effects. ****************************************************************************/ void idiv_long(u32 s) { -#ifdef __HAS_LONG_LONG__ - s64 dvd, div, mod; - - dvd = (((s64) M.x86.R_EDX) << 32) | M.x86.R_EAX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (s32) s; - mod = dvd % (s32) s; - if (abs(div) > 0x7fffffff) { - x86emu_intr_raise(0); - return; - } +#ifdef __HAS_LONG_LONG__ + s64 dvd, div, mod; + + dvd = (((s64)M.x86.R_EDX) << 32) | M.x86.R_EAX; + if (s == 0) { + x86emu_intr_raise(0); + return; + } + div = dvd / (s32)s; + mod = dvd % (s32)s; + if (abs(div) > 0x7fffffff) { + x86emu_intr_raise(0); + return; + } #else - s32 div = 0, mod; - s32 h_dvd = M.x86.R_EDX; - u32 l_dvd = M.x86.R_EAX; - u32 abs_s = s & 0x7FFFFFFF; - u32 abs_h_dvd = h_dvd & 0x7FFFFFFF; - u32 h_s = abs_s >> 1; - u32 l_s = abs_s << 31; - int counter = 31; - int carry; - - if (s == 0) { - x86emu_intr_raise(0); - return; - } - do { - div <<= 1; - carry = (l_dvd >= l_s) ? 0 : 1; - - if (abs_h_dvd < (h_s + carry)) { - h_s >>= 1; - l_s = abs_s << (--counter); - continue; - } else { - abs_h_dvd -= (h_s + carry); - l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1) - : (l_dvd - l_s); - h_s >>= 1; - l_s = abs_s << (--counter); - div |= 1; - continue; - } - - } while (counter > -1); - /* overflow */ - if (abs_h_dvd || (l_dvd > abs_s)) { - x86emu_intr_raise(0); - return; - } - /* sign */ - div |= ((h_dvd & 0x10000000) ^ (s & 0x10000000)); - mod = l_dvd; + s32 div = 0, mod; + s32 h_dvd = M.x86.R_EDX; + u32 l_dvd = M.x86.R_EAX; + u32 abs_s = s & 0x7FFFFFFF; + u32 abs_h_dvd = h_dvd & 0x7FFFFFFF; + u32 h_s = abs_s >> 1; + u32 l_s = abs_s << 31; + int counter = 31; + int carry; + + if (s == 0) { + x86emu_intr_raise(0); + return; + } + do { + div <<= 1; + carry = (l_dvd >= l_s) ? 0 : 1; + + if (abs_h_dvd < (h_s + carry)) { + h_s >>= 1; + l_s = abs_s << (--counter); + continue; + } else { + abs_h_dvd -= (h_s + carry); + l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1) + : (l_dvd - l_s); + h_s >>= 1; + l_s = abs_s << (--counter); + div |= 1; + continue; + } + + } while (counter > -1); + /* overflow */ + if (abs_h_dvd || (l_dvd > abs_s)) { + x86emu_intr_raise(0); + return; + } + /* sign */ + div |= ((h_dvd & 0x10000000) ^ (s & 0x10000000)); + mod = l_dvd; #endif - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_AF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_ZF); + set_parity_flag(mod); - M.x86.R_EAX = (u32) div; - M.x86.R_EDX = (u32) mod; + M.x86.R_EAX = (u32)div; + M.x86.R_EDX = (u32)mod; } /**************************************************************************** @@ -2328,21 +2163,21 @@ Implements the DIV instruction and side effects. ****************************************************************************/ void div_byte(u8 s) { - u32 dvd, div, mod; + u32 dvd, div, mod; - dvd = M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (u8) s; - mod = dvd % (u8) s; - if (abs(div) > 0xff) { - x86emu_intr_raise(0); - return; - } - M.x86.R_AL = (u8) div; - M.x86.R_AH = (u8) mod; + dvd = M.x86.R_AX; + if (s == 0) { + x86emu_intr_raise(0); + return; + } + div = dvd / (u8)s; + mod = dvd % (u8)s; + if (abs(div) > 0xff) { + x86emu_intr_raise(0); + return; + } + M.x86.R_AL = (u8)div; + M.x86.R_AH = (u8)mod; } /**************************************************************************** @@ -2351,26 +2186,26 @@ Implements the DIV instruction and side effects. ****************************************************************************/ void div_word(u16 s) { - u32 dvd, div, mod; + u32 dvd, div, mod; - dvd = (((u32) M.x86.R_DX) << 16) | M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (u16) s; - mod = dvd % (u16) s; - if (abs(div) > 0xffff) { - x86emu_intr_raise(0); - return; - } - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(div == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); + dvd = (((u32)M.x86.R_DX) << 16) | M.x86.R_AX; + if (s == 0) { + x86emu_intr_raise(0); + return; + } + div = dvd / (u16)s; + mod = dvd % (u16)s; + if (abs(div) > 0xffff) { + x86emu_intr_raise(0); + return; + } + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_SF); + CONDITIONAL_SET_FLAG(div == 0, F_ZF); + set_parity_flag(mod); - M.x86.R_AX = (u16) div; - M.x86.R_DX = (u16) mod; + M.x86.R_AX = (u16)div; + M.x86.R_DX = (u16)mod; } /**************************************************************************** @@ -2379,212 +2214,167 @@ Implements the DIV instruction and side effects. ****************************************************************************/ void div_long(u32 s) { -#ifdef __HAS_LONG_LONG__ - u64 dvd, div, mod; - - dvd = (((u64) M.x86.R_EDX) << 32) | M.x86.R_EAX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (u32) s; - mod = dvd % (u32) s; - if (abs(div) > 0xffffffff) { - x86emu_intr_raise(0); - return; - } +#ifdef __HAS_LONG_LONG__ + u64 dvd, div, mod; + + dvd = (((u64)M.x86.R_EDX) << 32) | M.x86.R_EAX; + if (s == 0) { + x86emu_intr_raise(0); + return; + } + div = dvd / (u32)s; + mod = dvd % (u32)s; + if (abs(div) > 0xffffffff) { + x86emu_intr_raise(0); + return; + } #else - s32 div = 0, mod; - s32 h_dvd = M.x86.R_EDX; - u32 l_dvd = M.x86.R_EAX; - - u32 h_s = s; - u32 l_s = 0; - int counter = 32; - int carry; - - if (s == 0) { - x86emu_intr_raise(0); - return; - } - do { - div <<= 1; - carry = (l_dvd >= l_s) ? 0 : 1; - - if (h_dvd < (h_s + carry)) { - h_s >>= 1; - l_s = s << (--counter); - continue; - } else { - h_dvd -= (h_s + carry); - l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1) - : (l_dvd - l_s); - h_s >>= 1; - l_s = s << (--counter); - div |= 1; - continue; - } - - } while (counter > -1); - /* overflow */ - if (h_dvd || (l_dvd > s)) { - x86emu_intr_raise(0); - return; - } - mod = l_dvd; + s32 div = 0, mod; + s32 h_dvd = M.x86.R_EDX; + u32 l_dvd = M.x86.R_EAX; + + u32 h_s = s; + u32 l_s = 0; + int counter = 32; + int carry; + + if (s == 0) { + x86emu_intr_raise(0); + return; + } + do { + div <<= 1; + carry = (l_dvd >= l_s) ? 0 : 1; + + if (h_dvd < (h_s + carry)) { + h_s >>= 1; + l_s = s << (--counter); + continue; + } else { + h_dvd -= (h_s + carry); + l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1) + : (l_dvd - l_s); + h_s >>= 1; + l_s = s << (--counter); + div |= 1; + continue; + } + + } while (counter > -1); + /* overflow */ + if (h_dvd || (l_dvd > s)) { + x86emu_intr_raise(0); + return; + } + mod = l_dvd; #endif - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); + CLEAR_FLAG(F_CF); + CLEAR_FLAG(F_AF); + CLEAR_FLAG(F_SF); + SET_FLAG(F_ZF); + set_parity_flag(mod); - M.x86.R_EAX = (u32) div; - M.x86.R_EDX = (u32) mod; + M.x86.R_EAX = (u32)div; + M.x86.R_EDX = (u32)mod; } -#endif /* __HAVE_INLINE_ASSEMBLER__ */ - /**************************************************************************** REMARKS: Implements the IN string instruction and side effects. ****************************************************************************/ + +static void single_in(int size) +{ + if(size == 1) + store_data_byte_abs(M.x86.R_ES, M.x86.R_DI,(*sys_inb)(M.x86.R_DX)); + else if (size == 2) + store_data_word_abs(M.x86.R_ES, M.x86.R_DI,(*sys_inw)(M.x86.R_DX)); + else + store_data_long_abs(M.x86.R_ES, M.x86.R_DI,(*sys_inl)(M.x86.R_DX)); +} + void ins(int size) { - int inc = size; - - if (ACCESS_FLAG(F_DF)) { - inc = -size; - } - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* in until CX is ZERO. */ - u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ? - M.x86.R_ECX : M.x86.R_CX); - switch (size) { - case 1: - while (count--) { - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inb) (M.x86.R_DX)); - M.x86.R_DI += inc; - } - break; - - case 2: - while (count--) { - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inw) (M.x86.R_DX)); - M.x86.R_DI += inc; - } - break; - case 4: - while (count--) { - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inl) (M.x86.R_DX)); - M.x86.R_DI += inc; - break; - } - } - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = 0; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - switch (size) { - case 1: - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inb) (M.x86.R_DX)); - break; - case 2: - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inw) (M.x86.R_DX)); - break; - case 4: - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inl) (M.x86.R_DX)); - break; - } - M.x86.R_DI += inc; - } + int inc = size; + + if (ACCESS_FLAG(F_DF)) { + inc = -size; + } + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* in until CX is ZERO. */ + u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ? + M.x86.R_ECX : M.x86.R_CX); + + while (count--) { + single_in(size); + M.x86.R_DI += inc; + } + M.x86.R_CX = 0; + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_ECX = 0; + } + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } else { + single_in(size); + M.x86.R_DI += inc; + } } /**************************************************************************** REMARKS: Implements the OUT string instruction and side effects. ****************************************************************************/ + +static void single_out(int size) +{ + if(size == 1) + (*sys_outb)(M.x86.R_DX,fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI)); + else if (size == 2) + (*sys_outw)(M.x86.R_DX,fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI)); + else + (*sys_outl)(M.x86.R_DX,fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI)); +} + void outs(int size) { - int inc = size; - - if (ACCESS_FLAG(F_DF)) { - inc = -size; - } - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* out until CX is ZERO. */ - u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ? - M.x86.R_ECX : M.x86.R_CX); - switch (size) { - case 1: - while (count--) { - (*sys_outb) (M.x86.R_DX, - fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI)); - M.x86.R_SI += inc; - } - break; - - case 2: - while (count--) { - (*sys_outw) (M.x86.R_DX, - fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI)); - M.x86.R_SI += inc; - } - break; - case 4: - while (count--) { - (*sys_outl) (M.x86.R_DX, - fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI)); - M.x86.R_SI += inc; - break; - } - } - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = 0; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - switch (size) { - case 1: - (*sys_outb) (M.x86.R_DX, - fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI)); - break; - case 2: - (*sys_outw) (M.x86.R_DX, - fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI)); - break; - case 4: - (*sys_outl) (M.x86.R_DX, - fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI)); - break; - } - M.x86.R_SI += inc; - } + int inc = size; + + if (ACCESS_FLAG(F_DF)) { + inc = -size; + } + if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { + /* dont care whether REPE or REPNE */ + /* out until CX is ZERO. */ + u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ? + M.x86.R_ECX : M.x86.R_CX); + while (count--) { + single_out(size); + M.x86.R_SI += inc; + } + M.x86.R_CX = 0; + if (M.x86.mode & SYSMODE_PREFIX_DATA) { + M.x86.R_ECX = 0; + } + M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); + } else { + single_out(size); + M.x86.R_SI += inc; + } } /**************************************************************************** PARAMETERS: -addr - Address to fetch word from +addr - Address to fetch word from REMARKS: Fetches a word from emulator memory using an absolute address. ****************************************************************************/ u16 mem_access_word(int addr) { - DB(if (CHECK_MEM_ACCESS()) - x86emu_check_mem_access(addr);) - return (*sys_rdw) (addr); +DB( if (CHECK_MEM_ACCESS()) + x86emu_check_mem_access(addr);) + return (*sys_rdw)(addr); } /**************************************************************************** @@ -2595,10 +2385,10 @@ NOTE: Do not inline this, as (*sys_wrX) is already inline! ****************************************************************************/ void push_word(u16 w) { - DB(if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - M.x86.R_SP -= 2; - (*sys_wrw) (((u32) M.x86.R_SS << 4) + M.x86.R_SP, w); +DB( if (CHECK_SP_ACCESS()) + x86emu_check_sp_access();) + M.x86.R_SP -= 2; + (*sys_wrw)(((u32)M.x86.R_SS << 4) + M.x86.R_SP, w); } /**************************************************************************** @@ -2609,10 +2399,10 @@ NOTE: Do not inline this, as (*sys_wrX) is already inline! ****************************************************************************/ void push_long(u32 w) { - DB(if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - M.x86.R_SP -= 4; - (*sys_wrl) (((u32) M.x86.R_SS << 4) + M.x86.R_SP, w); +DB( if (CHECK_SP_ACCESS()) + x86emu_check_sp_access();) + M.x86.R_SP -= 4; + (*sys_wrl)(((u32)M.x86.R_SS << 4) + M.x86.R_SP, w); } /**************************************************************************** @@ -2623,13 +2413,13 @@ NOTE: Do not inline this, as (*sys_rdX) is already inline! ****************************************************************************/ u16 pop_word(void) { - register u16 res; + u16 res; - DB(if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - res = (*sys_rdw) (((u32) M.x86.R_SS << 4) + M.x86.R_SP); - M.x86.R_SP += 2; - return res; +DB( if (CHECK_SP_ACCESS()) + x86emu_check_sp_access();) + res = (*sys_rdw)(((u32)M.x86.R_SS << 4) + M.x86.R_SP); + M.x86.R_SP += 2; + return res; } /**************************************************************************** @@ -2640,432 +2430,12 @@ NOTE: Do not inline this, as (*sys_rdX) is already inline! ****************************************************************************/ u32 pop_long(void) { - register u32 res; - - DB(if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - res = (*sys_rdl) (((u32) M.x86.R_SS << 4) + M.x86.R_SP); - M.x86.R_SP += 4; - return res; -} - -#ifdef __HAVE_INLINE_ASSEMBLER__ - -u16 aaa_word(u16 d) -{ - return aaa_word_asm(&M.x86.R_EFLG, d); -} - -u16 aas_word(u16 d) -{ - return aas_word_asm(&M.x86.R_EFLG, d); -} - -u16 aad_word(u16 d) -{ - return aad_word_asm(&M.x86.R_EFLG, d); -} - -u16 aam_word(u8 d) -{ - return aam_word_asm(&M.x86.R_EFLG, d); -} - -u8 adc_byte(u8 d, u8 s) -{ - return adc_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 adc_word(u16 d, u16 s) -{ - return adc_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 adc_long(u32 d, u32 s) -{ - return adc_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 add_byte(u8 d, u8 s) -{ - return add_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 add_word(u16 d, u16 s) -{ - return add_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 add_long(u32 d, u32 s) -{ - return add_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 and_byte(u8 d, u8 s) -{ - return and_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 and_word(u16 d, u16 s) -{ - return and_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 and_long(u32 d, u32 s) -{ - return and_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 cmp_byte(u8 d, u8 s) -{ - return cmp_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 cmp_word(u16 d, u16 s) -{ - return cmp_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 cmp_long(u32 d, u32 s) -{ - return cmp_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 daa_byte(u8 d) -{ - return daa_byte_asm(&M.x86.R_EFLG, d); -} - -u8 das_byte(u8 d) -{ - return das_byte_asm(&M.x86.R_EFLG, d); -} - -u8 dec_byte(u8 d) -{ - return dec_byte_asm(&M.x86.R_EFLG, d); -} - -u16 dec_word(u16 d) -{ - return dec_word_asm(&M.x86.R_EFLG, d); -} - -u32 dec_long(u32 d) -{ - return dec_long_asm(&M.x86.R_EFLG, d); -} - -u8 inc_byte(u8 d) -{ - return inc_byte_asm(&M.x86.R_EFLG, d); -} - -u16 inc_word(u16 d) -{ - return inc_word_asm(&M.x86.R_EFLG, d); -} - -u32 inc_long(u32 d) -{ - return inc_long_asm(&M.x86.R_EFLG, d); -} - -u8 or_byte(u8 d, u8 s) -{ - return or_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 or_word(u16 d, u16 s) -{ - return or_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 or_long(u32 d, u32 s) -{ - return or_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 neg_byte(u8 s) -{ - return neg_byte_asm(&M.x86.R_EFLG, s); -} - -u16 neg_word(u16 s) -{ - return neg_word_asm(&M.x86.R_EFLG, s); -} - -u32 neg_long(u32 s) -{ - return neg_long_asm(&M.x86.R_EFLG, s); -} - -u8 not_byte(u8 s) -{ - return not_byte_asm(&M.x86.R_EFLG, s); -} - -u16 not_word(u16 s) -{ - return not_word_asm(&M.x86.R_EFLG, s); -} - -u32 not_long(u32 s) -{ - return not_long_asm(&M.x86.R_EFLG, s); -} - -u8 rcl_byte(u8 d, u8 s) -{ - return rcl_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 rcl_word(u16 d, u8 s) -{ - return rcl_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 rcl_long(u32 d, u8 s) -{ - return rcl_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 rcr_byte(u8 d, u8 s) -{ - return rcr_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 rcr_word(u16 d, u8 s) -{ - return rcr_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 rcr_long(u32 d, u8 s) -{ - return rcr_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 rol_byte(u8 d, u8 s) -{ - return rol_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 rol_word(u16 d, u8 s) -{ - return rol_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 rol_long(u32 d, u8 s) -{ - return rol_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 ror_byte(u8 d, u8 s) -{ - return ror_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 ror_word(u16 d, u8 s) -{ - return ror_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 ror_long(u32 d, u8 s) -{ - return ror_long_asm(&M.x86.R_EFLG, d, s); -} + u32 res; -u8 shl_byte(u8 d, u8 s) -{ - return shl_byte_asm(&M.x86.R_EFLG, d, s); +DB( if (CHECK_SP_ACCESS()) + x86emu_check_sp_access();) + res = (*sys_rdl)(((u32)M.x86.R_SS << 4) + M.x86.R_SP); + M.x86.R_SP += 4; + return res; } -u16 shl_word(u16 d, u8 s) -{ - return shl_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 shl_long(u32 d, u8 s) -{ - return shl_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 shr_byte(u8 d, u8 s) -{ - return shr_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 shr_word(u16 d, u8 s) -{ - return shr_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 shr_long(u32 d, u8 s) -{ - return shr_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 sar_byte(u8 d, u8 s) -{ - return sar_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 sar_word(u16 d, u8 s) -{ - return sar_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 sar_long(u32 d, u8 s) -{ - return sar_long_asm(&M.x86.R_EFLG, d, s); -} - -u16 shld_word(u16 d, u16 fill, u8 s) -{ - return shld_word_asm(&M.x86.R_EFLG, d, fill, s); -} - -u32 shld_long(u32 d, u32 fill, u8 s) -{ - return shld_long_asm(&M.x86.R_EFLG, d, fill, s); -} - -u16 shrd_word(u16 d, u16 fill, u8 s) -{ - return shrd_word_asm(&M.x86.R_EFLG, d, fill, s); -} - -u32 shrd_long(u32 d, u32 fill, u8 s) -{ - return shrd_long_asm(&M.x86.R_EFLG, d, fill, s); -} - -u8 sbb_byte(u8 d, u8 s) -{ - return sbb_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 sbb_word(u16 d, u16 s) -{ - return sbb_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 sbb_long(u32 d, u32 s) -{ - return sbb_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 sub_byte(u8 d, u8 s) -{ - return sub_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 sub_word(u16 d, u16 s) -{ - return sub_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 sub_long(u32 d, u32 s) -{ - return sub_long_asm(&M.x86.R_EFLG, d, s); -} - -void test_byte(u8 d, u8 s) -{ - test_byte_asm(&M.x86.R_EFLG, d, s); -} - -void test_word(u16 d, u16 s) -{ - test_word_asm(&M.x86.R_EFLG, d, s); -} - -void test_long(u32 d, u32 s) -{ - test_long_asm(&M.x86.R_EFLG, d, s); -} - -u8 xor_byte(u8 d, u8 s) -{ - return xor_byte_asm(&M.x86.R_EFLG, d, s); -} - -u16 xor_word(u16 d, u16 s) -{ - return xor_word_asm(&M.x86.R_EFLG, d, s); -} - -u32 xor_long(u32 d, u32 s) -{ - return xor_long_asm(&M.x86.R_EFLG, d, s); -} - -void imul_byte(u8 s) -{ - imul_byte_asm(&M.x86.R_EFLG, &M.x86.R_AX, M.x86.R_AL, s); -} - -void imul_word(u16 s) -{ - imul_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, s); -} - -void imul_long(u32 s) -{ - imul_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, s); -} - -void imul_long_direct(u32 * res_lo, u32 * res_hi, u32 d, u32 s) -{ - imul_long_asm(&M.x86.R_EFLG, res_lo, res_hi, d, s); -} - -void mul_byte(u8 s) -{ - mul_byte_asm(&M.x86.R_EFLG, &M.x86.R_AX, M.x86.R_AL, s); -} - -void mul_word(u16 s) -{ - mul_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, s); -} - -void mul_long(u32 s) -{ - mul_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, s); -} - -void idiv_byte(u8 s) -{ - idiv_byte_asm(&M.x86.R_EFLG, &M.x86.R_AL, &M.x86.R_AH, M.x86.R_AX, s); -} - -void idiv_word(u16 s) -{ - idiv_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, M.x86.R_DX, s); -} - -void idiv_long(u32 s) -{ - idiv_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, M.x86.R_EDX, - s); -} - -void div_byte(u8 s) -{ - div_byte_asm(&M.x86.R_EFLG, &M.x86.R_AL, &M.x86.R_AH, M.x86.R_AX, s); -} - -void div_word(u16 s) -{ - div_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, M.x86.R_DX, s); -} - -void div_long(u32 s) -{ - div_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, M.x86.R_EDX, - s); -} - -#endif diff --git a/util/vgabios/x86emu/src/x86emu/sys.c b/util/vgabios/x86emu/src/x86emu/sys.c index 43d830382d..aca28c7d77 100644 --- a/util/vgabios/x86emu/src/x86emu/sys.c +++ b/util/vgabios/x86emu/src/x86emu/sys.c @@ -198,7 +198,7 @@ u8 *mem_ptr(u32 addr, int size) retaddr = (u8 *) (M.abseg + addr); //printk("retaddr now 0x%p\n", retaddr); } else if (addr < 0x200) { - //printk("updating int vector 0x%x\n", addr >> 2); + printk("updating int vector 0x%x\n", addr >> 2); retaddr = (u8 *) (M.mem_base + addr); } else { retaddr = (u8 *) (M.mem_base + addr); diff --git a/util/vgabios/x86emu/src/x86emu/validate.c b/util/vgabios/x86emu/src/x86emu/validate.c index d6e948facf..d7b62e5f81 100644 --- a/util/vgabios/x86emu/src/x86emu/validate.c +++ b/util/vgabios/x86emu/src/x86emu/validate.c @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -47,20 +47,28 @@ #include <stdarg.h> #include "x86emu.h" #include "x86emu/prim_asm.h" +#include "x86emu/prim_ops.h" /*-------------------------- Implementation -------------------------------*/ #define true 1 #define false 0 +u32 cur_flags_mask = 0; + +int flags_are_different(u32 flags1, u32 flags2) +{ + return (flags1&cur_flags_mask) != (flags2&cur_flags_mask); +} + #define ALL_FLAGS (F_CF | F_PF | F_AF | F_ZF | F_SF | F_OF) #define VAL_START_BINARY(parm_type,res_type,dmax,smax,dincr,sincr) \ { \ parm_type d,s; \ res_type r,r_asm; \ - ulong flags,inflags; \ - int f,failed = false; \ + u32 flags,inflags; \ + int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < dmax; d += dincr) { \ for (s = 0; s < smax; s += sincr) { \ @@ -70,7 +78,7 @@ #define VAL_TEST_BINARY(name) \ r_asm = name##_asm(&flags,d,s); \ r = name(d,s); \ - if (r != r_asm || M.x86.R_EFLG != flags) \ + if (r != r_asm || flags_are_different(M.x86.R_EFLG, flags)) \ failed = true; \ if (failed || trace) { @@ -78,7 +86,7 @@ name##_asm(&flags,d,s); \ name(d,s); \ r = r_asm = 0; \ - if (M.x86.R_EFLG != flags) \ + if (flags_are_different(M.x86.R_EFLG, flags)) \ failed = true; \ if (failed || trace) { @@ -190,7 +198,7 @@ parm_type d,s; \ res_type r,r_asm; \ u8 shift; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < dmax; d += dincr) { \ @@ -202,7 +210,7 @@ #define VAL_TEST_TERNARY(name) \ r_asm = name##_asm(&flags,d,s,shift); \ r = name(d,s,shift); \ - if (r != r_asm || M.x86.R_EFLG != flags) \ + if (r != r_asm || flags_are_different(M.x86.R_EFLG, flags)) \ failed = true; \ if (failed || trace) { @@ -258,7 +266,7 @@ #define VAL_START_UNARY(parm_type,max,incr) \ { \ parm_type d,r,r_asm; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < max; d += incr) { \ @@ -268,7 +276,7 @@ #define VAL_TEST_UNARY(name) \ r_asm = name##_asm(&flags,d); \ r = name(d); \ - if (r != r_asm || M.x86.R_EFLG != flags) { \ + if (r != r_asm || flags_are_different(M.x86.R_EFLG, flags)) { \ failed = true; #define VAL_FAIL_BYTE_UNARY(name) \ @@ -338,7 +346,7 @@ { \ u8 d,s; \ u16 r,r_asm; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < 0xFF; d += 1) { \ @@ -349,7 +357,7 @@ M.x86.R_AL = d; \ name(s); \ r = M.x86.R_AX; \ - if (r != r_asm || M.x86.R_EFLG != flags) \ + if (r != r_asm || flags_are_different(M.x86.R_EFLG, flags)) \ failed = true; \ if (failed || trace) { \ if (failed) \ @@ -379,7 +387,7 @@ u16 d,s; \ u16 r_lo,r_asm_lo; \ u16 r_hi,r_asm_hi; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < 0xFF00; d += 0x100) { \ @@ -391,7 +399,7 @@ name(s); \ r_lo = M.x86.R_AX; \ r_hi = M.x86.R_DX; \ - if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\ + if (r_lo != r_asm_lo || r_hi != r_asm_hi || flags_are_different(M.x86.R_EFLG, flags))\ failed = true; \ if (failed || trace) { \ if (failed) \ @@ -421,7 +429,7 @@ u32 d,s; \ u32 r_lo,r_asm_lo; \ u32 r_hi,r_asm_hi; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < 0xFF000000; d += 0x1000000) { \ @@ -433,7 +441,7 @@ name(s); \ r_lo = M.x86.R_EAX; \ r_hi = M.x86.R_EDX; \ - if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\ + if (r_lo != r_asm_lo || r_hi != r_asm_hi || flags_are_different(M.x86.R_EFLG, flags))\ failed = true; \ if (failed || trace) { \ if (failed) \ @@ -462,7 +470,7 @@ { \ u16 d,s; \ u8 r_quot,r_rem,r_asm_quot,r_asm_rem; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < 0xFF00; d += 0x100) { \ @@ -477,7 +485,7 @@ if (M.x86.intr & INTR_SYNCH) \ continue; \ name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,s); \ - if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \ + if (r_quot != r_asm_quot || r_rem != r_asm_rem || flags_are_different(M.x86.R_EFLG, flags)) \ failed = true; \ if (failed || trace) { \ if (failed) \ @@ -506,7 +514,7 @@ { \ u32 d,s; \ u16 r_quot,r_rem,r_asm_quot,r_asm_rem; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < 0xFF000000; d += 0x1000000) { \ @@ -522,7 +530,7 @@ if (M.x86.intr & INTR_SYNCH) \ continue; \ name##_asm(&flags,&r_asm_quot,&r_asm_rem,d & 0xFFFF,d >> 16,s);\ - if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \ + if (r_quot != r_asm_quot || r_rem != r_asm_rem || flags_are_different(M.x86.R_EFLG, flags)) \ failed = true; \ if (failed || trace) { \ if (failed) \ @@ -551,7 +559,7 @@ { \ u32 d,s; \ u32 r_quot,r_rem,r_asm_quot,r_asm_rem; \ - u32 flags,inflags; \ + u32 flags,inflags; \ int f,failed = false; \ char buf1[80],buf2[80]; \ for (d = 0; d < 0xFF000000; d += 0x1000000) { \ @@ -567,7 +575,7 @@ if (M.x86.intr & INTR_SYNCH) \ continue; \ name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,0,s); \ - if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \ + if (r_quot != r_asm_quot || r_rem != r_asm_rem || flags_are_different(M.x86.R_EFLG, flags)) \ failed = true; \ if (failed || trace) { \ if (failed) \ @@ -593,173 +601,189 @@ void printk(const char *fmt, ...) { - va_list argptr; - va_start(argptr, fmt); - vfprintf(stdout, fmt, argptr); - fflush(stdout); - va_end(argptr); + va_list argptr; + va_start(argptr, fmt); + vfprintf(stdout, fmt, argptr); + fflush(stdout); + va_end(argptr); } -char *print_flags(char *buf, ulong flags) +char * print_flags(char *buf,ulong flags) { - char *separator = ""; - - buf[0] = 0; - if (flags & F_CF) { - strcat(buf, separator); - strcat(buf, "CF"); - separator = ","; - } - if (flags & F_PF) { - strcat(buf, separator); - strcat(buf, "PF"); - separator = ","; - } - if (flags & F_AF) { - strcat(buf, separator); - strcat(buf, "AF"); - separator = ","; - } - if (flags & F_ZF) { - strcat(buf, separator); - strcat(buf, "ZF"); - separator = ","; - } - if (flags & F_SF) { - strcat(buf, separator); - strcat(buf, "SF"); - separator = ","; - } - if (flags & F_OF) { - strcat(buf, separator); - strcat(buf, "OF"); - separator = ","; - } - if (separator[0] == 0) - strcpy(buf, "None"); - return buf; + char *separator = ""; + + buf[0] = 0; + if (flags & F_CF) { + strcat(buf,separator); + strcat(buf,"CF"); + separator = ","; + } + if (flags & F_PF) { + strcat(buf,separator); + strcat(buf,"PF"); + separator = ","; + } + if (flags & F_AF) { + strcat(buf,separator); + strcat(buf,"AF"); + separator = ","; + } + if (flags & F_ZF) { + strcat(buf,separator); + strcat(buf,"ZF"); + separator = ","; + } + if (flags & F_SF) { + strcat(buf,separator); + strcat(buf,"SF"); + separator = ","; + } + if (flags & F_OF) { + strcat(buf,separator); + strcat(buf,"OF"); + separator = ","; + } + if (separator[0] == 0) + strcpy(buf,"None"); + return buf; } -int main(int argc) +int main(int argc, char *argv[]) { - ulong def_flags; - int trace = false; - - if (argc > 1) - trace = true; - memset(&M, 0, sizeof(M)); - def_flags = get_flags_asm() & ~ALL_FLAGS; - - VAL_WORD_UNARY(aaa_word); - VAL_WORD_UNARY(aas_word); - - VAL_WORD_UNARY(aad_word); - VAL_WORD_UNARY(aam_word); - - VAL_BYTE_BYTE_BINARY(adc_byte); - VAL_WORD_WORD_BINARY(adc_word); - VAL_LONG_LONG_BINARY(adc_long); - - VAL_BYTE_BYTE_BINARY(add_byte); - VAL_WORD_WORD_BINARY(add_word); - VAL_LONG_LONG_BINARY(add_long); - - VAL_BYTE_BYTE_BINARY(and_byte); - VAL_WORD_WORD_BINARY(and_word); - VAL_LONG_LONG_BINARY(and_long); - - VAL_BYTE_BYTE_BINARY(cmp_byte); - VAL_WORD_WORD_BINARY(cmp_word); - VAL_LONG_LONG_BINARY(cmp_long); - - VAL_BYTE_UNARY(daa_byte); - VAL_BYTE_UNARY(das_byte); // Fails for 0x9A (out of range anyway) - - VAL_BYTE_UNARY(dec_byte); - VAL_WORD_UNARY(dec_word); - VAL_LONG_UNARY(dec_long); - - VAL_BYTE_UNARY(inc_byte); - VAL_WORD_UNARY(inc_word); - VAL_LONG_UNARY(inc_long); - - VAL_BYTE_BYTE_BINARY(or_byte); - VAL_WORD_WORD_BINARY(or_word); - VAL_LONG_LONG_BINARY(or_long); - - VAL_BYTE_UNARY(neg_byte); - VAL_WORD_UNARY(neg_word); - VAL_LONG_UNARY(neg_long); - - VAL_BYTE_UNARY(not_byte); - VAL_WORD_UNARY(not_word); - VAL_LONG_UNARY(not_long); - - VAL_BYTE_ROTATE(rcl_byte); - VAL_WORD_ROTATE(rcl_word); - VAL_LONG_ROTATE(rcl_long); - - VAL_BYTE_ROTATE(rcr_byte); - VAL_WORD_ROTATE(rcr_word); - VAL_LONG_ROTATE(rcr_long); - - VAL_BYTE_ROTATE(rol_byte); - VAL_WORD_ROTATE(rol_word); - VAL_LONG_ROTATE(rol_long); - - VAL_BYTE_ROTATE(ror_byte); - VAL_WORD_ROTATE(ror_word); - VAL_LONG_ROTATE(ror_long); - - VAL_BYTE_ROTATE(shl_byte); - VAL_WORD_ROTATE(shl_word); - VAL_LONG_ROTATE(shl_long); - - VAL_BYTE_ROTATE(shr_byte); - VAL_WORD_ROTATE(shr_word); - VAL_LONG_ROTATE(shr_long); - - VAL_BYTE_ROTATE(sar_byte); - VAL_WORD_ROTATE(sar_word); - VAL_LONG_ROTATE(sar_long); - - VAL_WORD_ROTATE_DBL(shld_word); - VAL_LONG_ROTATE_DBL(shld_long); - - VAL_WORD_ROTATE_DBL(shrd_word); - VAL_LONG_ROTATE_DBL(shrd_long); - - VAL_BYTE_BYTE_BINARY(sbb_byte); - VAL_WORD_WORD_BINARY(sbb_word); - VAL_LONG_LONG_BINARY(sbb_long); - - VAL_BYTE_BYTE_BINARY(sub_byte); - VAL_WORD_WORD_BINARY(sub_word); - VAL_LONG_LONG_BINARY(sub_long); - - VAL_BYTE_BYTE_BINARY(xor_byte); - VAL_WORD_WORD_BINARY(xor_word); - VAL_LONG_LONG_BINARY(xor_long); - - VAL_VOID_BYTE_BINARY(test_byte); - VAL_VOID_WORD_BINARY(test_word); - VAL_VOID_LONG_BINARY(test_long); - - VAL_BYTE_MUL(imul_byte); - VAL_WORD_MUL(imul_word); - VAL_LONG_MUL(imul_long); - - VAL_BYTE_MUL(mul_byte); - VAL_WORD_MUL(mul_word); - VAL_LONG_MUL(mul_long); - - VAL_BYTE_DIV(idiv_byte); - VAL_WORD_DIV(idiv_word); - VAL_LONG_DIV(idiv_long); - - VAL_BYTE_DIV(div_byte); - VAL_WORD_DIV(div_word); - VAL_LONG_DIV(div_long); - - return 0; + u32 def_flags; + int trace = false; + + if (argc > 1) + trace = true; + memset(&M, 0, sizeof(M)); + def_flags = get_flags_asm() & ~ALL_FLAGS; + + cur_flags_mask = F_AF | F_CF; + VAL_WORD_UNARY(aaa_word); + VAL_WORD_UNARY(aas_word); + + cur_flags_mask = F_SF | F_ZF | F_PF; + VAL_WORD_UNARY(aad_word); + VAL_WORD_UNARY(aam_word); + + cur_flags_mask = ALL_FLAGS; + VAL_BYTE_BYTE_BINARY(adc_byte); + VAL_WORD_WORD_BINARY(adc_word); + VAL_LONG_LONG_BINARY(adc_long); + + VAL_BYTE_BYTE_BINARY(add_byte); + VAL_WORD_WORD_BINARY(add_word); + VAL_LONG_LONG_BINARY(add_long); + + cur_flags_mask = ALL_FLAGS & (~F_AF); + VAL_BYTE_BYTE_BINARY(and_byte); + VAL_WORD_WORD_BINARY(and_word); + VAL_LONG_LONG_BINARY(and_long); + + cur_flags_mask = ALL_FLAGS; + VAL_BYTE_BYTE_BINARY(cmp_byte); + VAL_WORD_WORD_BINARY(cmp_word); + VAL_LONG_LONG_BINARY(cmp_long); + + cur_flags_mask = ALL_FLAGS & (~F_OF); + VAL_BYTE_UNARY(daa_byte); + VAL_BYTE_UNARY(das_byte); // Fails for 0x9A (out of range anyway) + + cur_flags_mask = ALL_FLAGS; + VAL_BYTE_UNARY(dec_byte); + VAL_WORD_UNARY(dec_word); + VAL_LONG_UNARY(dec_long); + + VAL_BYTE_UNARY(inc_byte); + VAL_WORD_UNARY(inc_word); + VAL_LONG_UNARY(inc_long); + + cur_flags_mask = ALL_FLAGS & (~F_AF); + VAL_BYTE_BYTE_BINARY(or_byte); + VAL_WORD_WORD_BINARY(or_word); + VAL_LONG_LONG_BINARY(or_long); + + cur_flags_mask = ALL_FLAGS; + VAL_BYTE_UNARY(neg_byte); + VAL_WORD_UNARY(neg_word); + VAL_LONG_UNARY(neg_long); + + VAL_BYTE_UNARY(not_byte); + VAL_WORD_UNARY(not_word); + VAL_LONG_UNARY(not_long); + + cur_flags_mask = ALL_FLAGS & (~F_OF); + VAL_BYTE_ROTATE(rcl_byte); + VAL_WORD_ROTATE(rcl_word); + VAL_LONG_ROTATE(rcl_long); + + VAL_BYTE_ROTATE(rcr_byte); + VAL_WORD_ROTATE(rcr_word); + VAL_LONG_ROTATE(rcr_long); + + VAL_BYTE_ROTATE(rol_byte); + VAL_WORD_ROTATE(rol_word); + VAL_LONG_ROTATE(rol_long); + + VAL_BYTE_ROTATE(ror_byte); + VAL_WORD_ROTATE(ror_word); + VAL_LONG_ROTATE(ror_long); + + cur_flags_mask = ALL_FLAGS & (~(F_AF | F_OF)); + VAL_BYTE_ROTATE(shl_byte); + VAL_WORD_ROTATE(shl_word); + VAL_LONG_ROTATE(shl_long); + + VAL_BYTE_ROTATE(shr_byte); + VAL_WORD_ROTATE(shr_word); + VAL_LONG_ROTATE(shr_long); + + VAL_BYTE_ROTATE(sar_byte); + VAL_WORD_ROTATE(sar_word); + VAL_LONG_ROTATE(sar_long); + + cur_flags_mask = ALL_FLAGS & (~(F_AF | F_OF)); + VAL_WORD_ROTATE_DBL(shld_word); + VAL_LONG_ROTATE_DBL(shld_long); + + VAL_WORD_ROTATE_DBL(shrd_word); + VAL_LONG_ROTATE_DBL(shrd_long); + + cur_flags_mask = ALL_FLAGS; + VAL_BYTE_BYTE_BINARY(sbb_byte); + VAL_WORD_WORD_BINARY(sbb_word); + VAL_LONG_LONG_BINARY(sbb_long); + + VAL_BYTE_BYTE_BINARY(sub_byte); + VAL_WORD_WORD_BINARY(sub_word); + VAL_LONG_LONG_BINARY(sub_long); + + cur_flags_mask = ALL_FLAGS & (~F_AF); + VAL_BYTE_BYTE_BINARY(xor_byte); + VAL_WORD_WORD_BINARY(xor_word); + VAL_LONG_LONG_BINARY(xor_long); + + VAL_VOID_BYTE_BINARY(test_byte); + VAL_VOID_WORD_BINARY(test_word); + VAL_VOID_LONG_BINARY(test_long); + + cur_flags_mask = F_CF | F_OF; + VAL_BYTE_MUL(imul_byte); + VAL_WORD_MUL(imul_word); + VAL_LONG_MUL(imul_long); + + VAL_BYTE_MUL(mul_byte); + VAL_WORD_MUL(mul_word); + VAL_LONG_MUL(mul_long); + + cur_flags_mask = 0; + VAL_BYTE_DIV(idiv_byte); + VAL_WORD_DIV(idiv_word); + VAL_LONG_DIV(idiv_long); + + VAL_BYTE_DIV(div_byte); + VAL_WORD_DIV(div_word); + VAL_LONG_DIV(div_long); + + return 0; } diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/debug.h b/util/vgabios/x86emu/src/x86emu/x86emu/debug.h index 56221cbbaf..95a109b261 100755 --- a/util/vgabios/x86emu/src/x86emu/x86emu/debug.h +++ b/util/vgabios/x86emu/src/x86emu/x86emu/debug.h @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,14 +28,13 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: Header file for debug definitions. * ****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/x86emu/debug.h,v 1.4 2000/11/21 23:10:27 tsi Exp $ */ #ifndef __X86EMU_DEBUG_H #define __X86EMU_DEBUG_H @@ -50,10 +49,10 @@ #define CHECK_DATA_ACCESS_F 0x8 /*using segment:offset*/ #ifdef DEBUG -# define CHECK_IP_FETCH() (M.x86.check & CHECK_IP_FETCH_F) -# define CHECK_SP_ACCESS() (M.x86.check & CHECK_SP_ACCESS_F) -# define CHECK_MEM_ACCESS() (M.x86.check & CHECK_MEM_ACCESS_F) -# define CHECK_DATA_ACCESS() (M.x86.check & CHECK_DATA_ACCESS_F) +# define CHECK_IP_FETCH() (M.x86.check & CHECK_IP_FETCH_F) +# define CHECK_SP_ACCESS() (M.x86.check & CHECK_SP_ACCESS_F) +# define CHECK_MEM_ACCESS() (M.x86.check & CHECK_MEM_ACCESS_F) +# define CHECK_DATA_ACCESS() (M.x86.check & CHECK_DATA_ACCESS_F) #else # define CHECK_IP_FETCH() # define CHECK_SP_ACCESS() @@ -62,50 +61,50 @@ #endif #ifdef DEBUG -# define DEBUG_INSTRUMENT() (M.x86.debug & DEBUG_INSTRUMENT_F) -# define DEBUG_DECODE() (M.x86.debug & DEBUG_DECODE_F) -# define DEBUG_TRACE() (M.x86.debug & DEBUG_TRACE_F) -# define DEBUG_STEP() (M.x86.debug & DEBUG_STEP_F) -# define DEBUG_DISASSEMBLE() (M.x86.debug & DEBUG_DISASSEMBLE_F) -# define DEBUG_BREAK() (M.x86.debug & DEBUG_BREAK_F) -# define DEBUG_SVC() (M.x86.debug & DEBUG_SVC_F) -# define DEBUG_SAVE_IP_CS() (M.x86.debug & DEBUG_SAVE_IP_CS_F) - -# define DEBUG_FS() (M.x86.debug & DEBUG_FS_F) -# define DEBUG_PROC() (M.x86.debug & DEBUG_PROC_F) -# define DEBUG_SYSINT() (M.x86.debug & DEBUG_SYSINT_F) -# define DEBUG_TRACECALL() (M.x86.debug & DEBUG_TRACECALL_F) -# define DEBUG_TRACECALLREGS() (M.x86.debug & DEBUG_TRACECALL_REGS_F) -# define DEBUG_SYS() (M.x86.debug & DEBUG_SYS_F) -# define DEBUG_MEM_TRACE() (M.x86.debug & DEBUG_MEM_TRACE_F) -# define DEBUG_IO_TRACE() (M.x86.debug & DEBUG_IO_TRACE_F) +# define DEBUG_INSTRUMENT() (M.x86.debug & DEBUG_INSTRUMENT_F) +# define DEBUG_DECODE() (M.x86.debug & DEBUG_DECODE_F) +# define DEBUG_TRACE() (M.x86.debug & DEBUG_TRACE_F) +# define DEBUG_STEP() (M.x86.debug & DEBUG_STEP_F) +# define DEBUG_DISASSEMBLE() (M.x86.debug & DEBUG_DISASSEMBLE_F) +# define DEBUG_BREAK() (M.x86.debug & DEBUG_BREAK_F) +# define DEBUG_SVC() (M.x86.debug & DEBUG_SVC_F) +# define DEBUG_SAVE_IP_CS() (M.x86.debug & DEBUG_SAVE_CS_IP) + +# define DEBUG_FS() (M.x86.debug & DEBUG_FS_F) +# define DEBUG_PROC() (M.x86.debug & DEBUG_PROC_F) +# define DEBUG_SYSINT() (M.x86.debug & DEBUG_SYSINT_F) +# define DEBUG_TRACECALL() (M.x86.debug & DEBUG_TRACECALL_F) +# define DEBUG_TRACECALLREGS() (M.x86.debug & DEBUG_TRACECALL_REGS_F) +# define DEBUG_SYS() (M.x86.debug & DEBUG_SYS_F) +# define DEBUG_MEM_TRACE() (M.x86.debug & DEBUG_MEM_TRACE_F) +# define DEBUG_IO_TRACE() (M.x86.debug & DEBUG_IO_TRACE_F) # define DEBUG_DECODE_NOPRINT() (M.x86.debug & DEBUG_DECODE_NOPRINT_F) #else -# define DEBUG_INSTRUMENT() 0 -# define DEBUG_DECODE() 0 -# define DEBUG_TRACE() 0 -# define DEBUG_STEP() 0 -# define DEBUG_DISASSEMBLE() 0 -# define DEBUG_BREAK() 0 -# define DEBUG_SVC() 0 +# define DEBUG_INSTRUMENT() 0 +# define DEBUG_DECODE() 0 +# define DEBUG_TRACE() 0 +# define DEBUG_STEP() 0 +# define DEBUG_DISASSEMBLE() 0 +# define DEBUG_BREAK() 0 +# define DEBUG_SVC() 0 # define DEBUG_SAVE_IP_CS() 0 -# define DEBUG_FS() 0 -# define DEBUG_PROC() 0 -# define DEBUG_SYSINT() 0 -# define DEBUG_TRACECALL() 0 -# define DEBUG_TRACECALLREGS() 0 -# define DEBUG_SYS() 0 -# define DEBUG_MEM_TRACE() 0 -# define DEBUG_IO_TRACE() 0 +# define DEBUG_FS() 0 +# define DEBUG_PROC() 0 +# define DEBUG_SYSINT() 0 +# define DEBUG_TRACECALL() 0 +# define DEBUG_TRACECALLREGS() 0 +# define DEBUG_SYS() 0 +# define DEBUG_MEM_TRACE() 0 +# define DEBUG_IO_TRACE() 0 # define DEBUG_DECODE_NOPRINT() 0 #endif #ifdef DEBUG -# define DECODE_PRINTF(x) if (DEBUG_DECODE()) \ - x86emu_decode_printf(x) -# define DECODE_PRINTF2(x,y) if (DEBUG_DECODE()) \ - x86emu_decode_printf2(x,y) +# define DECODE_PRINTF(x) if (DEBUG_DECODE()) \ + x86emu_decode_printf(x) +# define DECODE_PRINTF2(x,y) if (DEBUG_DECODE()) \ + x86emu_decode_printf2(x,y) /* * The following allow us to look at the bytes of an instruction. The @@ -113,16 +112,16 @@ * the decoding process. The SAVE_IP_CS is called initially when the * major opcode of the instruction is accessed. */ -#define INC_DECODED_INST_LEN(x) \ - if (DEBUG_DECODE()) \ - x86emu_inc_decoded_inst_len(x) +#define INC_DECODED_INST_LEN(x) \ + if (DEBUG_DECODE()) \ + x86emu_inc_decoded_inst_len(x) -#define SAVE_IP_CS(x,y) \ - if (DEBUG_DECODE() | DEBUG_TRACECALL() | DEBUG_BREAK() \ +#define SAVE_IP_CS(x,y) \ + if (DEBUG_DECODE() | DEBUG_TRACECALL() | DEBUG_BREAK() \ | DEBUG_IO_TRACE() | DEBUG_SAVE_IP_CS()) { \ - M.x86.saved_cs = x; \ - M.x86.saved_ip = y; \ - } + M.x86.saved_cs = x; \ + M.x86.saved_ip = y; \ + } #else # define INC_DECODED_INST_LEN(x) # define DECODE_PRINTF(x) @@ -131,30 +130,30 @@ #endif #ifdef DEBUG -#define TRACE_REGS() \ - if (DEBUG_DISASSEMBLE()) { \ - x86emu_just_disassemble(); \ - goto EndOfTheInstructionProcedure; \ - } \ - if (DEBUG_TRACE() || DEBUG_DECODE()) X86EMU_trace_regs() +#define TRACE_REGS() \ + if (DEBUG_DISASSEMBLE()) { \ + x86emu_just_disassemble(); \ + goto EndOfTheInstructionProcedure; \ + } \ + if (DEBUG_TRACE() || DEBUG_DECODE()) X86EMU_trace_regs() #else # define TRACE_REGS() #endif #ifdef DEBUG -# define SINGLE_STEP() if (DEBUG_STEP()) x86emu_single_step() +# define SINGLE_STEP() if (DEBUG_STEP()) x86emu_single_step() #else # define SINGLE_STEP() #endif -#define TRACE_AND_STEP() \ - TRACE_REGS(); \ - SINGLE_STEP() +#define TRACE_AND_STEP() \ + TRACE_REGS(); \ + SINGLE_STEP() #ifdef DEBUG # define START_OF_INSTR() -# define END_OF_INSTR() EndOfTheInstructionProcedure: x86emu_end_instr(); -# define END_OF_INSTR_NO_TRACE() x86emu_end_instr(); +# define END_OF_INSTR() EndOfTheInstructionProcedure: x86emu_end_instr(); +# define END_OF_INSTR_NO_TRACE() x86emu_end_instr(); #else # define START_OF_INSTR() # define END_OF_INSTR() @@ -163,30 +162,30 @@ #ifdef DEBUG # define CALL_TRACE(u,v,w,x,s) \ - if (DEBUG_TRACECALLREGS()) \ - x86emu_dump_regs(); \ - if (DEBUG_TRACECALL()) \ - printk("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x); + if (DEBUG_TRACECALLREGS()) \ + x86emu_dump_regs(); \ + if (DEBUG_TRACECALL()) \ + printk("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x); # define RETURN_TRACE(n,u,v) \ - if (DEBUG_TRACECALLREGS()) \ - x86emu_dump_regs(); \ - if (DEBUG_TRACECALL()) \ - printk("%04x:%04x: %s\n",u,v,n); + if (DEBUG_TRACECALLREGS()) \ + x86emu_dump_regs(); \ + if (DEBUG_TRACECALL()) \ + printk("%04x:%04x: %s\n",u,v,n); #else # define CALL_TRACE(u,v,w,x,s) # define RETURN_TRACE(n,u,v) #endif #ifdef DEBUG -#define DB(x) x +#define DB(x) x #else -#define DB(x) +#define DB(x) #endif /*-------------------------- Function Prototypes --------------------------*/ #ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ +extern "C" { /* Use "C" linkage when in C++ mode */ #endif extern void x86emu_inc_decoded_inst_len (int x); @@ -205,7 +204,7 @@ extern void x86emu_check_mem_access (u32 p); extern void x86emu_check_data_access (uint s, uint o); #ifdef __cplusplus -} /* End of "C" linkage for C++ */ +} /* End of "C" linkage for C++ */ #endif #endif /* __X86EMU_DEBUG_H */ diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/decode.h b/util/vgabios/x86emu/src/x86emu/x86emu/decode.h index 321a345399..77769f0094 100755 --- a/util/vgabios/x86emu/src/x86emu/x86emu/decode.h +++ b/util/vgabios/x86emu/src/x86emu/x86emu/decode.h @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,8 +28,8 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: Header file for instruction decoding logic. @@ -43,19 +43,19 @@ /* Instruction Decoding Stuff */ -#define FETCH_DECODE_MODRM(mod,rh,rl) fetch_decode_modrm(&mod,&rh,&rl) -#define DECODE_RM_BYTE_REGISTER(r) decode_rm_byte_register(r) -#define DECODE_RM_WORD_REGISTER(r) decode_rm_word_register(r) -#define DECODE_RM_LONG_REGISTER(r) decode_rm_long_register(r) -#define DECODE_CLEAR_SEGOVR() M.x86.mode &= ~SYSMODE_CLRMASK +#define FETCH_DECODE_MODRM(mod,rh,rl) fetch_decode_modrm(&mod,&rh,&rl) +#define DECODE_RM_BYTE_REGISTER(r) decode_rm_byte_register(r) +#define DECODE_RM_WORD_REGISTER(r) decode_rm_word_register(r) +#define DECODE_RM_LONG_REGISTER(r) decode_rm_long_register(r) +#define DECODE_CLEAR_SEGOVR() M.x86.mode &= ~SYSMODE_CLRMASK /*-------------------------- Function Prototypes --------------------------*/ #ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ +extern "C" { /* Use "C" linkage when in C++ mode */ #endif -void x86emu_intr_raise (u8 type); +void x86emu_intr_raise (u8 type); void fetch_decode_modrm (int *mod,int *regh,int *regl); u8 fetch_byte_imm (void); u16 fetch_word_imm (void); @@ -72,16 +72,17 @@ void store_data_word (uint offset, u16 val); void store_data_word_abs (uint segment, uint offset, u16 val); void store_data_long (uint offset, u32 val); void store_data_long_abs (uint segment, uint offset, u32 val); -u8* decode_rm_byte_register(int reg); -u16* decode_rm_word_register(int reg); -u32* decode_rm_long_register(int reg); -u16* decode_rm_seg_register(int reg); +u8* decode_rm_byte_register(int reg); +u16* decode_rm_word_register(int reg); +u32* decode_rm_long_register(int reg); +u16* decode_rm_seg_register(int reg); unsigned decode_rm00_address(int rm); unsigned decode_rm01_address(int rm); unsigned decode_rm10_address(int rm); +unsigned decode_rmXX_address(int mod, int rm); #ifdef __cplusplus -} /* End of "C" linkage for C++ */ +} /* End of "C" linkage for C++ */ #endif #endif /* __X86EMU_DECODE_H */ diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/fpu.h b/util/vgabios/x86emu/src/x86emu/x86emu/fpu.h index 5fb271463b..206c6eebba 100755 --- a/util/vgabios/x86emu/src/x86emu/x86emu/fpu.h +++ b/util/vgabios/x86emu/src/x86emu/x86emu/fpu.h @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,8 +28,8 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: Header file for FPU instruction decoding. @@ -40,7 +40,7 @@ #define __X86EMU_FPU_H #ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ +extern "C" { /* Use "C" linkage when in C++ mode */ #endif /* these have to be defined, whether 8087 support compiled in or not. */ @@ -55,7 +55,7 @@ extern void x86emuOp_esc_coprocess_de (u8 op1); extern void x86emuOp_esc_coprocess_df (u8 op1); #ifdef __cplusplus -} /* End of "C" linkage for C++ */ +} /* End of "C" linkage for C++ */ #endif #endif /* __X86EMU_FPU_H */ diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/ops.h b/util/vgabios/x86emu/src/x86emu/x86emu/ops.h index 65ea676543..a4f2316ba0 100755 --- a/util/vgabios/x86emu/src/x86emu/x86emu/ops.h +++ b/util/vgabios/x86emu/src/x86emu/x86emu/ops.h @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,8 +28,8 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: Header file for operand decoding functions. diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h b/util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h index 4fa8d55034..79d78e0b77 100755 --- a/util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h +++ b/util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,943 +28,1963 @@ * * ======================================================================== * -* Language: Watcom C++ 10.6 or later -* Environment: Any +* Language: Watcom C++ 10.6 or later +* Environment: Any * Developer: Kendall Bennett * * Description: Inline assembler versions of the primitive operand -* functions for faster performance. At the moment this is -* x86 inline assembler, but these functions could be replaced -* with native inline assembler for each supported processor -* platform. +* functions for faster performance. At the moment this is +* x86 inline assembler, but these functions could be replaced +* with native inline assembler for each supported processor +* platform. * ****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/x86emu/prim_asm.h,v 1.3 2000/04/19 15:48:15 tsi Exp $ */ -#ifndef __X86EMU_PRIM_ASM_H -#define __X86EMU_PRIM_ASM_H +#ifndef __X86EMU_PRIM_ASM_H +#define __X86EMU_PRIM_ASM_H -#ifdef __WATCOMC__ +#ifdef __WATCOMC__ -#ifndef VALIDATE -#define __HAVE_INLINE_ASSEMBLER__ +#ifndef VALIDATE +#define __HAVE_INLINE_ASSEMBLER__ #endif -u32 get_flags_asm(void); -#pragma aux get_flags_asm = \ - "pushf" \ - "pop eax" \ - value [eax] \ - modify exact [eax]; +u32 get_flags_asm(void); +#pragma aux get_flags_asm = \ + "pushf" \ + "pop eax" \ + value [eax] \ + modify exact [eax]; u16 aaa_word_asm(u32 *flags,u16 d); -#pragma aux aaa_word_asm = \ - "push [edi]" \ - "popf" \ - "aaa" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; +#pragma aux aaa_word_asm = \ + "push [edi]" \ + "popf" \ + "aaa" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] \ + value [ax] \ + modify exact [ax]; u16 aas_word_asm(u32 *flags,u16 d); -#pragma aux aas_word_asm = \ - "push [edi]" \ - "popf" \ - "aas" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; +#pragma aux aas_word_asm = \ + "push [edi]" \ + "popf" \ + "aas" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] \ + value [ax] \ + modify exact [ax]; u16 aad_word_asm(u32 *flags,u16 d); -#pragma aux aad_word_asm = \ - "push [edi]" \ - "popf" \ - "aad" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; +#pragma aux aad_word_asm = \ + "push [edi]" \ + "popf" \ + "aad" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] \ + value [ax] \ + modify exact [ax]; u16 aam_word_asm(u32 *flags,u8 d); -#pragma aux aam_word_asm = \ - "push [edi]" \ - "popf" \ - "aam" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [ax] \ - modify exact [ax]; +#pragma aux aam_word_asm = \ + "push [edi]" \ + "popf" \ + "aam" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] \ + value [ax] \ + modify exact [ax]; u8 adc_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux adc_byte_asm = \ - "push [edi]" \ - "popf" \ - "adc al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux adc_byte_asm = \ + "push [edi]" \ + "popf" \ + "adc al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 adc_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux adc_word_asm = \ - "push [edi]" \ - "popf" \ - "adc ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux adc_word_asm = \ + "push [edi]" \ + "popf" \ + "adc ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 adc_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux adc_long_asm = \ - "push [edi]" \ - "popf" \ - "adc eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; +#pragma aux adc_long_asm = \ + "push [edi]" \ + "popf" \ + "adc eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; u8 add_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux add_byte_asm = \ - "push [edi]" \ - "popf" \ - "add al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux add_byte_asm = \ + "push [edi]" \ + "popf" \ + "add al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 add_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux add_word_asm = \ - "push [edi]" \ - "popf" \ - "add ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux add_word_asm = \ + "push [edi]" \ + "popf" \ + "add ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 add_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux add_long_asm = \ - "push [edi]" \ - "popf" \ - "add eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; +#pragma aux add_long_asm = \ + "push [edi]" \ + "popf" \ + "add eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; u8 and_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux and_byte_asm = \ - "push [edi]" \ - "popf" \ - "and al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux and_byte_asm = \ + "push [edi]" \ + "popf" \ + "and al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 and_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux and_word_asm = \ - "push [edi]" \ - "popf" \ - "and ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux and_word_asm = \ + "push [edi]" \ + "popf" \ + "and ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 and_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux and_long_asm = \ - "push [edi]" \ - "popf" \ - "and eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; +#pragma aux and_long_asm = \ + "push [edi]" \ + "popf" \ + "and eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; u8 cmp_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux cmp_byte_asm = \ - "push [edi]" \ - "popf" \ - "cmp al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux cmp_byte_asm = \ + "push [edi]" \ + "popf" \ + "cmp al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 cmp_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux cmp_word_asm = \ - "push [edi]" \ - "popf" \ - "cmp ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux cmp_word_asm = \ + "push [edi]" \ + "popf" \ + "cmp ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 cmp_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux cmp_long_asm = \ - "push [edi]" \ - "popf" \ - "cmp eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; +#pragma aux cmp_long_asm = \ + "push [edi]" \ + "popf" \ + "cmp eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; u8 daa_byte_asm(u32 *flags,u8 d); -#pragma aux daa_byte_asm = \ - "push [edi]" \ - "popf" \ - "daa" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; +#pragma aux daa_byte_asm = \ + "push [edi]" \ + "popf" \ + "daa" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] \ + value [al] \ + modify exact [al]; u8 das_byte_asm(u32 *flags,u8 d); -#pragma aux das_byte_asm = \ - "push [edi]" \ - "popf" \ - "das" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; +#pragma aux das_byte_asm = \ + "push [edi]" \ + "popf" \ + "das" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] \ + value [al] \ + modify exact [al]; u8 dec_byte_asm(u32 *flags,u8 d); -#pragma aux dec_byte_asm = \ - "push [edi]" \ - "popf" \ - "dec al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; +#pragma aux dec_byte_asm = \ + "push [edi]" \ + "popf" \ + "dec al" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] \ + value [al] \ + modify exact [al]; u16 dec_word_asm(u32 *flags,u16 d); -#pragma aux dec_word_asm = \ - "push [edi]" \ - "popf" \ - "dec ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; +#pragma aux dec_word_asm = \ + "push [edi]" \ + "popf" \ + "dec ax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] \ + value [ax] \ + modify exact [ax]; u32 dec_long_asm(u32 *flags,u32 d); -#pragma aux dec_long_asm = \ - "push [edi]" \ - "popf" \ - "dec eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; +#pragma aux dec_long_asm = \ + "push [edi]" \ + "popf" \ + "dec eax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] \ + value [eax] \ + modify exact [eax]; u8 inc_byte_asm(u32 *flags,u8 d); -#pragma aux inc_byte_asm = \ - "push [edi]" \ - "popf" \ - "inc al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; +#pragma aux inc_byte_asm = \ + "push [edi]" \ + "popf" \ + "inc al" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] \ + value [al] \ + modify exact [al]; u16 inc_word_asm(u32 *flags,u16 d); -#pragma aux inc_word_asm = \ - "push [edi]" \ - "popf" \ - "inc ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; +#pragma aux inc_word_asm = \ + "push [edi]" \ + "popf" \ + "inc ax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] \ + value [ax] \ + modify exact [ax]; u32 inc_long_asm(u32 *flags,u32 d); -#pragma aux inc_long_asm = \ - "push [edi]" \ - "popf" \ - "inc eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; +#pragma aux inc_long_asm = \ + "push [edi]" \ + "popf" \ + "inc eax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] \ + value [eax] \ + modify exact [eax]; u8 or_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux or_byte_asm = \ - "push [edi]" \ - "popf" \ - "or al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux or_byte_asm = \ + "push [edi]" \ + "popf" \ + "or al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 or_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux or_word_asm = \ - "push [edi]" \ - "popf" \ - "or ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux or_word_asm = \ + "push [edi]" \ + "popf" \ + "or ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 or_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux or_long_asm = \ - "push [edi]" \ - "popf" \ - "or eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; +#pragma aux or_long_asm = \ + "push [edi]" \ + "popf" \ + "or eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; u8 neg_byte_asm(u32 *flags,u8 d); -#pragma aux neg_byte_asm = \ - "push [edi]" \ - "popf" \ - "neg al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; +#pragma aux neg_byte_asm = \ + "push [edi]" \ + "popf" \ + "neg al" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] \ + value [al] \ + modify exact [al]; u16 neg_word_asm(u32 *flags,u16 d); -#pragma aux neg_word_asm = \ - "push [edi]" \ - "popf" \ - "neg ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; +#pragma aux neg_word_asm = \ + "push [edi]" \ + "popf" \ + "neg ax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] \ + value [ax] \ + modify exact [ax]; u32 neg_long_asm(u32 *flags,u32 d); -#pragma aux neg_long_asm = \ - "push [edi]" \ - "popf" \ - "neg eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; +#pragma aux neg_long_asm = \ + "push [edi]" \ + "popf" \ + "neg eax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] \ + value [eax] \ + modify exact [eax]; u8 not_byte_asm(u32 *flags,u8 d); -#pragma aux not_byte_asm = \ - "push [edi]" \ - "popf" \ - "not al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; +#pragma aux not_byte_asm = \ + "push [edi]" \ + "popf" \ + "not al" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] \ + value [al] \ + modify exact [al]; u16 not_word_asm(u32 *flags,u16 d); -#pragma aux not_word_asm = \ - "push [edi]" \ - "popf" \ - "not ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; +#pragma aux not_word_asm = \ + "push [edi]" \ + "popf" \ + "not ax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] \ + value [ax] \ + modify exact [ax]; u32 not_long_asm(u32 *flags,u32 d); -#pragma aux not_long_asm = \ - "push [edi]" \ - "popf" \ - "not eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; +#pragma aux not_long_asm = \ + "push [edi]" \ + "popf" \ + "not eax" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] \ + value [eax] \ + modify exact [eax]; u8 rcl_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux rcl_byte_asm = \ - "push [edi]" \ - "popf" \ - "rcl al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; +#pragma aux rcl_byte_asm = \ + "push [edi]" \ + "popf" \ + "rcl al,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [cl] \ + value [al] \ + modify exact [al cl]; u16 rcl_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux rcl_word_asm = \ - "push [edi]" \ - "popf" \ - "rcl ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; +#pragma aux rcl_word_asm = \ + "push [edi]" \ + "popf" \ + "rcl ax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [cl] \ + value [ax] \ + modify exact [ax cl]; u32 rcl_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux rcl_long_asm = \ - "push [edi]" \ - "popf" \ - "rcl eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; +#pragma aux rcl_long_asm = \ + "push [edi]" \ + "popf" \ + "rcl eax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [cl] \ + value [eax] \ + modify exact [eax cl]; u8 rcr_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux rcr_byte_asm = \ - "push [edi]" \ - "popf" \ - "rcr al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; +#pragma aux rcr_byte_asm = \ + "push [edi]" \ + "popf" \ + "rcr al,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [cl] \ + value [al] \ + modify exact [al cl]; u16 rcr_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux rcr_word_asm = \ - "push [edi]" \ - "popf" \ - "rcr ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; +#pragma aux rcr_word_asm = \ + "push [edi]" \ + "popf" \ + "rcr ax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [cl] \ + value [ax] \ + modify exact [ax cl]; u32 rcr_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux rcr_long_asm = \ - "push [edi]" \ - "popf" \ - "rcr eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; +#pragma aux rcr_long_asm = \ + "push [edi]" \ + "popf" \ + "rcr eax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [cl] \ + value [eax] \ + modify exact [eax cl]; u8 rol_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux rol_byte_asm = \ - "push [edi]" \ - "popf" \ - "rol al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; +#pragma aux rol_byte_asm = \ + "push [edi]" \ + "popf" \ + "rol al,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [cl] \ + value [al] \ + modify exact [al cl]; u16 rol_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux rol_word_asm = \ - "push [edi]" \ - "popf" \ - "rol ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; +#pragma aux rol_word_asm = \ + "push [edi]" \ + "popf" \ + "rol ax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [cl] \ + value [ax] \ + modify exact [ax cl]; u32 rol_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux rol_long_asm = \ - "push [edi]" \ - "popf" \ - "rol eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; +#pragma aux rol_long_asm = \ + "push [edi]" \ + "popf" \ + "rol eax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [cl] \ + value [eax] \ + modify exact [eax cl]; u8 ror_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux ror_byte_asm = \ - "push [edi]" \ - "popf" \ - "ror al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; +#pragma aux ror_byte_asm = \ + "push [edi]" \ + "popf" \ + "ror al,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [cl] \ + value [al] \ + modify exact [al cl]; u16 ror_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux ror_word_asm = \ - "push [edi]" \ - "popf" \ - "ror ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; +#pragma aux ror_word_asm = \ + "push [edi]" \ + "popf" \ + "ror ax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [cl] \ + value [ax] \ + modify exact [ax cl]; u32 ror_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux ror_long_asm = \ - "push [edi]" \ - "popf" \ - "ror eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; +#pragma aux ror_long_asm = \ + "push [edi]" \ + "popf" \ + "ror eax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [cl] \ + value [eax] \ + modify exact [eax cl]; u8 shl_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux shl_byte_asm = \ - "push [edi]" \ - "popf" \ - "shl al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; +#pragma aux shl_byte_asm = \ + "push [edi]" \ + "popf" \ + "shl al,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [cl] \ + value [al] \ + modify exact [al cl]; u16 shl_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux shl_word_asm = \ - "push [edi]" \ - "popf" \ - "shl ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; +#pragma aux shl_word_asm = \ + "push [edi]" \ + "popf" \ + "shl ax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [cl] \ + value [ax] \ + modify exact [ax cl]; u32 shl_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux shl_long_asm = \ - "push [edi]" \ - "popf" \ - "shl eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; +#pragma aux shl_long_asm = \ + "push [edi]" \ + "popf" \ + "shl eax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [cl] \ + value [eax] \ + modify exact [eax cl]; u8 shr_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux shr_byte_asm = \ - "push [edi]" \ - "popf" \ - "shr al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; +#pragma aux shr_byte_asm = \ + "push [edi]" \ + "popf" \ + "shr al,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [cl] \ + value [al] \ + modify exact [al cl]; u16 shr_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux shr_word_asm = \ - "push [edi]" \ - "popf" \ - "shr ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; +#pragma aux shr_word_asm = \ + "push [edi]" \ + "popf" \ + "shr ax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [cl] \ + value [ax] \ + modify exact [ax cl]; u32 shr_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux shr_long_asm = \ - "push [edi]" \ - "popf" \ - "shr eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; +#pragma aux shr_long_asm = \ + "push [edi]" \ + "popf" \ + "shr eax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [cl] \ + value [eax] \ + modify exact [eax cl]; u8 sar_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux sar_byte_asm = \ - "push [edi]" \ - "popf" \ - "sar al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; +#pragma aux sar_byte_asm = \ + "push [edi]" \ + "popf" \ + "sar al,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [cl] \ + value [al] \ + modify exact [al cl]; u16 sar_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux sar_word_asm = \ - "push [edi]" \ - "popf" \ - "sar ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; +#pragma aux sar_word_asm = \ + "push [edi]" \ + "popf" \ + "sar ax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [cl] \ + value [ax] \ + modify exact [ax cl]; u32 sar_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux sar_long_asm = \ - "push [edi]" \ - "popf" \ - "sar eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u16 shld_word_asm(u32 *flags,u16 d, u16 fill, u8 s); -#pragma aux shld_word_asm = \ - "push [edi]" \ - "popf" \ - "shld ax,dx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [dx] [cl] \ - value [ax] \ - modify exact [ax dx cl]; +#pragma aux sar_long_asm = \ + "push [edi]" \ + "popf" \ + "sar eax,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [cl] \ + value [eax] \ + modify exact [eax cl]; + +u16 shld_word_asm(u32 *flags,u16 d, u16 fill, u8 s); +#pragma aux shld_word_asm = \ + "push [edi]" \ + "popf" \ + "shld ax,dx,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [dx] [cl] \ + value [ax] \ + modify exact [ax dx cl]; u32 shld_long_asm(u32 *flags,u32 d, u32 fill, u8 s); -#pragma aux shld_long_asm = \ - "push [edi]" \ - "popf" \ - "shld eax,edx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [edx] [cl] \ - value [eax] \ - modify exact [eax edx cl]; - -u16 shrd_word_asm(u32 *flags,u16 d, u16 fill, u8 s); -#pragma aux shrd_word_asm = \ - "push [edi]" \ - "popf" \ - "shrd ax,dx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [dx] [cl] \ - value [ax] \ - modify exact [ax dx cl]; +#pragma aux shld_long_asm = \ + "push [edi]" \ + "popf" \ + "shld eax,edx,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [edx] [cl] \ + value [eax] \ + modify exact [eax edx cl]; + +u16 shrd_word_asm(u32 *flags,u16 d, u16 fill, u8 s); +#pragma aux shrd_word_asm = \ + "push [edi]" \ + "popf" \ + "shrd ax,dx,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [dx] [cl] \ + value [ax] \ + modify exact [ax dx cl]; u32 shrd_long_asm(u32 *flags,u32 d, u32 fill, u8 s); -#pragma aux shrd_long_asm = \ - "push [edi]" \ - "popf" \ - "shrd eax,edx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [edx] [cl] \ - value [eax] \ - modify exact [eax edx cl]; +#pragma aux shrd_long_asm = \ + "push [edi]" \ + "popf" \ + "shrd eax,edx,cl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [edx] [cl] \ + value [eax] \ + modify exact [eax edx cl]; u8 sbb_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux sbb_byte_asm = \ - "push [edi]" \ - "popf" \ - "sbb al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux sbb_byte_asm = \ + "push [edi]" \ + "popf" \ + "sbb al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 sbb_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux sbb_word_asm = \ - "push [edi]" \ - "popf" \ - "sbb ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux sbb_word_asm = \ + "push [edi]" \ + "popf" \ + "sbb ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 sbb_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux sbb_long_asm = \ - "push [edi]" \ - "popf" \ - "sbb eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; +#pragma aux sbb_long_asm = \ + "push [edi]" \ + "popf" \ + "sbb eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; u8 sub_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux sub_byte_asm = \ - "push [edi]" \ - "popf" \ - "sub al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux sub_byte_asm = \ + "push [edi]" \ + "popf" \ + "sub al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 sub_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux sub_word_asm = \ - "push [edi]" \ - "popf" \ - "sub ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux sub_word_asm = \ + "push [edi]" \ + "popf" \ + "sub ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 sub_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux sub_long_asm = \ - "push [edi]" \ - "popf" \ - "sub eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -void test_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux test_byte_asm = \ - "push [edi]" \ - "popf" \ - "test al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - modify exact [al bl]; - -void test_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux test_word_asm = \ - "push [edi]" \ - "popf" \ - "test ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - modify exact [ax bx]; - -void test_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux test_long_asm = \ - "push [edi]" \ - "popf" \ - "test eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - modify exact [eax ebx]; +#pragma aux sub_long_asm = \ + "push [edi]" \ + "popf" \ + "sub eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; + +void test_byte_asm(u32 *flags,u8 d, u8 s); +#pragma aux test_byte_asm = \ + "push [edi]" \ + "popf" \ + "test al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + modify exact [al bl]; + +void test_word_asm(u32 *flags,u16 d, u16 s); +#pragma aux test_word_asm = \ + "push [edi]" \ + "popf" \ + "test ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + modify exact [ax bx]; + +void test_long_asm(u32 *flags,u32 d, u32 s); +#pragma aux test_long_asm = \ + "push [edi]" \ + "popf" \ + "test eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + modify exact [eax ebx]; u8 xor_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux xor_byte_asm = \ - "push [edi]" \ - "popf" \ - "xor al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; +#pragma aux xor_byte_asm = \ + "push [edi]" \ + "popf" \ + "xor al,bl" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [al] [bl] \ + value [al] \ + modify exact [al bl]; u16 xor_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux xor_word_asm = \ - "push [edi]" \ - "popf" \ - "xor ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; +#pragma aux xor_word_asm = \ + "push [edi]" \ + "popf" \ + "xor ax,bx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [ax] [bx] \ + value [ax] \ + modify exact [ax bx]; u32 xor_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux xor_long_asm = \ - "push [edi]" \ - "popf" \ - "xor eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; +#pragma aux xor_long_asm = \ + "push [edi]" \ + "popf" \ + "xor eax,ebx" \ + "pushf" \ + "pop [edi]" \ + parm [edi] [eax] [ebx] \ + value [eax] \ + modify exact [eax ebx]; void imul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s); -#pragma aux imul_byte_asm = \ - "push [edi]" \ - "popf" \ - "imul bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - parm [edi] [esi] [al] [bl] \ - modify exact [esi ax bl]; +#pragma aux imul_byte_asm = \ + "push [edi]" \ + "popf" \ + "imul bl" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],ax" \ + parm [edi] [esi] [al] [bl] \ + modify exact [esi ax bl]; void imul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s); -#pragma aux imul_word_asm = \ - "push [edi]" \ - "popf" \ - "imul bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [bx]\ - modify exact [esi edi ax bx dx]; +#pragma aux imul_word_asm = \ + "push [edi]" \ + "popf" \ + "imul bx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],ax" \ + "mov [ecx],dx" \ + parm [edi] [esi] [ecx] [ax] [bx]\ + modify exact [esi edi ax bx dx]; void imul_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 d,u32 s); -#pragma aux imul_long_asm = \ - "push [edi]" \ - "popf" \ - "imul ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [ebx] \ - modify exact [esi edi eax ebx edx]; +#pragma aux imul_long_asm = \ + "push [edi]" \ + "popf" \ + "imul ebx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],eax" \ + "mov [ecx],edx" \ + parm [edi] [esi] [ecx] [eax] [ebx] \ + modify exact [esi edi eax ebx edx]; void mul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s); -#pragma aux mul_byte_asm = \ - "push [edi]" \ - "popf" \ - "mul bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - parm [edi] [esi] [al] [bl] \ - modify exact [esi ax bl]; +#pragma aux mul_byte_asm = \ + "push [edi]" \ + "popf" \ + "mul bl" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],ax" \ + parm [edi] [esi] [al] [bl] \ + modify exact [esi ax bl]; void mul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s); -#pragma aux mul_word_asm = \ - "push [edi]" \ - "popf" \ - "mul bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [bx]\ - modify exact [esi edi ax bx dx]; +#pragma aux mul_word_asm = \ + "push [edi]" \ + "popf" \ + "mul bx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],ax" \ + "mov [ecx],dx" \ + parm [edi] [esi] [ecx] [ax] [bx]\ + modify exact [esi edi ax bx dx]; void mul_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 d,u32 s); -#pragma aux mul_long_asm = \ - "push [edi]" \ - "popf" \ - "mul ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [ebx] \ - modify exact [esi edi eax ebx edx]; - -void idiv_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s); -#pragma aux idiv_byte_asm = \ - "push [edi]" \ - "popf" \ - "idiv bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],al" \ - "mov [ecx],ah" \ - parm [edi] [esi] [ecx] [ax] [bl]\ - modify exact [esi edi ax bl]; - -void idiv_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s); -#pragma aux idiv_word_asm = \ - "push [edi]" \ - "popf" \ - "idiv bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [dx] [bx]\ - modify exact [esi edi ax dx bx]; - -void idiv_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s); -#pragma aux idiv_long_asm = \ - "push [edi]" \ - "popf" \ - "idiv ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [edx] [ebx]\ - modify exact [esi edi eax edx ebx]; - -void div_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s); -#pragma aux div_byte_asm = \ - "push [edi]" \ - "popf" \ - "div bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],al" \ - "mov [ecx],ah" \ - parm [edi] [esi] [ecx] [ax] [bl]\ - modify exact [esi edi ax bl]; - -void div_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s); -#pragma aux div_word_asm = \ - "push [edi]" \ - "popf" \ - "div bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [dx] [bx]\ - modify exact [esi edi ax dx bx]; - -void div_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s); -#pragma aux div_long_asm = \ - "push [edi]" \ - "popf" \ - "div ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [edx] [ebx]\ - modify exact [esi edi eax edx ebx]; +#pragma aux mul_long_asm = \ + "push [edi]" \ + "popf" \ + "mul ebx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],eax" \ + "mov [ecx],edx" \ + parm [edi] [esi] [ecx] [eax] [ebx] \ + modify exact [esi edi eax ebx edx]; + +void idiv_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s); +#pragma aux idiv_byte_asm = \ + "push [edi]" \ + "popf" \ + "idiv bl" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],al" \ + "mov [ecx],ah" \ + parm [edi] [esi] [ecx] [ax] [bl]\ + modify exact [esi edi ax bl]; + +void idiv_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s); +#pragma aux idiv_word_asm = \ + "push [edi]" \ + "popf" \ + "idiv bx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],ax" \ + "mov [ecx],dx" \ + parm [edi] [esi] [ecx] [ax] [dx] [bx]\ + modify exact [esi edi ax dx bx]; + +void idiv_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s); +#pragma aux idiv_long_asm = \ + "push [edi]" \ + "popf" \ + "idiv ebx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],eax" \ + "mov [ecx],edx" \ + parm [edi] [esi] [ecx] [eax] [edx] [ebx]\ + modify exact [esi edi eax edx ebx]; + +void div_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s); +#pragma aux div_byte_asm = \ + "push [edi]" \ + "popf" \ + "div bl" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],al" \ + "mov [ecx],ah" \ + parm [edi] [esi] [ecx] [ax] [bl]\ + modify exact [esi edi ax bl]; + +void div_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s); +#pragma aux div_word_asm = \ + "push [edi]" \ + "popf" \ + "div bx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],ax" \ + "mov [ecx],dx" \ + parm [edi] [esi] [ecx] [ax] [dx] [bx]\ + modify exact [esi edi ax dx bx]; + +void div_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s); +#pragma aux div_long_asm = \ + "push [edi]" \ + "popf" \ + "div ebx" \ + "pushf" \ + "pop [edi]" \ + "mov [esi],eax" \ + "mov [ecx],edx" \ + parm [edi] [esi] [ecx] [eax] [edx] [ebx]\ + modify exact [esi edi eax edx ebx]; + +#else + +static inline u32 get_flags_asm(void) +{ + u32 ret; + + asm ( "pushf\n\t" + "pop %%eax" + : "=a"(ret) + ); + return ret; +} + +static inline u16 aaa_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "aaa\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u16 aas_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "aas\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u16 aad_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "aad\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u16 aam_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "aam\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u8 adc_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "adcb %%bl, %%al\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u16 adc_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "adcw %%bx, %%ax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u32 adc_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "adcl %%ebx, %%eax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u8 add_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "addb %%bl, %%al\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u16 add_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "addw %%bx, %%ax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u32 add_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "addl %%ebx, %%eax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + + + +static inline u8 and_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "andb %%bl, %%al\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u16 and_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "andw %%bx, %%ax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u32 and_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "andl %%ebx, %%eax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + + +static inline u8 cmp_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "cmpb %%bl, %%al\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u16 cmp_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "cmpw %%bx, %%ax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u32 cmp_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "cmpl %%ebx, %%eax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + + +static inline u8 daa_byte_asm(u32 *flags, u8 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "daa\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u8 das_byte_asm(u32 *flags, u8 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "das\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + + + +static inline u8 dec_byte_asm(u32 *flags, u8 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "dec %%al\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u16 dec_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "dec %%ax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u32 dec_long_asm(u32 *flags, u32 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "dec %%eax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + + +static inline u8 inc_byte_asm(u32 *flags, u8 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "inc %%al\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u16 inc_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "inc %%ax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u32 inc_long_asm(u32 *flags, u32 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "inc %%eax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u8 or_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "orb %%bl, %%al\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u16 or_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "orw %%bx, %%ax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + +static inline u32 or_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" + "popf\n\t" + "orl %%ebx, %%eax\n\t" + "pushf\n\t" + "popl (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d), "b"(s) + ); + return d; +} + + +static inline u8 neg_byte_asm(u32 *flags, u8 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "neg %%al\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u16 neg_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "neg %%ax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u32 neg_long_asm(u32 *flags, u32 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "neg %%eax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u8 not_byte_asm(u32 *flags, u8 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "not %%al\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u16 not_word_asm(u32 *flags, u16 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "not %%ax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + +static inline u32 not_long_asm(u32 *flags, u32 d) +{ + asm ( + "push (%%edi)\n\t" + "popf\n\t" + "not %%eax\n\t" + "pushf\n\t" + "pop (%%edi)" + : "=D"(flags), "=a"(d) + : "0"(flags), "1"(d) + ); + return d; +} + + +static inline u8 rcl_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rclb %%cl,%%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u16 rcl_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rclw %%cl,%%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u32 rcl_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rcll %%cl,%%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + + +static inline u8 rcr_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rcrb %%cl,%%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u16 rcr_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rcrw %%cl,%%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u32 rcr_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rcrl %%cl,%%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + + +static inline u8 rol_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rolb %%cl,%%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u16 rol_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rolw %%cl,%%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u32 rol_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "roll %%cl,%%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + + +static inline u8 ror_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rorb %%cl,%%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u16 ror_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rorw %%cl,%%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u32 ror_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "rorl %%cl,%%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + + +static inline u8 shl_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shlb %%cl,%%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u16 shl_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shlw %%cl,%%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u32 shl_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shll %%cl,%%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + + +static inline u8 shr_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shrb %%cl,%%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u16 shr_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shrw %%cl,%%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u32 shr_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shrl %%cl,%%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + + +static inline u8 sar_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "sarb %%cl,%%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u16 sar_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "sarw %%cl,%%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + +static inline u32 sar_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "sarl %%cl,%%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "c"(s) ); + return d; +} + + +static inline u16 shld_word_asm(u32 *flags, u16 data, u16 fill, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shld %%cl, %%dx, %%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(data) : "0"(flags), "1"(data), "d"(fill), "c"(s) ); + return data; +} + +static inline u32 shld_long_asm(u32 *flags, u32 data, u32 fill, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shldl %%cl, %%edx, %%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(data) : "0"(flags), "1"(data), "d"(fill), "c"(s) ); + return data; +} + +static inline u16 shrd_word_asm(u32 *flags, u16 data, u16 fill, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shrd %%cl, %%dx, %%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(data) : "0"(flags), "1"(data), "d"(fill), "c"(s) ); + return data; +} + +static inline u32 shrd_long_asm(u32 *flags, u32 data, u32 fill, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "shrdl %%cl, %%edx, %%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(data) : "0"(flags), "1"(data), "d"(fill), "c"(s) ); + return data; +} + + +static inline u8 sbb_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "sbbb %%bl, %%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + +static inline u16 sbb_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "sbbw %%bx, %%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + +static inline u32 sbb_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "sbbl %%ebx, %%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + + + +static inline u8 sub_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "subb %%bl, %%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + +static inline u16 sub_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "subw %%bx, %%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + +static inline u32 sub_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "subl %%ebx, %%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + + +static inline u8 xor_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "xorb %%bl, %%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + +static inline u16 xor_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "xorw %%bx, %%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + +static inline u32 xor_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "xorl %%ebx, %%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(d) : "0"(flags), "1"(d), "b"(s) ); + return d; +} + + +static inline void test_byte_asm(u32 *flags, u8 d, u8 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "testb %%bl, %%al\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags) : "0"(flags), "a"(d), "b"(s) ); +} + +static inline void test_word_asm(u32 *flags, u16 d, u16 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "testw %%bx, %%ax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags) : "0"(flags), "a"(d), "b"(s) ); +} + +static inline void test_long_asm(u32 *flags, u32 d, u32 s) +{ + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "testl %%ebx, %%eax\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags) : "0"(flags), "a"(d), "b"(s) ); +} + + +static inline void imul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s) +{ + u16 ret; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "imul %%bl\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret) : "0"(flags), "a"(d), "b"(s) ); + *ax = ret; +} + +static inline void imul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s) +{ + u16 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "imulw %%bx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(d), "b"(s) ); + *ax = ret_ax; + *dx = ret_dx; +} + +static inline void imul_long_asm(u32 *flags,u32 *ax,u32 *dx,u32 d,u32 s) +{ + u32 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "imull %%ebx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(d), "b"(s) ); + *ax = ret_ax; + *dx = ret_dx; +} + + +static inline void mul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s) +{ + u16 ret; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "mul %%bl\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret) : "0"(flags), "a"(d), "b"(s) ); + *ax = ret; +} + +static inline void mul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s) +{ + u16 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "mulw %%bx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(d), "b"(s) ); + *ax = ret_ax; + *dx = ret_dx; +} + +static inline void mul_long_asm(u32 *flags,u32 *ax,u32 *dx,u32 d,u32 s) +{ + u32 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "mull %%ebx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(d), "b"(s) ); + *ax = ret_ax; + *dx = ret_dx; +} + + +static inline void idiv_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s) +{ + u16 ret_ax; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "idiv %%bl\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax) : "0"(flags), "a"(d), "b"(s) ); + *al = ret_ax & 0xff; + *ah = (ret_ax >> 8) & 0xff; +} + +static inline void idiv_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s) +{ + u16 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "idiv %%bx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(dlo), "d"(dhi), "b"(s) ); + *ax = ret_ax; + *dx = ret_dx; +} + +static inline void idiv_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s) +{ + u32 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "idiv %%ebx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(dlo), "d"(dhi), "b"(s) ); + *eax = ret_ax; + *edx = ret_dx; +} + + +static inline void div_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s) +{ + u16 ret_ax; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "div %%bl\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax) : "0"(flags), "a"(d), "b"(s) ); + *al = ret_ax & 0xff; + *ah = (ret_ax >> 8) & 0xff; +} + +static inline void div_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s) +{ + u16 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "div %%bx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(dlo), "d"(dhi), "b"(s) ); + *ax = ret_ax; + *dx = ret_dx; +} + +static inline void div_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s) +{ + u32 ret_ax, ret_dx; + + __asm__ __volatile__( + "pushl (%%edi)\n\t" "popf\n\t" + "div %%ebx\n\t" + "pushf\n\t" "popl (%%edi)" + : "=D"(flags), "=a"(ret_ax), "=d"(ret_dx) : "0"(flags), "a"(dlo), "d"(dhi), "b"(s) ); + *eax = ret_ax; + *edx = ret_dx; +} #endif diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/prim_ops.h b/util/vgabios/x86emu/src/x86emu/x86emu/prim_ops.h index 1633fe1fae..0ea825d3c1 100755 --- a/util/vgabios/x86emu/src/x86emu/x86emu/prim_ops.h +++ b/util/vgabios/x86emu/src/x86emu/x86emu/prim_ops.h @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,8 +28,8 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: Header file for primitive operation functions. @@ -39,10 +39,8 @@ #ifndef __X86EMU_PRIM_OPS_H #define __X86EMU_PRIM_OPS_H -#include "x86emu/prim_asm.h" - #ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ +extern "C" { /* Use "C" linkage when in C++ mode */ #endif u16 aaa_word (u16 d); @@ -118,7 +116,7 @@ u32 xor_long (u32 d, u32 s); void imul_byte (u8 s); void imul_word (u16 s); void imul_long (u32 s); -void imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s); +void imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s); void mul_byte (u8 s); void mul_word (u16 s); void mul_long (u32 s); @@ -134,98 +132,11 @@ u16 mem_access_word (int addr); void push_word (u16 w); void push_long (u32 w); u16 pop_word (void); -u32 pop_long (void); - -#if defined(__HAVE_INLINE_ASSEMBLER__) && !defined(PRIM_OPS_NO_REDEFINE_ASM) - -#define aaa_word(d) aaa_word_asm(&M.x86.R_EFLG,d) -#define aas_word(d) aas_word_asm(&M.x86.R_EFLG,d) -#define aad_word(d) aad_word_asm(&M.x86.R_EFLG,d) -#define aam_word(d) aam_word_asm(&M.x86.R_EFLG,d) -#define adc_byte(d,s) adc_byte_asm(&M.x86.R_EFLG,d,s) -#define adc_word(d,s) adc_word_asm(&M.x86.R_EFLG,d,s) -#define adc_long(d,s) adc_long_asm(&M.x86.R_EFLG,d,s) -#define add_byte(d,s) add_byte_asm(&M.x86.R_EFLG,d,s) -#define add_word(d,s) add_word_asm(&M.x86.R_EFLG,d,s) -#define add_long(d,s) add_long_asm(&M.x86.R_EFLG,d,s) -#define and_byte(d,s) and_byte_asm(&M.x86.R_EFLG,d,s) -#define and_word(d,s) and_word_asm(&M.x86.R_EFLG,d,s) -#define and_long(d,s) and_long_asm(&M.x86.R_EFLG,d,s) -#define cmp_byte(d,s) cmp_byte_asm(&M.x86.R_EFLG,d,s) -#define cmp_word(d,s) cmp_word_asm(&M.x86.R_EFLG,d,s) -#define cmp_long(d,s) cmp_long_asm(&M.x86.R_EFLG,d,s) -#define daa_byte(d) daa_byte_asm(&M.x86.R_EFLG,d) -#define das_byte(d) das_byte_asm(&M.x86.R_EFLG,d) -#define dec_byte(d) dec_byte_asm(&M.x86.R_EFLG,d) -#define dec_word(d) dec_word_asm(&M.x86.R_EFLG,d) -#define dec_long(d) dec_long_asm(&M.x86.R_EFLG,d) -#define inc_byte(d) inc_byte_asm(&M.x86.R_EFLG,d) -#define inc_word(d) inc_word_asm(&M.x86.R_EFLG,d) -#define inc_long(d) inc_long_asm(&M.x86.R_EFLG,d) -#define or_byte(d,s) or_byte_asm(&M.x86.R_EFLG,d,s) -#define or_word(d,s) or_word_asm(&M.x86.R_EFLG,d,s) -#define or_long(d,s) or_long_asm(&M.x86.R_EFLG,d,s) -#define neg_byte(s) neg_byte_asm(&M.x86.R_EFLG,s) -#define neg_word(s) neg_word_asm(&M.x86.R_EFLG,s) -#define neg_long(s) neg_long_asm(&M.x86.R_EFLG,s) -#define not_byte(s) not_byte_asm(&M.x86.R_EFLG,s) -#define not_word(s) not_word_asm(&M.x86.R_EFLG,s) -#define not_long(s) not_long_asm(&M.x86.R_EFLG,s) -#define rcl_byte(d,s) rcl_byte_asm(&M.x86.R_EFLG,d,s) -#define rcl_word(d,s) rcl_word_asm(&M.x86.R_EFLG,d,s) -#define rcl_long(d,s) rcl_long_asm(&M.x86.R_EFLG,d,s) -#define rcr_byte(d,s) rcr_byte_asm(&M.x86.R_EFLG,d,s) -#define rcr_word(d,s) rcr_word_asm(&M.x86.R_EFLG,d,s) -#define rcr_long(d,s) rcr_long_asm(&M.x86.R_EFLG,d,s) -#define rol_byte(d,s) rol_byte_asm(&M.x86.R_EFLG,d,s) -#define rol_word(d,s) rol_word_asm(&M.x86.R_EFLG,d,s) -#define rol_long(d,s) rol_long_asm(&M.x86.R_EFLG,d,s) -#define ror_byte(d,s) ror_byte_asm(&M.x86.R_EFLG,d,s) -#define ror_word(d,s) ror_word_asm(&M.x86.R_EFLG,d,s) -#define ror_long(d,s) ror_long_asm(&M.x86.R_EFLG,d,s) -#define shl_byte(d,s) shl_byte_asm(&M.x86.R_EFLG,d,s) -#define shl_word(d,s) shl_word_asm(&M.x86.R_EFLG,d,s) -#define shl_long(d,s) shl_long_asm(&M.x86.R_EFLG,d,s) -#define shr_byte(d,s) shr_byte_asm(&M.x86.R_EFLG,d,s) -#define shr_word(d,s) shr_word_asm(&M.x86.R_EFLG,d,s) -#define shr_long(d,s) shr_long_asm(&M.x86.R_EFLG,d,s) -#define sar_byte(d,s) sar_byte_asm(&M.x86.R_EFLG,d,s) -#define sar_word(d,s) sar_word_asm(&M.x86.R_EFLG,d,s) -#define sar_long(d,s) sar_long_asm(&M.x86.R_EFLG,d,s) -#define shld_word(d,fill,s) shld_word_asm(&M.x86.R_EFLG,d,fill,s) -#define shld_long(d,fill,s) shld_long_asm(&M.x86.R_EFLG,d,fill,s) -#define shrd_word(d,fill,s) shrd_word_asm(&M.x86.R_EFLG,d,fill,s) -#define shrd_long(d,fill,s) shrd_long_asm(&M.x86.R_EFLG,d,fill,s) -#define sbb_byte(d,s) sbb_byte_asm(&M.x86.R_EFLG,d,s) -#define sbb_word(d,s) sbb_word_asm(&M.x86.R_EFLG,d,s) -#define sbb_long(d,s) sbb_long_asm(&M.x86.R_EFLG,d,s) -#define sub_byte(d,s) sub_byte_asm(&M.x86.R_EFLG,d,s) -#define sub_word(d,s) sub_word_asm(&M.x86.R_EFLG,d,s) -#define sub_long(d,s) sub_long_asm(&M.x86.R_EFLG,d,s) -#define test_byte(d,s) test_byte_asm(&M.x86.R_EFLG,d,s) -#define test_word(d,s) test_word_asm(&M.x86.R_EFLG,d,s) -#define test_long(d,s) test_long_asm(&M.x86.R_EFLG,d,s) -#define xor_byte(d,s) xor_byte_asm(&M.x86.R_EFLG,d,s) -#define xor_word(d,s) xor_word_asm(&M.x86.R_EFLG,d,s) -#define xor_long(d,s) xor_long_asm(&M.x86.R_EFLG,d,s) -#define imul_byte(s) imul_byte_asm(&M.x86.R_EFLG,&M.x86.R_AX,M.x86.R_AL,s) -#define imul_word(s) imul_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,s) -#define imul_long(s) imul_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,s) -#define imul_long_direct(res_lo,res_hi,d,s) imul_long_asm(&M.x86.R_EFLG,res_lo,res_hi,d,s) -#define mul_byte(s) mul_byte_asm(&M.x86.R_EFLG,&M.x86.R_AX,M.x86.R_AL,s) -#define mul_word(s) mul_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,s) -#define mul_long(s) mul_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,s) -#define idiv_byte(s) idiv_byte_asm(&M.x86.R_EFLG,&M.x86.R_AL,&M.x86.R_AH,M.x86.R_AX,s) -#define idiv_word(s) idiv_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,M.x86.R_DX,s) -#define idiv_long(s) idiv_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,M.x86.R_EDX,s) -#define div_byte(s) div_byte_asm(&M.x86.R_EFLG,&M.x86.R_AL,&M.x86.R_AH,M.x86.R_AX,s) -#define div_word(s) div_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,M.x86.R_DX,s) -#define div_long(s) div_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,M.x86.R_EDX,s) - -#endif +u32 pop_long (void); #ifdef __cplusplus -} /* End of "C" linkage for C++ */ +} /* End of "C" linkage for C++ */ #endif #endif /* __X86EMU_PRIM_OPS_H */ + diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/x86emui.h b/util/vgabios/x86emu/src/x86emu/x86emu/x86emui.h index 9cdb0a1b3b..1cc3c08a5e 100755 --- a/util/vgabios/x86emu/src/x86emu/x86emu/x86emui.h +++ b/util/vgabios/x86emu/src/x86emu/x86emu/x86emui.h @@ -1,10 +1,10 @@ /**************************************************************************** * -* Realmode X86 Emulator Library +* Realmode X86 Emulator Library * -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich +* Copyright (C) 1991-2004 SciTech Software, Inc. +* Copyright (C) David Mosberger-Tang +* Copyright (C) 1999 Egbert Eich * * ======================================================================== * @@ -28,18 +28,16 @@ * * ======================================================================== * -* Language: ANSI C -* Environment: Any +* Language: ANSI C +* Environment: Any * Developer: Kendall Bennett * * Description: Header file for system specific functions. These functions -* are always compiled and linked in the OS depedent libraries, -* and never in a binary portable driver. +* are always compiled and linked in the OS depedent libraries, +* and never in a binary portable driver. * ****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/x86emu/x86emui.h,v 1.4 2001/04/01 13:59:58 tsi Exp $ */ - #ifndef __X86EMU_X86EMUI_H #define __X86EMU_X86EMUI_H @@ -48,18 +46,18 @@ * dramatically in this case). */ -#if defined(__cplusplus) && !defined(_NO_INLINE) -#define _INLINE inline +#if defined(__cplusplus) && !defined(_NO_INLINE) +#define _INLINE inline #else -#define _INLINE static +#define _INLINE static #endif /* Get rid of unused parameters in C++ compilation mode */ #ifdef __cplusplus -#define X86EMU_UNUSED(v) +#define X86EMU_UNUSED(v) #else -#define X86EMU_UNUSED(v) v +#define X86EMU_UNUSED(v) v #endif #include "x86emu.h" @@ -70,36 +68,34 @@ #include "x86emu/prim_ops.h" #include "x86emu/fpu.h" #include "x86emu/fpu_regs.h" - -#ifdef IN_MODULE -#include <xf86_ansic.h> -#else +#ifndef __KERNEL__ #include <stdio.h> #include <stdlib.h> #include <string.h> -#endif +#endif + /*--------------------------- Inline Functions ----------------------------*/ #ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ +extern "C" { /* Use "C" linkage when in C++ mode */ #endif -extern u8 (X86APIP sys_rdb)(u32 addr); -extern u16 (X86APIP sys_rdw)(u32 addr); -extern u32 (X86APIP sys_rdl)(u32 addr); +extern u8 (X86APIP sys_rdb)(u32 addr); +extern u16 (X86APIP sys_rdw)(u32 addr); +extern u32 (X86APIP sys_rdl)(u32 addr); extern void (X86APIP sys_wrb)(u32 addr,u8 val); extern void (X86APIP sys_wrw)(u32 addr,u16 val); extern void (X86APIP sys_wrl)(u32 addr,u32 val); -extern u8 (X86APIP sys_inb)(X86EMU_pioAddr addr); -extern u16 (X86APIP sys_inw)(X86EMU_pioAddr addr); -extern u32 (X86APIP sys_inl)(X86EMU_pioAddr addr); +extern u8 (X86APIP sys_inb)(X86EMU_pioAddr addr); +extern u16 (X86APIP sys_inw)(X86EMU_pioAddr addr); +extern u32 (X86APIP sys_inl)(X86EMU_pioAddr addr); extern void (X86APIP sys_outb)(X86EMU_pioAddr addr,u8 val); extern void (X86APIP sys_outw)(X86EMU_pioAddr addr,u16 val); -extern void (X86APIP sys_outl)(X86EMU_pioAddr addr,u32 val); +extern void (X86APIP sys_outl)(X86EMU_pioAddr addr,u32 val); #ifdef __cplusplus -} /* End of "C" linkage for C++ */ +} /* End of "C" linkage for C++ */ #endif #endif /* __X86EMU_X86EMUI_H */ |