diff options
Diffstat (limited to 'util/x86emu')
46 files changed, 0 insertions, 20837 deletions
diff --git a/util/x86emu/Makefile.inc b/util/x86emu/Makefile.inc deleted file mode 100644 index 3d5f1a6ff5..0000000000 --- a/util/x86emu/Makefile.inc +++ /dev/null @@ -1,25 +0,0 @@ -## -## This file is part of the coreboot project. -## -## Copyright (C) 2007-2010 coresystems GmbH -## -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; version 2 of the License. -## -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. -## -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -## - -obj-$(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) += x86.o -obj-$(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) += x86_asm.o -obj-$(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) += x86_interrupts.o - -subdirs-$(CONFIG_PCI_OPTION_ROM_RUN_YABEL) += x86emu -subdirs-$(CONFIG_PCI_OPTION_ROM_RUN_YABEL) += yabel diff --git a/util/x86emu/include/x86emu/fpu_regs.h b/util/x86emu/include/x86emu/fpu_regs.h deleted file mode 100644 index 7c7df8562b..0000000000 --- a/util/x86emu/include/x86emu/fpu_regs.h +++ /dev/null @@ -1,115 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for FPU register definitions. -* -****************************************************************************/ - -#ifndef __X86EMU_FPU_REGS_H -#define __X86EMU_FPU_REGS_H - -#ifdef X86_FPU_SUPPORT - -#pragma pack(1) - -/* Basic 8087 register can hold any of the following values: */ - -union x86_fpu_reg_u { - s8 tenbytes[10]; - double dval; - float fval; - s16 sval; - s32 lval; - }; - -struct x86_fpu_reg { - union x86_fpu_reg_u reg; - char tag; - }; - -/* - * Since we are not going to worry about the problems of aliasing - * registers, every time a register is modified, its result type is - * set in the tag fields for that register. If some operation - * attempts to access the type in a way inconsistent with its current - * storage format, then we flag the operation. If common, we'll - * attempt the conversion. - */ - -#define X86_FPU_VALID 0x80 -#define X86_FPU_REGTYP(r) ((r) & 0x7F) - -#define X86_FPU_WORD 0x0 -#define X86_FPU_SHORT 0x1 -#define X86_FPU_LONG 0x2 -#define X86_FPU_FLOAT 0x3 -#define X86_FPU_DOUBLE 0x4 -#define X86_FPU_LDBL 0x5 -#define X86_FPU_BSD 0x6 - -#define X86_FPU_STKTOP 0 - -struct x86_fpu_registers { - struct x86_fpu_reg x86_fpu_stack[8]; - int x86_fpu_flags; - int x86_fpu_config; /* rounding modes, etc. */ - short x86_fpu_tos, x86_fpu_bos; - }; - -#pragma pack() - -/* - * There are two versions of the following macro. - * - * One version is for opcode D9, for which there are more than 32 - * instructions encoded in the second byte of the opcode. - * - * The other version, deals with all the other 7 i87 opcodes, for - * which there are only 32 strings needed to describe the - * instructions. - */ - -#endif /* X86_FPU_SUPPORT */ - -#if CONFIG_X86EMU_DEBUG -# define DECODE_PRINTINSTR32(t,mod,rh,rl) \ - DECODE_PRINTF(t[(mod<<3)+(rh)]); -# define DECODE_PRINTINSTR256(t,mod,rh,rl) \ - DECODE_PRINTF(t[(mod<<6)+(rh<<3)+(rl)]); -#else -# define DECODE_PRINTINSTR32(t,mod,rh,rl) -# define DECODE_PRINTINSTR256(t,mod,rh,rl) -#endif - -#endif /* __X86EMU_FPU_REGS_H */ diff --git a/util/x86emu/include/x86emu/regs.h b/util/x86emu/include/x86emu/regs.h deleted file mode 100644 index 516b2ea836..0000000000 --- a/util/x86emu/include/x86emu/regs.h +++ /dev/null @@ -1,372 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for x86 register definitions. -* -****************************************************************************/ -/* $XFree86: xc/extras/x86emu/include/x86emu/regs.h,v 1.3 2001/10/28 03:32:25 tsi Exp $ */ - -#ifndef __X86EMU_REGS_H -#define __X86EMU_REGS_H - -/*---------------------- Macros and type definitions ----------------------*/ - -#pragma pack(1) - -/* - * General EAX, EBX, ECX, EDX type registers. Note that for - * portability, and speed, the issue of byte swapping is not addressed - * in the registers. All registers are stored in the default format - * available on the host machine. The only critical issue is that the - * registers should line up EXACTLY in the same manner as they do in - * the 386. That is: - * - * EAX & 0xff === AL - * EAX & 0xffff == AX - * - * etc. The result is that alot of the calculations can then be - * done using the native instruction set fully. - */ - -#ifdef __BIG_ENDIAN__ - -typedef struct { - u32 e_reg; - } I32_reg_t; - -typedef struct { - u16 filler0, x_reg; - } I16_reg_t; - -typedef struct { - u8 filler0, filler1, h_reg, l_reg; - } I8_reg_t; - -#else /* !__BIG_ENDIAN__ */ - -typedef struct { - u32 e_reg; - } I32_reg_t; - -typedef struct { - u16 x_reg; - } I16_reg_t; - -typedef struct { - u8 l_reg, h_reg; - } I8_reg_t; - -#endif /* BIG_ENDIAN */ - -typedef union { - I32_reg_t I32_reg; - I16_reg_t I16_reg; - I8_reg_t I8_reg; - } i386_general_register; - -struct i386_general_regs { - i386_general_register A, B, C, D; - }; - -typedef struct i386_general_regs Gen_reg_t; - -struct i386_special_regs { - i386_general_register SP, BP, SI, DI, IP; - u32 FLAGS; - }; - -/* - * Segment registers here represent the 16 bit quantities - * CS, DS, ES, SS. - */ - -struct i386_segment_regs { - u16 CS, DS, SS, ES, FS, GS; - }; - -/* 8 bit registers */ -#define R_AH gen.A.I8_reg.h_reg -#define R_AL gen.A.I8_reg.l_reg -#define R_BH gen.B.I8_reg.h_reg -#define R_BL gen.B.I8_reg.l_reg -#define R_CH gen.C.I8_reg.h_reg -#define R_CL gen.C.I8_reg.l_reg -#define R_DH gen.D.I8_reg.h_reg -#define R_DL gen.D.I8_reg.l_reg - -/* 16 bit registers */ -#define R_AX gen.A.I16_reg.x_reg -#define R_BX gen.B.I16_reg.x_reg -#define R_CX gen.C.I16_reg.x_reg -#define R_DX gen.D.I16_reg.x_reg - -/* 32 bit extended registers */ -#define R_EAX gen.A.I32_reg.e_reg -#define R_EBX gen.B.I32_reg.e_reg -#define R_ECX gen.C.I32_reg.e_reg -#define R_EDX gen.D.I32_reg.e_reg - -/* special registers */ -#define R_SP spc.SP.I16_reg.x_reg -#define R_BP spc.BP.I16_reg.x_reg -#define R_SI spc.SI.I16_reg.x_reg -#define R_DI spc.DI.I16_reg.x_reg -#define R_IP spc.IP.I16_reg.x_reg -#define R_FLG spc.FLAGS - -/* special registers */ -#define R_SP spc.SP.I16_reg.x_reg -#define R_BP spc.BP.I16_reg.x_reg -#define R_SI spc.SI.I16_reg.x_reg -#define R_DI spc.DI.I16_reg.x_reg -#define R_IP spc.IP.I16_reg.x_reg -#define R_FLG spc.FLAGS - -/* special registers */ -#define R_ESP spc.SP.I32_reg.e_reg -#define R_EBP spc.BP.I32_reg.e_reg -#define R_ESI spc.SI.I32_reg.e_reg -#define R_EDI spc.DI.I32_reg.e_reg -#define R_EIP spc.IP.I32_reg.e_reg -#define R_EFLG spc.FLAGS - -/* segment registers */ -#define R_CS seg.CS -#define R_DS seg.DS -#define R_SS seg.SS -#define R_ES seg.ES -#define R_FS seg.FS -#define R_GS seg.GS - -/* flag conditions */ -#define FB_CF 0x0001 /* CARRY flag */ -#define FB_PF 0x0004 /* PARITY flag */ -#define FB_AF 0x0010 /* AUX flag */ -#define FB_ZF 0x0040 /* ZERO flag */ -#define FB_SF 0x0080 /* SIGN flag */ -#define FB_TF 0x0100 /* TRAP flag */ -#define FB_IF 0x0200 /* INTERRUPT ENABLE flag */ -#define FB_DF 0x0400 /* DIR flag */ -#define FB_OF 0x0800 /* OVERFLOW flag */ - -/* 80286 and above always have bit#1 set */ -#define F_ALWAYS_ON (0x0002) /* flag bits always on */ - -/* - * Define a mask for only those flag bits we will ever pass back - * (via PUSHF) - */ -#define F_MSK (FB_CF|FB_PF|FB_AF|FB_ZF|FB_SF|FB_TF|FB_IF|FB_DF|FB_OF) - -/* following bits masked in to a 16bit quantity */ - -#define F_CF 0x0001 /* CARRY flag */ -#define F_PF 0x0004 /* PARITY flag */ -#define F_AF 0x0010 /* AUX flag */ -#define F_ZF 0x0040 /* ZERO flag */ -#define F_SF 0x0080 /* SIGN flag */ -#define F_TF 0x0100 /* TRAP flag */ -#define F_IF 0x0200 /* INTERRUPT ENABLE flag */ -#define F_DF 0x0400 /* DIR flag */ -#define F_OF 0x0800 /* OVERFLOW flag */ - -#define TOGGLE_FLAG(flag) (M.x86.R_FLG ^= (flag)) -#define SET_FLAG(flag) (M.x86.R_FLG |= (flag)) -#define CLEAR_FLAG(flag) (M.x86.R_FLG &= ~(flag)) -#define ACCESS_FLAG(flag) (M.x86.R_FLG & (flag)) -#define CLEARALL_FLAG(m) (M.x86.R_FLG = 0) - -#define CONDITIONAL_SET_FLAG(COND,FLAG) \ - if (COND) SET_FLAG(FLAG); else CLEAR_FLAG(FLAG) - -#define F_PF_CALC 0x010000 /* PARITY flag has been calced */ -#define F_ZF_CALC 0x020000 /* ZERO flag has been calced */ -#define F_SF_CALC 0x040000 /* SIGN flag has been calced */ - -#define F_ALL_CALC 0xff0000 /* All have been calced */ - -/* - * Emulator machine state. - * Segment usage control. - */ -#define SYSMODE_SEG_DS_SS 0x00000001 -#define SYSMODE_SEGOVR_CS 0x00000002 -#define SYSMODE_SEGOVR_DS 0x00000004 -#define SYSMODE_SEGOVR_ES 0x00000008 -#define SYSMODE_SEGOVR_FS 0x00000010 -#define SYSMODE_SEGOVR_GS 0x00000020 -#define SYSMODE_SEGOVR_SS 0x00000040 -#define SYSMODE_PREFIX_REPE 0x00000080 -#define SYSMODE_PREFIX_REPNE 0x00000100 -#define SYSMODE_PREFIX_DATA 0x00000200 -#define SYSMODE_PREFIX_ADDR 0x00000400 -//phueper: for REP(E|NE) Instructions, we need to decide wether it should be using -//the 32bit ECX register as or the 16bit CX register as count register -#define SYSMODE_32BIT_REP 0x00000800 -#define SYSMODE_INTR_PENDING 0x10000000 -#define SYSMODE_EXTRN_INTR 0x20000000 -#define SYSMODE_HALTED 0x40000000 - -#define SYSMODE_SEGMASK (SYSMODE_SEG_DS_SS | \ - SYSMODE_SEGOVR_CS | \ - SYSMODE_SEGOVR_DS | \ - SYSMODE_SEGOVR_ES | \ - SYSMODE_SEGOVR_FS | \ - SYSMODE_SEGOVR_GS | \ - SYSMODE_SEGOVR_SS) -#define SYSMODE_CLRMASK (SYSMODE_SEG_DS_SS | \ - SYSMODE_SEGOVR_CS | \ - SYSMODE_SEGOVR_DS | \ - SYSMODE_SEGOVR_ES | \ - SYSMODE_SEGOVR_FS | \ - SYSMODE_SEGOVR_GS | \ - SYSMODE_SEGOVR_SS | \ - SYSMODE_PREFIX_DATA | \ - SYSMODE_PREFIX_ADDR | \ - SYSMODE_32BIT_REP) - -#define INTR_SYNCH 0x1 -#define INTR_ASYNCH 0x2 -#define INTR_HALTED 0x4 - -typedef struct { - struct i386_general_regs gen; - struct i386_special_regs spc; - struct i386_segment_regs seg; - /* - * MODE contains information on: - * REPE prefix 2 bits repe,repne - * SEGMENT overrides 5 bits normal,DS,SS,CS,ES - * Delayed flag set 3 bits (zero, signed, parity) - * reserved 6 bits - * interrupt # 8 bits instruction raised interrupt - * BIOS video segregs 4 bits - * Interrupt Pending 1 bits - * Extern interrupt 1 bits - * Halted 1 bits - */ - u32 mode; - volatile int intr; /* mask of pending interrupts */ - volatile int debug; -#if CONFIG_X86EMU_DEBUG - int check; - u16 saved_ip; - u16 saved_cs; - int enc_pos; - int enc_str_pos; - char decode_buf[32]; /* encoded byte stream */ - char decoded_buf[256]; /* disassembled strings */ -#endif - u8 intno; - u8 __pad[3]; - } X86EMU_regs; - -/**************************************************************************** -REMARKS: -Structure maintaining the emulator machine state. - -MEMBERS: -mem_base - Base real mode memory for the emulator -abseg - Base for the absegment -mem_size - Size of the real mode memory block for the emulator -private - private data pointer -x86 - X86 registers -****************************************************************************/ -typedef struct { - unsigned long mem_base; - unsigned long mem_size; - unsigned long abseg; - void* private; - X86EMU_regs x86; - } X86EMU_sysEnv; - -#pragma pack() - -/*----------------------------- Global Variables --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -/* Global emulator machine state. - * - * We keep it global to avoid pointer dereferences in the code for speed. - */ - -extern X86EMU_sysEnv _X86EMU_env; -#define M _X86EMU_env - -#define X86_EAX M.x86.R_EAX -#define X86_EBX M.x86.R_EBX -#define X86_ECX M.x86.R_ECX -#define X86_EDX M.x86.R_EDX -#define X86_ESI M.x86.R_ESI -#define X86_EDI M.x86.R_EDI -#define X86_EBP M.x86.R_EBP -#define X86_EIP M.x86.R_EIP -#define X86_ESP M.x86.R_ESP -#define X86_EFLAGS M.x86.R_EFLG - -#define X86_FLAGS M.x86.R_FLG -#define X86_AX M.x86.R_AX -#define X86_BX M.x86.R_BX -#define X86_CX M.x86.R_CX -#define X86_DX M.x86.R_DX -#define X86_SI M.x86.R_SI -#define X86_DI M.x86.R_DI -#define X86_BP M.x86.R_BP -#define X86_IP M.x86.R_IP -#define X86_SP M.x86.R_SP -#define X86_CS M.x86.R_CS -#define X86_DS M.x86.R_DS -#define X86_ES M.x86.R_ES -#define X86_SS M.x86.R_SS -#define X86_FS M.x86.R_FS -#define X86_GS M.x86.R_GS - -#define X86_AL M.x86.R_AL -#define X86_BL M.x86.R_BL -#define X86_CL M.x86.R_CL -#define X86_DL M.x86.R_DL - -#define X86_AH M.x86.R_AH -#define X86_BH M.x86.R_BH -#define X86_CH M.x86.R_CH -#define X86_DH M.x86.R_DH - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_REGS_H */ diff --git a/util/x86emu/include/x86emu/types.h b/util/x86emu/include/x86emu/types.h deleted file mode 100644 index 5485eeaedf..0000000000 --- a/util/x86emu/include/x86emu/types.h +++ /dev/null @@ -1,89 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for x86 emulator type definitions. -* -****************************************************************************/ - -/* $XFree86: xc/extras/x86emu/include/x86emu/types.h,v 1.4 2000/09/26 15:56:44 tsi Exp $ */ - -#ifndef __X86EMU_TYPES_H -#define __X86EMU_TYPES_H - -//#ifndef IN_MODULE -//#include <sys/types.h> -//#endif - -/* - * The following kludge is an attempt to work around typedef conflicts with - * <sys/types.h>. - */ -#define u8 x86emuu8 -#define u16 x86emuu16 -#define u32 x86emuu32 -#define u64 x86emuu64 -#define s8 x86emus8 -#define s16 x86emus16 -#define s32 x86emus32 -#define s64 x86emus64 -#define uint x86emuuint -#define sint x86emusint - -/*---------------------- Macros and type definitions ----------------------*/ - -/* Currently only for Linux/32bit */ -#if defined(__GNUC__) && !defined(NO_LONG_LONG) -#define __HAS_LONG_LONG__ -#endif - -typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned int u32; -#ifdef __HAS_LONG_LONG__ -typedef unsigned long long u64; -#endif - -typedef signed char s8; -typedef signed short s16; -typedef signed int s32; -#ifdef __HAS_LONG_LONG__ -typedef signed long long s64; -#endif - -typedef unsigned int uint; -typedef signed int sint; - -typedef u16 X86EMU_pioAddr; - -#endif /* __X86EMU_TYPES_H */ diff --git a/util/x86emu/include/x86emu/x86emu.h b/util/x86emu/include/x86emu/x86emu.h deleted file mode 100644 index 493e494927..0000000000 --- a/util/x86emu/include/x86emu/x86emu.h +++ /dev/null @@ -1,197 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for public specific functions. -* Any application linking against us should only -* include this header -* -****************************************************************************/ -/* $XFree86: xc/extras/x86emu/include/x86emu.h,v 1.2 2000/11/21 23:10:25 tsi Exp $ */ - -#ifndef __X86EMU_X86EMU_H -#define __X86EMU_X86EMU_H - -#include <stddef.h> -#include <console/console.h> -#if CONFIG_X86EMU_DEBUG -#define DEBUG -#endif - -#include "types.h" -#define X86API -#define X86APIP * -#include "regs.h" - -/*---------------------- Macros and type definitions ----------------------*/ - -#pragma pack(1) - -/**************************************************************************** -REMARKS: -Data structure containing ponters to programmed I/O functions used by the -emulator. This is used so that the user program can hook all programmed -I/O for the emulator to handled as necessary by the user program. By -default the emulator contains simple functions that do not do access the -hardware in any way. To allow the emualtor access the hardware, you will -need to override the programmed I/O functions using the X86EMU_setupPioFuncs -function. - -HEADER: -x86emu.h - -MEMBERS: -inb - Function to read a byte from an I/O port -inw - Function to read a word from an I/O port -inl - Function to read a dword from an I/O port -outb - Function to write a byte to an I/O port -outw - Function to write a word to an I/O port -outl - Function to write a dword to an I/O port -****************************************************************************/ -typedef struct { - u8 (X86APIP inb)(X86EMU_pioAddr addr); - u16 (X86APIP inw)(X86EMU_pioAddr addr); - u32 (X86APIP inl)(X86EMU_pioAddr addr); - void (X86APIP outb)(X86EMU_pioAddr addr, u8 val); - void (X86APIP outw)(X86EMU_pioAddr addr, u16 val); - void (X86APIP outl)(X86EMU_pioAddr addr, u32 val); - } X86EMU_pioFuncs; - -/**************************************************************************** -REMARKS: -Data structure containing ponters to memory access functions used by the -emulator. This is used so that the user program can hook all memory -access functions as necessary for the emulator. By default the emulator -contains simple functions that only access the internal memory of the -emulator. If you need specialised functions to handle access to different -types of memory (ie: hardware framebuffer accesses and BIOS memory access -etc), you will need to override this using the X86EMU_setupMemFuncs -function. - -HEADER: -x86emu.h - -MEMBERS: -rdb - Function to read a byte from an address -rdw - Function to read a word from an address -rdl - Function to read a dword from an address -wrb - Function to write a byte to an address -wrw - Function to write a word to an address -wrl - Function to write a dword to an address -****************************************************************************/ -typedef struct { - u8 (X86APIP rdb)(u32 addr); - u16 (X86APIP rdw)(u32 addr); - u32 (X86APIP rdl)(u32 addr); - void (X86APIP wrb)(u32 addr, u8 val); - void (X86APIP wrw)(u32 addr, u16 val); - void (X86APIP wrl)(u32 addr, u32 val); - } X86EMU_memFuncs; - -/**************************************************************************** - Here are the default memory read and write - function in case they are needed as fallbacks. -***************************************************************************/ -extern u8 X86API rdb(u32 addr); -extern u16 X86API rdw(u32 addr); -extern u32 X86API rdl(u32 addr); -extern void X86API wrb(u32 addr, u8 val); -extern void X86API wrw(u32 addr, u16 val); -extern void X86API wrl(u32 addr, u32 val); - -#pragma pack() - -/*--------------------- type definitions -----------------------------------*/ - -typedef void (X86APIP X86EMU_intrFuncs)(int num); -extern X86EMU_intrFuncs _X86EMU_intrTab[256]; - -/*-------------------------- Function Prototypes --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -void X86EMU_setupMemFuncs(X86EMU_memFuncs *funcs); -void X86EMU_setupPioFuncs(X86EMU_pioFuncs *funcs); -void X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[]); -void X86EMU_prepareForInt(int num); - -void X86EMU_setMemBase(void *base, size_t size); - -/* decode.c */ - -void X86EMU_exec(void); -void X86EMU_halt_sys(void); - -#if CONFIG_X86EMU_DEBUG -#define HALT_SYS() \ - printf("halt_sys: in %s\n", __func__); \ - X86EMU_halt_sys(); -#else -#define HALT_SYS() X86EMU_halt_sys() -#endif - -/* Debug options */ - -#define DEBUG_DECODE_F 0x000001 /* print decoded instruction */ -#define DEBUG_TRACE_F 0x000002 /* dump regs before/after execution */ -#define DEBUG_STEP_F 0x000004 -#define DEBUG_DISASSEMBLE_F 0x000008 -#define DEBUG_BREAK_F 0x000010 -#define DEBUG_SVC_F 0x000020 -#define DEBUG_FS_F 0x000080 -#define DEBUG_PROC_F 0x000100 -#define DEBUG_SYSINT_F 0x000200 /* bios system interrupts. */ -#define DEBUG_TRACECALL_F 0x000400 -#define DEBUG_INSTRUMENT_F 0x000800 -#define DEBUG_MEM_TRACE_F 0x001000 -#define DEBUG_IO_TRACE_F 0x002000 -#define DEBUG_TRACECALL_REGS_F 0x004000 -#define DEBUG_DECODE_NOPRINT_F 0x008000 -#define DEBUG_SAVE_IP_CS_F 0x010000 -#define DEBUG_TRACEJMP_F 0x020000 -#define DEBUG_TRACEJMP_REGS_F 0x040000 -#define DEBUG_SYS_F (DEBUG_SVC_F|DEBUG_FS_F|DEBUG_PROC_F) - -void X86EMU_trace_regs(void); -void X86EMU_trace_xregs(void); -void X86EMU_dump_memory(u16 seg, u16 off, u32 amt); -int X86EMU_trace_on(void); -int X86EMU_trace_off(void); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_X86EMU_H */ diff --git a/util/x86emu/x86.c b/util/x86emu/x86.c deleted file mode 100644 index 2ce5b4534d..0000000000 --- a/util/x86emu/x86.c +++ /dev/null @@ -1,244 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 coresystems GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#include <device/pci.h> -#include <string.h> - -#include <arch/io.h> -#include <arch/registers.h> -#include <console/console.h> -#include <arch/interrupt.h> - -#define REALMODE_BASE ((void *)0x600) - -struct realmode_idt { - u16 offset, cs; -}; - -void x86_exception(struct eregs *info); - -extern unsigned char __idt_handler, __idt_handler_size; -extern unsigned char __realmode_code, __realmode_code_size; -extern unsigned char __run_optionrom, __run_interrupt; - -void (*run_optionrom)(u32 devfn) __attribute__((regparm(0))) = (void *)&__run_optionrom; -void (*vga_enable_console)(void) __attribute__((regparm(0))) = (void *)&__run_interrupt; - -int (*intXX_handler[256])(struct eregs *regs) = { NULL }; - -static int intXX_exception_handler(struct eregs *regs) -{ - printk(BIOS_INFO, "Oops, exception %d while executing option rom\n", - regs->vector); - x86_exception(regs); // Call coreboot exception handler - - return 0; // Never returns? -} - -static int intXX_unknown_handler(struct eregs *regs) -{ - printk(BIOS_INFO, "Unsupported software interrupt #0x%x\n", - regs->vector); - - return -1; -} - -/* setup interrupt handlers for mainboard */ -void mainboard_interrupt_handlers(int intXX, void *intXX_func) -{ - intXX_handler[intXX] = intXX_func; -} - -int int12_handler(struct eregs *regs); -int int15_handler(struct eregs *regs); -int int1a_handler(struct eregs *regs); - -static void setup_interrupt_handlers(void) -{ - int i; - - /* The first 16 intXX functions are not BIOS services, - * but the CPU-generated exceptions ("hardware interrupts") - */ - for (i = 0; i < 0x10; i++) - intXX_handler[i] = &intXX_exception_handler; - - /* Mark all other intXX calls as unknown first */ - for (i = 0x10; i < 0x100; i++) - { - /* If the mainboard_interrupt_handler isn't called first. - */ - if(!intXX_handler[i]) - { - /* Now set the default functions that are actually - * needed to initialize the option roms. This is very - * slick, as it allows us to implement mainboard specific - * interrupt handlers, such as the int15 - */ - switch (i) { - case 0x12: - intXX_handler[0x12] = &int12_handler; - break; - case 0x15: - intXX_handler[0x15] = &int15_handler; - break; - case 0x1a: - intXX_handler[0x1a] = &int1a_handler; - break; - default: - intXX_handler[i] = &intXX_unknown_handler; - break; - } - } - } -} - -static void write_idt_stub(void *target, u8 intnum) -{ - unsigned char *codeptr; - codeptr = (unsigned char *) target; - memcpy(codeptr, &__idt_handler, (size_t)&__idt_handler_size); - codeptr[3] = intnum; /* modify int# in the code stub. */ -} - -static void setup_realmode_idt(void) -{ - struct realmode_idt *idts = (struct realmode_idt *) 0; - int i; - - /* Copy IDT stub code for each interrupt. This might seem wasteful - * but it is really simple - */ - for (i = 0; i < 256; i++) { - idts[i].cs = 0; - idts[i].offset = 0x1000 + (i * (u32)&__idt_handler_size); - write_idt_stub((void *)((u32 )idts[i].offset), i); - } - - /* Many option ROMs use the hard coded interrupt entry points in the - * system bios. So install them at the known locations. - * Only need int10 so far. - */ - - /* int42 is the relocated int10 */ - write_idt_stub((void *)0xff065, 0x42); -} - -void run_bios(struct device *dev, unsigned long addr) -{ - /* clear vga bios data area */ - memset((void *)0x400, 0, 0x200); - - /* Set up C interrupt handlers */ - setup_interrupt_handlers(); - - /* Setting up realmode IDT */ - setup_realmode_idt(); - - memcpy(REALMODE_BASE, &__realmode_code, (size_t)&__realmode_code_size); - printk(BIOS_SPEW, "Real mode stub @%p: %d bytes\n", REALMODE_BASE, - (u32)&__realmode_code_size); - - printk(BIOS_DEBUG, "Calling Option ROM...\n"); - run_optionrom((dev->bus->secondary << 8) | dev->path.pci.devfn); - printk(BIOS_DEBUG, "... Option ROM returned.\n"); -} - -int __attribute__((regparm(0))) interrupt_handler(u32 intnumber, - u32 gsfs, u32 dses, - u32 edi, u32 esi, - u32 ebp, u32 esp, - u32 ebx, u32 edx, - u32 ecx, u32 eax, - u32 cs_ip, u16 stackflags); - -int __attribute__((regparm(0))) interrupt_handler(u32 intnumber, - u32 gsfs, u32 dses, - u32 edi, u32 esi, - u32 ebp, u32 esp, - u32 ebx, u32 edx, - u32 ecx, u32 eax, - u32 cs_ip, u16 stackflags) -{ - u32 ip; - u32 cs; - u32 flags; - int ret = -1; - struct eregs reg_info; - - ip = cs_ip & 0xffff; - cs = cs_ip >> 16; - flags = stackflags; - - printk(BIOS_DEBUG, "oprom: INT# 0x%x\n", intnumber); - printk(BIOS_DEBUG, "oprom: eax: %08x ebx: %08x ecx: %08x edx: %08x\n", - eax, ebx, ecx, edx); - printk(BIOS_DEBUG, "oprom: ebp: %08x esp: %08x edi: %08x esi: %08x\n", - ebp, esp, edi, esi); - printk(BIOS_DEBUG, "oprom: ip: %04x cs: %04x flags: %08x\n", - ip, cs, flags); - - // Fetch arguments from the stack and put them into - // a structure that we want to pass on to our sub interrupt - // handlers. - reg_info = (struct eregs) { - .eax=eax, - .ecx=ecx, - .edx=edx, - .ebx=ebx, - .esp=esp, - .ebp=ebp, - .esi=esi, - .edi=edi, - .vector=intnumber, - .error_code=0, // ?? - .eip=ip, - .cs=cs, - .eflags=flags // ?? - }; - - // Call the interrupt handler for this int# - ret = intXX_handler[intnumber](®_info); - - // Put registers back on the stack. The assembler code - // will later pop them. - // What happens here is that we force (volatile!) changing - // the values of the parameters of this function. We do this - // because we know that they stay alive on the stack after - // we leave this function. Don't say this is bollocks. - *(volatile u32 *)&eax = reg_info.eax; - *(volatile u32 *)&ecx = reg_info.ecx; - *(volatile u32 *)&edx = reg_info.edx; - *(volatile u32 *)&ebx = reg_info.ebx; - *(volatile u32 *)&esi = reg_info.esi; - *(volatile u32 *)&edi = reg_info.edi; - flags = reg_info.eflags; - - /* Pass errors back to our caller via the CARRY flag */ - if (ret) { - printk(BIOS_DEBUG,"error!\n"); - flags |= 1; // error: set carry - }else{ - flags &= ~1; // no error: clear carry - } - *(volatile u16 *)&stackflags = flags; - - return ret; -} - diff --git a/util/x86emu/x86_asm.S b/util/x86emu/x86_asm.S deleted file mode 100644 index 616aa8675f..0000000000 --- a/util/x86emu/x86_asm.S +++ /dev/null @@ -1,347 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 coresystems GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#define REALMODE_BASE 0x600 -#define RELOCATED(x) (x - __realmode_code + REALMODE_BASE) - -/* CR0 bits */ -#define PE (1 << 0) - -/* This is the intXX interrupt handler stub code. It gets copied - * to the IDT and to some fixed addresses in the F segment. Before - * the code can used, it gets patched up by the C function copying - * it: byte 3 (the $0 in movb $0, %al) is overwritten with the int#. - */ - - .code16 - .globl __idt_handler -__idt_handler: - pushal - movb $0, %al /* This instruction gets modified */ - ljmp $0, $__interrupt_handler_16bit - .globl __idt_handler_size -__idt_handler_size = ( . - __idt_handler) - - -/* In order to be independent of coreboot's position in RAM - * we relocate a part of the code to the low megabyte, so the - * CPU can use it in real-mode. This code lives at __realmode_code. - */ - .globl __realmode_code -__realmode_code: - -/* Realmode IDT pointer structure. */ - .globl __realmode_idt -__realmode_idt = RELOCATED(.) - .word 1023 /* 16-bit limit */ - .long 0 /* 24-bit base */ - .word 0 - -/* Preserve old stack */ -__stack = RELOCATED(.) - .long 0 - - .code32 - .globl __run_optionrom -__run_optionrom = RELOCATED(.) - /* save all registers to the stack */ - pushal - - /* Move the protected mode stack to a safe place */ - mov %esp, __stack - - /* Get devfn into %ecx */ - movl %esp, %ebp - /* This function is called with regparm=0 and we have - * to skip the 32 byte from pushal: - */ - movl 36(%ebp), %ecx - - /* Activate the right segment descriptor real mode. */ - ljmp $0x28, $RELOCATED(1f) -1: -.code16 - /* 16 bit code from here on... */ - - /* Load the segment registers w/ properly configured - * segment descriptors. They will retain these - * configurations (limits, writability, etc.) once - * protected mode is turned off. - */ - mov $0x30, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss - - /* Turn off protection */ - movl %cr0, %eax - andl $~PE, %eax - movl %eax, %cr0 - - /* Now really going into real mode */ - ljmp $0, $RELOCATED(1f) -1: - /* Setup a stack: Put the stack at the end of page zero. - * That way we can easily share it between real and - * protected, since the 16-bit ESP at segment 0 will - * work for any case. */ - mov $0x0, %ax - mov %ax, %ss - movl $0x1000, %eax - movl %eax, %esp - - /* Load our 16 bit idt */ - xor %ax, %ax - mov %ax, %ds - lidt __realmode_idt - - /* Set all segments to 0x0000, ds to 0x0040 */ - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov $0x40, %ax - mov %ax, %ds - mov %cx, %ax // restore ax - - /* ************************************ */ - // TODO this will not work for non-VGA option ROMs - /* run VGA BIOS at 0xc000:0003 */ - lcall $0xc000, $0x0003 - /* ************************************ */ - - /* If we got here, just about done. - * Need to get back to protected mode - */ - movl %cr0, %eax - orl $PE, %eax - movl %eax, %cr0 - - /* Now that we are in protected mode - * jump to a 32 bit code segment. - */ - data32 ljmp $0x10, $RELOCATED(1f) -1: - .code32 - movw $0x18, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss - - /* restore proper idt */ - lidt idtarg - - /* and exit */ - mov __stack, %esp - popal - ret - - .globl __run_interrupt -__run_interrupt = RELOCATED(.) - - /* paranoia -- does ecx get saved? not sure. This is - * the easiest safe thing to do. */ - pushal - /* save the stack */ - mov %esp, __stack - - - /* This configures CS properly for real mode. */ - ljmp $0x28, $RELOCATED(1f) -1: - .code16 /* 16 bit code from here on... */ - - // DEBUG - movb $0xec, %al - outb %al, $0x80 - - /* Load the segment registers w/ properly configured segment - * descriptors. They will retain these configurations (limits, - * writability, etc.) once protected mode is turned off. - */ - mov $0x30, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss - - /* Turn off protected mode */ - movl %cr0, %eax - andl $~PE, %eax - movl %eax, %cr0 - - /* Now really going into real mode */ - data32 ljmp $0, $RELOCATED(1f) -1: - - /* put the stack at the end of page zero. - * that way we can easily share it between real and protected, - * since the 16-bit ESP at segment 0 will work for any case. - */ - /* setup a stack */ - mov $0x0, %ax - mov %ax, %ss - movl $0x1000, %eax - movl %eax, %esp - - /* Load 16-bit intXX IDT */ - xor %ax, %ax - mov %ax, %ds - lidt __realmode_idt - - /* Set all segments to 0x0000 */ - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - - /* Call VGA BIOS int10 function 0x4f14 to enable main console - * Epia-M does not always autosence the main console so forcing - * it on is good. - */ - - /* Ask VGA option rom to enable main console */ - movw $0x4f14,%ax - movw $0x8003,%bx - movw $1, %cx - movw $0, %dx - movw $0, %di - int $0x10 - - /* Ok, the job is done, now go back to protected mode coreboot */ - movl %cr0, %eax - orl $PE, %eax - movl %eax, %cr0 - - /* Now that we are in protected mode jump to a 32-bit code segment. */ - data32 ljmp $0x10, $RELOCATED(1f) -1: - .code32 - movw $0x18, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss - - /* restore coreboot's 32-bit IDT */ - lidt idtarg - - /* Exit */ - mov __stack, %esp - popal - ret - -/* This is the 16-bit interrupt entry point called by the IDT stub code. - * Before this code code is called, %eax is pushed to the stack, and the - * interrupt number is loaded into %al - */ - .code16 -__interrupt_handler_16bit = RELOCATED(.) - push %ds - push %es - push %fs - push %gs - - /* Clean up the interrupt number. We could have done this in the stub, - * but it would have cost 2 more bytes per stub entry. - */ - andl $0xff, %eax - pushl %eax /* ... and make it the first parameter */ - - /* Switch to protected mode */ - movl %cr0, %eax - orl $PE, %eax - movl %eax, %cr0 - - /* ... and jump to a 32 bit code segment. */ - data32 ljmp $0x10, $RELOCATED(1f) -1: - .code32 - movw $0x18, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss - - lidt idtarg - - /* Call the C interrupt handler */ - movl $interrupt_handler, %eax - call *%eax - - /* Now return to real mode ... */ - ljmp $0x28, $RELOCATED(1f) -1: - .code16 - /* Load the segment registers with properly configured segment - * descriptors. They will retain these configurations (limits, - * writability, etc.) once protected mode is turned off. - */ - mov $0x30, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss - - /* Disable Protected Mode */ - movl %cr0, %eax - andl $~PE, %eax - movl %eax, %cr0 - - /* Now really going into real mode */ - ljmp $0, $RELOCATED(1f) -1: - /* Restore real-mode stack segment */ - mov $0x0, %ax - mov %ax, %ss - - /* Restore 16-bit IDT */ - xor %ax, %ax - mov %ax, %ds - lidt __realmode_idt - - /* Set up our segment registers to segment 0x0000 */ - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov $0x40, %ax - mov %ax, %ds - - /* Restore all registers, including those - * manipulated by the C handler - */ - popl %eax - pop %gs - pop %fs - pop %es - pop %ds - popal - iret - - .globl __realmode_code_size -__realmode_code_size = (. - __realmode_code) - - .code32 diff --git a/util/x86emu/x86_interrupts.c b/util/x86emu/x86_interrupts.c deleted file mode 100644 index 95964f89f2..0000000000 --- a/util/x86emu/x86_interrupts.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2001 Ronald G. Minnich - * Copyright (C) 2005 Nick.Barker9@btinternet.com - * Copyright (C) 2007-2009 coresystems GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/pci_ops.h> -#include <string.h> -#include <console/console.h> -#include <arch/io.h> -#include <arch/registers.h> - -enum { - PCIBIOS_CHECK = 0xb101, - PCIBIOS_FINDDEV = 0xb102, - PCIBIOS_READCONFBYTE = 0xb108, - PCIBIOS_READCONFWORD = 0xb109, - PCIBIOS_READCONFDWORD = 0xb10a, - PCIBIOS_WRITECONFBYTE = 0xb10b, - PCIBIOS_WRITECONFWORD = 0xb10c, - PCIBIOS_WRITECONFDWORD = 0xb10d -}; - -// errors go in AH. Just set these up so that word assigns -// will work. KISS. -enum { - PCIBIOS_SUCCESSFUL = 0x0000, - PCIBIOS_UNSUPPORTED = 0x8100, - PCIBIOS_BADVENDOR = 0x8300, - PCIBIOS_NODEV = 0x8600, - PCIBIOS_BADREG = 0x8700 -}; - -int int12_handler(struct eregs *regs); -int int1a_handler(struct eregs *regs); -int int15_handler(struct eregs *regs); - -int int12_handler(struct eregs *regs) -{ - regs->eax = 64 * 1024; - return 0; -} - -int int1a_handler(struct eregs *regs) -{ - unsigned short func = (unsigned short)regs->eax; - int retval = 0; - unsigned short devid, vendorid, devfn; - /* Use short to get rid of gabage in upper half of 32-bit register */ - short devindex; - unsigned char bus; - struct device *dev; - u32 dword; - u16 word; - u8 byte, reg; - - switch (func) { - case PCIBIOS_CHECK: - regs->edx = 0x20494350; /* ' ICP' */ - regs->edi = 0x00000000; /* protected mode entry */ - retval = 0; - break; - case PCIBIOS_FINDDEV: - devid = regs->ecx; - vendorid = regs->edx; - devindex = regs->esi; - dev = 0; - while ((dev = dev_find_device(vendorid, devid, dev))) { - if (devindex <= 0) - break; - devindex--; - } - if (dev) { - unsigned short busdevfn; - regs->eax = 0; - // busnum is an unsigned char; - // devfn is an int, so we mask it off. - busdevfn = (dev->bus->secondary << 8) - | (dev->path.pci.devfn & 0xff); - printk(BIOS_DEBUG, "0x%x: return 0x%x\n", func, busdevfn); - regs->ebx = busdevfn; - retval = 0; - } else { - regs->eax = PCIBIOS_NODEV; - retval = -1; - } - break; - case PCIBIOS_READCONFDWORD: - case PCIBIOS_READCONFWORD: - case PCIBIOS_READCONFBYTE: - case PCIBIOS_WRITECONFDWORD: - case PCIBIOS_WRITECONFWORD: - case PCIBIOS_WRITECONFBYTE: - devfn = regs->ebx & 0xff; - bus = regs->ebx >> 8; - reg = regs->edi; - dev = dev_find_slot(bus, devfn); - if (!dev) { - printk(BIOS_DEBUG, "0x%x: BAD DEVICE bus %d devfn 0x%x\n", func, bus, devfn); - // idiots. the pcibios guys assumed you'd never pass a bad bus/devfn! - regs->eax = PCIBIOS_BADREG; - retval = -1; - return retval; - } - switch (func) { - case PCIBIOS_READCONFBYTE: - byte = pci_read_config8(dev, reg); - regs->ecx = byte; - break; - case PCIBIOS_READCONFWORD: - word = pci_read_config16(dev, reg); - regs->ecx = word; - break; - case PCIBIOS_READCONFDWORD: - dword = pci_read_config32(dev, reg); - regs->ecx = dword; - break; - case PCIBIOS_WRITECONFBYTE: - byte = regs->ecx; - pci_write_config8(dev, reg, byte); - break; - case PCIBIOS_WRITECONFWORD: - word = regs->ecx; - pci_write_config16(dev, reg, word); - break; - case PCIBIOS_WRITECONFDWORD: - dword = regs->ecx; - pci_write_config32(dev, reg, dword); - break; - } - - printk(BIOS_DEBUG, "0x%x: bus %d devfn 0x%x reg 0x%x val 0x%x\n", - func, bus, devfn, reg, regs->ecx); - regs->eax = 0; - retval = 0; - break; - default: - printk(BIOS_ERR, "UNSUPPORTED PCIBIOS FUNCTION 0x%x\n", func); - retval = -1; - break; - } - - return retval; -} - -int int15_handler(struct eregs *regs) -{ - int res = -1; - - /* This int15 handler is VIA Tech. specific. Other chipsets need other - * handlers. The right way to do this is to move this handler code into - * the mainboard or northbridge code. - */ - switch (regs->eax & 0xffff) { - case 0x5f19: - break; - case 0x5f18: - regs->eax = 0x5f; - // MCLK = 133, 32M frame buffer, 256 M main memory - regs->ebx = 0x545; - regs->ecx = 0x060; - res = 0; - break; - case 0x5f00: - regs->eax = 0x8600; - break; - case 0x5f01: - regs->eax = 0x5f; - regs->ecx = (regs->ecx & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768 - res = 0; - break; - case 0x5f02: - regs->eax = 0x5f; - regs->ebx = (regs->ebx & 0xffff0000) | 2; - regs->ecx = (regs->ecx & 0xffff0000) | 0x401; // PAL + crt only - regs->edx = (regs->edx & 0xffff0000) | 0; // TV Layout - default - res = 0; - break; - case 0x5f0f: - regs->eax = 0x860f; - break; - /* And now Intel IGD code */ -#define BOOT_DISPLAY_DEFAULT 0 -#define BOOT_DISPLAY_CRT (1 << 0) -#define BOOT_DISPLAY_TV (1 << 1) -#define BOOT_DISPLAY_EFP (1 << 2) -#define BOOT_DISPLAY_LCD (1 << 3) -#define BOOT_DISPLAY_CRT2 (1 << 4) -#define BOOT_DISPLAY_TV2 (1 << 5) -#define BOOT_DISPLAY_EFP2 (1 << 6) -#define BOOT_DISPLAY_LCD2 (1 << 7) - - case 0x5f35: - regs->eax = 0x5f; - regs->ecx = BOOT_DISPLAY_DEFAULT; - res = 0; - break; - case 0x5f40: - regs->eax = 0x5f; - regs->ecx = 3; // This is mainboard specific - printk(BIOS_DEBUG, "DISPLAY=%x\n", regs->ecx); - res = 0; - break; - default: - printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", - regs->eax & 0xffff); - } - - return res; -} - diff --git a/util/x86emu/x86emu/LICENSE b/util/x86emu/x86emu/LICENSE deleted file mode 100644 index a3ede4a87d..0000000000 --- a/util/x86emu/x86emu/LICENSE +++ /dev/null @@ -1,17 +0,0 @@ - License information - ------------------- - -The x86emu library is under a BSD style license, comaptible -with the XFree86 and X licenses used by XFree86. The -original x86emu libraries were under the GNU General Public -License. Due to license incompatibilities between the GPL -and the XFree86 license, the original authors of the code -decided to allow a license change. If you have submitted -code to the original x86emu project, and you don't agree -with the license change, please contact us and let you -know. Your code will be removed to comply with your wishes. - -If you have any questions about this, please send email to -x86emu@linuxlabs.com or KendallB@scitechsoft.com for -clarification. - diff --git a/util/x86emu/x86emu/Makefile.inc b/util/x86emu/x86emu/Makefile.inc deleted file mode 100644 index 2c5f7a7eb9..0000000000 --- a/util/x86emu/x86emu/Makefile.inc +++ /dev/null @@ -1,7 +0,0 @@ -obj-y += debug.o -obj-y += decode.o -obj-y += fpu.o -obj-y += ops.o -obj-y += ops2.o -obj-y += prim_ops.o -obj-y += sys.o diff --git a/util/x86emu/x86emu/debug.c b/util/x86emu/x86emu/debug.c deleted file mode 100644 index b3f4b6ebfb..0000000000 --- a/util/x86emu/x86emu/debug.c +++ /dev/null @@ -1,434 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1991-2004 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file contains the code to handle debugging of the -* emulator. -* -****************************************************************************/ - -#include "x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -#ifdef DEBUG - -static void print_encoded_bytes (u16 s, u16 o); -static void print_decoded_instruction (void); -int parse_line (char *s, int *ps, int *n); - -/* should look something like debug's output. */ -void X86EMU_trace_regs (void) -{ - if (DEBUG_TRACE()) { - if (M.x86.mode & (SYSMODE_PREFIX_DATA | SYSMODE_PREFIX_ADDR)) { - x86emu_dump_xregs(); - } else { - x86emu_dump_regs(); - } - } - if (DEBUG_DECODE() && ! DEBUG_DECODE_NOPRINT()) { - printf("%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) -{ - if (DEBUG_TRACE()) { - x86emu_dump_xregs(); - } -} - -void x86emu_just_disassemble (void) -{ - /* - * This routine called if the flag DEBUG_DISASSEMBLE is set kind - * of a hack! - */ - printf("%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 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. */ -} - -void x86emu_check_ip_access (void) -{ - /* NULL as of now */ -} - -void x86emu_check_sp_access (void) -{ -} - -void x86emu_check_mem_access (u32 dummy) -{ - /* check bounds, etc */ -} - -void x86emu_check_data_access (uint dummy1, uint dummy2) -{ - /* check bounds, etc */ -} - -void x86emu_inc_decoded_inst_len (int x) -{ - M.x86.enc_pos += x; -} - -void x86emu_decode_printf (const char *x) -{ - sprintf(M.x86.decoded_buf+M.x86.enc_str_pos,"%s",x); - M.x86.enc_str_pos += strlen(x); -} - -void x86emu_decode_printf2 (const 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); -} - -void x86emu_end_instr (void) -{ - M.x86.enc_str_pos = 0; - M.x86.enc_pos = 0; -} - -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)); - } - printf("%-20s ",buf1); -} - -static void print_decoded_instruction (void) -{ - printf("%s", M.x86.decoded_buf); -} - -void x86emu_print_int_vect (u16 iv) -{ - u16 seg,off; - - if (iv > 256) return; - seg = fetch_data_word_abs(0,iv*4); - off = fetch_data_word_abs(0,iv*4+2); - printf("%04x:%04x ", seg, off); -} - -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) { - printf("%04x:%04x ", seg, start); - for (i=start; i< off; i++) - printf(" "); - for ( ; i< end; i++) - printf("%02x ", fetch_data_byte_abs(seg,i)); - printf("\n"); - start = end; - end = start + 16; - } -} - -void x86emu_single_step (void) -{ -#if 0 - 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) { - printf("-"); - 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; - printf("Toggled decoding to %s\n",(noDecode)?"FALSE":"TRUE"); - break; - case 't': - case 0: - done = 1; - break; - } - } -#endif -} - -int X86EMU_trace_on(void) -{ - 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); -} - -int parse_line (char *s, int *ps, int *n) -{ -#if 0 - 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; - } -#else - return 0; -#endif -} - -#endif /* DEBUG */ - -void x86emu_dump_regs (void) -{ - printf("\tAX=%04x ", M.x86.R_AX ); - printf("BX=%04x ", M.x86.R_BX ); - printf("CX=%04x ", M.x86.R_CX ); - printf("DX=%04x ", M.x86.R_DX ); - printf("SP=%04x ", M.x86.R_SP ); - printf("BP=%04x ", M.x86.R_BP ); - printf("SI=%04x ", M.x86.R_SI ); - printf("DI=%04x\n", M.x86.R_DI ); - printf("\tDS=%04x ", M.x86.R_DS ); - printf("ES=%04x ", M.x86.R_ES ); - printf("SS=%04x ", M.x86.R_SS ); - printf("CS=%04x ", M.x86.R_CS ); - printf("IP=%04x ", M.x86.R_IP ); - if (ACCESS_FLAG(F_OF)) printf("OV "); /* CHECKED... */ - else printf("NV "); - if (ACCESS_FLAG(F_DF)) printf("DN "); - else printf("UP "); - if (ACCESS_FLAG(F_IF)) printf("EI "); - else printf("DI "); - if (ACCESS_FLAG(F_SF)) printf("NG "); - else printf("PL "); - if (ACCESS_FLAG(F_ZF)) printf("ZR "); - else printf("NZ "); - if (ACCESS_FLAG(F_AF)) printf("AC "); - else printf("NA "); - if (ACCESS_FLAG(F_PF)) printf("PE "); - else printf("PO "); - if (ACCESS_FLAG(F_CF)) printf("CY "); - else printf("NC "); - printf("\n"); -} - -void x86emu_dump_xregs (void) -{ - printf("\tEAX=%08x ", M.x86.R_EAX ); - printf("EBX=%08x ", M.x86.R_EBX ); - printf("ECX=%08x ", M.x86.R_ECX ); - printf("EDX=%08x \n", M.x86.R_EDX ); - printf("\tESP=%08x ", M.x86.R_ESP ); - printf("EBP=%08x ", M.x86.R_EBP ); - printf("ESI=%08x ", M.x86.R_ESI ); - printf("EDI=%08x\n", M.x86.R_EDI ); - printf("\tDS=%04x ", M.x86.R_DS ); - printf("ES=%04x ", M.x86.R_ES ); - printf("SS=%04x ", M.x86.R_SS ); - printf("CS=%04x ", M.x86.R_CS ); - printf("EIP=%08x\n\t", M.x86.R_EIP ); - if (ACCESS_FLAG(F_OF)) printf("OV "); /* CHECKED... */ - else printf("NV "); - if (ACCESS_FLAG(F_DF)) printf("DN "); - else printf("UP "); - if (ACCESS_FLAG(F_IF)) printf("EI "); - else printf("DI "); - if (ACCESS_FLAG(F_SF)) printf("NG "); - else printf("PL "); - if (ACCESS_FLAG(F_ZF)) printf("ZR "); - else printf("NZ "); - if (ACCESS_FLAG(F_AF)) printf("AC "); - else printf("NA "); - if (ACCESS_FLAG(F_PF)) printf("PE "); - else printf("PO "); - if (ACCESS_FLAG(F_CF)) printf("CY "); - else printf("NC "); - printf("\n"); -} diff --git a/util/x86emu/x86emu/debug.h b/util/x86emu/x86emu/debug.h deleted file mode 100644 index 7aac995cc3..0000000000 --- a/util/x86emu/x86emu/debug.h +++ /dev/null @@ -1,226 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* 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 - -/*---------------------- Macros and type definitions ----------------------*/ - -/* printf is not available in coreboot... use printk */ -#define printf(x...) printk(BIOS_DEBUG, x) - -/* checks to be enabled for "runtime" */ - -#define CHECK_IP_FETCH_F 0x1 -#define CHECK_SP_ACCESS_F 0x2 -#define CHECK_MEM_ACCESS_F 0x4 /*using regular linear pointer */ -#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) -#else -# define CHECK_IP_FETCH() -# define CHECK_SP_ACCESS() -# define CHECK_MEM_ACCESS() -# define CHECK_DATA_ACCESS() -#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_TRACEJMP() (M.x86.debug & DEBUG_TRACEJMP_F) -# define DEBUG_TRACEJMPREGS() (M.x86.debug & DEBUG_TRACEJMP_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_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_TRACEJMP() 0 -# define DEBUG_TRACEJMPREGS() 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) - -/* - * The following allow us to look at the bytes of an instruction. The - * first INCR_INSTRN_LEN, is called everytime bytes are consumed in - * 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 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; \ - } -#else -# define INC_DECODED_INST_LEN(x) -# define DECODE_PRINTF(x) -# define DECODE_PRINTF2(x,y) -# define SAVE_IP_CS(x,y) -#endif - -#ifdef DEBUG -#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() -#else -# define SINGLE_STEP() -#endif - -#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(); -#else -# define START_OF_INSTR() -# define END_OF_INSTR() -# define END_OF_INSTR_NO_TRACE() -#endif - -#ifdef DEBUG -# define CALL_TRACE(u,v,w,x,s) \ - if (DEBUG_TRACECALLREGS()) \ - x86emu_dump_regs(); \ - if (DEBUG_TRACECALL()) \ - printf("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x); -# define RETURN_TRACE(u,v,w,x,s) \ - if (DEBUG_TRACECALLREGS()) \ - x86emu_dump_regs(); \ - if (DEBUG_TRACECALL()) \ - printf("%04x:%04x: RET %s %04x:%04x\n",u,v,s,w,x); -# define JMP_TRACE(u,v,w,x,s) \ - if (DEBUG_TRACEJMPREGS()) \ - x86emu_dump_regs(); \ - if (DEBUG_TRACEJMP()) \ - printf("%04x:%04x: JMP %s%04x:%04x\n", u , v, s, w, x); -#else -# define CALL_TRACE(u,v,w,x,s) -# define RETURN_TRACE(u,v,w,x,s) -# define JMP_TRACE(u,v,w,x,s) -#endif - -#ifdef DEBUG -#define DB(x) x -#else -#define DB(x) -#endif - -/*-------------------------- Function Prototypes --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -void x86emu_inc_decoded_inst_len (int x); -void x86emu_decode_printf (const char *x); -void x86emu_decode_printf2 (const char *x, int y); -void x86emu_just_disassemble (void); -void x86emu_single_step (void); -void x86emu_end_instr (void); -void x86emu_dump_regs (void); -void x86emu_dump_xregs (void); -void x86emu_print_int_vect (u16 iv); -void x86emu_instrument_instruction (void); -void x86emu_check_ip_access (void); -void x86emu_check_sp_access (void); -void x86emu_check_mem_access (u32 p); -void x86emu_check_data_access (uint s, uint o); - -void disassemble_forward (u16 seg, u16 off, int n); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_DEBUG_H */ diff --git a/util/x86emu/x86emu/decode.c b/util/x86emu/x86emu/decode.c deleted file mode 100644 index 3d2ba23566..0000000000 --- a/util/x86emu/x86emu/decode.c +++ /dev/null @@ -1,1149 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1991-2004 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* 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. -* -****************************************************************************/ - -#include "x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -REMARKS: -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; - } - } -} - -/**************************************************************************** -PARAMETERS: -intrnum - Interrupt number to raise - -REMARKS: -Raise the specified interrupt to be handled before the execution of the -next instruction. -****************************************************************************/ -void x86emu_intr_raise( - u8 intrnum) -{ - printf("%s, raising exeception %x\n", __func__, intrnum); - x86emu_dump_regs(); - M.x86.intno = intrnum; - M.x86.intr |= INTR_SYNCH; -} - -/**************************************************************************** -REMARKS: -Main execution loop for the emulator. We return from here when the system -halts, which is normally caused by a stack fault when we return from the -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( if (M.x86.R_SP != 0) { - printf("halted\n"); - X86EMU_trace_regs(); - } - else { - if (M.x86.debug) - printf("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; - //} - } -} - -/**************************************************************************** -REMARKS: -Halts the system by setting the halted system flag. -****************************************************************************/ -void X86EMU_halt_sys(void) -{ - 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 - -REMARKS: -Raise the specified interrupt to be handled before the execution of the -next instruction. - -NOTE: Do not inline this function, as (*sys_rdb) is already inline! -****************************************************************************/ -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; -} - -/**************************************************************************** -RETURNS: -Immediate byte value read from instruction queue - -REMARKS: -This function returns the immediate byte from the instruction queue, and -moves the instruction pointer to the next value. - -NOTE: Do not inline this function, as (*sys_rdb) is already inline! -****************************************************************************/ -u8 fetch_byte_imm(void) -{ - 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; -} - -/**************************************************************************** -RETURNS: -Immediate word value read from instruction queue - -REMARKS: -This function returns the immediate byte from the instruction queue, and -moves the instruction pointer to the next value. - -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; -} - -/**************************************************************************** -RETURNS: -Immediate lone value read from instruction queue - -REMARKS: -This function returns the immediate byte from the instruction queue, and -moves the instruction pointer to the next value. - -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; -} - -/**************************************************************************** -RETURNS: -Value of the default data segment - -REMARKS: -Inline function that returns the default data segment for the current -instruction. - -On the x86 processor, the default segment is not always DS if there is -no segment override. Address modes such as -3[BP] or 10[BP+SI] all refer to -addresses relative to SS (ie: on the stack). So, at the minimum, all -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) - - 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) - -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 - printf("error: should not happen: multiple overrides.\n"); -#endif - HALT_SYS(); - return 0; - } -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - return (*sys_rdb)((get_data_segment() << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - return (*sys_rdw)((get_data_segment() << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - return (*sys_rdl)((get_data_segment() << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - return (*sys_rdb)(((u32)segment << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - return (*sys_rdw)(((u32)segment << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - return (*sys_rdl)(((u32)segment << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a word value to an segmented memory location. The segment used is -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - (*sys_wrb)((get_data_segment() << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a word value to an segmented memory location. The segment used is -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - (*sys_wrw)((get_data_segment() << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a long value to an segmented memory location. The segment used is -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - (*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 - -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - (*sys_wrb)(((u32)segment << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - (*sys_wrw)(((u32)segment << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -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) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - (*sys_wrl)(((u32)segment << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -reg - Register to decode - -RETURNS: -Pointer to the appropriate register - -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) -{ - 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 - -RETURNS: -Pointer to the appropriate register - -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) -{ - 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 - -RETURNS: -Pointer to the appropriate register - -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) -{ - 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 - -RETURNS: -Pointer to the appropriate register - -REMARKS: -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) -{ - 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. -****************************************************************************/ -static 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. -****************************************************************************/ -static unsigned decode_sib_address( - int mod) -{ - 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 - -RETURNS: -Offset in memory for the address decoding - -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). -****************************************************************************/ -unsigned decode_rm00_address( - int rm) -{ - 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 - -RETURNS: -Offset in memory for the address decoding - -REMARKS: -Return the offset given by mod=01 addressing. Also enables the -decoding of instructions. -****************************************************************************/ -unsigned decode_rm01_address( - int rm) -{ - 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 - -RETURNS: -Offset in memory for the address decoding - -REMARKS: -Return the offset given by mod=10 addressing. Also enables the -decoding of instructions. -****************************************************************************/ -unsigned decode_rm10_address( - int rm) -{ - 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/x86emu/x86emu/decode.h b/util/x86emu/x86emu/decode.h deleted file mode 100644 index 99ed7f6f35..0000000000 --- a/util/x86emu/x86emu/decode.h +++ /dev/null @@ -1,88 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for instruction decoding logic. -* -****************************************************************************/ - -#ifndef __X86EMU_DECODE_H -#define __X86EMU_DECODE_H - -/*---------------------- Macros and type definitions ----------------------*/ - -/* 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 - -/*-------------------------- Function Prototypes --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -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); -u32 fetch_long_imm (void); -u8 fetch_data_byte (uint offset); -u8 fetch_data_byte_abs (uint segment, uint offset); -u16 fetch_data_word (uint offset); -u16 fetch_data_word_abs (uint segment, uint offset); -u32 fetch_data_long (uint offset); -u32 fetch_data_long_abs (uint segment, uint offset); -void store_data_byte (uint offset, u8 val); -void store_data_byte_abs (uint segment, uint offset, u8 val); -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); -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++ */ -#endif - -#endif /* __X86EMU_DECODE_H */ diff --git a/util/x86emu/x86emu/fpu.c b/util/x86emu/x86emu/fpu.c deleted file mode 100644 index daa2ffa75a..0000000000 --- a/util/x86emu/x86emu/fpu.c +++ /dev/null @@ -1,945 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1991-2004 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file contains the code to implement the decoding and -* emulation of the FPU instructions. -* -****************************************************************************/ - -#include "x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/* 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(); -} - -#ifdef DEBUG - -static const 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", -}; - -static const char *x86emu_fpu_op_d9_tab1[] = { - "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", - - "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", - - "FCHS", "FABS", "ESC_D9", "ESC_D9", - "FTST", "FXAM", "ESC_D9", "ESC_D9", - - "FLD1", "FLDL2T", "FLDL2E", "FLDPI", - "FLDLG2", "FLDLN2", "FLDZ", "ESC_D9", - - "F2XM1", "FYL2X", "FPTAN", "FPATAN", - "FXTRACT", "ESC_D9", "FDECSTP", "FINCSTP", - - "FPREM", "FYL2XP1", "FSQRT", "ESC_D9", - "FRNDINT", "FSCALE", "ESC_D9", "ESC_D9", -}; - -#endif /* DEBUG */ - -/* opcode=0xd9 */ -void x86emuOp_esc_coprocess_d9(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - 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]); - } -#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; - } -#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(); -} - -#ifdef DEBUG - -static const 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 ", -}; - -#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; - } -#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; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static const 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 ", -}; - -#endif /* DEBUG */ - -/* opcode=0xdb */ -void x86emuOp_esc_coprocess_db(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - 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; - } -#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; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG -static const 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", -}; -#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; - } -#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; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static const 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", - - "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", - "ESC_DD\t2C,", "ESC_DD\t2D,", "ESC_DD\t2E,", "ESC_DD\t2F,", -}; - -#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; - } -#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; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static const 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 */ - -/* 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; - } -#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; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static const 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," -}; - -#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; - } -#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; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} diff --git a/util/x86emu/x86emu/fpu.h b/util/x86emu/x86emu/fpu.h deleted file mode 100644 index 5fb271463b..0000000000 --- a/util/x86emu/x86emu/fpu.h +++ /dev/null @@ -1,61 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for FPU instruction decoding. -* -****************************************************************************/ - -#ifndef __X86EMU_FPU_H -#define __X86EMU_FPU_H - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -/* these have to be defined, whether 8087 support compiled in or not. */ - -extern void x86emuOp_esc_coprocess_d8 (u8 op1); -extern void x86emuOp_esc_coprocess_d9 (u8 op1); -extern void x86emuOp_esc_coprocess_da (u8 op1); -extern void x86emuOp_esc_coprocess_db (u8 op1); -extern void x86emuOp_esc_coprocess_dc (u8 op1); -extern void x86emuOp_esc_coprocess_dd (u8 op1); -extern void x86emuOp_esc_coprocess_de (u8 op1); -extern void x86emuOp_esc_coprocess_df (u8 op1); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_FPU_H */ diff --git a/util/x86emu/x86emu/ops.c b/util/x86emu/x86emu/ops.c deleted file mode 100644 index c66da95760..0000000000 --- a/util/x86emu/x86emu/ops.c +++ /dev/null @@ -1,5472 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1991-2004 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes subroutines to implement the decoding -* and emulation of all the x86 processor instructions. -* -* There are approximately 250 subroutines in here, which correspond -* to the 256 byte-"opcodes" found on the 8086. The table which -* dispatches this is found in the files optab.[ch]. -* -* Each opcode proc has a comment preceeding it which gives it's table -* address. Several opcodes are missing (undefined) in the table. -* -* Each proc includes information for decoding (DECODE_PRINTF and -* DECODE_PRINTF2), debugging (TRACE_REGS, SINGLE_STEP), and misc -* functions (START_OF_INSTR, END_OF_INSTR). -* -* Many of the procedures are *VERY* similar in coding. This has -* allowed for a very large amount of code to be generated in a fairly -* short amount of time (i.e. cut, paste, and modify). The result is -* that much of the code below could have been folded into subroutines -* for a large reduction in size of this file. The downside would be -* that there would be a penalty in execution speed. The file could -* also have been *MUCH* larger by inlining certain functions which -* were called. This could have resulted even faster execution. The -* prime directive I used to decide whether to inline the code or to -* modularize it, was basically: 1) no unnecessary subroutine calls, -* 2) no routines more than about 200 lines in size, and 3) modularize -* any code that I might not get right the first time. The fetch_* -* subroutines fall into the latter category. The The decode_* fall -* into the second category. The coding of the "switch(mod){ .... }" -* in many of the subroutines below falls into the first category. -* Especially, the coding of {add,and,or,sub,...}_{byte,word} -* subroutines are an especially glaring case of the third guideline. -* Since so much of the code is cloned from other modules (compare -* opcode #00 to opcode #01), making the basic operations subroutine -* calls is especially important; otherwise mistakes in coding an -* "add" would represent a nightmare in maintenance. -* -****************************************************************************/ - -#include "x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/* constant arrays to do several instructions in just one function */ - -#ifdef DEBUG -static const 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 const char *opF6_names[8] = - { "TEST\t", "", "NOT\t", "NEG\t", "MUL\t", "IMUL\t", "DIV\t", "IDIV\t" }; - -#endif - -/**************************************************************************** -PARAMETERS: -op1 - Instruction op code - -REMARKS: -Handles illegal opcodes. -****************************************************************************/ -static void x86emuOp_illegal_op( - u8 op1) -{ - START_OF_INSTR(); - if (M.x86.R_SP != 0) { - DECODE_PRINTF("ILLEGAL X86 OPCODE\n"); - TRACE_REGS(); - DB( printf("%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 -****************************************************************************/ -static 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); - if (op1 != 7) - 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 -****************************************************************************/ -static 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); - if (op1 != 7) - 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); - if (op1 != 7) - 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 -****************************************************************************/ -static 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 -****************************************************************************/ -static 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 -****************************************************************************/ -static void x86emuOp_genop_byte_AL_IMM(u8 op1) -{ - 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 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x06 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x07 -****************************************************************************/ -static 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 0x0e -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f. Escape for two-byte opcode (286 or better) -****************************************************************************/ -static 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 0x16 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x17 -****************************************************************************/ -static 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 0x1e -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1f -****************************************************************************/ -static 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 0x26 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x27 -****************************************************************************/ -static 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 0x2e -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2f -****************************************************************************/ -static 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 0x36 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x37 -****************************************************************************/ -static 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 0x3e -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3f -****************************************************************************/ -static 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 - 0x47 -****************************************************************************/ -static void x86emuOp_inc_register(u8 op1) -{ - 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 0x48 - 0x4F -****************************************************************************/ -static void x86emuOp_dec_register(u8 op1) -{ - 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 0x50 - 0x57 -****************************************************************************/ -static void x86emuOp_push_register(u8 op1) -{ - 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 0x58 - 0x5F -****************************************************************************/ -static void x86emuOp_pop_register(u8 op1) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x60 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x61 -****************************************************************************/ -static 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(); -} - -/*opcode 0x62 ILLEGAL OP, calls x86emuOp_illegal_op() */ -/*opcode 0x63 ILLEGAL OP, calls x86emuOp_illegal_op() */ - -/**************************************************************************** -REMARKS: -Handles opcode 0x64 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x65 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x66 - prefix for 32-bit register -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x67 - prefix for 32-bit address -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x68 -****************************************************************************/ -static void x86emuOp_push_word_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x69 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6a -****************************************************************************/ -static void x86emuOp_push_byte_IMM(u8 X86EMU_UNUSED(op1)) -{ - s16 imm; - - START_OF_INSTR(); - imm = (s8)fetch_byte_imm(); - DECODE_PRINTF2("PUSH\t%d\n", imm); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(imm); - } else { - push_word(imm); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6b -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6c -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6d -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6e -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6f -****************************************************************************/ -static 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 - 0x7F -****************************************************************************/ -static void x86emuOp_jump_near_cond(u8 op1) -{ - s8 offset; - u16 target; - int cond; - - /* 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; - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, M.x86.R_IP, " NEAR COND "); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x80 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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(); - *destreg = (*genop_byte_operation[rh]) (*destreg, imm); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x81 -****************************************************************************/ -static void x86emuOp_opc81_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 - */ - 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; - } - } -#endif - /* - * 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, imm; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - *destreg = (*genop_long_operation[rh]) (*destreg, imm); - } else { - u16 *destreg, imm; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - *destreg = (*genop_word_operation[rh]) (*destreg, imm); - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x82 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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(); - *destreg = (*genop_byte_operation[rh]) (*destreg, imm); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x83 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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, imm; - - destreg = DECODE_RM_LONG_REGISTER(rl); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - *destreg = (*genop_long_operation[rh]) (*destreg, imm); - } else { - u16 *destreg, imm; - - destreg = DECODE_RM_WORD_REGISTER(rl); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - *destreg = (*genop_word_operation[rh]) (*destreg, imm); - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x84 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x85 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x86 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x87 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x88 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x89 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8a -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8b -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8c -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8d -****************************************************************************/ -static void x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u16 *srcreg; - uint destoffset; - -/* - * TODO: Need to handle address size prefix! - * - * lea eax,[eax+ebx*2] ?? - */ - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8e -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8f -****************************************************************************/ -static 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(); - } - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x90 -****************************************************************************/ -static void x86emuOp_nop(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("NOP\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x91-0x97 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_register(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - op1 &= 0x7; - - START_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_AX = *reg16; - *reg16 = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x98 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x99 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9a -****************************************************************************/ -static void x86emuOp_call_far_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 farseg, faroff; - - START_OF_INSTR(); - DECODE_PRINTF("CALL\t"); - faroff = fetch_word_imm(); - farseg = fetch_word_imm(); - DECODE_PRINTF2("%04x:", farseg); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9b -****************************************************************************/ -static void x86emuOp_wait(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("WAIT"); - TRACE_AND_STEP(); - /* NADA. */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9c -****************************************************************************/ -static void x86emuOp_pushf_word(u8 X86EMU_UNUSED(op1)) -{ - u32 flags; - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9d -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9e -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9f -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa0 -****************************************************************************/ -static void x86emuOp_mov_AL_M_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa1 -****************************************************************************/ -static void x86emuOp_mov_AX_M_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa2 -****************************************************************************/ -static void x86emuOp_mov_M_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa3 -****************************************************************************/ -static void x86emuOp_mov_M_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa4 -****************************************************************************/ -static 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 (E)CX is ZERO. */ - count = (M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : M.x86.R_CX; - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX = 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; - if (M.x86.intr & INTR_HALTED) - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa5 -****************************************************************************/ -static 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 (E)CX is ZERO. */ - count = (M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : M.x86.R_CX; - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX = 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; - if (M.x86.intr & INTR_HALTED) - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa6 -****************************************************************************/ -static 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 | SYSMODE_PREFIX_REPNE)) { - /* REPE */ - /* move them until (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : 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); - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - 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; - if (M.x86.intr & INTR_HALTED) - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa7 -****************************************************************************/ -static 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"); - 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 (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : 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); - } - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - 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; - if (M.x86.intr & INTR_HALTED) - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa8 -****************************************************************************/ -static void x86emuOp_test_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa9 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xaa -****************************************************************************/ -static 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 (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : M.x86.R_CX) != 0) { - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL); - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (M.x86.intr & INTR_HALTED) - break; - } - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xab -****************************************************************************/ -static 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 (E)CX is ZERO. */ - count = (M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : M.x86.R_CX; - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX = 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; - if (M.x86.intr & INTR_HALTED) - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xac -****************************************************************************/ -static 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 (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : M.x86.R_CX) != 0) { - M.x86.R_AL = fetch_data_byte(M.x86.R_SI); - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - if (M.x86.intr & INTR_HALTED) - break; - } - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xad -****************************************************************************/ -static 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 (E)CX is ZERO. */ - count = (M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : M.x86.R_CX; - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX = 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; - if (M.x86.intr & INTR_HALTED) - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xae -****************************************************************************/ -static 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 (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : 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); - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - if (M.x86.intr & INTR_HALTED) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : 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); - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - if (M.x86.intr & INTR_HALTED) - break; - } - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xaf -****************************************************************************/ -static 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 (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : 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); - } - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - if (M.x86.intr & INTR_HALTED) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until (E)CX is ZERO. */ - while (((M.x86.mode & SYSMODE_32BIT_REP) ? M.x86.R_ECX : 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); - } - if (M.x86.mode & SYSMODE_32BIT_REP) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - if (M.x86.intr & INTR_HALTED) - break; - } - 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 -****************************************************************************/ -static 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 -****************************************************************************/ -static 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 0xc0 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc1 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc2 -****************************************************************************/ -static void x86emuOp_ret_near_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 imm; - - START_OF_INSTR(); - DECODE_PRINTF("RET\t"); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - RETURN_TRACE(M.x86.saved_cs,M.x86.saved_ip, M.x86.R_CS, M.x86.R_IP, "NEAR"); - M.x86.R_SP += imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc3 -****************************************************************************/ -static void x86emuOp_ret_near(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("RET\n"); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - RETURN_TRACE(M.x86.saved_cs,M.x86.saved_ip, M.x86.R_CS, M.x86.R_IP, "NEAR"); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc4 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc5 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc6 -****************************************************************************/ -static 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(); - } - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc7 -****************************************************************************/ -static 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(); - } - 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 { - u16 *destreg; - u16 imm; - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc8 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc9 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xca -****************************************************************************/ -static void x86emuOp_ret_far_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 imm; - - START_OF_INSTR(); - DECODE_PRINTF("RETF\t"); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - RETURN_TRACE(M.x86.saved_cs,M.x86.saved_ip, M.x86.R_CS, M.x86.R_IP, "FAR"); - M.x86.R_SP += imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcb -****************************************************************************/ -static void x86emuOp_ret_far(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("RETF\n"); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - RETURN_TRACE(M.x86.saved_cs,M.x86.saved_ip, M.x86.R_CS, M.x86.R_IP, "FAR"); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcc -****************************************************************************/ -static void x86emuOp_int3(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcd -****************************************************************************/ -static void x86emuOp_int_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 tmp; - u8 intnum; - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xce -****************************************************************************/ -static void x86emuOp_into(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcf -****************************************************************************/ -static void x86emuOp_iret(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("IRET\n"); - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd0 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd1 -****************************************************************************/ -static void x86emuOp_opcD1_word_RM_1(u8 X86EMU_UNUSED(op1)) -{ - 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); -#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; - } - } -#endif - /* 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 { - 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; - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd2 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd3 -****************************************************************************/ -static 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); -#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; - } - } -#endif - /* 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd4 -****************************************************************************/ -static void x86emuOp_aam(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd5 -****************************************************************************/ -static void x86emuOp_aad(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/* opcode 0xd6 ILLEGAL OPCODE */ - -/**************************************************************************** -REMARKS: -Handles opcode 0xd7 -****************************************************************************/ -static void x86emuOp_xlat(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/* instuctions D8 .. DF are in i87_ops.c */ - -/**************************************************************************** -REMARKS: -Handles opcode 0xe0 -****************************************************************************/ -static void x86emuOp_loopne(u8 X86EMU_UNUSED(op1)) -{ - 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(); - if (M.x86.mode & SYSMODE_PREFIX_ADDR) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - if (((M.x86.mode & SYSMODE_PREFIX_ADDR) ? M.x86.R_ECX : M.x86.R_CX) != 0 && !ACCESS_FLAG(F_ZF)) /* (E)CX != 0 and !ZF */ - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe1 -****************************************************************************/ -static void x86emuOp_loope(u8 X86EMU_UNUSED(op1)) -{ - 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(); - if (M.x86.mode & SYSMODE_PREFIX_ADDR) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - if (((M.x86.mode & SYSMODE_PREFIX_ADDR) ? M.x86.R_ECX : M.x86.R_CX) != 0 && ACCESS_FLAG(F_ZF)) /* (E)CX != 0 and ZF */ - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe2 -****************************************************************************/ -static void x86emuOp_loop(u8 X86EMU_UNUSED(op1)) -{ - 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(); - if (M.x86.mode & SYSMODE_PREFIX_ADDR) - M.x86.R_ECX -= 1; - else - M.x86.R_CX -= 1; - if (((M.x86.mode & SYSMODE_PREFIX_ADDR) ? M.x86.R_ECX : M.x86.R_CX) != 0) /* (E)CX != 0 */ - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe3 -****************************************************************************/ -static void x86emuOp_jcxz(u8 X86EMU_UNUSED(op1)) -{ - 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; - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, M.x86.R_IP, " CXZ "); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe4 -****************************************************************************/ -static void x86emuOp_in_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe5 -****************************************************************************/ -static void x86emuOp_in_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe6 -****************************************************************************/ -static void x86emuOp_out_byte_IMM_AL(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe7 -****************************************************************************/ -static void x86emuOp_out_word_IMM_AX(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe8 -****************************************************************************/ -static void x86emuOp_call_near_IMM(u8 X86EMU_UNUSED(op1)) -{ - s16 ip; - - START_OF_INSTR(); - DECODE_PRINTF("CALL\t"); - ip = (s16) fetch_word_imm(); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe9 -****************************************************************************/ -static void x86emuOp_jump_near_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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); - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, ip, " NEAR "); - TRACE_AND_STEP(); - M.x86.R_IP = (u16)ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xea -****************************************************************************/ -static void x86emuOp_jump_far_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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); - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, cs, ip, " FAR "); - TRACE_AND_STEP(); - M.x86.R_IP = ip; - M.x86.R_CS = cs; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xeb -****************************************************************************/ -static void x86emuOp_jump_byte_IMM(u8 X86EMU_UNUSED(op1)) -{ - 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); - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, target, " BYTE "); - TRACE_AND_STEP(); - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xec -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xed -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xee -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xef -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf0 -****************************************************************************/ -static void x86emuOp_lock(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("LOCK:\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/*opcode 0xf1 ILLEGAL OPERATION */ - -/**************************************************************************** -REMARKS: -Handles opcode 0xf2 -****************************************************************************/ -static void x86emuOp_repne(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("REPNE\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_REPNE; - if (M.x86.mode & SYSMODE_PREFIX_ADDR) - M.x86.mode |= SYSMODE_32BIT_REP; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf3 -****************************************************************************/ -static void x86emuOp_repe(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("REPE\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_REPE; - if (M.x86.mode & SYSMODE_PREFIX_ADDR) - M.x86.mode |= SYSMODE_32BIT_REP; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf4 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf5 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf6 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf7 -****************************************************************************/ -static void x86emuOp_opcF7_word_RM(u8 X86EMU_UNUSED(op1)) -{ - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf8 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf9 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfa -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfb -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfc -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfd -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfe -****************************************************************************/ -static void x86emuOp_opcFE_byte_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rh, rl; - u8 destval; - uint destoffset; - u8 *destreg; - - /* 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; - } - } -#endif - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xff -****************************************************************************/ -static void x86emuOp_opcFF_word_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rh, rl; - uint destoffset = 0; - u16 *destreg; - u32 *destreg32; - u16 destval,destval2; - u32 destval32; - - /* 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; - } - } -#endif - 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) { - destval32 = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval32 = inc_long(destval32); - store_data_long(destoffset, destval32); - } else { - 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) { - destval32 = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval32 = dec_long(destval32); - store_data_long(destoffset, destval32); - } else { - 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); - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, destval, " WORD "); - 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); - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, destval2, destval, " FAR "); - 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) { - destval32 = fetch_data_long(destoffset); - TRACE_AND_STEP(); - push_long(destval32); - } else { - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(destval); - } - break; - } - } else { - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - destreg32 = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg32 = inc_long(*destreg32); - } else { - 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) { - destreg32 = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg32 = dec_long(*destreg32); - } else { - 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) { - destreg32 = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - push_long(*destreg32); - } else { - 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_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_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_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_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_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_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_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_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_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 */ -/* 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, -/* 0x6b */ x86emuOp_imul_byte_IMM, -/* 0x6c */ x86emuOp_ins_byte, -/* 0x6d */ x86emuOp_ins_word, -/* 0x6e */ x86emuOp_outs_byte, -/* 0x6f */ x86emuOp_outs_word, - -/* 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, -/* 0x83 */ x86emuOp_opc83_word_RM_IMM, -/* 0x84 */ x86emuOp_test_byte_RM_R, -/* 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, -/* 0x8b */ x86emuOp_mov_word_R_RM, -/* 0x8c */ x86emuOp_mov_word_RM_SR, -/* 0x8d */ x86emuOp_lea_word_R_M, -/* 0x8e */ x86emuOp_mov_word_SR_RM, -/* 0x8f */ x86emuOp_pop_RM, - -/* 0x90 */ x86emuOp_nop, -/* 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, -/* 0x9b */ x86emuOp_wait, -/* 0x9c */ x86emuOp_pushf_word, -/* 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, -/* 0xa3 */ x86emuOp_mov_M_AX_IMM, -/* 0xa4 */ x86emuOp_movs_byte, -/* 0xa5 */ x86emuOp_movs_word, -/* 0xa6 */ x86emuOp_cmps_byte, -/* 0xa7 */ x86emuOp_cmps_word, -/* 0xa8 */ x86emuOp_test_AL_IMM, -/* 0xa9 */ x86emuOp_test_AX_IMM, -/* 0xaa */ x86emuOp_stos_byte, -/* 0xab */ x86emuOp_stos_word, -/* 0xac */ x86emuOp_lods_byte, -/* 0xad */ x86emuOp_lods_word, -/* 0xac */ x86emuOp_scas_byte, -/* 0xad */ x86emuOp_scas_word, - -/* 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, -/* 0xc3 */ x86emuOp_ret_near, -/* 0xc4 */ x86emuOp_les_R_IMM, -/* 0xc5 */ x86emuOp_lds_R_IMM, -/* 0xc6 */ x86emuOp_mov_byte_RM_IMM, -/* 0xc7 */ x86emuOp_mov_word_RM_IMM, -/* 0xc8 */ x86emuOp_enter, -/* 0xc9 */ x86emuOp_leave, -/* 0xca */ x86emuOp_ret_far_IMM, -/* 0xcb */ x86emuOp_ret_far, -/* 0xcc */ x86emuOp_int3, -/* 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 */ -/* 0xd7 */ x86emuOp_xlat, -/* 0xd8 */ x86emuOp_esc_coprocess_d8, -/* 0xd9 */ x86emuOp_esc_coprocess_d9, -/* 0xda */ x86emuOp_esc_coprocess_da, -/* 0xdb */ x86emuOp_esc_coprocess_db, -/* 0xdc */ x86emuOp_esc_coprocess_dc, -/* 0xdd */ x86emuOp_esc_coprocess_dd, -/* 0xde */ x86emuOp_esc_coprocess_de, -/* 0xdf */ x86emuOp_esc_coprocess_df, - -/* 0xe0 */ x86emuOp_loopne, -/* 0xe1 */ x86emuOp_loope, -/* 0xe2 */ x86emuOp_loop, -/* 0xe3 */ x86emuOp_jcxz, -/* 0xe4 */ x86emuOp_in_byte_AL_IMM, -/* 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, -/* 0xeb */ x86emuOp_jump_byte_IMM, -/* 0xec */ x86emuOp_in_byte_AL_DX, -/* 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, -/* 0xf3 */ x86emuOp_repe, -/* 0xf4 */ x86emuOp_halt, -/* 0xf5 */ x86emuOp_cmc, -/* 0xf6 */ x86emuOp_opcF6_byte_RM, -/* 0xf7 */ x86emuOp_opcF7_word_RM, - -/* 0xf8 */ x86emuOp_clc, -/* 0xf9 */ x86emuOp_stc, -/* 0xfa */ x86emuOp_cli, -/* 0xfb */ x86emuOp_sti, -/* 0xfc */ x86emuOp_cld, -/* 0xfd */ x86emuOp_std, -/* 0xfe */ x86emuOp_opcFE_byte_RM, -/* 0xff */ x86emuOp_opcFF_word_RM, -}; diff --git a/util/x86emu/x86emu/ops.h b/util/x86emu/x86emu/ops.h deleted file mode 100644 index 825b9eadd1..0000000000 --- a/util/x86emu/x86emu/ops.h +++ /dev/null @@ -1,47 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for operand decoding functions. -* -****************************************************************************/ - -#ifndef __X86EMU_OPS_H -#define __X86EMU_OPS_H - -extern void (*x86emu_optab[0x100])(u8 op1); -extern void (*x86emu_optab2[0x100])(u8 op2); - -int x86emu_check_jump_condition(u8 op); - -#endif /* __X86EMU_OPS_H */ diff --git a/util/x86emu/x86emu/ops2.c b/util/x86emu/x86emu/ops2.c deleted file mode 100644 index f5cb6498b1..0000000000 --- a/util/x86emu/x86emu/ops2.c +++ /dev/null @@ -1,1950 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1991-2004 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes subroutines to implement the decoding -* and emulation of all the x86 extended two-byte processor -* instructions. -* -****************************************************************************/ - -#include "x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -PARAMETERS: -op1 - Instruction op code - -REMARKS: -Handles illegal opcodes. -****************************************************************************/ -static void x86emuOp2_illegal_op(u8 op2) -{ - START_OF_INSTR(); - DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n"); - TRACE_REGS(); - printf("%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,0x01 - * ****************************************************************************/ - -static void x86emuOp2_opc_01(u8 op2) -{ - int mod, rl, rh; - u16 *destreg; - uint destoffset; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - - switch(rh) { - case 4: // SMSW (Store Machine Status Word) - // Decode the mod byte to find the addressing - // Dummy implementation: Always returns 0x10 (initial value as per intel manual volume 3, figure 8-1) -#define SMSW_INITIAL_VALUE 0x10 - DECODE_PRINTF("SMSW\t"); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - store_data_word(destoffset, SMSW_INITIAL_VALUE); - break; - case 1: - destoffset = decode_rm01_address(rl); - store_data_word(destoffset, SMSW_INITIAL_VALUE); - break; - case 2: - destoffset = decode_rm10_address(rl); - store_data_word(destoffset, SMSW_INITIAL_VALUE); - break; - case 3: - destreg = DECODE_RM_WORD_REGISTER(rl); - *destreg = SMSW_INITIAL_VALUE; - break; - } - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - DECODE_PRINTF("\n"); - break; - default: - DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE IN 0F 01\n"); - TRACE_REGS(); - printf("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n", - M.x86.R_CS, M.x86.R_IP-2, op2); - HALT_SYS(); - break; - } - - END_OF_INSTR(); -} - -/**************************************************************************** - * REMARKS: - * Handles opcode 0x0f,0x08 - * ****************************************************************************/ -static void x86emuOp2_invd(u8 op2) -{ - START_OF_INSTR(); - DECODE_PRINTF("INVD\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** - * REMARKS: - * Handles opcode 0x0f,0x09 - * ****************************************************************************/ -static void x86emuOp2_wbinvd(u8 op2) -{ - START_OF_INSTR(); - DECODE_PRINTF("WBINVD\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** - * REMARKS: - * Handles opcode 0x0f,0x30 - * ****************************************************************************/ -static void x86emuOp2_wrmsr(u8 op2) -{ - /* dummy implementation, does nothing */ - - START_OF_INSTR(); - DECODE_PRINTF("WRMSR\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** - * REMARKS: - * Handles opcode 0x0f,0x32 - * ****************************************************************************/ -static void x86emuOp2_rdmsr(u8 op2) -{ - /* dummy implementation, always return 0 */ - - START_OF_INSTR(); - DECODE_PRINTF("RDMSR\n"); - TRACE_AND_STEP(); - M.x86.R_EDX = 0; - M.x86.R_EAX = 0; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -#define xorl(a,b) (((a) && !(b)) || (!(a) && (b))) - -/**************************************************************************** -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)); - } -} - -static void x86emuOp2_long_jump(u8 op2) -{ - 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; - JMP_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, M.x86.R_IP, " LONG COND "); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xC8-0xCF -****************************************************************************/ -static s32 x86emu_bswap(s32 reg) -{ - // perform the byte swap - s32 temp = reg; - reg = (temp & 0xFF000000) >> 24 | - (temp & 0xFF0000) >> 8 | - (temp & 0xFF00) << 8 | - (temp & 0xFF) << 24; - return reg; -} - -static void x86emuOp2_bswap(u8 op2) -{ - /* byte swap 32 bit register */ - START_OF_INSTR(); - DECODE_PRINTF("BSWAP\t"); - switch (op2) { - case 0xc8: - DECODE_PRINTF("EAX\n"); - M.x86.R_EAX = x86emu_bswap(M.x86.R_EAX); - break; - case 0xc9: - DECODE_PRINTF("ECX\n"); - M.x86.R_ECX = x86emu_bswap(M.x86.R_ECX); - break; - case 0xca: - DECODE_PRINTF("EDX\n"); - M.x86.R_EDX = x86emu_bswap(M.x86.R_EDX); - break; - case 0xcb: - DECODE_PRINTF("EBX\n"); - M.x86.R_EBX = x86emu_bswap(M.x86.R_EBX); - break; - case 0xcc: - DECODE_PRINTF("ESP\n"); - M.x86.R_ESP = x86emu_bswap(M.x86.R_ESP); - break; - case 0xcd: - DECODE_PRINTF("EBP\n"); - M.x86.R_EBP = x86emu_bswap(M.x86.R_EBP); - break; - case 0xce: - DECODE_PRINTF("ESI\n"); - M.x86.R_ESI = x86emu_bswap(M.x86.R_ESI); - break; - case 0xcf: - DECODE_PRINTF("EDI\n"); - M.x86.R_EDI = x86emu_bswap(M.x86.R_EDI); - break; - } - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0x90-0x9F -****************************************************************************/ -static void x86emuOp2_set_byte(u8 op2) -{ - int mod, rl, rh; - uint destoffset; - u8 *destreg; - const 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa0 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa1 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: CPUID takes EAX/ECX as inputs, writes EAX/EBX/ECX/EDX as output -Handles opcode 0x0f,0xa2 -****************************************************************************/ -static void x86emuOp2_cpuid(u8 X86EMU_UNUSED(op2)) -{ - START_OF_INSTR(); - DECODE_PRINTF("CPUID\n"); - TRACE_AND_STEP(); - x86emu_cpuid(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa3 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa4 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa5 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa8 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa9 -****************************************************************************/ -static 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xaa -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xac -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xad -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xaf -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb2 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb3 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb4 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb5 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb6 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb7 -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xba -****************************************************************************/ -static void x86emuOp2_btX_I(u8 X86EMU_UNUSED(op2)) -{ - 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(); - printf("%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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbb -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbc -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbd -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbe -****************************************************************************/ -static 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); - 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(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbf -****************************************************************************/ -static 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); - 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_opc_01, /* 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_invd, /* invd (ring 0 PM) */ -/* 0x09 */ x86emuOp2_wbinvd, /* 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, -/* 0x13 */ x86emuOp2_illegal_op, -/* 0x14 */ x86emuOp2_illegal_op, -/* 0x15 */ x86emuOp2_illegal_op, -/* 0x16 */ x86emuOp2_illegal_op, -/* 0x17 */ x86emuOp2_illegal_op, -/* 0x18 */ x86emuOp2_illegal_op, -/* 0x19 */ x86emuOp2_illegal_op, -/* 0x1a */ x86emuOp2_illegal_op, -/* 0x1b */ x86emuOp2_illegal_op, -/* 0x1c */ x86emuOp2_illegal_op, -/* 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) */ -/* 0x25 */ x86emuOp2_illegal_op, -/* 0x26 */ x86emuOp2_illegal_op, /* mov treg,reg32 (ring 0 PM) */ -/* 0x27 */ x86emuOp2_illegal_op, -/* 0x28 */ x86emuOp2_illegal_op, -/* 0x29 */ x86emuOp2_illegal_op, -/* 0x2a */ x86emuOp2_illegal_op, -/* 0x2b */ x86emuOp2_illegal_op, -/* 0x2c */ x86emuOp2_illegal_op, -/* 0x2d */ x86emuOp2_illegal_op, -/* 0x2e */ x86emuOp2_illegal_op, -/* 0x2f */ x86emuOp2_illegal_op, - -/* 0x30 */ x86emuOp2_wrmsr, -/* 0x31 */ x86emuOp2_illegal_op, -/* 0x32 */ x86emuOp2_rdmsr, -/* 0x33 */ x86emuOp2_illegal_op, -/* 0x34 */ x86emuOp2_illegal_op, -/* 0x35 */ x86emuOp2_illegal_op, -/* 0x36 */ x86emuOp2_illegal_op, -/* 0x37 */ x86emuOp2_illegal_op, -/* 0x38 */ x86emuOp2_illegal_op, -/* 0x39 */ x86emuOp2_illegal_op, -/* 0x3a */ x86emuOp2_illegal_op, -/* 0x3b */ x86emuOp2_illegal_op, -/* 0x3c */ x86emuOp2_illegal_op, -/* 0x3d */ x86emuOp2_illegal_op, -/* 0x3e */ x86emuOp2_illegal_op, -/* 0x3f */ x86emuOp2_illegal_op, - -/* 0x40 */ x86emuOp2_illegal_op, -/* 0x41 */ x86emuOp2_illegal_op, -/* 0x42 */ x86emuOp2_illegal_op, -/* 0x43 */ x86emuOp2_illegal_op, -/* 0x44 */ x86emuOp2_illegal_op, -/* 0x45 */ x86emuOp2_illegal_op, -/* 0x46 */ x86emuOp2_illegal_op, -/* 0x47 */ x86emuOp2_illegal_op, -/* 0x48 */ x86emuOp2_illegal_op, -/* 0x49 */ x86emuOp2_illegal_op, -/* 0x4a */ x86emuOp2_illegal_op, -/* 0x4b */ x86emuOp2_illegal_op, -/* 0x4c */ x86emuOp2_illegal_op, -/* 0x4d */ x86emuOp2_illegal_op, -/* 0x4e */ x86emuOp2_illegal_op, -/* 0x4f */ x86emuOp2_illegal_op, - -/* 0x50 */ x86emuOp2_illegal_op, -/* 0x51 */ x86emuOp2_illegal_op, -/* 0x52 */ x86emuOp2_illegal_op, -/* 0x53 */ x86emuOp2_illegal_op, -/* 0x54 */ x86emuOp2_illegal_op, -/* 0x55 */ x86emuOp2_illegal_op, -/* 0x56 */ x86emuOp2_illegal_op, -/* 0x57 */ x86emuOp2_illegal_op, -/* 0x58 */ x86emuOp2_illegal_op, -/* 0x59 */ x86emuOp2_illegal_op, -/* 0x5a */ x86emuOp2_illegal_op, -/* 0x5b */ x86emuOp2_illegal_op, -/* 0x5c */ x86emuOp2_illegal_op, -/* 0x5d */ x86emuOp2_illegal_op, -/* 0x5e */ x86emuOp2_illegal_op, -/* 0x5f */ x86emuOp2_illegal_op, - -/* 0x60 */ x86emuOp2_illegal_op, -/* 0x61 */ x86emuOp2_illegal_op, -/* 0x62 */ x86emuOp2_illegal_op, -/* 0x63 */ x86emuOp2_illegal_op, -/* 0x64 */ x86emuOp2_illegal_op, -/* 0x65 */ x86emuOp2_illegal_op, -/* 0x66 */ x86emuOp2_illegal_op, -/* 0x67 */ x86emuOp2_illegal_op, -/* 0x68 */ x86emuOp2_illegal_op, -/* 0x69 */ x86emuOp2_illegal_op, -/* 0x6a */ x86emuOp2_illegal_op, -/* 0x6b */ x86emuOp2_illegal_op, -/* 0x6c */ x86emuOp2_illegal_op, -/* 0x6d */ x86emuOp2_illegal_op, -/* 0x6e */ x86emuOp2_illegal_op, -/* 0x6f */ x86emuOp2_illegal_op, - -/* 0x70 */ x86emuOp2_illegal_op, -/* 0x71 */ x86emuOp2_illegal_op, -/* 0x72 */ x86emuOp2_illegal_op, -/* 0x73 */ x86emuOp2_illegal_op, -/* 0x74 */ x86emuOp2_illegal_op, -/* 0x75 */ x86emuOp2_illegal_op, -/* 0x76 */ x86emuOp2_illegal_op, -/* 0x77 */ x86emuOp2_illegal_op, -/* 0x78 */ x86emuOp2_illegal_op, -/* 0x79 */ x86emuOp2_illegal_op, -/* 0x7a */ x86emuOp2_illegal_op, -/* 0x7b */ x86emuOp2_illegal_op, -/* 0x7c */ x86emuOp2_illegal_op, -/* 0x7d */ x86emuOp2_illegal_op, -/* 0x7e */ x86emuOp2_illegal_op, -/* 0x7f */ x86emuOp2_illegal_op, - -/* 0x80 */ x86emuOp2_long_jump, -/* 0x81 */ x86emuOp2_long_jump, -/* 0x82 */ x86emuOp2_long_jump, -/* 0x83 */ x86emuOp2_long_jump, -/* 0x84 */ x86emuOp2_long_jump, -/* 0x85 */ x86emuOp2_long_jump, -/* 0x86 */ x86emuOp2_long_jump, -/* 0x87 */ x86emuOp2_long_jump, -/* 0x88 */ x86emuOp2_long_jump, -/* 0x89 */ x86emuOp2_long_jump, -/* 0x8a */ x86emuOp2_long_jump, -/* 0x8b */ x86emuOp2_long_jump, -/* 0x8c */ x86emuOp2_long_jump, -/* 0x8d */ x86emuOp2_long_jump, -/* 0x8e */ x86emuOp2_long_jump, -/* 0x8f */ x86emuOp2_long_jump, - -/* 0x90 */ x86emuOp2_set_byte, -/* 0x91 */ x86emuOp2_set_byte, -/* 0x92 */ x86emuOp2_set_byte, -/* 0x93 */ x86emuOp2_set_byte, -/* 0x94 */ x86emuOp2_set_byte, -/* 0x95 */ x86emuOp2_set_byte, -/* 0x96 */ x86emuOp2_set_byte, -/* 0x97 */ x86emuOp2_set_byte, -/* 0x98 */ x86emuOp2_set_byte, -/* 0x99 */ x86emuOp2_set_byte, -/* 0x9a */ x86emuOp2_set_byte, -/* 0x9b */ x86emuOp2_set_byte, -/* 0x9c */ x86emuOp2_set_byte, -/* 0x9d */ x86emuOp2_set_byte, -/* 0x9e */ x86emuOp2_set_byte, -/* 0x9f */ x86emuOp2_set_byte, - -/* 0xa0 */ x86emuOp2_push_FS, -/* 0xa1 */ x86emuOp2_pop_FS, -/* 0xa2 */ x86emuOp2_cpuid, -/* 0xa3 */ x86emuOp2_bt_R, -/* 0xa4 */ x86emuOp2_shld_IMM, -/* 0xa5 */ x86emuOp2_shld_CL, -/* 0xa6 */ x86emuOp2_illegal_op, -/* 0xa7 */ x86emuOp2_illegal_op, -/* 0xa8 */ x86emuOp2_push_GS, -/* 0xa9 */ x86emuOp2_pop_GS, -/* 0xaa */ x86emuOp2_illegal_op, -/* 0xab */ x86emuOp2_bts_R, -/* 0xac */ x86emuOp2_shrd_IMM, -/* 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 */ -/* 0xb2 */ x86emuOp2_lss_R_IMM, -/* 0xb3 */ x86emuOp2_btr_R, -/* 0xb4 */ x86emuOp2_lfs_R_IMM, -/* 0xb5 */ x86emuOp2_lgs_R_IMM, -/* 0xb6 */ x86emuOp2_movzx_byte_R_RM, -/* 0xb7 */ x86emuOp2_movzx_word_R_RM, -/* 0xb8 */ x86emuOp2_illegal_op, -/* 0xb9 */ x86emuOp2_illegal_op, -/* 0xba */ x86emuOp2_btX_I, -/* 0xbb */ x86emuOp2_btc_R, -/* 0xbc */ x86emuOp2_bsf, -/* 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 */ -/* 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_bswap, -/* 0xc9 */ x86emuOp2_bswap, -/* 0xca */ x86emuOp2_bswap, -/* 0xcb */ x86emuOp2_bswap, -/* 0xcc */ x86emuOp2_bswap, -/* 0xcd */ x86emuOp2_bswap, -/* 0xce */ x86emuOp2_bswap, -/* 0xcf */ x86emuOp2_bswap, - -/* 0xd0 */ x86emuOp2_illegal_op, -/* 0xd1 */ x86emuOp2_illegal_op, -/* 0xd2 */ x86emuOp2_illegal_op, -/* 0xd3 */ x86emuOp2_illegal_op, -/* 0xd4 */ x86emuOp2_illegal_op, -/* 0xd5 */ x86emuOp2_illegal_op, -/* 0xd6 */ x86emuOp2_illegal_op, -/* 0xd7 */ x86emuOp2_illegal_op, -/* 0xd8 */ x86emuOp2_illegal_op, -/* 0xd9 */ x86emuOp2_illegal_op, -/* 0xda */ x86emuOp2_illegal_op, -/* 0xdb */ x86emuOp2_illegal_op, -/* 0xdc */ x86emuOp2_illegal_op, -/* 0xdd */ x86emuOp2_illegal_op, -/* 0xde */ x86emuOp2_illegal_op, -/* 0xdf */ x86emuOp2_illegal_op, - -/* 0xe0 */ x86emuOp2_illegal_op, -/* 0xe1 */ x86emuOp2_illegal_op, -/* 0xe2 */ x86emuOp2_illegal_op, -/* 0xe3 */ x86emuOp2_illegal_op, -/* 0xe4 */ x86emuOp2_illegal_op, -/* 0xe5 */ x86emuOp2_illegal_op, -/* 0xe6 */ x86emuOp2_illegal_op, -/* 0xe7 */ x86emuOp2_illegal_op, -/* 0xe8 */ x86emuOp2_illegal_op, -/* 0xe9 */ x86emuOp2_illegal_op, -/* 0xea */ x86emuOp2_illegal_op, -/* 0xeb */ x86emuOp2_illegal_op, -/* 0xec */ x86emuOp2_illegal_op, -/* 0xed */ x86emuOp2_illegal_op, -/* 0xee */ x86emuOp2_illegal_op, -/* 0xef */ x86emuOp2_illegal_op, - -/* 0xf0 */ x86emuOp2_illegal_op, -/* 0xf1 */ x86emuOp2_illegal_op, -/* 0xf2 */ x86emuOp2_illegal_op, -/* 0xf3 */ x86emuOp2_illegal_op, -/* 0xf4 */ x86emuOp2_illegal_op, -/* 0xf5 */ x86emuOp2_illegal_op, -/* 0xf6 */ x86emuOp2_illegal_op, -/* 0xf7 */ x86emuOp2_illegal_op, -/* 0xf8 */ x86emuOp2_illegal_op, -/* 0xf9 */ x86emuOp2_illegal_op, -/* 0xfa */ x86emuOp2_illegal_op, -/* 0xfb */ x86emuOp2_illegal_op, -/* 0xfc */ x86emuOp2_illegal_op, -/* 0xfd */ x86emuOp2_illegal_op, -/* 0xfe */ x86emuOp2_illegal_op, -/* 0xff */ x86emuOp2_illegal_op, -}; diff --git a/util/x86emu/x86emu/prim_asm.h b/util/x86emu/x86emu/prim_asm.h deleted file mode 100644 index 4fa8d55034..0000000000 --- a/util/x86emu/x86emu/prim_asm.h +++ /dev/null @@ -1,971 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* 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. -* -****************************************************************************/ -/* $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 - -#ifdef __WATCOMC__ - -#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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -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]; - -#endif - -#endif /* __X86EMU_PRIM_ASM_H */ diff --git a/util/x86emu/x86emu/prim_ops.c b/util/x86emu/x86emu/prim_ops.c deleted file mode 100644 index 20e75978e5..0000000000 --- a/util/x86emu/x86emu/prim_ops.c +++ /dev/null @@ -1,2496 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1991-2004 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* 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 -* -* Carry Chain Calculation -* -* This represents a somewhat expensive calculation which is -* apparently required to emulate the setting of the OF and AF flag. -* The latter is not so important, but the former is. The overflow -* flag is the XOR of the top two bits of the carry chain for an -* addition (similar for subtraction). Since we do not want to -* simulate the addition in a bitwise manner, we try to calculate the -* carry chain given the two operands and the result. -* -* So, given the following table, which represents the addition of two -* bits, we can derive a formula for the carry chain. -* -* a b cin r cout -* 0 0 0 0 0 -* 0 0 1 1 0 -* 0 1 0 1 0 -* 0 1 1 0 1 -* 1 0 0 1 0 -* 1 0 1 0 1 -* 1 1 0 0 1 -* 1 1 1 1 1 -* -* Construction of table for cout: -* -* ab -* r \ 00 01 11 10 -* |------------------ -* 0 | 0 1 1 1 -* 1 | 0 0 1 0 -* -* By inspection, one gets: cc = ab + r'(a + b) -* -* That represents alot of operations, but NO CHOICE.... -* -* Borrow Chain Calculation. -* -* The following table represents the subtraction of two bits, from -* which we can derive a formula for the borrow chain. -* -* a b bin r bout -* 0 0 0 0 0 -* 0 0 1 1 1 -* 0 1 0 1 1 -* 0 1 1 0 1 -* 1 0 0 1 0 -* 1 0 1 0 0 -* 1 1 0 0 0 -* 1 1 1 1 1 -* -* Construction of table for cout: -* -* ab -* r \ 00 01 11 10 -* |------------------ -* 0 | 0 1 0 0 -* 1 | 1 1 1 0 -* -* By inspection, one gets: bc = a'b + r(a' + b) -* -****************************************************************************/ - -#define PRIM_OPS_NO_REDEFINE_ASM -#include "x86emui.h" - -#define abs(x) ({ \ - int __x = (x); \ - (__x < 0) ? -__x : __x; \ - }) - -#define labs(x) ({ \ - long __x = (x); \ - (__x < 0) ? -__x : __x; \ - }) - -/*------------------------- Global Variables ------------------------------*/ - -static u32 x86emu_parity_tab[8] = -{ - 0x96696996, - 0x69969669, - 0x69969669, - 0x96696996, - 0x69969669, - 0x96696996, - 0x96696996, - 0x69969669, -}; - -#define PARITY(x) (((x86emu_parity_tab[(x) / 32] >> ((x) % 32)) & 1) == 0) -#define XOR2(x) (((x) ^ ((x)>>1)) & 0x1) - -/*----------------------------- Implementation ----------------------------*/ - - -/*--------- 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: -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); - set_szp_flags_16(res); - return res; -} - -/**************************************************************************** -REMARKS: -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); - set_szp_flags_16(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AAD instruction and side effects. -****************************************************************************/ -u16 aad_word(u16 d) -{ - u16 l; - u8 hb, lb; - - hb = (u8)((d >> 8) & 0xff); - lb = (u8)((d & 0xff)); - l = (u16)((lb + 10 * hb) & 0xFF); - - no_carry_byte_side_eff(l & 0xFF); - return l; -} - -/**************************************************************************** -REMARKS: -Implements the AAM instruction and side effects. -****************************************************************************/ -u16 aam_word(u8 d) -{ - u16 h, l; - - h = (u16)(d / 10); - l = (u16)(d % 10); - l |= (u16)(h << 8); - - no_carry_byte_side_eff(l & 0xFF); - return l; -} - -/**************************************************************************** -REMARKS: -Implements the ADC instruction and side effects. -****************************************************************************/ -u8 adc_byte(u8 d, u8 s) -{ - u32 res; /* all operands in native machine order */ - - res = d + s; - if (ACCESS_FLAG(F_CF)) res++; - - set_szp_flags_8(res); - calc_carry_chain(8,s,d,res,1); - - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADC instruction and side effects. -****************************************************************************/ -u16 adc_word(u16 d, u16 s) -{ - u32 res; /* all operands in native machine order */ - - res = d + s; - if (ACCESS_FLAG(F_CF)) - res++; - - set_szp_flags_16((u16)res); - calc_carry_chain(16,s,d,res,1); - - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADC instruction and side effects. -****************************************************************************/ -u32 adc_long(u32 d, u32 s) -{ - u32 lo; /* all operands in native machine order */ - u32 hi; - u32 res; - - lo = (d & 0xFFFF) + (s & 0xFFFF); - res = d + s; - - if (ACCESS_FLAG(F_CF)) { - lo++; - 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; -} - -/**************************************************************************** -REMARKS: -Implements the ADD instruction and side effects. -****************************************************************************/ -u8 add_byte(u8 d, u8 s) -{ - u32 res; /* all operands in native machine order */ - - res = d + s; - set_szp_flags_8((u8)res); - calc_carry_chain(8,s,d,res,1); - - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADD instruction and side effects. -****************************************************************************/ -u16 add_word(u16 d, u16 s) -{ - u32 res; /* all operands in native machine order */ - - res = d + s; - set_szp_flags_16((u16)res); - calc_carry_chain(16,s,d,res,1); - - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADD instruction and side effects. -****************************************************************************/ -u32 add_long(u32 d, u32 s) -{ - u32 res; - - res = d + s; - set_szp_flags_32(res); - calc_carry_chain(32,s,d,res,0); - - CONDITIONAL_SET_FLAG(res < d || res < s, F_CF); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AND instruction and side effects. -****************************************************************************/ -u8 and_byte(u8 d, u8 s) -{ - u8 res; /* all operands in native machine order */ - - res = d & s; - - no_carry_byte_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AND instruction and side effects. -****************************************************************************/ -u16 and_word(u16 d, u16 s) -{ - u16 res; /* all operands in native machine order */ - - res = d & s; - - no_carry_word_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AND instruction and side effects. -****************************************************************************/ -u32 and_long(u32 d, u32 s) -{ - u32 res; /* all operands in native machine order */ - - res = d & s; - no_carry_long_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the CMP instruction and side effects. -****************************************************************************/ -u8 cmp_byte(u8 d, u8 s) -{ - u32 res; /* all operands in native machine order */ - - res = d - s; - set_szp_flags_8((u8)res); - calc_borrow_chain(8, d, s, res, 1); - - return d; -} - -/**************************************************************************** -REMARKS: -Implements the CMP instruction and side effects. -****************************************************************************/ -u16 cmp_word(u16 d, u16 s) -{ - u32 res; /* all operands in native machine order */ - - res = d - s; - set_szp_flags_16((u16)res); - calc_borrow_chain(16, d, s, res, 1); - - return d; -} - -/**************************************************************************** -REMARKS: -Implements the CMP instruction and side effects. -****************************************************************************/ -u32 cmp_long(u32 d, u32 s) -{ - u32 res; /* all operands in native machine order */ - - res = d - s; - set_szp_flags_32(res); - calc_borrow_chain(32, d, s, res, 1); - - return d; -} - -/**************************************************************************** -REMARKS: -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); - } - set_szp_flags_8((u8)res); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -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); - } - set_szp_flags_8(d); - return d; -} - -/**************************************************************************** -REMARKS: -Implements the DEC instruction and side effects. -****************************************************************************/ -u8 dec_byte(u8 d) -{ - u32 res; /* all operands in native machine order */ - - res = d - 1; - set_szp_flags_8((u8)res); - calc_borrow_chain(8, d, 1, res, 0); - - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the DEC instruction and side effects. -****************************************************************************/ -u16 dec_word(u16 d) -{ - u32 res; /* all operands in native machine order */ - - res = d - 1; - set_szp_flags_16((u16)res); - calc_borrow_chain(16, d, 1, res, 0); - - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the DEC instruction and side effects. -****************************************************************************/ -u32 dec_long(u32 d) -{ - u32 res; /* all operands in native machine order */ - - res = d - 1; - - set_szp_flags_32(res); - calc_borrow_chain(32, d, 1, res, 0); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the INC instruction and side effects. -****************************************************************************/ -u8 inc_byte(u8 d) -{ - u32 res; /* all operands in native machine order */ - - res = d + 1; - set_szp_flags_8((u8)res); - calc_carry_chain(8, d, 1, res, 0); - - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the INC instruction and side effects. -****************************************************************************/ -u16 inc_word(u16 d) -{ - u32 res; /* all operands in native machine order */ - - res = d + 1; - set_szp_flags_16((u16)res); - calc_carry_chain(16, d, 1, res, 0); - - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the INC instruction and side effects. -****************************************************************************/ -u32 inc_long(u32 d) -{ - u32 res; /* all operands in native machine order */ - - res = d + 1; - set_szp_flags_32(res); - calc_carry_chain(32, d, 1, res, 0); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u8 or_byte(u8 d, u8 s) -{ - u8 res; /* all operands in native machine order */ - - res = d | s; - no_carry_byte_side_eff(res); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u16 or_word(u16 d, u16 s) -{ - u16 res; /* all operands in native machine order */ - - res = d | s; - no_carry_word_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u32 or_long(u32 d, u32 s) -{ - u32 res; /* all operands in native machine order */ - - res = d | s; - no_carry_long_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u8 neg_byte(u8 s) -{ - 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); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u16 neg_word(u16 s) -{ - u16 res; - - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u16)-s; - set_szp_flags_16((u16)res); - calc_borrow_chain(16, 0, s, res, 0); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u32 neg_long(u32 s) -{ - u32 res; - - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u32)-s; - set_szp_flags_32(res); - calc_borrow_chain(32, 0, s, res, 0); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the NOT instruction and side effects. -****************************************************************************/ -u8 not_byte(u8 s) -{ - return ~s; -} - -/**************************************************************************** -REMARKS: -Implements the NOT instruction and side effects. -****************************************************************************/ -u16 not_word(u16 s) -{ - return ~s; -} - -/**************************************************************************** -REMARKS: -Implements the NOT instruction and side effects. -****************************************************************************/ -u32 not_long(u32 s) -{ - return ~s; -} - -/**************************************************************************** -REMARKS: -Implements the RCL instruction and side effects. -****************************************************************************/ -u8 rcl_byte(u8 d, u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Implements the RCL instruction and side effects. -****************************************************************************/ -u16 rcl_word(u16 d, u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Implements the RCL instruction and side effects. -****************************************************************************/ -u32 rcl_long(u32 d, u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -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; -} - -/**************************************************************************** -REMARKS: -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; -} - -/**************************************************************************** -REMARKS: -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; -} - -/**************************************************************************** -REMARKS: -Implements the ROL instruction and side effects. -****************************************************************************/ -u8 rol_byte(u8 d, u8 s) -{ - unsigned int res, cnt, mask; - - /* rotate left */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. - - have - - CF B_7 ... B_0 - - 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); - - /* 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; -} - -/**************************************************************************** -REMARKS: -Implements the ROL instruction and side effects. -****************************************************************************/ -u16 rol_word(u16 d, u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Implements the ROL instruction and side effects. -****************************************************************************/ -u32 rol_long(u32 d, u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Implements the ROR instruction and side effects. -****************************************************************************/ -u8 ror_byte(u8 d, u8 s) -{ - unsigned int res, cnt, mask; - - /* rotate right */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. - - have - - B_7 ... B_0 - - 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)); - - /* 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; -} - -/**************************************************************************** -REMARKS: -Implements the ROR instruction and side effects. -****************************************************************************/ -u16 ror_word(u16 d, u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Implements the ROR instruction and side effects. -****************************************************************************/ -u32 ror_long(u32 d, u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -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); - 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; -} - -/**************************************************************************** -REMARKS: -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); - 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; -} - -/**************************************************************************** -REMARKS: -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); - 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 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); - 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; -} - -/**************************************************************************** -REMARKS: -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); - 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 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); - 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; -} - -/**************************************************************************** -REMARKS: -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; - } - 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; -} - -/**************************************************************************** -REMARKS: -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; - } - 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; -} - -/**************************************************************************** -REMARKS: -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; - } - 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); - 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); - 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); - 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); - 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; -} - -/**************************************************************************** -REMARKS: -Implements the SBB instruction and side effects. -****************************************************************************/ -u8 sbb_byte(u8 d, u8 s) -{ - u32 res; /* all operands in native machine order */ - u32 bc; - - 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; -} - -/**************************************************************************** -REMARKS: -Implements the SBB instruction and side effects. -****************************************************************************/ -u16 sbb_word(u16 d, u16 s) -{ - u32 res; /* all operands in native machine order */ - u32 bc; - - 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; -} - -/**************************************************************************** -REMARKS: -Implements the SBB instruction and side effects. -****************************************************************************/ -u32 sbb_long(u32 d, u32 s) -{ - u32 res; /* all operands in native machine order */ - u32 bc; - - if (ACCESS_FLAG(F_CF)) - res = d - s - 1; - else - 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; -} - -/**************************************************************************** -REMARKS: -Implements the SUB instruction and side effects. -****************************************************************************/ -u8 sub_byte(u8 d, u8 s) -{ - u32 res; /* all operands in native machine order */ - u32 bc; - - 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; -} - -/**************************************************************************** -REMARKS: -Implements the SUB instruction and side effects. -****************************************************************************/ -u16 sub_word(u16 d, u16 s) -{ - u32 res; /* all operands in native machine order */ - u32 bc; - - 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; -} - -/**************************************************************************** -REMARKS: -Implements the SUB instruction and side effects. -****************************************************************************/ -u32 sub_long(u32 d, u32 s) -{ - u32 res; /* all operands in native machine order */ - u32 bc; - - 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; -} - -/**************************************************************************** -REMARKS: -Implements the TEST instruction and side effects. -****************************************************************************/ -void test_byte(u8 d, u8 s) -{ - u32 res; /* all operands in native machine order */ - - res = d & s; - - CLEAR_FLAG(F_OF); - set_szp_flags_8((u8)res); - /* AF == dont care */ - CLEAR_FLAG(F_CF); -} - -/**************************************************************************** -REMARKS: -Implements the TEST instruction and side effects. -****************************************************************************/ -void test_word(u16 d, u16 s) -{ - u32 res; /* all operands in native machine order */ - - res = d & s; - - CLEAR_FLAG(F_OF); - set_szp_flags_16((u16)res); - /* AF == dont care */ - CLEAR_FLAG(F_CF); -} - -/**************************************************************************** -REMARKS: -Implements the TEST instruction and side effects. -****************************************************************************/ -void test_long(u32 d, u32 s) -{ - u32 res; /* all operands in native machine order */ - - res = d & s; - - CLEAR_FLAG(F_OF); - set_szp_flags_32(res); - /* AF == dont care */ - CLEAR_FLAG(F_CF); -} - -/**************************************************************************** -REMARKS: -Implements the XOR instruction and side effects. -****************************************************************************/ -u8 xor_byte(u8 d, u8 s) -{ - u8 res; /* all operands in native machine order */ - - res = d ^ s; - no_carry_byte_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the XOR instruction and side effects. -****************************************************************************/ -u16 xor_word(u16 d, u16 s) -{ - u16 res; /* all operands in native machine order */ - - res = d ^ s; - no_carry_word_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the XOR instruction and side effects. -****************************************************************************/ -u32 xor_long(u32 d, u32 s) -{ - u32 res; /* all operands in native machine order */ - - res = d ^ s; - no_carry_long_side_eff(res); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the IMUL instruction and side effects. -****************************************************************************/ -void imul_byte(u8 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); - } -} - -/**************************************************************************** -REMARKS: -Implements the IMUL instruction and side effects. -****************************************************************************/ -void imul_word(u16 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 == 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) -{ -#ifdef __HAS_LONG_LONG__ - s64 res = (s64)(s32)d * (s64)(s32)s; - - *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); - } -#endif -} - -/**************************************************************************** -REMARKS: -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 == 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); - } -} - -/**************************************************************************** -REMARKS: -Implements the MUL instruction and side effects. -****************************************************************************/ -void mul_byte(u8 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); - } -} - -/**************************************************************************** -REMARKS: -Implements the MUL instruction and side effects. -****************************************************************************/ -void mul_word(u16 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); - } -} - -/**************************************************************************** -REMARKS: -Implements the MUL instruction and side effects. -****************************************************************************/ -void mul_long(u32 s) -{ -#ifdef __HAS_LONG_LONG__ - u64 res = (u64)M.x86.R_EAX * s; - - 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; -#endif - if (M.x86.R_EDX == 0) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } -} - -/**************************************************************************** -REMARKS: -Implements the IDIV instruction and side effects. -****************************************************************************/ -void idiv_byte(u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Implements the IDIV instruction and side effects. -****************************************************************************/ -void idiv_word(u16 s) -{ - 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); - set_parity_flag(mod); - - M.x86.R_AX = (u16)div; - M.x86.R_DX = (u16)mod; -} - -/**************************************************************************** -REMARKS: -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; - } -#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; - -#endif - 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; -} - -/**************************************************************************** -REMARKS: -Implements the DIV instruction and side effects. -****************************************************************************/ -void div_byte(u8 s) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Implements the DIV instruction and side effects. -****************************************************************************/ -void div_word(u16 s) -{ - 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); - set_parity_flag(mod); - - M.x86.R_AX = (u16)div; - M.x86.R_DX = (u16)mod; -} - -/**************************************************************************** -REMARKS: -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; - } -#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; -#endif - 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; -} - -/**************************************************************************** -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 (E)CX is ZERO. */ - u32 count = ((M.x86.mode & SYSMODE_32BIT_REP) ? - 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_32BIT_REP) { - 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 (E)CX is ZERO. */ - u32 count = ((M.x86.mode & SYSMODE_32BIT_REP) ? - 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_32BIT_REP) { - 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 - -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); -} - -/**************************************************************************** -REMARKS: -Pushes a word onto the stack. - -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); -} - -/**************************************************************************** -REMARKS: -Pushes a long onto the stack. - -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); -} - -/**************************************************************************** -REMARKS: -Pops a word from the stack. - -NOTE: Do not inline this, as (*sys_rdX) is already inline! -****************************************************************************/ -u16 pop_word(void) -{ - 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; -} - -/**************************************************************************** -REMARKS: -Pops a long from the stack. - -NOTE: Do not inline this, as (*sys_rdX) is already inline! -****************************************************************************/ -u32 pop_long(void) -{ - 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; -} - -/**************************************************************************** -REMARKS: -CPUID takes EAX/ECX as inputs, writes EAX/EBX/ECX/EDX as output -****************************************************************************/ -void x86emu_cpuid(void) -{ - u32 feature = M.x86.R_EAX; - - switch (feature) { - case 0: - /* Regardless if we have real data from the hardware, the emulator - * will only support upto feature 1, which we set in register EAX. - * Registers EBX:EDX:ECX contain a string identifying the CPU. - */ - M.x86.R_EAX = 1; - /* EBX:EDX:ECX = "GenuineIntel" */ - M.x86.R_EBX = 0x756e6547; - M.x86.R_EDX = 0x49656e69; - M.x86.R_ECX = 0x6c65746e; - break; - case 1: - /* If we don't have x86 compatible hardware, we return values from an - * Intel 486dx4; which was one of the first processors to have CPUID. - */ - M.x86.R_EAX = 0x00000480; - M.x86.R_EBX = 0x00000000; - M.x86.R_ECX = 0x00000000; - M.x86.R_EDX = 0x00000002; /* VME */ - /* In the case that we have hardware CPUID instruction, we make sure - * that the features reported are limited to TSC and VME. - */ - M.x86.R_EDX &= 0x00000012; - break; - default: - /* Finally, we don't support any additional features. Most CPUs - * return all zeros when queried for invalid or unsupported feature - * numbers. - */ - M.x86.R_EAX = 0; - M.x86.R_EBX = 0; - M.x86.R_ECX = 0; - M.x86.R_EDX = 0; - break; - } -} - diff --git a/util/x86emu/x86emu/prim_ops.h b/util/x86emu/x86emu/prim_ops.h deleted file mode 100644 index 7230a71e5d..0000000000 --- a/util/x86emu/x86emu/prim_ops.h +++ /dev/null @@ -1,232 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for primitive operation functions. -* -****************************************************************************/ - -#ifndef __X86EMU_PRIM_OPS_H -#define __X86EMU_PRIM_OPS_H - -#include "prim_asm.h" - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -u16 aaa_word (u16 d); -u16 aas_word (u16 d); -u16 aad_word (u16 d); -u16 aam_word (u8 d); -u8 adc_byte (u8 d, u8 s); -u16 adc_word (u16 d, u16 s); -u32 adc_long (u32 d, u32 s); -u8 add_byte (u8 d, u8 s); -u16 add_word (u16 d, u16 s); -u32 add_long (u32 d, u32 s); -u8 and_byte (u8 d, u8 s); -u16 and_word (u16 d, u16 s); -u32 and_long (u32 d, u32 s); -u8 cmp_byte (u8 d, u8 s); -u16 cmp_word (u16 d, u16 s); -u32 cmp_long (u32 d, u32 s); -u8 daa_byte (u8 d); -u8 das_byte (u8 d); -u8 dec_byte (u8 d); -u16 dec_word (u16 d); -u32 dec_long (u32 d); -u8 inc_byte (u8 d); -u16 inc_word (u16 d); -u32 inc_long (u32 d); -u8 or_byte (u8 d, u8 s); -u16 or_word (u16 d, u16 s); -u32 or_long (u32 d, u32 s); -u8 neg_byte (u8 s); -u16 neg_word (u16 s); -u32 neg_long (u32 s); -u8 not_byte (u8 s); -u16 not_word (u16 s); -u32 not_long (u32 s); -u8 rcl_byte (u8 d, u8 s); -u16 rcl_word (u16 d, u8 s); -u32 rcl_long (u32 d, u8 s); -u8 rcr_byte (u8 d, u8 s); -u16 rcr_word (u16 d, u8 s); -u32 rcr_long (u32 d, u8 s); -u8 rol_byte (u8 d, u8 s); -u16 rol_word (u16 d, u8 s); -u32 rol_long (u32 d, u8 s); -u8 ror_byte (u8 d, u8 s); -u16 ror_word (u16 d, u8 s); -u32 ror_long (u32 d, u8 s); -u8 shl_byte (u8 d, u8 s); -u16 shl_word (u16 d, u8 s); -u32 shl_long (u32 d, u8 s); -u8 shr_byte (u8 d, u8 s); -u16 shr_word (u16 d, u8 s); -u32 shr_long (u32 d, u8 s); -u8 sar_byte (u8 d, u8 s); -u16 sar_word (u16 d, u8 s); -u32 sar_long (u32 d, u8 s); -u16 shld_word (u16 d, u16 fill, u8 s); -u32 shld_long (u32 d, u32 fill, u8 s); -u16 shrd_word (u16 d, u16 fill, u8 s); -u32 shrd_long (u32 d, u32 fill, u8 s); -u8 sbb_byte (u8 d, u8 s); -u16 sbb_word (u16 d, u16 s); -u32 sbb_long (u32 d, u32 s); -u8 sub_byte (u8 d, u8 s); -u16 sub_word (u16 d, u16 s); -u32 sub_long (u32 d, u32 s); -void test_byte (u8 d, u8 s); -void test_word (u16 d, u16 s); -void test_long (u32 d, u32 s); -u8 xor_byte (u8 d, u8 s); -u16 xor_word (u16 d, u16 s); -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 mul_byte (u8 s); -void mul_word (u16 s); -void mul_long (u32 s); -void idiv_byte (u8 s); -void idiv_word (u16 s); -void idiv_long (u32 s); -void div_byte (u8 s); -void div_word (u16 s); -void div_long (u32 s); -void ins (int size); -void outs (int size); -u16 mem_access_word (int addr); -void push_word (u16 w); -void push_long (u32 w); -u16 pop_word (void); -u32 pop_long (void); -void x86emu_cpuid (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 - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_PRIM_OPS_H */ diff --git a/util/x86emu/x86emu/sys.c b/util/x86emu/x86emu/sys.c deleted file mode 100644 index 957e0ca63b..0000000000 --- a/util/x86emu/x86emu/sys.c +++ /dev/null @@ -1,406 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes subroutines which are related to -* programmed I/O and memory access. Included in this module -* are default functions with limited usefulness. For real -* uses these functions will most likely be overriden by the -* user library. -* -****************************************************************************/ -/* $XFree86: xc/extras/x86emu/src/x86emu/sys.c,v 1.5 2000/08/23 22:10:01 tsi Exp $ */ - -#include <arch/io.h> -#include <x86emu/x86emu.h> -#include <x86emu/regs.h> -#include "debug.h" -#include "prim_ops.h" - -#ifdef IN_MODULE -#include "xf86_ansic.h" -#else -#include <string.h> -#endif -/*------------------------- Global Variables ------------------------------*/ - -X86EMU_sysEnv _X86EMU_env; /* Global emulator machine state */ -X86EMU_intrFuncs _X86EMU_intrTab[256]; - -/*----------------------------- Implementation ----------------------------*/ - -/* compute a pointer. This replaces code scattered all over the place! */ -static u8 *mem_ptr(u32 addr, int size) -{ - u8 *retaddr = 0; - - if (addr > M.mem_size - size) { - DB(printf("mem_ptr: address %#x out of range!\n", addr);) - HALT_SYS(); - } - if (addr < 0x200) { - //printf("%x:%x updating int vector 0x%x\n", - // M.x86.R_CS, M.x86.R_IP, addr >> 2); - } - retaddr = (u8 *) (M.mem_base + addr); - - return retaddr; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Byte value read from emulator memory. - -REMARKS: -Reads a byte value from the emulator memory. -****************************************************************************/ -u8 X86API rdb(u32 addr) -{ - u8 val; - u8 *ptr; - - ptr = mem_ptr(addr, 1); - - val = *ptr; - DB(if (DEBUG_MEM_TRACE()) - printf("%#08x 1 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Word value read from emulator memory. - -REMARKS: -Reads a word value from the emulator memory. -****************************************************************************/ -u16 X86API rdw(u32 addr) -{ - u16 val = 0; - u8 *ptr; - - ptr = mem_ptr(addr, 2); - val = *(u16 *) (ptr); - - DB(if (DEBUG_MEM_TRACE()) - printf("%#08x 2 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Long value read from emulator memory. -REMARKS: -Reads a long value from the emulator memory. -****************************************************************************/ -u32 X86API rdl(u32 addr) -{ - u32 val = 0; - u8 *ptr; - - ptr = mem_ptr(addr, 4); - val = *(u32 *) (ptr); - - DB(if (DEBUG_MEM_TRACE()) - printf("%#08x 4 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a byte value to emulator memory. -****************************************************************************/ -void X86API wrb(u32 addr, u8 val) -{ - u8 *ptr; - - ptr = mem_ptr(addr, 1); - *(u8 *) (ptr) = val; - - DB(if (DEBUG_MEM_TRACE()) - printf("%#08x 1 <- %#x\n", addr, val);) -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a word value to emulator memory. -****************************************************************************/ -void X86API wrw(u32 addr, u16 val) -{ - u8 *ptr; - - ptr = mem_ptr(addr, 2); - *(u16 *) (ptr) = val; - - DB(if (DEBUG_MEM_TRACE()) - printf("%#08x 2 <- %#x\n", addr, val);) -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a long value to emulator memory. -****************************************************************************/ -void X86API wrl(u32 addr, u32 val) -{ - u8 *ptr; - - ptr = mem_ptr(addr, 4); - *(u32 *) (ptr) = val; - - DB(if (DEBUG_MEM_TRACE()) - printf("%#08x 4 <- %#x\n", addr, val);) - - -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to read -RETURN: -0 -REMARKS: -Default PIO byte read function. Doesn't perform real inb. -****************************************************************************/ -static u8 X86API p_inb(X86EMU_pioAddr addr) -{ - DB(if (DEBUG_IO_TRACE()) - printf("inb %#04x \n", addr);) - return inb(addr); -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to read -RETURN: -0 -REMARKS: -Default PIO word read function. Doesn't perform real inw. -****************************************************************************/ -static u16 X86API p_inw(X86EMU_pioAddr addr) -{ - DB(if (DEBUG_IO_TRACE()) - printf("inw %#04x \n", addr);) - return inw(addr); -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to read -RETURN: -0 -REMARKS: -Default PIO long read function. Doesn't perform real inl. -****************************************************************************/ -static u32 X86API p_inl(X86EMU_pioAddr addr) -{ - DB(if (DEBUG_IO_TRACE()) - printf("inl %#04x \n", addr);) - return inl(addr); -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to write -val - Value to store -REMARKS: -Default PIO byte write function. Doesn't perform real outb. -****************************************************************************/ -static void X86API p_outb(X86EMU_pioAddr addr, u8 val) -{ - DB(if (DEBUG_IO_TRACE()) - printf("outb %#02x -> %#04x \n", val, addr);) - outb(val, addr); - return; -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to write -val - Value to store -REMARKS: -Default PIO word write function. Doesn't perform real outw. -****************************************************************************/ -static void X86API p_outw(X86EMU_pioAddr addr, u16 val) -{ - DB(if (DEBUG_IO_TRACE()) - printf("outw %#04x -> %#04x \n", val, addr);) - outw(val, addr); - return; -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to write -val - Value to store -REMARKS: -Default PIO ;ong write function. Doesn't perform real outl. -****************************************************************************/ -static void X86API p_outl(X86EMU_pioAddr addr, u32 val) -{ - DB(if (DEBUG_IO_TRACE()) - printf("outl %#08x -> %#04x \n", val, addr);) - - outl(val, addr); - return; -} - -/*------------------------- Global Variables ------------------------------*/ - -u8(X86APIP sys_rdb) (u32 addr) = rdb; -u16(X86APIP sys_rdw) (u32 addr) = rdw; -u32(X86APIP sys_rdl) (u32 addr) = rdl; -void (X86APIP sys_wrb) (u32 addr, u8 val) = wrb; -void (X86APIP sys_wrw) (u32 addr, u16 val) = wrw; -void (X86APIP sys_wrl) (u32 addr, u32 val) = wrl; -u8(X86APIP sys_inb) (X86EMU_pioAddr addr) = p_inb; -u16(X86APIP sys_inw) (X86EMU_pioAddr addr) = p_inw; -u32(X86APIP sys_inl) (X86EMU_pioAddr addr) = p_inl; -void (X86APIP sys_outb) (X86EMU_pioAddr addr, u8 val) = p_outb; -void (X86APIP sys_outw) (X86EMU_pioAddr addr, u16 val) = p_outw; -void (X86APIP sys_outl) (X86EMU_pioAddr addr, u32 val) = p_outl; - -/*----------------------------- Setup -------------------------------------*/ - -/**************************************************************************** -PARAMETERS: -funcs - New memory function pointers to make active - -REMARKS: -This function is used to set the pointers to functions which access -memory space, allowing the user application to override these functions -and hook them out as necessary for their application. -****************************************************************************/ -void X86EMU_setupMemFuncs(X86EMU_memFuncs * funcs) -{ - sys_rdb = funcs->rdb; - sys_rdw = funcs->rdw; - sys_rdl = funcs->rdl; - sys_wrb = funcs->wrb; - sys_wrw = funcs->wrw; - sys_wrl = funcs->wrl; -} - -/**************************************************************************** -PARAMETERS: -funcs - New programmed I/O function pointers to make active - -REMARKS: -This function is used to set the pointers to functions which access -I/O space, allowing the user application to override these functions -and hook them out as necessary for their application. -****************************************************************************/ -void X86EMU_setupPioFuncs(X86EMU_pioFuncs * funcs) -{ - sys_inb = funcs->inb; - sys_inw = funcs->inw; - sys_inl = funcs->inl; - sys_outb = funcs->outb; - sys_outw = funcs->outw; - sys_outl = funcs->outl; -} - -/**************************************************************************** -PARAMETERS: -funcs - New interrupt vector table to make active - -REMARKS: -This function is used to set the pointers to functions which handle -interrupt processing in the emulator, allowing the user application to -hook interrupts as necessary for their application. Any interrupts that -are not hooked by the user application, and reflected and handled internally -in the emulator via the interrupt vector table. This allows the application -to get control when the code being emulated executes specific software -interrupts. -****************************************************************************/ -void X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[]) -{ - int i; - - for (i = 0; i < 256; i++) - _X86EMU_intrTab[i] = NULL; - if (funcs) { - for (i = 0; i < 256; i++) - _X86EMU_intrTab[i] = funcs[i]; - } -} - -/**************************************************************************** -PARAMETERS: -int - New software interrupt to prepare for - -REMARKS: -This function is used to set up the emulator state to exceute a software -interrupt. This can be used by the user application code to allow an -interrupt to be hooked, examined and then reflected back to the emulator -so that the code in the emulator will continue processing the software -interrupt as per normal. This essentially allows system code to actively -hook and handle certain software interrupts as necessary. -****************************************************************************/ -void X86EMU_prepareForInt(int num) -{ - 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(num * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(num * 4); - M.x86.intr = 0; -} - -void X86EMU_setMemBase(void *base, size_t size) -{ - M.mem_base = (unsigned long) base; - M.mem_size = size; -} diff --git a/util/x86emu/x86emu/x86emui.h b/util/x86emu/x86emu/x86emui.h deleted file mode 100644 index d693e335f4..0000000000 --- a/util/x86emu/x86emu/x86emui.h +++ /dev/null @@ -1,103 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* 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. -* -****************************************************************************/ - -/* $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 - -/* If we are compiling in C++ mode, we can compile some functions as - * inline to increase performance (however the code size increases quite - * dramatically in this case). - */ - -#if defined(__cplusplus) && !defined(_NO_INLINE) -#define _INLINE inline -#else -#define _INLINE static -#endif - -/* Get rid of unused parameters in C++ compilation mode */ - -#ifdef __cplusplus -#define X86EMU_UNUSED(v) -#else -#define X86EMU_UNUSED(v) v -#endif - -#include "x86emu/x86emu.h" -#include "x86emu/regs.h" -#include "debug.h" -#include "decode.h" -#include "ops.h" -#include "prim_ops.h" -#include "fpu.h" -#include "x86emu/fpu_regs.h" - -#ifdef IN_MODULE -#include <xf86_ansic.h> -#else -#include <string.h> -#endif -/*--------------------------- Inline Functions ----------------------------*/ - -#ifdef __cplusplus -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 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 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); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_X86EMUI_H */ diff --git a/util/x86emu/yabel/Makefile.inc b/util/x86emu/yabel/Makefile.inc deleted file mode 100644 index f89de9b7dd..0000000000 --- a/util/x86emu/yabel/Makefile.inc +++ /dev/null @@ -1,9 +0,0 @@ -obj-y += biosemu.o -obj-y += debug.o -obj-y += device.o -obj-y += interrupt.o -obj-y += io.o -obj-y += mem.o -obj-y += pmm.o -obj-y += vbe.o -subdirs-y += compat diff --git a/util/x86emu/yabel/biosemu.c b/util/x86emu/yabel/biosemu.c deleted file mode 100644 index 294d81f279..0000000000 --- a/util/x86emu/yabel/biosemu.c +++ /dev/null @@ -1,386 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net> - * Copyright (c) 2010 coresystems GmbH - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#include <string.h> -#include <types.h> - -#include "debug.h" - -#include <x86emu/x86emu.h> -#include <x86emu/regs.h> -#include "../x86emu/prim_ops.h" - -#include "biosemu.h" -#include "io.h" -#include "mem.h" -#include "interrupt.h" -#include "device.h" -#include "pmm.h" - -#include <device/device.h> -#include "compat/rtas.h" - -static X86EMU_memFuncs my_mem_funcs = { - my_rdb, my_rdw, my_rdl, - my_wrb, my_wrw, my_wrl -}; - -static X86EMU_pioFuncs my_pio_funcs = { - my_inb, my_inw, my_inl, - my_outb, my_outw, my_outl -}; - -/* interrupt function override array (see biosemu.h) */ -yabel_handleIntFunc yabel_intFuncArray[256]; - -/* main entry into YABEL biosemu, arguments are: - * *biosmem = pointer to virtual memory - * biosmem_size = size of the virtual memory - * *dev = pointer to the device to be initialised - * rom_addr = address of the OptionROM to be executed, if this is = 0, YABEL - * will look for an ExpansionROM BAR and use the code from there. - */ -u32 -biosemu(u8 *biosmem, u32 biosmem_size, struct device * dev, unsigned long rom_addr) -{ - u8 *rom_image; - int i = 0; -#if CONFIG_X86EMU_DEBUG - debug_flags = 0; -#if defined(CONFIG_X86EMU_DEBUG_JMP) && CONFIG_X86EMU_DEBUG_JMP - debug_flags |= DEBUG_JMP; -#endif -#if defined(CONFIG_X86EMU_DEBUG_TRACE) && CONFIG_X86EMU_DEBUG_TRACE - debug_flags |= DEBUG_TRACE_X86EMU; -#endif -#if defined(CONFIG_X86EMU_DEBUG_PNP) && CONFIG_X86EMU_DEBUG_PNP - debug_flags |= DEBUG_PNP; -#endif -#if defined(CONFIG_X86EMU_DEBUG_DISK) && CONFIG_X86EMU_DEBUG_DISK - debug_flags |= DEBUG_DISK; -#endif -#if defined(CONFIG_X86EMU_DEBUG_PMM) && CONFIG_X86EMU_DEBUG_PMM - debug_flags |= DEBUG_PMM; -#endif -#if defined(CONFIG_X86EMU_DEBUG_VBE) && CONFIG_X86EMU_DEBUG_VBE - debug_flags |= DEBUG_VBE; -#endif -#if defined(CONFIG_X86EMU_DEBUG_INT10) && CONFIG_X86EMU_DEBUG_INT10 - debug_flags |= DEBUG_PRINT_INT10; -#endif -#if defined(CONFIG_X86EMU_DEBUG_INTERRUPTS) && CONFIG_X86EMU_DEBUG_INTERRUPTS - debug_flags |= DEBUG_INTR; -#endif -#if defined(CONFIG_X86EMU_DEBUG_CHECK_VMEM_ACCESS) && CONFIG_X86EMU_DEBUG_CHECK_VMEM_ACCESS - debug_flags |= DEBUG_CHECK_VMEM_ACCESS; -#endif -#if defined(CONFIG_X86EMU_DEBUG_MEM) && CONFIG_X86EMU_DEBUG_MEM - debug_flags |= DEBUG_MEM; -#endif -#if defined(CONFIG_X86EMU_DEBUG_IO) && CONFIG_X86EMU_DEBUG_IO - debug_flags |= DEBUG_IO; -#endif - -#endif - if (biosmem_size < MIN_REQUIRED_VMEM_SIZE) { - printf("Error: Not enough virtual memory: %x, required: %x!\n", - biosmem_size, MIN_REQUIRED_VMEM_SIZE); - return -1; - } - if (biosemu_dev_init(dev) != 0) { - printf("Error initializing device!\n"); - return -1; - } - if (biosemu_dev_check_exprom(rom_addr) != 0) { - printf("Error: Device Expansion ROM invalid!\n"); - return -1; - } - rom_image = (u8 *) bios_device.img_addr; - DEBUG_PRINTF("executing rom_image from %p\n", rom_image); - DEBUG_PRINTF("biosmem at %p\n", biosmem); - - DEBUG_PRINTF("Image Size: %d\n", bios_device.img_size); - - // in case we jump somewhere unexpected, or execution is finished, - // fill the biosmem with hlt instructions (0xf4) - // But we have to be careful: If biosmem is 0x00000000 we're running - // in the lower 1MB and we must not wipe memory like that. - if (biosmem) { - DEBUG_PRINTF("Clearing biosmem\n"); - memset(biosmem, 0xf4, biosmem_size); - } - - X86EMU_setMemBase(biosmem, biosmem_size); - - DEBUG_PRINTF("membase set: %08x, size: %08x\n", (int) M.mem_base, - (int) M.mem_size); - - // copy expansion ROM image to segment OPTION_ROM_CODE_SEGMENT - // NOTE: this sometimes fails, some bytes are 0x00... so we compare - // after copying and do some retries... - u8 *mem_img = biosmem + (OPTION_ROM_CODE_SEGMENT << 4); - u8 copy_count = 0; - u8 cmp_result = 0; - do { -#if 0 - set_ci(); - memcpy(mem_img, rom_image, len); - clr_ci(); -#else - // memcpy fails... try copy byte-by-byte with set/clr_ci - u8 c; - for (i = 0; i < bios_device.img_size; i++) { - set_ci(); - c = *(rom_image + i); - if (c != *(rom_image + i)) { - clr_ci(); - printf("Copy failed at: %x/%x\n", i, - bios_device.img_size); - printf("rom_image(%x): %x, mem_img(%x): %x\n", - i, *(rom_image + i), i, *(mem_img + i)); - break; - } - clr_ci(); - *(mem_img + i) = c; - } -#endif - copy_count++; - set_ci(); - cmp_result = memcmp(mem_img, rom_image, bios_device.img_size); - clr_ci(); - } - while ((copy_count < 5) && (cmp_result != 0)); - if (cmp_result != 0) { - printf - ("\nCopying Expansion ROM Image to Memory failed after %d retries! (%x)\n", - copy_count, cmp_result); - dump(rom_image, 0x20); - dump(mem_img, 0x20); - return 0; - } - // setup default Interrupt Vectors - // some expansion ROMs seem to check for these addresses.. - // each handler is only an IRET (0xCF) instruction - // ROM BIOS Int 10 Handler F000:F065 - my_wrl(0x10 * 4, 0xf000f065); - my_wrb(0x000ff065, 0xcf); - // ROM BIOS Int 11 Handler F000:F84D - my_wrl(0x11 * 4, 0xf000f84d); - my_wrb(0x000ff84d, 0xcf); - // ROM BIOS Int 12 Handler F000:F841 - my_wrl(0x12 * 4, 0xf000f841); - my_wrb(0x000ff841, 0xcf); - // ROM BIOS Int 13 Handler F000:EC59 - my_wrl(0x13 * 4, 0xf000ec59); - my_wrb(0x000fec59, 0xcf); - // ROM BIOS Int 14 Handler F000:E739 - my_wrl(0x14 * 4, 0xf000e739); - my_wrb(0x000fe739, 0xcf); - // ROM BIOS Int 15 Handler F000:F859 - my_wrl(0x15 * 4, 0xf000f859); - my_wrb(0x000ff859, 0xcf); - // ROM BIOS Int 16 Handler F000:E82E - my_wrl(0x16 * 4, 0xf000e82e); - my_wrb(0x000fe82e, 0xcf); - // ROM BIOS Int 17 Handler F000:EFD2 - my_wrl(0x17 * 4, 0xf000efd2); - my_wrb(0x000fefd2, 0xcf); - // ROM BIOS Int 1A Handler F000:FE6E - my_wrl(0x1a * 4, 0xf000fe6e); - my_wrb(0x000ffe6e, 0xcf); - - // setup BIOS Data Area (0000:04xx, or 0040:00xx) - // we currently 0 this area, meaning "we dont have - // any hardware" :-) no serial/parallel ports, floppys, ... - memset(biosmem + 0x400, 0x0, 0x100); - - // at offset 13h in BDA is the memory size in kbytes - my_wrw(0x413, biosmem_size / 1024); - // at offset 0eh in BDA is the segment of the Extended BIOS Data Area - // see setup further down - my_wrw(0x40e, INITIAL_EBDA_SEGMENT); - // TODO: setup BDA Video Data ( offset 49h-66h) - // e.g. to store video mode, cursor position, ... - // in int10 (done) handler and VBE Functions - - // TODO: setup BDA Fixed Disk Data - // 74h: Fixed Disk Last Operation Status - // 75h: Fixed Disk Number of Disk Drives - - // TODO: check BDA for further needed data... - - //setup Extended BIOS Data Area - //we currently 0 this area - memset(biosmem + (INITIAL_EBDA_SEGMENT << 4), 0, INITIAL_EBDA_SIZE); - // at offset 0h in EBDA is the size of the EBDA in KB - my_wrw((INITIAL_EBDA_SEGMENT << 4) + 0x0, INITIAL_EBDA_SIZE / 1024); - //TODO: check for further needed EBDA data... - - // setup original ROM BIOS Area (F000:xxxx) - const char *date = "06/11/99"; - for (i = 0; date[i]; i++) - my_wrb(0xffff5 + i, date[i]); - // set up eisa ident string - const char *ident = "PCI_ISA"; - for (i = 0; ident[i]; i++) - my_wrb(0xfffd9 + i, ident[i]); - - // write system model id for IBM-AT - // according to "Ralf Browns Interrupt List" Int15 AH=C0 Table 515, - // model FC is the original AT and also used in all DOSEMU Versions. - my_wrb(0xFFFFE, 0xfc); - - //setup interrupt handler - X86EMU_intrFuncs intrFuncs[256]; - for (i = 0; i < 256; i++) - intrFuncs[i] = handleInterrupt; - X86EMU_setupIntrFuncs(intrFuncs); - X86EMU_setupPioFuncs(&my_pio_funcs); - X86EMU_setupMemFuncs(&my_mem_funcs); - - //setup PMM struct in BIOS_DATA_SEGMENT, offset 0x0 - u8 pmm_length = pmm_setup(BIOS_DATA_SEGMENT, 0x0); - if (pmm_length <= 0) { - printf ("\nYABEL: Warning: PMM Area could not be setup. PMM not available (%x)\n", - pmm_length); - return 0; - } else { - CHECK_DBG(DEBUG_PMM) { - /* test the PMM */ - pmm_test(); - /* and clean it again by calling pmm_setup... */ - pmm_length = pmm_setup(BIOS_DATA_SEGMENT, 0x0); - } - } - // setup the CPU - M.x86.R_AH = bios_device.bus; - M.x86.R_AL = bios_device.devfn; - M.x86.R_DX = 0x80; - M.x86.R_EIP = 3; - M.x86.R_CS = OPTION_ROM_CODE_SEGMENT; - - // Initialize stack and data segment - M.x86.R_SS = STACK_SEGMENT; - M.x86.R_SP = STACK_START_OFFSET; - M.x86.R_DS = DATA_SEGMENT; - - // push a HLT instruction and a pointer to it onto the stack - // any return will pop the pointer and jump to the HLT, thus - // exiting (more or less) cleanly - push_word(0xf4f4); // F4=HLT - push_word(M.x86.R_SS); - push_word(M.x86.R_SP + 2); - - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); -#if 0 - } else { - M.x86.debug |= DEBUG_SAVE_IP_CS_F; - M.x86.debug |= DEBUG_DECODE_F; - M.x86.debug |= DEBUG_DECODE_NOPRINT_F; -#endif - } - CHECK_DBG(DEBUG_JMP) { - M.x86.debug |= DEBUG_TRACEJMP_F; - M.x86.debug |= DEBUG_TRACEJMP_REGS_F; - M.x86.debug |= DEBUG_TRACECALL_F; - M.x86.debug |= DEBUG_TRACECALL_REGS_F; - } - - DEBUG_PRINTF("Executing Initialization Vector...\n"); - X86EMU_exec(); - DEBUG_PRINTF("done\n"); - - /* According to the PNP BIOS Spec, Option ROMs should upon exit, return - * some boot device status in AX (see PNP BIOS Spec Section 3.3 - */ - DEBUG_PRINTF_CS_IP("Option ROM Exit Status: %04x\n", M.x86.R_AX); -#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG - DEBUG_PRINTF("Exit Status Decode:\n"); - if (M.x86.R_AX & 0x100) { // bit 8 - DEBUG_PRINTF - (" IPL Device supporting INT 13h Block Device Format:\n"); - switch (((M.x86.R_AX >> 4) & 0x3)) { // bits 5:4 - case 0: - DEBUG_PRINTF(" No IPL Device attached\n"); - break; - case 1: - DEBUG_PRINTF(" IPL Device status unknown\n"); - break; - case 2: - DEBUG_PRINTF(" IPL Device attached\n"); - break; - case 3: - DEBUG_PRINTF(" IPL Device status RESERVED!!\n"); - break; - } - } - if (M.x86.R_AX & 0x80) { // bit 7 - DEBUG_PRINTF - (" Output Device supporting INT 10h Character Output:\n"); - switch (((M.x86.R_AX >> 4) & 0x3)) { // bits 5:4 - case 0: - DEBUG_PRINTF(" No Display Device attached\n"); - break; - case 1: - DEBUG_PRINTF(" Display Device status unknown\n"); - break; - case 2: - DEBUG_PRINTF(" Display Device attached\n"); - break; - case 3: - DEBUG_PRINTF(" Display Device status RESERVED!!\n"); - break; - } - } - if (M.x86.R_AX & 0x40) { // bit 6 - DEBUG_PRINTF - (" Input Device supporting INT 9h Character Input:\n"); - switch (((M.x86.R_AX >> 4) & 0x3)) { // bits 5:4 - case 0: - DEBUG_PRINTF(" No Input Device attached\n"); - break; - case 1: - DEBUG_PRINTF(" Input Device status unknown\n"); - break; - case 2: - DEBUG_PRINTF(" Input Device attached\n"); - break; - case 3: - DEBUG_PRINTF(" Input Device status RESERVED!!\n"); - break; - } - } -#endif - /* Check whether the stack is "clean" i.e. containing the HLT - * instruction we pushed before executing and pointing to the original - * stack address... indicating that the initialization probably was - * successful - */ - if ((pop_word() == 0xf4f4) && (M.x86.R_SS == STACK_SEGMENT) - && (M.x86.R_SP == STACK_START_OFFSET)) { - DEBUG_PRINTF("Stack is clean, initialization successfull!\n"); - } else { - printf("Stack unclean, initialization probably NOT COMPLETE!\n"); - DEBUG_PRINTF("SS:SP = %04x:%04x, expected: %04x:%04x\n", - M.x86.R_SS, M.x86.R_SP, STACK_SEGMENT, - STACK_START_OFFSET); - } - - // TODO: according to the BIOS Boot Spec initializations may be ended using INT18h and setting - // the status. - // We need to implement INT18 accordingly, pseudo code is in specsbbs101.pdf page 30 - // (also for Int19) - return 0; -} diff --git a/util/x86emu/yabel/biosemu.h b/util/x86emu/yabel/biosemu.h deleted file mode 100644 index 09ace729ec..0000000000 --- a/util/x86emu/yabel/biosemu.h +++ /dev/null @@ -1,52 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#ifndef _BIOSEMU_BIOSEMU_H_ -#define _BIOSEMU_BIOSEMU_H_ - -#define MIN_REQUIRED_VMEM_SIZE 0x100000 // 1MB - -//define default segments for different components -#define STACK_SEGMENT 0x1000 //1000:xxxx -#define STACK_START_OFFSET 0xfffe - -#define DATA_SEGMENT 0x2000 -#define VBE_SEGMENT 0x3000 - -#define PMM_CONV_SEGMENT 0x4000 // 4000:xxxx is PMM conventional memory area, extended memory area - // will be anything beyound MIN_REQUIRED_MEMORY_SIZE -#define PNP_DATA_SEGMENT 0x5000 - -#define OPTION_ROM_CODE_SEGMENT 0xc000 - -#define BIOS_DATA_SEGMENT 0xF000 -// both EBDA values are _initial_ values, they may (and will be) changed at runtime by option ROMs!! -#define INITIAL_EBDA_SEGMENT 0xF600 // segment of the Extended BIOS Data Area -#define INITIAL_EBDA_SIZE 0x400 // size of the EBDA (at least 1KB!! since size is stored in KB!) - -#define PMM_INT_NUM 0xFC // we misuse INT FC for PMM functionality, at the PMM Entry Point - // Address, there will only be a call to this INT and a RETF -#define PNP_INT_NUM 0xFD - -/* array of funtion pointers to override generic interrupt handlers - * a YABEL caller can add functions to this array before calling YABEL - * if a interrupt occurs, YABEL checks wether a function is set in - * this array and only runs the generic interrupt handler code, if - * the function pointer is NULL */ -typedef int (* yabel_handleIntFunc)(void); -extern yabel_handleIntFunc yabel_intFuncArray[256]; - -struct device; - -u32 biosemu(u8 *biosmem, u32 biosmem_size, struct device *dev, unsigned long rom_addr); -#endif diff --git a/util/x86emu/yabel/compat/Makefile.inc b/util/x86emu/yabel/compat/Makefile.inc deleted file mode 100644 index 00080f5406..0000000000 --- a/util/x86emu/yabel/compat/Makefile.inc +++ /dev/null @@ -1 +0,0 @@ -obj-y += functions.o diff --git a/util/x86emu/yabel/compat/functions.c b/util/x86emu/yabel/compat/functions.c deleted file mode 100644 index 6367fb025d..0000000000 --- a/util/x86emu/yabel/compat/functions.c +++ /dev/null @@ -1,69 +0,0 @@ -/**************************************************************************** - * YABEL BIOS Emulator - * - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Copyright (c) 2008 Pattrick Hueper <phueper@hueper.net> - ****************************************************************************/ - -/* this file contains functions provided by SLOF, that the current biosemu implementation needs - * they should go away inthe future... - */ - -#include <types.h> -#include <string.h> -#include <device/device.h> -#include "../debug.h" -#include "../biosemu.h" -#include "../compat/time.h" - -#define VMEM_SIZE (1024 * 1024) /* 1 MB */ - -#if !defined(CONFIG_YABEL_DIRECTHW) || (!CONFIG_YABEL_DIRECTHW) -#ifdef CONFIG_YABEL_VIRTMEM_LOCATION -u8* vmem = (u8 *) CONFIG_YABEL_VIRTMEM_LOCATION; -#else -u8* vmem = (u8 *) (16*1024*1024); /* default to 16MB */ -#endif -#else -u8* vmem = NULL; -#endif - -#if CONFIG_BOOTSPLASH -void vbe_set_graphics(void); -#endif - -void run_bios(struct device * dev, unsigned long addr) -{ - - biosemu(vmem, VMEM_SIZE, dev, addr); - -#if CONFIG_BOOTSPLASH - vbe_set_graphics(); -#endif - - if (vmem != NULL) { - printf("Copying legacy memory from %p to the lower 1MB\n", vmem); - memcpy((void *)0x00000, vmem + 0x00000, 0x400); // IVT - memcpy((void *)0x00400, vmem + 0x00400, 0x100); // BDA - memcpy((void *)0xc0000, vmem + 0xc0000, 0x10000); // VGA OPROM - } -} - -unsigned long tb_freq = 0; - -u64 get_time(void) -{ - u64 act; - u32 eax, edx; - - __asm__ __volatile__( - "rdtsc" - : "=a"(eax), "=d"(edx) - : /* no inputs, no clobber */); - act = ((u64) edx << 32) | eax; - return act; -} diff --git a/util/x86emu/yabel/compat/of.h b/util/x86emu/yabel/compat/of.h deleted file mode 100644 index 907139951f..0000000000 --- a/util/x86emu/yabel/compat/of.h +++ /dev/null @@ -1,55 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - - -#ifndef OF_H -#define OF_H -#define p32 int -#define p32cast (int) (unsigned long) (void*) - -#define phandle_t p32 -#define ihandle_t p32 - -typedef struct -{ - unsigned int serv; - int nargs; - int nrets; - unsigned int args[16]; -} of_arg_t; - - -phandle_t of_finddevice (const char *); -phandle_t of_peer (phandle_t); -phandle_t of_child (phandle_t); -phandle_t of_parent (phandle_t); -int of_getprop (phandle_t, const char *, void *, int); -void * of_call_method_3 (const char *, ihandle_t, int); - - -ihandle_t of_open (const char *); -void of_close(ihandle_t); -int of_read (ihandle_t , void*, int); -int of_write (ihandle_t, void*, int); -int of_seek (ihandle_t, int, int); - -void * of_claim(void *, unsigned int , unsigned int ); -void of_release(void *, unsigned int ); - -int of_yield(void); -void * of_set_callback(void *); - -int vpd_read(unsigned int , unsigned int , char *); -int vpd_write(unsigned int , unsigned int , char *); -int write_mm_log(char *, unsigned int , unsigned short ); - -#endif diff --git a/util/x86emu/yabel/compat/rtas.h b/util/x86emu/yabel/compat/rtas.h deleted file mode 100644 index 25cabf4d6a..0000000000 --- a/util/x86emu/yabel/compat/rtas.h +++ /dev/null @@ -1,45 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - - -#ifndef RTAS_H -#define RTAS_H - -#include "of.h" - -typedef struct dtime { - unsigned int year; - unsigned int month; - unsigned int day; - unsigned int hour; - unsigned int minute; - unsigned int second; - unsigned int nano; -} dtime; - -typedef void (*thread_t) (int); - -int rtas_token(const char *); -int rtas_call(int, int, int, int *, ...); -void rtas_init(void); -int rtas_pci_config_read (long long, int, int, int, int); -int rtas_pci_config_write (long long, int, int, int, int, int); -int rtas_set_time_of_day(dtime *); -int rtas_get_time_of_day(dtime *); -int rtas_ibm_update_flash_64(long long, long long); -int rtas_ibm_update_flash_64_and_reboot(long long, long long); -int rtas_system_reboot(void); -int rtas_start_cpu (int, thread_t, int); -int rtas_stop_self (void); -int rtas_ibm_manage_flash(int); - -#endif diff --git a/util/x86emu/yabel/compat/time.h b/util/x86emu/yabel/compat/time.h deleted file mode 100644 index 6f7099bd86..0000000000 --- a/util/x86emu/yabel/compat/time.h +++ /dev/null @@ -1,18 +0,0 @@ -/**************************************************************************** - * YABEL BIOS Emulator - * - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Copyright (c) 2008 Pattrick Hueper <phueper@hueper.net> - ****************************************************************************/ - -#ifndef _BIOSEMU_COMPAT_TIME_H -#define _BIOSEMU_COMPAT_TIME_H - -/* TODO: check how this works in x86 */ -extern unsigned long tb_freq; -u64 get_time(void); -#endif diff --git a/util/x86emu/yabel/debug.c b/util/x86emu/yabel/debug.c deleted file mode 100644 index 7cda8af0b1..0000000000 --- a/util/x86emu/yabel/debug.c +++ /dev/null @@ -1,54 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#include "debug.h" - -u32 debug_flags = 0; - -void -dump(u8 * addr, u32 len) -{ - printf("\n%s(%p, %x):\n", __func__, addr, len); - while (len) { - unsigned int tmpCnt = len; - unsigned char x; - if (tmpCnt > 8) - tmpCnt = 8; - printf("\n%p: ", addr); - // print hex - while (tmpCnt--) { - set_ci(); - x = *addr++; - clr_ci(); - printf("%02x ", x); - } - tmpCnt = len; - if (tmpCnt > 8) - tmpCnt = 8; - len -= tmpCnt; - //reset addr ptr to print ascii - addr = addr - tmpCnt; - // print ascii - while (tmpCnt--) { - set_ci(); - x = *addr++; - clr_ci(); - if ((x < 32) || (x >= 127)) { - //non-printable char - x = '.'; - } - printf("%c", x); - } - } - printf("\n"); -} diff --git a/util/x86emu/yabel/debug.h b/util/x86emu/yabel/debug.h deleted file mode 100644 index d02930809d..0000000000 --- a/util/x86emu/yabel/debug.h +++ /dev/null @@ -1,105 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ -#ifndef _BIOSEMU_DEBUG_H_ -#define _BIOSEMU_DEBUG_H_ - -#include <types.h> - -extern u32 debug_flags; -// from x86emu...needed for debugging -extern void x86emu_dump_xregs(void); - -/* printf is not available in coreboot... use printk */ -#include <console/console.h> -#include "x86emu/x86emu.h" -#define printf(x...) printk(BIOS_DEBUG, x) - -/* PH: empty versions of set/clr_ci - * TODO: remove! */ -static inline void clr_ci(void) {}; -static inline void set_ci(void) {}; - -/* debug_flags is a binary switch that allows you to select the following items - * to debug. 1=on 0=off. After you decide what you want to debug create the - * binary value, convert to hex and set the option. These options can be - * selected in Kconfig. - * - * |-DEBUG_JMP - print info about JMP and RETF opcodes from x86emu - * ||-DEBUG_TRACE_X86EMU - print _all_ opcodes that are executed by x86emu (WARNING: this will produce a LOT of output) - * |||-Currently unused - * ||||-Currently unused - * |||||-Currently unused - * ||||||-DEBUG_PNP - Print Plug And Play access made by option rom - * |||||||-DEBUG_DISK - Print Disk I/O related messages, currently unused - * ||||||||-DEBUG_PMM - Print messages related to POST Memory Manager (PMM) - * |||||||||-DEBUG_VBE - Print messages related to VESA BIOS Extension (VBE) functions - * ||||||||||-DEBUG_PRINT_INT10 - let INT10 (i.e. character output) calls print messages to Debug output - * |||||||||||-DEBUG_INTR - Print messages related to interrupt handling - * ||||||||||||-DEBUG_CHECK_VMEM_ACCESS - Print messages related to accesse to certain areas of the virtual Memory (e.g. BDA (BIOS Data Area) or Interrupt Vectors) - * |||||||||||||-DEBUG_MEM - Print memory access made by option rom (NOTE: this also includes accesses to fetch instructions) - * ||||||||||||||-DEBUG_IO - Print I/O access made by option rom - * 11000111111111 - Max Binary Value, Debug All (WARNING: - This could run for hours) - */ - -#define DEBUG_IO 0x1 -#define DEBUG_MEM 0x2 -// set this to print messages for certain virtual memory accesses (Interrupt Vectors, ...) -#define DEBUG_CHECK_VMEM_ACCESS 0x4 -#define DEBUG_INTR 0x8 -#define DEBUG_PRINT_INT10 0x10 // set to have the INT10 routine print characters -#define DEBUG_VBE 0x20 -#define DEBUG_PMM 0x40 -#define DEBUG_DISK 0x80 -#define DEBUG_PNP 0x100 - -#define DEBUG_TRACE_X86EMU 0x1000 -// set to enable tracing of JMPs in x86emu -#define DEBUG_JMP 0x2000 - -#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG - -#define CHECK_DBG(_flag) if (debug_flags & _flag) - -#define DEBUG_PRINTF(_x...) printf(_x); -// prints the CS:IP before the printout, NOTE: actually its CS:IP of the _next_ instruction -// to be executed, since the x86emu advances CS:IP _before_ actually executing an instruction -#define DEBUG_PRINTF_CS_IP(_x...) DEBUG_PRINTF("%x:%x ", M.x86.R_CS, M.x86.R_IP); DEBUG_PRINTF(_x); - -#define DEBUG_PRINTF_IO(_x...) CHECK_DBG(DEBUG_IO) { DEBUG_PRINTF_CS_IP(_x) } -#define DEBUG_PRINTF_MEM(_x...) CHECK_DBG(DEBUG_MEM) { DEBUG_PRINTF_CS_IP(_x) } -#define DEBUG_PRINTF_INTR(_x...) CHECK_DBG(DEBUG_INTR) { DEBUG_PRINTF_CS_IP(_x) } -#define DEBUG_PRINTF_VBE(_x...) CHECK_DBG(DEBUG_VBE) { DEBUG_PRINTF_CS_IP(_x) } -#define DEBUG_PRINTF_PMM(_x...) CHECK_DBG(DEBUG_PMM) { DEBUG_PRINTF_CS_IP(_x) } -#define DEBUG_PRINTF_DISK(_x...) CHECK_DBG(DEBUG_DISK) { DEBUG_PRINTF_CS_IP(_x) } -#define DEBUG_PRINTF_PNP(_x...) CHECK_DBG(DEBUG_PNP) { DEBUG_PRINTF_CS_IP(_x) } - -#else - -#define CHECK_DBG(_flag) if (0) - -#define DEBUG_PRINTF(_x...) -#define DEBUG_PRINTF_CS_IP(_x...) - -#define DEBUG_PRINTF_IO(_x...) -#define DEBUG_PRINTF_MEM(_x...) -#define DEBUG_PRINTF_INTR(_x...) -#define DEBUG_PRINTF_VBE(_x...) -#define DEBUG_PRINTF_PMM(_x...) -#define DEBUG_PRINTF_DISK(_x...) -#define DEBUG_PRINTF_PNP(_x...) - -#endif //DEBUG - -void dump(u8 * addr, u32 len); - -#endif diff --git a/util/x86emu/yabel/device.c b/util/x86emu/yabel/device.c deleted file mode 100644 index 7e71a45e97..0000000000 --- a/util/x86emu/yabel/device.c +++ /dev/null @@ -1,453 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - - -#include "device.h" -#include "compat/rtas.h" -#include <string.h> -#include "debug.h" - -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ops.h> -#include <device/resource.h> - -/* the device we are working with... */ -biosemu_device_t bios_device; -//max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges -translate_address_t translate_address_array[11]; -u8 taa_last_entry; - -typedef struct { - u8 info; - u8 bus; - u8 devfn; - u8 cfg_space_offset; - u64 address; - u64 size; -} __attribute__ ((__packed__)) assigned_address_t; - -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL -/* coreboot version */ - -static void -biosemu_dev_get_addr_info(void) -{ - int taa_index = 0; - int i = 0; - struct resource *r; - u8 bus = bios_device.dev->bus->link; - u16 devfn = bios_device.dev->path.pci.devfn; - - bios_device.bus = bus; - bios_device.devfn = devfn; - - DEBUG_PRINTF("bus: %x, devfn: %x\n", bus, devfn); - for (i = 0; i < bios_device.dev->resources; i++) { - r = &bios_device.dev->resource[i]; - translate_address_array[taa_index].info = r->flags; - translate_address_array[taa_index].bus = bus; - translate_address_array[taa_index].devfn = devfn; - translate_address_array[taa_index].cfg_space_offset = - r->index; - translate_address_array[taa_index].address = r->base; - translate_address_array[taa_index].size = r->size; - /* dont translate addresses... all addresses are 1:1 */ - translate_address_array[taa_index].address_offset = 0; - taa_index++; - } - /* Expansion ROM */ - translate_address_array[taa_index].info = IORESOURCE_MEM | IORESOURCE_READONLY; - translate_address_array[taa_index].bus = bus; - translate_address_array[taa_index].devfn = devfn; - translate_address_array[taa_index].cfg_space_offset = 0x30; - translate_address_array[taa_index].address = bios_device.img_addr; - translate_address_array[taa_index].size = 0; /* TODO: do we need the size? */ - /* dont translate addresses... all addresses are 1:1 */ - translate_address_array[taa_index].address_offset = 0; - taa_index++; - /* legacy ranges if its a VGA card... */ - if ((bios_device.dev->class & 0xFF0000) == 0x030000) { - DEBUG_PRINTF("%s: VGA device found, adding legacy resources... \n", __func__); - /* I/O 0x3B0-0x3BB */ - translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_IO; - translate_address_array[taa_index].bus = bus; - translate_address_array[taa_index].devfn = devfn; - translate_address_array[taa_index].cfg_space_offset = 0; - translate_address_array[taa_index].address = 0x3b0; - translate_address_array[taa_index].size = 0xc; - /* dont translate addresses... all addresses are 1:1 */ - translate_address_array[taa_index].address_offset = 0; - taa_index++; - /* I/O 0x3C0-0x3DF */ - translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_IO; - translate_address_array[taa_index].bus = bus; - translate_address_array[taa_index].devfn = devfn; - translate_address_array[taa_index].cfg_space_offset = 0; - translate_address_array[taa_index].address = 0x3c0; - translate_address_array[taa_index].size = 0x20; - /* dont translate addresses... all addresses are 1:1 */ - translate_address_array[taa_index].address_offset = 0; - taa_index++; - /* Mem 0xA0000-0xBFFFF */ - translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_MEM; - translate_address_array[taa_index].bus = bus; - translate_address_array[taa_index].devfn = devfn; - translate_address_array[taa_index].cfg_space_offset = 0; - translate_address_array[taa_index].address = 0xa0000; - translate_address_array[taa_index].size = 0x20000; - /* dont translate addresses... all addresses are 1:1 */ - translate_address_array[taa_index].address_offset = 0; - taa_index++; - } - // store last entry index of translate_address_array - taa_last_entry = taa_index - 1; -#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG - //dump translate_address_array - printf("translate_address_array: \n"); - translate_address_t ta; - for (i = 0; i <= taa_last_entry; i++) { - ta = translate_address_array[i]; - printf - ("%d: info: %08lx bus: %02x devfn: %02x cfg_space_offset: %02x\n\taddr: %016llx\n\toffs: %016llx\n\tsize: %016llx\n", - i, ta.info, ta.bus, ta.devfn, ta.cfg_space_offset, - ta.address, ta.address_offset, ta.size); - } -#endif -} -#else -// use translate_address_dev and get_puid from net-snk's net_support.c -void translate_address_dev(u64 *, phandle_t); -u64 get_puid(phandle_t node); - - -// scan all adresses assigned to the device ("assigned-addresses" and "reg") -// store in translate_address_array for faster translation using dev_translate_address -void -biosemu_dev_get_addr_info(void) -{ - // get bus/dev/fn from assigned-addresses - int32_t len; - //max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges - assigned_address_t buf[11]; - len = - of_getprop(bios_device.phandle, "assigned-addresses", buf, - sizeof(buf)); - bios_device.bus = buf[0].bus; - bios_device.devfn = buf[0].devfn; - DEBUG_PRINTF("bus: %x, devfn: %x\n", bios_device.bus, - bios_device.devfn); - //store address translations for all assigned-addresses and regs in - //translate_address_array for faster translation later on... - int i = 0; - // index to insert data into translate_address_array - int taa_index = 0; - u64 address_offset; - for (i = 0; i < (len / sizeof(assigned_address_t)); i++, taa_index++) { - //copy all info stored in assigned-addresses - translate_address_array[taa_index].info = buf[i].info; - translate_address_array[taa_index].bus = buf[i].bus; - translate_address_array[taa_index].devfn = buf[i].devfn; - translate_address_array[taa_index].cfg_space_offset = - buf[i].cfg_space_offset; - translate_address_array[taa_index].address = buf[i].address; - translate_address_array[taa_index].size = buf[i].size; - // translate first address and store it as address_offset - address_offset = buf[i].address; - translate_address_dev(&address_offset, bios_device.phandle); - translate_address_array[taa_index].address_offset = - address_offset - buf[i].address; - } - //get "reg" property - len = of_getprop(bios_device.phandle, "reg", buf, sizeof(buf)); - for (i = 0; i < (len / sizeof(assigned_address_t)); i++) { - if ((buf[i].size == 0) || (buf[i].cfg_space_offset != 0)) { - // we dont care for ranges with size 0 and - // BARs and Expansion ROM must be in assigned-addresses... so in reg - // we only look for those without config space offset set... - // i.e. the legacy ranges - continue; - } - //copy all info stored in assigned-addresses - translate_address_array[taa_index].info = buf[i].info; - translate_address_array[taa_index].bus = buf[i].bus; - translate_address_array[taa_index].devfn = buf[i].devfn; - translate_address_array[taa_index].cfg_space_offset = - buf[i].cfg_space_offset; - translate_address_array[taa_index].address = buf[i].address; - translate_address_array[taa_index].size = buf[i].size; - // translate first address and store it as address_offset - address_offset = buf[i].address; - translate_address_dev(&address_offset, bios_device.phandle); - translate_address_array[taa_index].address_offset = - address_offset - buf[i].address; - taa_index++; - } - // store last entry index of translate_address_array - taa_last_entry = taa_index - 1; -#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG - //dump translate_address_array - printf("translate_address_array: \n"); - translate_address_t ta; - for (i = 0; i <= taa_last_entry; i++) { - ta = translate_address_array[i]; - printf - ("%d: %02x%02x%02x%02x\n\taddr: %016llx\n\toffs: %016llx\n\tsize: %016llx\n", - i, ta.info, ta.bus, ta.devfn, ta.cfg_space_offset, - ta.address, ta.address_offset, ta.size); - } -#endif -} -#endif - -#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL -// to simulate accesses to legacy VGA Memory (0xA0000-0xBFFFF) -// we look for the first prefetchable memory BAR, if no prefetchable BAR found, -// we use the first memory BAR -// dev_translate_addr will translate accesses to the legacy VGA Memory into the found vmem BAR -static void -biosemu_dev_find_vmem_addr(void) -{ - int i = 0; - translate_address_t ta; - s8 tai_np = -1, tai_p = -1; // translate_address_array index for non-prefetchable and prefetchable memory - //search backwards to find first entry - for (i = taa_last_entry; i >= 0; i--) { - ta = translate_address_array[i]; - if ((ta.cfg_space_offset >= 0x10) - && (ta.cfg_space_offset <= 0x24)) { - //only BARs - if ((ta.info & 0x03) >= 0x02) { - //32/64bit memory - tai_np = i; - if ((ta.info & 0x40) != 0) { - // prefetchable - tai_p = i; - } - } - } - } - if (tai_p != -1) { - ta = translate_address_array[tai_p]; - bios_device.vmem_addr = ta.address; - bios_device.vmem_size = ta.size; - DEBUG_PRINTF - ("%s: Found prefetchable Virtual Legacy Memory BAR: %llx, size: %llx\n", - __func__, bios_device.vmem_addr, - bios_device.vmem_size); - } else if (tai_np != -1) { - ta = translate_address_array[tai_np]; - bios_device.vmem_addr = ta.address; - bios_device.vmem_size = ta.size; - DEBUG_PRINTF - ("%s: Found non-prefetchable Virtual Legacy Memory BAR: %llx, size: %llx", - __func__, bios_device.vmem_addr, - bios_device.vmem_size); - } - // disable vmem - //bios_device.vmem_size = 0; -} - -void -biosemu_dev_get_puid(void) -{ - // get puid - bios_device.puid = get_puid(bios_device.phandle); - DEBUG_PRINTF("puid: 0x%llx\n", bios_device.puid); -} -#endif - -static void -biosemu_dev_get_device_vendor_id(void) -{ - - u32 pci_config_0; -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - pci_config_0 = pci_read_config32(bios_device.dev, 0x0); -#else - pci_config_0 = - rtas_pci_config_read(bios_device.puid, 4, bios_device.bus, - bios_device.devfn, 0x0); -#endif - bios_device.pci_device_id = - (u16) ((pci_config_0 & 0xFFFF0000) >> 16); - bios_device.pci_vendor_id = (u16) (pci_config_0 & 0x0000FFFF); - DEBUG_PRINTF("PCI Device ID: %04x, PCI Vendor ID: %x\n", - bios_device.pci_device_id, bios_device.pci_vendor_id); -} - -/* Check whether the device has a valid Expansion ROM and search the PCI Data - * Structure and any Expansion ROM Header (using dev_scan_exp_header()) for - * needed information. If the rom_addr parameter is != 0, it is the address of - * the Expansion ROM image and will be used, if it is == 0, the Expansion ROM - * BAR address will be used. - */ -u8 -biosemu_dev_check_exprom(unsigned long rom_base_addr) -{ - int i = 0; - translate_address_t ta; - u16 pci_ds_offset; - pci_data_struct_t pci_ds; - if (rom_base_addr == 0) { - // check for ExpROM Address (Offset 30) in taa - for (i = 0; i <= taa_last_entry; i++) { - ta = translate_address_array[i]; - if (ta.cfg_space_offset == 0x30) { - //translated address - rom_base_addr = ta.address + ta.address_offset; - break; - } - } - } - /* In the ROM there could be multiple Expansion ROM Images... start - * searching them for an x86 image. - */ - do { - if (rom_base_addr == 0) { - printf("Error: no Expansion ROM address found!\n"); - return -1; - } - set_ci(); - u16 rom_signature = in16le((void *) rom_base_addr); - clr_ci(); - if (rom_signature != 0xaa55) { - printf - ("Error: invalid Expansion ROM signature: %02x!\n", - *((u16 *) rom_base_addr)); - return -1; - } - set_ci(); - // at offset 0x18 is the (16bit little-endian) pointer to the PCI Data Structure - pci_ds_offset = in16le((void *) (rom_base_addr + 0x18)); - //copy the PCI Data Structure - memcpy(&pci_ds, (void *) (rom_base_addr + pci_ds_offset), - sizeof(pci_ds)); - clr_ci(); -#if defined(CONFIG_X86EMU_DEBUG) && CONFIG_X86EMU_DEBUG - DEBUG_PRINTF("PCI Data Structure @%lx:\n", - rom_base_addr + pci_ds_offset); - dump((void *) &pci_ds, sizeof(pci_ds)); -#endif - if (strncmp((const char *) pci_ds.signature, "PCIR", 4) != 0) { - printf("Invalid PCI Data Structure found!\n"); - break; - } - //little-endian conversion - pci_ds.vendor_id = in16le(&pci_ds.vendor_id); - pci_ds.device_id = in16le(&pci_ds.device_id); - pci_ds.img_length = in16le(&pci_ds.img_length); - pci_ds.pci_ds_length = in16le(&pci_ds.pci_ds_length); - if (pci_ds.vendor_id != bios_device.pci_vendor_id) { - printf - ("Image has invalid Vendor ID: %04x, expected: %04x\n", - pci_ds.vendor_id, bios_device.pci_vendor_id); - break; - } - if (pci_ds.device_id != bios_device.pci_device_id) { - printf - ("Image has invalid Device ID: %04x, expected: %04x\n", - pci_ds.device_id, bios_device.pci_device_id); - break; - } - DEBUG_PRINTF("Image Length: %d\n", pci_ds.img_length * 512); - DEBUG_PRINTF("Image Code Type: %d\n", pci_ds.code_type); - if (pci_ds.code_type == 0) { - //x86 image - //store image address and image length in bios_device struct - bios_device.img_addr = rom_base_addr; - bios_device.img_size = pci_ds.img_length * 512; - // we found the image, exit the loop - break; - } else { - // no x86 image, check next image (if any) - rom_base_addr += pci_ds.img_length * 512; - } - if ((pci_ds.indicator & 0x80) == 0x80) { - //last image found, exit the loop - DEBUG_PRINTF("Last PCI Expansion ROM Image found.\n"); - break; - } - } - while (bios_device.img_addr == 0); - // in case we did not find a valid x86 Expansion ROM Image - if (bios_device.img_addr == 0) { - printf("Error: no valid x86 Expansion ROM Image found!\n"); - return -1; - } - return 0; -} - -u8 -biosemu_dev_init(struct device * device) -{ - u8 rval = 0; - //init bios_device struct - DEBUG_PRINTF("%s\n", __func__); - memset(&bios_device, 0, sizeof(bios_device)); - -#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL - bios_device.ihandle = of_open(device_name); - if (bios_device.ihandle == 0) { - DEBUG_PRINTF("%s is no valid device!\n", device_name); - return -1; - } - bios_device.phandle = of_finddevice(device_name); -#else - bios_device.dev = device; -#endif - biosemu_dev_get_addr_info(); -#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL - biosemu_dev_find_vmem_addr(); - biosemu_dev_get_puid(); -#endif - biosemu_dev_get_device_vendor_id(); - return rval; -} - -// translate address function using translate_address_array assembled -// by dev_get_addr_info... MUCH faster than calling translate_address_dev -// and accessing client interface for every translation... -// returns: 0 if addr not found in translate_address_array, 1 if found. -u8 -biosemu_dev_translate_address(unsigned long * addr) -{ - int i = 0; - translate_address_t ta; -#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL - /* we dont need this hack for coreboot... we can access legacy areas */ - //check if it is an access to legacy VGA Mem... if it is, map the address - //to the vmem BAR and then translate it... - // (translation info provided by Ben Herrenschmidt) - // NOTE: the translation seems to only work for NVIDIA cards... but it is needed - // to make some NVIDIA cards work at all... - if ((bios_device.vmem_size > 0) - && ((*addr >= 0xA0000) && (*addr < 0xB8000))) { - *addr = (*addr - 0xA0000) * 4 + 2 + bios_device.vmem_addr; - } - if ((bios_device.vmem_size > 0) - && ((*addr >= 0xB8000) && (*addr < 0xC0000))) { - u8 shift = *addr & 1; - *addr &= 0xfffffffe; - *addr = (*addr - 0xB8000) * 4 + shift + bios_device.vmem_addr; - } -#endif - for (i = 0; i <= taa_last_entry; i++) { - ta = translate_address_array[i]; - if ((*addr >= ta.address) && (*addr <= (ta.address + ta.size))) { - *addr += ta.address_offset; - return 1; - } - } - return 0; -} diff --git a/util/x86emu/yabel/device.h b/util/x86emu/yabel/device.h deleted file mode 100644 index dbbd28d5e8..0000000000 --- a/util/x86emu/yabel/device.h +++ /dev/null @@ -1,182 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#ifndef DEVICE_LIB_H -#define DEVICE_LIB_H - -#include <types.h> -#include <arch/byteorder.h> -#include "compat/of.h" -#include "debug.h" - - -// a Expansion Header Struct as defined in Plug and Play BIOS Spec 1.0a Chapter 3.2 -typedef struct { - char signature[4]; // signature - u8 structure_revision; - u8 length; // in 16 byte blocks - u16 next_header_offset; // offset to next Expansion Header as 16bit little-endian value, as offset from the start of the Expansion ROM - u8 reserved; - u8 checksum; // the sum of all bytes of the Expansion Header must be 0 - u32 device_id; // PnP Device ID as 32bit little-endian value - u16 p_manufacturer_string; //16bit little-endian offset from start of Expansion ROM - u16 p_product_string; //16bit little-endian offset from start of Expansion ROM - u8 device_base_type; - u8 device_sub_type; - u8 device_if_type; - u8 device_indicators; - // the following vectors are all 16bit little-endian offsets from start of Expansion ROM - u16 bcv; // Boot Connection Vector - u16 dv; // Disconnect Vector - u16 bev; // Bootstrap Entry Vector - u16 reserved_2; - u16 sriv; // Static Resource Information Vector -} __attribute__ ((__packed__)) exp_header_struct_t; - -// a PCI Data Struct as defined in PCI 2.3 Spec Chapter 6.3.1.2 -typedef struct { - u8 signature[4]; // signature, the String "PCIR" - u16 vendor_id; - u16 device_id; - u16 reserved; - u16 pci_ds_length; // PCI Data Structure Length, 16bit little-endian value - u8 pci_ds_revision; - u8 class_code[3]; - u16 img_length; // length of the Exp.ROM Image, 16bit little-endian value in 512 bytes - u16 img_revision; - u8 code_type; - u8 indicator; - u16 reserved_2; -} __attribute__ ((__packed__)) pci_data_struct_t; - -typedef struct { - u8 bus; - u8 devfn; -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - struct device* dev; -#else - u64 puid; - phandle_t phandle; - ihandle_t ihandle; -#endif - // store the address of the BAR that is used to simulate - // legacy VGA memory accesses - u64 vmem_addr; - u64 vmem_size; - // used to buffer I/O Accesses, that do not access the I/O Range of the device... - // 64k might be overkill, but we can buffer all I/O accesses... - u8 io_buffer[64 * 1024]; - u16 pci_vendor_id; - u16 pci_device_id; - // translated address of the "PC-Compatible" Expansion ROM Image for this device - unsigned long img_addr; - u32 img_size; // size of the Expansion ROM Image (read from the PCI Data Structure) -} biosemu_device_t; - -typedef struct { -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - unsigned long info; -#else - u8 info; -#endif - u8 bus; - u8 devfn; - u8 cfg_space_offset; - u64 address; - u64 address_offset; - u64 size; -} __attribute__ ((__packed__)) translate_address_t; - -// array to store address translations for this -// device. Needed for faster address translation, so -// not every I/O or Memory Access needs to call translate_address_dev -// and access the device tree -// 6 BARs, 1 Exp. ROM, 1 Cfg.Space, and 3 Legacy -// translations are supported... this should be enough for -// most devices... for VGA it is enough anyways... -extern translate_address_t translate_address_array[11]; - -// index of last translate_address_array entry -// set by get_dev_addr_info function -extern u8 taa_last_entry; - -/* the device we are working with... */ -extern biosemu_device_t bios_device; - -u8 biosemu_dev_init(struct device * device); -// NOTE: for dev_check_exprom to work, biosemu_dev_init MUST be called first! -u8 biosemu_dev_check_exprom(unsigned long rom_base_addr); - -u8 biosemu_dev_translate_address(unsigned long * addr); - -/* endianness swap functions for 16 and 32 bit words - * copied from axon_pciconfig.c - */ -static inline void -out32le(void *addr, u32 val) -{ -#ifdef __i386 - *((u32*) addr) = cpu_to_le32(val); -#else - asm volatile ("stwbrx %0, 0, %1"::"r" (val), "r"(addr)); -#endif -} - -static inline u32 -in32le(void *addr) -{ - u32 val; -#ifdef __i386 - val = cpu_to_le32(*((u32 *) addr)); -#else - asm volatile ("lwbrx %0, 0, %1":"=r" (val):"r"(addr)); -#endif - return val; -} - -static inline void -out16le(void *addr, u16 val) -{ -#ifdef __i386 - *((u16*) addr) = cpu_to_le16(val); -#else - asm volatile ("sthbrx %0, 0, %1"::"r" (val), "r"(addr)); -#endif -} - -static inline u16 -in16le(void *addr) -{ - u16 val; -#ifdef __i386 - val = cpu_to_le16(*((u16*) addr)); -#else - asm volatile ("lhbrx %0, 0, %1":"=r" (val):"r"(addr)); -#endif - return val; -} - -/* debug function, dumps HID1 and HID4 to detect whether caches are on/off */ -static inline void -dumpHID(void) -{ - u64 hid; - //HID1 = 1009 - __asm__ __volatile__("mfspr %0, 1009":"=r"(hid)); - printf("HID1: %016llx\n", hid); - //HID4 = 1012 - __asm__ __volatile__("mfspr %0, 1012":"=r"(hid)); - printf("HID4: %016llx\n", hid); -} - -#endif diff --git a/util/x86emu/yabel/interrupt.c b/util/x86emu/yabel/interrupt.c deleted file mode 100644 index 9a796005bb..0000000000 --- a/util/x86emu/yabel/interrupt.c +++ /dev/null @@ -1,677 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#include <types.h> -#include "compat/rtas.h" - -#include "biosemu.h" -#include "mem.h" -#include "device.h" -#include "debug.h" -#include "pmm.h" -#include "interrupt.h" - -#include <x86emu/x86emu.h> -#include "../x86emu/prim_ops.h" - -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL -#include <device/pci.h> -#include <device/pci_ops.h> -#endif - - -//setup to run the code at the address, that the Interrupt Vector points to... -static void -setupInt(int intNum) -{ - DEBUG_PRINTF_INTR("%s(%x): executing interrupt handler @%08x\n", - __func__, intNum, my_rdl(intNum * 4)); - // push current R_FLG... will be popped by IRET - push_word((u16) M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - // push current CS:IP to the stack, will be popped by IRET - push_word(M.x86.R_CS); - push_word(M.x86.R_IP); - // set CS:IP to the interrupt handler address... so the next executed instruction will - // be the interrupt handler - M.x86.R_CS = my_rdw(intNum * 4 + 2); - M.x86.R_IP = my_rdw(intNum * 4); -} - -// handle int10 (VGA BIOS Interrupt) -static void -handleInt10(void) -{ - // the data for INT10 is stored in BDA (0000:0400h) offset 49h-66h - // function number in AH - //DEBUG_PRINTF_CS_IP("%s:\n", __func__); - //x86emu_dump_xregs(); - //if ((M.x86.R_IP == 0x32c2) && (M.x86.R_SI == 0x1ce2)){ - //X86EMU_trace_on(); - //M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; - //} - switch (M.x86.R_AH) { - case 0x00: - // set video mode - // BDA offset 49h is current video mode - my_wrb(0x449, M.x86.R_AL); - if (M.x86.R_AL > 7) - M.x86.R_AL = 0x20; - else if (M.x86.R_AL == 6) - M.x86.R_AL = 0x3f; - else - M.x86.R_AL = 0x30; - break; - case 0x01: - // set cursor shape - // ignore - break; - case 0x02: - // set cursor position - // BH: pagenumber, DX: cursor_pos (DH:row, DL:col) - // BDA offset 50h-60h are 8 cursor position words for - // eight possible video pages - my_wrw(0x450 + (M.x86.R_BH * 2), M.x86.R_DX); - break; - case 0x03: - //get cursor position - // BH: pagenumber - // BDA offset 50h-60h are 8 cursor position words for - // eight possible video pages - M.x86.R_AX = 0; - M.x86.R_CH = 0; // start scan line ??? - M.x86.R_CL = 0; // end scan line ??? - M.x86.R_DX = my_rdw(0x450 + (M.x86.R_BH * 2)); - break; - case 0x05: - // set active page - // BDA offset 62h is current page number - my_wrb(0x462, M.x86.R_AL); - break; - case 0x06: - //scroll up windows - break; - case 0x07: - //scroll down windows - break; - case 0x08: - //read character and attribute at position - M.x86.R_AH = 0x07; // white-on-black - M.x86.R_AL = 0x20; // a space... - break; - case 0x09: - // write character and attribute - //AL: char, BH: page number, BL: attribute, CX: number of times to write - //BDA offset 62h is current page number - CHECK_DBG(DEBUG_PRINT_INT10) { - u32 i = 0; - if (M.x86.R_BH == my_rdb(0x462)) { - for (i = 0; i < M.x86.R_CX; i++) - printf("%c", M.x86.R_AL); - } - } - break; - case 0x0a: - // write character - //AL: char, BH: page number, BL: attribute, CX: number of times to write - //BDA offset 62h is current page number - CHECK_DBG(DEBUG_PRINT_INT10) { - u32 i = 0; - if (M.x86.R_BH == my_rdb(0x462)) { - for (i = 0; i < M.x86.R_CX; i++) - printf("%c", M.x86.R_AL); - } - } - break; - case 0x0e: - // teletype output: write character and advance cursor... - //AL: char, BH: page number, BL: attribute - //BDA offset 62h is current page number - CHECK_DBG(DEBUG_PRINT_INT10) { - // we ignore the pagenumber on this call... - //if (M.x86.R_BH == my_rdb(0x462)) - { - printf("%c", M.x86.R_AL); - // for debugging, to read all lines - //if (M.x86.R_AL == 0xd) // carriage return - // printf("\n"); - } - } - break; - case 0x0f: - // get video mode - // BDA offset 49h is current video mode - // BDA offset 62h is current page number - // BDA offset 4ah is columns on screen - M.x86.R_AH = 80; //number of character columns... we hardcode it to 80 - M.x86.R_AL = my_rdb(0x449); - M.x86.R_BH = my_rdb(0x462); - break; - default: - printf("%s(): unknown function (%x) for int10 handler.\n", - __func__, M.x86.R_AH); - DEBUG_PRINTF_INTR("AX=%04x BX=%04x CX=%04x DX=%04x\n", - M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, - M.x86.R_DX); - HALT_SYS(); - break; - } -} - -// this table translates ASCII chars into their XT scan codes: -static u8 keycode_table[256] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0 - 7 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 8 - 15 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 16 - 23 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 24 - 31 - 0x39, 0x02, 0x28, 0x04, 0x05, 0x06, 0x08, 0x28, // 32 - 39 - 0x0a, 0x0b, 0x09, 0x2b, 0x33, 0x0d, 0x34, 0x35, // 40 - 47 - 0x0b, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, // 48 - 55 - 0x09, 0x0a, 0x27, 0x27, 0x33, 0x2b, 0x34, 0x35, // 56 - 63 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 64 - 71 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 72 - 79 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 80 - 87 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 88 - 95 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 96 - 103 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 104 - 111 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 112 - 119 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 120 - 127 - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // ... - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -} - -; - -static void -translate_keycode(u64 * keycode) -{ - u8 scan_code = 0; - u8 char_code = 0; - if (*keycode < 256) { - scan_code = keycode_table[*keycode]; - char_code = (u8) * keycode & 0xff; - } else { - switch (*keycode) { - case 0x1b50: - // F1 - scan_code = 0x3b; - char_code = 0x0; - break; - default: - printf("%s(): unknown multibyte keycode: %llx\n", - __func__, *keycode); - break; - } - } - //assemble scan/char code in keycode - *keycode = (u64) ((((u16) scan_code) << 8) | char_code); -} - -// handle int16 (Keyboard BIOS Interrupt) -static void -handleInt16(void) -{ - // keyboard buffer is in BIOS Memory Area: - // offset 0x1a (WORD) pointer to next char in keybuffer - // offset 0x1c (WORD) pointer to next insert slot in keybuffer - // offset 0x1e-0x3e: 16 WORD Ring Buffer - // since we currently always read the char from the FW buffer, - // we misuse the ring buffer, we use it as pointer to a u64 that stores - // multi-byte keys (e.g. special keys in VT100 terminal) - // and as long as a key is available (not 0) we dont read further keys - u64 *keycode = (u64 *) (M.mem_base + 0x41e); - s8 c; - // function number in AH - DEBUG_PRINTF_INTR("%s(): Keyboard Interrupt: function: %x.\n", - __func__, M.x86.R_AH); - DEBUG_PRINTF_INTR("AX=%04x BX=%04x CX=%04x DX=%04x\n", M.x86.R_AX, - M.x86.R_BX, M.x86.R_CX, M.x86.R_DX); - switch (M.x86.R_AH) { - case 0x00: - // get keystroke - if (*keycode) { - M.x86.R_AX = (u16) * keycode; - // clear keycode - *keycode = 0; - } else { - M.x86.R_AH = 0x61; // scancode for space key - M.x86.R_AL = 0x20; // a space - } - break; - case 0x01: - // check keystroke - // ZF set = no keystroke - // read first byte of key code - if (*keycode) { - // already read, but not yet taken - CLEAR_FLAG(F_ZF); - M.x86.R_AX = (u16) * keycode; - } else { - /* TODO: we need getchar... */ - c = -1; //getchar(); - if (c == -1) { - // no key available - SET_FLAG(F_ZF); - } else { - *keycode = c; - - // since after an ESC it may take a while to receive the next char, - // we send something that is not shown on the screen, and then try to get - // the next char - // TODO: only after ESC?? what about other multibyte keys - printf("tt%c%c", 0x08, 0x08); // 0x08 == Backspace - - /* TODO: we need getchar... */ - while ((c = -1 /*getchar()*/) != -1) { - *keycode = (*keycode << 8) | c; - DEBUG_PRINTF(" key read: %0llx\n", - *keycode); - } - translate_keycode(keycode); - DEBUG_PRINTF(" translated key: %0llx\n", - *keycode); - if (*keycode == 0) { - //not found - SET_FLAG(F_ZF); - } else { - CLEAR_FLAG(F_ZF); - M.x86.R_AX = (u16) * keycode; - //X86EMU_trace_on(); - //M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; - } - } - } - break; - default: - printf("%s(): unknown function (%x) for int16 handler.\n", - __func__, M.x86.R_AH); - DEBUG_PRINTF_INTR("AX=%04x BX=%04x CX=%04x DX=%04x\n", - M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, - M.x86.R_DX); - HALT_SYS(); - break; - } -} - -// handle int1a (PCI BIOS Interrupt) -static void -handleInt1a(void) -{ - // function number in AX - u8 bus, devfn, offs; - struct device* dev; - switch (M.x86.R_AX) { - case 0xb101: - // Installation check - CLEAR_FLAG(F_CF); // clear CF - M.x86.R_EDX = 0x20494350; // " ICP" endian swapped "PCI " - M.x86.R_AL = 0x1; // Config Space Mechanism 1 supported - M.x86.R_BX = 0x0210; // PCI Interface Level Version 2.10 - M.x86.R_CL = 0xff; // number of last PCI Bus in system TODO: check! - break; - case 0xb102: - // Find PCI Device - // device_id in CX, vendor_id in DX - // device index in SI (i.e. if multiple devices with same vendor/device id - // are connected). We currently only support device index 0 - // - DEBUG_PRINTF_INTR("%s(): function: %x: PCI Find Device\n", - __func__, M.x86.R_AX); - /* FixME: support SI != 0 */ -#if defined(CONFIG_YABEL_PCI_ACCESS_OTHER_DEVICES) && CONFIG_YABEL_PCI_ACCESS_OTHER_DEVICES==1 - dev = dev_find_device(M.x86.R_DX, M.x86.R_CX, 0); - if (dev != 0) { - DEBUG_PRINTF_INTR - ("%s(): function %x: PCI Find Device --> 0x%04x\n", - __func__, M.x86.R_AX, M.x86.R_BX); - - M.x86.R_BH = dev->bus->secondary; - M.x86.R_BL = dev->path.pci.devfn; - M.x86.R_AH = 0x00; // return code: success - CLEAR_FLAG(F_CF); -#else - // only allow the device to find itself... - if ((M.x86.R_CX == bios_device.pci_device_id) - && (M.x86.R_DX == bios_device.pci_vendor_id) - // device index must be 0 - && (M.x86.R_SI == 0)) { - CLEAR_FLAG(F_CF); - M.x86.R_AH = 0x00; // return code: success - M.x86.R_BH = bios_device.bus; - M.x86.R_BL = bios_device.devfn; -#endif - } else { - DEBUG_PRINTF_INTR - ("%s(): function %x: invalid device/vendor/device index! (%04x/%04x/%02x expected: %04x/%04x/00) \n", - __func__, M.x86.R_AX, M.x86.R_CX, M.x86.R_DX, - M.x86.R_SI, bios_device.pci_device_id, - bios_device.pci_vendor_id); - - SET_FLAG(F_CF); - M.x86.R_AH = 0x86; // return code: device not found - } - break; - case 0xb108: //read configuration byte - case 0xb109: //read configuration word - case 0xb10a: //read configuration dword - bus = M.x86.R_BH; - devfn = M.x86.R_BL; - offs = M.x86.R_DI; - DEBUG_PRINTF_INTR("%s(): function: %x: PCI Config Read from device: bus: %02x, devfn: %02x, offset: %02x\n", - __func__, M.x86.R_AX, bus, devfn, offs); -#if defined(CONFIG_YABEL_PCI_ACCESS_OTHER_DEVICES) && CONFIG_YABEL_PCI_ACCESS_OTHER_DEVICES==1 - dev = dev_find_slot(bus, devfn); - DEBUG_PRINTF_INTR("%s(): function: %x: dev_find_slot() returned: %s\n", - __func__, M.x86.R_AX, dev_path(dev)); - if (dev == 0) { - // fail accesses to non-existent devices... -#else - dev = bios_device.dev; - if ((bus != bios_device.bus) - || (devfn != bios_device.devfn)) { - // fail accesses to any device but ours... -#endif - printf - ("%s(): Config read access invalid device! bus: %02x (%02x), devfn: %02x (%02x), offs: %02x\n", - __func__, bus, bios_device.bus, devfn, - bios_device.devfn, offs); - SET_FLAG(F_CF); - M.x86.R_AH = 0x87; //return code: bad pci register - HALT_SYS(); - return; - } else { - switch (M.x86.R_AX) { - case 0xb108: - M.x86.R_CL = -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - pci_read_config8(dev, offs); -#else - (u8) rtas_pci_config_read(bios_device. - puid, 1, - bus, devfn, - offs); -#endif - DEBUG_PRINTF_INTR - ("%s(): function %x: PCI Config Read @%02x --> 0x%02x\n", - __func__, M.x86.R_AX, offs, - M.x86.R_CL); - break; - case 0xb109: - M.x86.R_CX = -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - pci_read_config16(dev, offs); -#else - (u16) rtas_pci_config_read(bios_device. - puid, 2, - bus, devfn, - offs); -#endif - DEBUG_PRINTF_INTR - ("%s(): function %x: PCI Config Read @%02x --> 0x%04x\n", - __func__, M.x86.R_AX, offs, - M.x86.R_CX); - break; - case 0xb10a: - M.x86.R_ECX = -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - pci_read_config32(dev, offs); -#else - (u32) rtas_pci_config_read(bios_device. - puid, 4, - bus, devfn, - offs); -#endif - DEBUG_PRINTF_INTR - ("%s(): function %x: PCI Config Read @%02x --> 0x%08x\n", - __func__, M.x86.R_AX, offs, - M.x86.R_ECX); - break; - } - CLEAR_FLAG(F_CF); - M.x86.R_AH = 0x0; // return code: success - } - break; - case 0xb10b: //write configuration byte - case 0xb10c: //write configuration word - case 0xb10d: //write configuration dword - bus = M.x86.R_BH; - devfn = M.x86.R_BL; - offs = M.x86.R_DI; - if ((bus != bios_device.bus) - || (devfn != bios_device.devfn)) { - // fail accesses to any device but ours... - printf - ("%s(): Config read access invalid! bus: %x (%x), devfn: %x (%x), offs: %x\n", - __func__, bus, bios_device.bus, devfn, - bios_device.devfn, offs); - SET_FLAG(F_CF); - M.x86.R_AH = 0x87; //return code: bad pci register - HALT_SYS(); - return; - } else { - switch (M.x86.R_AX) { - case 0xb10b: -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - pci_write_config8(bios_device.dev, offs, M.x86.R_CL); -#else - rtas_pci_config_write(bios_device.puid, 1, bus, - devfn, offs, M.x86.R_CL); -#endif - DEBUG_PRINTF_INTR - ("%s(): function %x: PCI Config Write @%02x <-- 0x%02x\n", - __func__, M.x86.R_AX, offs, - M.x86.R_CL); - break; - case 0xb10c: -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - pci_write_config16(bios_device.dev, offs, M.x86.R_CX); -#else - rtas_pci_config_write(bios_device.puid, 2, bus, - devfn, offs, M.x86.R_CX); -#endif - DEBUG_PRINTF_INTR - ("%s(): function %x: PCI Config Write @%02x <-- 0x%04x\n", - __func__, M.x86.R_AX, offs, - M.x86.R_CX); - break; - case 0xb10d: -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - pci_write_config32(bios_device.dev, offs, M.x86.R_ECX); -#else - rtas_pci_config_write(bios_device.puid, 4, bus, - devfn, offs, M.x86.R_ECX); -#endif - DEBUG_PRINTF_INTR - ("%s(): function %x: PCI Config Write @%02x <-- 0x%08x\n", - __func__, M.x86.R_AX, offs, - M.x86.R_ECX); - break; - } - CLEAR_FLAG(F_CF); - M.x86.R_AH = 0x0; // return code: success - } - break; - default: - printf("%s(): unknown function (%x) for int1a handler.\n", - __func__, M.x86.R_AX); - DEBUG_PRINTF_INTR("AX=%04x BX=%04x CX=%04x DX=%04x\n", - M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, - M.x86.R_DX); - HALT_SYS(); - break; - } -} - -// main Interrupt Handler routine, should be registered as x86emu interrupt handler -void -handleInterrupt(int intNum) -{ - u8 int_handled = 0; -#ifndef DEBUG_PRINT_INT10 - // this printf makes output by int 10 unreadable... - // so we only enable it, if int10 print is disabled - DEBUG_PRINTF_INTR("%s(%x)\n", __func__, intNum); -#endif - - /* check wether this interrupt has a function pointer set in yabel_intFuncArray and run that */ - if (yabel_intFuncArray[intNum]) { - DEBUG_PRINTF_INTR("%s(%x) intHandler overridden, calling it...\n", __func__, intNum); - int_handled = (*yabel_intFuncArray[intNum])(); - } else { - switch (intNum) { - case 0x10: //BIOS video interrupt - case 0x42: // INT 10h relocated by EGA/VGA BIOS - case 0x6d: // INT 10h relocated by VGA BIOS - // get interrupt vector from IDT (4 bytes per Interrupt starting at address 0 - if ((my_rdl(intNum * 4) == 0xF000F065) || //F000:F065 is default BIOS interrupt handler address - (my_rdl(intNum * 4) == 0xF4F4F4F4)) //invalid - { -#if 0 - // ignore interrupt... - DEBUG_PRINTF_INTR - ("%s(%x): invalid interrupt Vector (%08x) found, interrupt ignored...\n", - __func__, intNum, my_rdl(intNum * 4)); - DEBUG_PRINTF_INTR("AX=%04x BX=%04x CX=%04x DX=%04x\n", - M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, - M.x86.R_DX); - //HALT_SYS(); -#endif - handleInt10(); - int_handled = 1; - } - break; - case 0x16: - // Keyboard BIOS Interrupt - handleInt16(); - int_handled = 1; - break; - case 0x1a: - // PCI BIOS Interrupt - handleInt1a(); - int_handled = 1; - break; - case PMM_INT_NUM: - /* the selfdefined PMM INT number, this is called by the code in PMM struct, it - * is handled by pmm_handleInt() - */ - pmm_handleInt(); - int_handled = 1; - break; - default: - printf("Interrupt %#x (Vector: %x) not implemented\n", intNum, - my_rdl(intNum * 4)); - DEBUG_PRINTF_INTR("AX=%04x BX=%04x CX=%04x DX=%04x\n", - M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, - M.x86.R_DX); - int_handled = 1; - HALT_SYS(); - break; - } - } - // if we did not handle the interrupt, jump to the interrupt vector... - if (!int_handled) { - setupInt(intNum); - } -} - -// prepare and execute Interrupt 10 (VGA Interrupt) -void -runInt10(void) -{ - // Initialize stack and data segment - M.x86.R_SS = STACK_SEGMENT; - M.x86.R_DS = DATA_SEGMENT; - M.x86.R_SP = STACK_START_OFFSET; - - // push a HLT instruction and a pointer to it onto the stack - // any return will pop the pointer and jump to the HLT, thus - // exiting (more or less) cleanly - push_word(0xf4f4); //F4=HLT - //push_word(M.x86.R_SS); - //push_word(M.x86.R_SP + 2); - - // setupInt will push the current CS and IP to the stack to return to it, - // but we want to halt, so set CS:IP to the HLT instruction we just pushed - // to the stack - M.x86.R_CS = M.x86.R_SS; - M.x86.R_IP = M.x86.R_SP; // + 4; - - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - CHECK_DBG(DEBUG_JMP) { - M.x86.debug |= DEBUG_TRACEJMP_REGS_F; - M.x86.debug |= DEBUG_TRACEJMP_REGS_F; - M.x86.debug |= DEBUG_TRACECALL_F; - M.x86.debug |= DEBUG_TRACECALL_REGS_F; - } - setupInt(0x10); - DEBUG_PRINTF_INTR("%s(): starting execution of INT10...\n", - __func__); - X86EMU_exec(); - DEBUG_PRINTF_INTR("%s(): execution finished\n", __func__); -} - -// prepare and execute Interrupt 13 (Disk Interrupt) -void -runInt13(void) -{ - // Initialize stack and data segment - M.x86.R_SS = STACK_SEGMENT; - M.x86.R_DS = DATA_SEGMENT; - M.x86.R_SP = STACK_START_OFFSET; - - // push a HLT instruction and a pointer to it onto the stack - // any return will pop the pointer and jump to the HLT, thus - // exiting (more or less) cleanly - push_word(0xf4f4); //F4=HLT - //push_word(M.x86.R_SS); - //push_word(M.x86.R_SP + 2); - - // setupInt will push the current CS and IP to the stack to return to it, - // but we want to halt, so set CS:IP to the HLT instruction we just pushed - // to the stack - M.x86.R_CS = M.x86.R_SS; - M.x86.R_IP = M.x86.R_SP; - - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - CHECK_DBG(DEBUG_JMP) { - M.x86.debug |= DEBUG_TRACEJMP_REGS_F; - M.x86.debug |= DEBUG_TRACEJMP_REGS_F; - M.x86.debug |= DEBUG_TRACECALL_F; - M.x86.debug |= DEBUG_TRACECALL_REGS_F; - } - - setupInt(0x13); - DEBUG_PRINTF_INTR("%s(): starting execution of INT13...\n", - __func__); - X86EMU_exec(); - DEBUG_PRINTF_INTR("%s(): execution finished\n", __func__); -} diff --git a/util/x86emu/yabel/interrupt.h b/util/x86emu/yabel/interrupt.h deleted file mode 100644 index 11755e102a..0000000000 --- a/util/x86emu/yabel/interrupt.h +++ /dev/null @@ -1,21 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ -#ifndef _BIOSEMU_INTERRUPT_H_ -#define _BIOSEMU_INTERRUPT_H_ - -void handleInterrupt(int intNum); - -void runInt10(void); - -void runInt13(void); - -#endif diff --git a/util/x86emu/yabel/io.c b/util/x86emu/yabel/io.c deleted file mode 100644 index 38a5d32c7c..0000000000 --- a/util/x86emu/yabel/io.c +++ /dev/null @@ -1,574 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#include <types.h> -#include "compat/rtas.h" -#include "compat/time.h" -#include "device.h" -#include "debug.h" -#include <x86emu/x86emu.h> -#include "io.h" - -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL -#include <device/pci.h> -#include <device/pci_ops.h> -#endif - -static unsigned int -read_io(void *addr, size_t sz) -{ - unsigned int ret; - /* since we are using inb instructions, we need the port number as 16bit value */ - u16 port = (u16)(u32) addr; - - switch (sz) { - case 1: - asm volatile ("inb %1, %b0" : "=a"(ret) : "d" (port)); - break; - case 2: - asm volatile ("inw %1, %w0" : "=a"(ret) : "d" (port)); - break; - case 4: - asm volatile ("inl %1, %0" : "=a"(ret) : "d" (port)); - break; - default: - ret = 0; - } - - return ret; -} - -static int -write_io(void *addr, unsigned int value, size_t sz) -{ - u16 port = (u16)(u32) addr; - switch (sz) { - /* since we are using inb instructions, we need the port number as 16bit value */ - case 1: - asm volatile ("outb %b0, %1" : : "a"(value), "d" (port)); - break; - case 2: - asm volatile ("outw %w0, %1" : : "a"(value), "d" (port)); - break; - case 4: - asm volatile ("outl %0, %1" : : "a"(value), "d" (port)); - break; - default: - return -1; - } - - return 0; -} - -#ifdef CONFIG_ARCH_X86 -#include <arch/io.h> -#else -// these are not used, only needed for linking, must be overridden using X86emu_setupPioFuncs -// with the functions and struct below -void -outb(u8 val, u16 port) -{ - printf("WARNING: outb not implemented!\n"); - HALT_SYS(); -} - -void -outw(u16 val, u16 port) -{ - printf("WARNING: outw not implemented!\n"); - HALT_SYS(); -} - -void -outl(u32 val, u16 port) -{ - printf("WARNING: outl not implemented!\n"); - HALT_SYS(); -} - -u8 -inb(u16 port) -{ - printf("WARNING: inb not implemented!\n"); - HALT_SYS(); - return 0; -} - -u16 -inw(u16 port) -{ - printf("WARNING: inw not implemented!\n"); - HALT_SYS(); - return 0; -} - -u32 -inl(u16 port) -{ - printf("WARNING: inl not implemented!\n"); - HALT_SYS(); - return 0; -} -#endif - -#if defined(CONFIG_YABEL_DIRECTHW) && (CONFIG_YABEL_DIRECTHW == 1) -u8 my_inb(X86EMU_pioAddr addr) -{ - u8 val; - - val = inb(addr); - DEBUG_PRINTF_IO("inb(0x%04x) = 0x%02x\n", addr, val); - - return val; -} - -u16 my_inw(X86EMU_pioAddr addr) -{ - u16 val; - - val = inw(addr); - DEBUG_PRINTF_IO("inw(0x%04x) = 0x%04x\n", addr, val); - - return val; -} - -u32 my_inl(X86EMU_pioAddr addr) -{ - u32 val; - - val = inl(addr); - DEBUG_PRINTF_IO("inl(0x%04x) = 0x%08x\n", addr, val); - - return val; -} - -void my_outb(X86EMU_pioAddr addr, u8 val) -{ - DEBUG_PRINTF_IO("outb(0x%02x, 0x%04x)\n", val, addr); - outb(val, addr); -} - -void my_outw(X86EMU_pioAddr addr, u16 val) -{ - DEBUG_PRINTF_IO("outw(0x%04x, 0x%04x)\n", val, addr); - outw(val, addr); -} - -void my_outl(X86EMU_pioAddr addr, u32 val) -{ - DEBUG_PRINTF_IO("outl(0x%08x, 0x%04x)\n", val, addr); - outl(val, addr); -} - -#else - -u32 pci_cfg_read(X86EMU_pioAddr addr, u8 size); -void pci_cfg_write(X86EMU_pioAddr addr, u32 val, u8 size); -u8 handle_port_61h(void); - -u8 -my_inb(X86EMU_pioAddr addr) -{ - u8 rval = 0xFF; - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access Device I/O (BAR or Legacy...) - DEBUG_PRINTF_IO("%s(%x): access to Device I/O\n", __func__, - addr); - //DEBUG_PRINTF_IO("%s(%04x): translated_addr: %llx\n", __func__, addr, translated_addr); - rval = read_io((void *)translated_addr, 1); - DEBUG_PRINTF_IO("%s(%04x) Device I/O --> %02x\n", __func__, - addr, rval); - return rval; - } else { - switch (addr) { - case 0x61: - //8254 KB Controller / Timer Port - // rval = handle_port_61h(); - rval = inb(0x61); - //DEBUG_PRINTF_IO("%s(%04x) KB / Timer Port B --> %02x\n", __func__, addr, rval); - return rval; - break; - case 0xCFC: - case 0xCFD: - case 0xCFE: - case 0xCFF: - // PCI Config Mechanism 1 Ports - return (u8) pci_cfg_read(addr, 1); - break; - case 0x0a: - CHECK_DBG(DEBUG_INTR) { - X86EMU_trace_on(); - } - M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; - //HALT_SYS(); - // no break, intentional fall-through to default!! - default: - DEBUG_PRINTF_IO - ("%s(%04x) reading from bios_device.io_buffer\n", - __func__, addr); - rval = *((u8 *) (bios_device.io_buffer + addr)); - DEBUG_PRINTF_IO("%s(%04x) I/O Buffer --> %02x\n", - __func__, addr, rval); - return rval; - break; - } - } -} - -u16 -my_inw(X86EMU_pioAddr addr) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access Device I/O (BAR or Legacy...) - DEBUG_PRINTF_IO("%s(%x): access to Device I/O\n", __func__, - addr); - //DEBUG_PRINTF_IO("%s(%04x): translated_addr: %llx\n", __func__, addr, translated_addr); - u16 rval; - if ((translated_addr & (u64) 0x1) == 0) { - // 16 bit aligned access... - u16 tempval = read_io((void *)translated_addr, 2); - //little endian conversion - rval = in16le((void *) &tempval); - } else { - // unaligned access, read single bytes, little-endian - rval = (read_io((void *)translated_addr, 1) << 8) - | (read_io((void *)(translated_addr + 1), 1)); - } - DEBUG_PRINTF_IO("%s(%04x) Device I/O --> %04x\n", __func__, - addr, rval); - return rval; - } else { - switch (addr) { - case 0xCFC: - case 0xCFE: - //PCI Config Mechanism 1 - return (u16) pci_cfg_read(addr, 2); - break; - default: - DEBUG_PRINTF_IO - ("%s(%04x) reading from bios_device.io_buffer\n", - __func__, addr); - u16 rval = - in16le((void *) bios_device.io_buffer + addr); - DEBUG_PRINTF_IO("%s(%04x) I/O Buffer --> %04x\n", - __func__, addr, rval); - return rval; - break; - } - } -} - -u32 -my_inl(X86EMU_pioAddr addr) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access Device I/O (BAR or Legacy...) - DEBUG_PRINTF_IO("%s(%x): access to Device I/O\n", __func__, - addr); - //DEBUG_PRINTF_IO("%s(%04x): translated_addr: %llx\n", __func__, addr, translated_addr); - u32 rval; - if ((translated_addr & (u64) 0x3) == 0) { - // 32 bit aligned access... - u32 tempval = read_io((void *) translated_addr, 4); - //little endian conversion - rval = in32le((void *) &tempval); - } else { - // unaligned access, read single bytes, little-endian - rval = (read_io((void *)(translated_addr), 1) << 24) - | (read_io((void *)(translated_addr + 1), 1) << 16) - | (read_io((void *)(translated_addr + 2), 1) << 8) - | (read_io((void *)(translated_addr + 3), 1)); - } - DEBUG_PRINTF_IO("%s(%04x) Device I/O --> %08x\n", __func__, - addr, rval); - return rval; - } else { - switch (addr) { - case 0xCFC: - //PCI Config Mechanism 1 - return pci_cfg_read(addr, 4); - break; - default: - DEBUG_PRINTF_IO - ("%s(%04x) reading from bios_device.io_buffer\n", - __func__, addr); - u32 rval = - in32le((void *) bios_device.io_buffer + addr); - DEBUG_PRINTF_IO("%s(%04x) I/O Buffer --> %08x\n", - __func__, addr, rval); - return rval; - break; - } - } -} - -void -my_outb(X86EMU_pioAddr addr, u8 val) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access Device I/O (BAR or Legacy...) - DEBUG_PRINTF_IO("%s(%x, %x): access to Device I/O\n", - __func__, addr, val); - //DEBUG_PRINTF_IO("%s(%04x): translated_addr: %llx\n", __func__, addr, translated_addr); - write_io((void *) translated_addr, val, 1); - DEBUG_PRINTF_IO("%s(%04x) Device I/O <-- %02x\n", __func__, - addr, val); - } else { - switch (addr) { - case 0xCFC: - case 0xCFD: - case 0xCFE: - case 0xCFF: - // PCI Config Mechanism 1 Ports - pci_cfg_write(addr, val, 1); - break; - default: - DEBUG_PRINTF_IO - ("%s(%04x,%02x) writing to bios_device.io_buffer\n", - __func__, addr, val); - *((u8 *) (bios_device.io_buffer + addr)) = val; - break; - } - } -} - -void -my_outw(X86EMU_pioAddr addr, u16 val) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access Device I/O (BAR or Legacy...) - DEBUG_PRINTF_IO("%s(%x, %x): access to Device I/O\n", - __func__, addr, val); - //DEBUG_PRINTF_IO("%s(%04x): translated_addr: %llx\n", __func__, addr, translated_addr); - if ((translated_addr & (u64) 0x1) == 0) { - // little-endian conversion - u16 tempval = in16le((void *) &val); - // 16 bit aligned access... - write_io((void *) translated_addr, tempval, 2); - } else { - // unaligned access, write single bytes, little-endian - write_io(((void *) (translated_addr + 1)), - (u8) ((val & 0xFF00) >> 8), 1); - write_io(((void *) translated_addr), - (u8) (val & 0x00FF), 1); - } - DEBUG_PRINTF_IO("%s(%04x) Device I/O <-- %04x\n", __func__, - addr, val); - } else { - switch (addr) { - case 0xCFC: - case 0xCFE: - // PCI Config Mechanism 1 Ports - pci_cfg_write(addr, val, 2); - break; - default: - DEBUG_PRINTF_IO - ("%s(%04x,%04x) writing to bios_device.io_buffer\n", - __func__, addr, val); - out16le((void *) bios_device.io_buffer + addr, val); - break; - } - } -} - -void -my_outl(X86EMU_pioAddr addr, u32 val) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access Device I/O (BAR or Legacy...) - DEBUG_PRINTF_IO("%s(%x, %x): access to Device I/O\n", - __func__, addr, val); - //DEBUG_PRINTF_IO("%s(%04x): translated_addr: %llx\n", __func__, addr, translated_addr); - if ((translated_addr & (u64) 0x3) == 0) { - // little-endian conversion - u32 tempval = in32le((void *) &val); - // 32 bit aligned access... - write_io((void *) translated_addr, tempval, 4); - } else { - // unaligned access, write single bytes, little-endian - write_io(((void *) translated_addr + 3), - (u8) ((val & 0xFF000000) >> 24), 1); - write_io(((void *) translated_addr + 2), - (u8) ((val & 0x00FF0000) >> 16), 1); - write_io(((void *) translated_addr + 1), - (u8) ((val & 0x0000FF00) >> 8), 1); - write_io(((void *) translated_addr), - (u8) (val & 0x000000FF), 1); - } - DEBUG_PRINTF_IO("%s(%04x) Device I/O <-- %08x\n", __func__, - addr, val); - } else { - switch (addr) { - case 0xCFC: - // PCI Config Mechanism 1 Ports - pci_cfg_write(addr, val, 4); - break; - default: - DEBUG_PRINTF_IO - ("%s(%04x,%08x) writing to bios_device.io_buffer\n", - __func__, addr, val); - out32le((void *) bios_device.io_buffer + addr, val); - break; - } - } -} - -u32 -pci_cfg_read(X86EMU_pioAddr addr, u8 size) -{ - u32 rval = 0xFFFFFFFF; - struct device * dev; - if ((addr >= 0xCFC) && ((addr + size) <= 0xD00)) { - // PCI Configuration Mechanism 1 step 1 - // write to 0xCF8, sets bus, device, function and Config Space offset - // later read from 0xCFC-0xCFF returns the value... - u8 bus, devfn, offs; - u32 port_cf8_val = my_inl(0xCF8); - if ((port_cf8_val & 0x80000000) != 0) { - //highest bit enables config space mapping - bus = (port_cf8_val & 0x00FF0000) >> 16; - devfn = (port_cf8_val & 0x0000FF00) >> 8; - offs = (port_cf8_val & 0x000000FF); - offs += (addr - 0xCFC); // if addr is not 0xcfc, the offset is moved accordingly - DEBUG_PRINTF_INTR("%s(): PCI Config Read from device: bus: %02x, devfn: %02x, offset: %02x\n", - __func__, bus, devfn, offs); -#if defined(CONFIG_YABEL_PCI_ACCESS_OTHER_DEVICES) && CONFIG_YABEL_PCI_ACCESS_OTHER_DEVICES==1 - dev = dev_find_slot(bus, devfn); - DEBUG_PRINTF_INTR("%s(): dev_find_slot() returned: %s\n", - __func__, dev_path(dev)); - if (dev == 0) { - // fail accesses to non-existent devices... -#else - dev = bios_device.dev; - if ((bus != bios_device.bus) - || (devfn != bios_device.devfn)) { - // fail accesses to any device but ours... -#endif - printf - ("%s(): Config read access invalid device! bus: %02x (%02x), devfn: %02x (%02x), offs: %02x\n", - __func__, bus, bios_device.bus, devfn, - bios_device.devfn, offs); - SET_FLAG(F_CF); - HALT_SYS(); - return 0; - } else { -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - switch (size) { - case 1: - rval = pci_read_config8(dev, offs); - break; - case 2: - rval = pci_read_config16(dev, offs); - break; - case 4: - rval = pci_read_config32(dev, offs); - break; - } -#else - rval = - (u32) rtas_pci_config_read(bios_device. - puid, size, - bus, devfn, - offs); -#endif - DEBUG_PRINTF_IO - ("%s(%04x) PCI Config Read @%02x, size: %d --> 0x%08x\n", - __func__, addr, offs, size, rval); - } - } - } - return rval; -} - -void -pci_cfg_write(X86EMU_pioAddr addr, u32 val, u8 size) -{ - if ((addr >= 0xCFC) && ((addr + size) <= 0xD00)) { - // PCI Configuration Mechanism 1 step 1 - // write to 0xCF8, sets bus, device, function and Config Space offset - // later write to 0xCFC-0xCFF sets the value... - u8 bus, devfn, offs; - u32 port_cf8_val = my_inl(0xCF8); - if ((port_cf8_val & 0x80000000) != 0) { - //highest bit enables config space mapping - bus = (port_cf8_val & 0x00FF0000) >> 16; - devfn = (port_cf8_val & 0x0000FF00) >> 8; - offs = (port_cf8_val & 0x000000FF); - offs += (addr - 0xCFC); // if addr is not 0xcfc, the offset is moved accordingly - if ((bus != bios_device.bus) - || (devfn != bios_device.devfn)) { - // fail accesses to any device but ours... - printf - ("Config write access invalid! PCI device %x:%x.%x, offs: %x\n", - bus, devfn >> 3, devfn & 7, offs); - HALT_SYS(); - } else { -#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL - switch (size) { - case 1: - pci_write_config8(bios_device.dev, offs, val); - break; - case 2: - pci_write_config16(bios_device.dev, offs, val); - break; - case 4: - pci_write_config32(bios_device.dev, offs, val); - break; - } -#else - rtas_pci_config_write(bios_device.puid, - size, bus, devfn, offs, - val); -#endif - DEBUG_PRINTF_IO - ("%s(%04x) PCI Config Write @%02x, size: %d <-- 0x%08x\n", - __func__, addr, offs, size, val); - } - } - } -} - -u8 -handle_port_61h(void) -{ - static u64 last_time = 0; - u64 curr_time = get_time(); - u64 time_diff; // time since last call - u32 period_ticks; // length of a period in ticks - u32 nr_periods; //number of periods passed since last call - // bit 4 should toggle with every (DRAM) refresh cycle... (66kHz??) - time_diff = curr_time - last_time; - // at 66kHz a period is ~ 15 ns long, converted to ticks: (tb_freq is ticks/second) - // TODO: as long as the frequency does not change, we should not calculate this every time - period_ticks = (15 * tb_freq) / 1000000; - nr_periods = time_diff / period_ticks; - // if the number if ticks passed since last call is odd, we toggle bit 4 - if ((nr_periods % 2) != 0) { - *((u8 *) (bios_device.io_buffer + 0x61)) ^= 0x10; - } - //finally read the value from the io_buffer - return *((u8 *) (bios_device.io_buffer + 0x61)); -} -#endif diff --git a/util/x86emu/yabel/io.h b/util/x86emu/yabel/io.h deleted file mode 100644 index 6b2dcc4504..0000000000 --- a/util/x86emu/yabel/io.h +++ /dev/null @@ -1,30 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#ifndef _BIOSEMU_IO_H_ -#define _BIOSEMU_IO_H_ -#include <x86emu/x86emu.h> -#include <types.h> - -u8 my_inb(X86EMU_pioAddr addr); - -u16 my_inw(X86EMU_pioAddr addr); - -u32 my_inl(X86EMU_pioAddr addr); - -void my_outb(X86EMU_pioAddr addr, u8 val); - -void my_outw(X86EMU_pioAddr addr, u16 val); - -void my_outl(X86EMU_pioAddr addr, u32 val); - -#endif diff --git a/util/x86emu/yabel/mem.c b/util/x86emu/yabel/mem.c deleted file mode 100644 index 8bcc9e12c2..0000000000 --- a/util/x86emu/yabel/mem.c +++ /dev/null @@ -1,493 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#include <types.h> -#include "debug.h" -#include "device.h" -#include "x86emu/x86emu.h" -#include "biosemu.h" -#include "mem.h" -#include "compat/time.h" - -// define a check for access to certain (virtual) memory regions (interrupt handlers, BIOS Data Area, ...) -#if CONFIG_X86EMU_DEBUG -static u8 in_check = 0; // to avoid recursion... -u16 ebda_segment; -u32 ebda_size; - -//TODO: these macros have grown so large, that they should be changed to an inline function, -//just for the sake of readability... - -#define DEBUG_CHECK_VMEM_READ(_addr, _rval) \ - if ((debug_flags & DEBUG_CHECK_VMEM_ACCESS) && (in_check == 0)) { \ - in_check = 1; \ - /* determine ebda_segment and size \ - * since we are using my_rdx calls, make sure, this is after setting in_check! */ \ - /* offset 03 in BDA is EBDA segment */ \ - ebda_segment = my_rdw(0x40e); \ - /* first value in ebda is size in KB */ \ - ebda_size = my_rdb(ebda_segment << 4) * 1024; \ - /* check Interrupt Vector Access (0000:0000h - 0000:0400h) */ \ - if (_addr < 0x400) { \ - DEBUG_PRINTF_CS_IP("%s: read from Interrupt Vector %x --> %x\n", \ - __func__, _addr / 4, _rval); \ - } \ - /* access to BIOS Data Area (0000:0400h - 0000:0500h)*/ \ - else if ((_addr >= 0x400) && (addr < 0x500)) { \ - DEBUG_PRINTF_CS_IP("%s: read from BIOS Data Area: addr: %x --> %x\n", \ - __func__, _addr, _rval); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* access to first 64k of memory... */ \ - else if (_addr < 0x10000) { \ - DEBUG_PRINTF_CS_IP("%s: read from segment 0000h: addr: %x --> %x\n", \ - __func__, _addr, _rval); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* read from PMM_CONV_SEGMENT */ \ - else if ((_addr <= ((PMM_CONV_SEGMENT << 4) | 0xffff)) && (_addr >= (PMM_CONV_SEGMENT << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: read from PMM Segment %04xh: addr: %x --> %x\n", \ - __func__, PMM_CONV_SEGMENT, _addr, _rval); \ - /* HALT_SYS(); */ \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* read from PNP_DATA_SEGMENT */ \ - else if ((_addr <= ((PNP_DATA_SEGMENT << 4) | 0xffff)) && (_addr >= (PNP_DATA_SEGMENT << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: read from PnP Data Segment %04xh: addr: %x --> %x\n", \ - __func__, PNP_DATA_SEGMENT, _addr, _rval); \ - /* HALT_SYS(); */ \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* read from EBDA Segment */ \ - else if ((_addr <= ((ebda_segment << 4) | (ebda_size - 1))) && (_addr >= (ebda_segment << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: read from Extended BIOS Data Area %04xh, size: %04x: addr: %x --> %x\n", \ - __func__, ebda_segment, ebda_size, _addr, _rval); \ - } \ - /* read from BIOS_DATA_SEGMENT */ \ - else if ((_addr <= ((BIOS_DATA_SEGMENT << 4) | 0xffff)) && (_addr >= (BIOS_DATA_SEGMENT << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: read from BIOS Data Segment %04xh: addr: %x --> %x\n", \ - __func__, BIOS_DATA_SEGMENT, _addr, _rval); \ - /* for PMM debugging */ \ - /*if (_addr == BIOS_DATA_SEGMENT << 4) { \ - X86EMU_trace_on(); \ - M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; \ - }*/ \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - in_check = 0; \ - } -#define DEBUG_CHECK_VMEM_WRITE(_addr, _val) \ - if ((debug_flags & DEBUG_CHECK_VMEM_ACCESS) && (in_check == 0)) { \ - in_check = 1; \ - /* determine ebda_segment and size \ - * since we are using my_rdx calls, make sure, this is after setting in_check! */ \ - /* offset 03 in BDA is EBDA segment */ \ - ebda_segment = my_rdw(0x40e); \ - /* first value in ebda is size in KB */ \ - ebda_size = my_rdb(ebda_segment << 4) * 1024; \ - /* check Interrupt Vector Access (0000:0000h - 0000:0400h) */ \ - if (_addr < 0x400) { \ - DEBUG_PRINTF_CS_IP("%s: write to Interrupt Vector %x <-- %x\n", \ - __func__, _addr / 4, _val); \ - } \ - /* access to BIOS Data Area (0000:0400h - 0000:0500h)*/ \ - else if ((_addr >= 0x400) && (addr < 0x500)) { \ - DEBUG_PRINTF_CS_IP("%s: write to BIOS Data Area: addr: %x <-- %x\n", \ - __func__, _addr, _val); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* access to first 64k of memory...*/ \ - else if (_addr < 0x10000) { \ - DEBUG_PRINTF_CS_IP("%s: write to segment 0000h: addr: %x <-- %x\n", \ - __func__, _addr, _val); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* write to PMM_CONV_SEGMENT... */ \ - else if ((_addr <= ((PMM_CONV_SEGMENT << 4) | 0xffff)) && (_addr >= (PMM_CONV_SEGMENT << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: write to PMM Segment %04xh: addr: %x <-- %x\n", \ - __func__, PMM_CONV_SEGMENT, _addr, _val); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* write to PNP_DATA_SEGMENT... */ \ - else if ((_addr <= ((PNP_DATA_SEGMENT << 4) | 0xffff)) && (_addr >= (PNP_DATA_SEGMENT << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: write to PnP Data Segment %04xh: addr: %x <-- %x\n", \ - __func__, PNP_DATA_SEGMENT, _addr, _val); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* write to EBDA Segment... */ \ - else if ((_addr <= ((ebda_segment << 4) | (ebda_size - 1))) && (_addr >= (ebda_segment << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: write to Extended BIOS Data Area %04xh, size: %04x: addr: %x <-- %x\n", \ - __func__, ebda_segment, ebda_size, _addr, _val); \ - } \ - /* write to BIOS_DATA_SEGMENT... */ \ - else if ((_addr <= ((BIOS_DATA_SEGMENT << 4) | 0xffff)) && (_addr >= (BIOS_DATA_SEGMENT << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: write to BIOS Data Segment %04xh: addr: %x <-- %x\n", \ - __func__, BIOS_DATA_SEGMENT, _addr, _val); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - /* write to current CS segment... */ \ - else if ((_addr < ((M.x86.R_CS << 4) | 0xffff)) && (_addr > (M.x86.R_CS << 4))) { \ - DEBUG_PRINTF_CS_IP("%s: write to CS segment %04xh: addr: %x <-- %x\n", \ - __func__, M.x86.R_CS, _addr, _val); \ - /* dump registers */ \ - /* x86emu_dump_xregs(); */ \ - } \ - in_check = 0; \ - } -#else -#define DEBUG_CHECK_VMEM_READ(_addr, _rval) -#define DEBUG_CHECK_VMEM_WRITE(_addr, _val) -#endif - -void update_time(u32); - -#if !defined(CONFIG_YABEL_DIRECTHW) || (!CONFIG_YABEL_DIRECTHW) -// read byte from memory -u8 -my_rdb(u32 addr) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - u8 rval; - if (translated != 0) { - //translation successfull, access VGA Memory (BAR or Legacy...) - DEBUG_PRINTF_MEM("%s(%08x): access to VGA Memory\n", - __func__, addr); - //DEBUG_PRINTF_MEM("%s(%08x): translated_addr: %llx\n", __func__, addr, translated_addr); - set_ci(); - rval = *((u8 *) translated_addr); - clr_ci(); - DEBUG_PRINTF_MEM("%s(%08x) VGA --> %02x\n", __func__, addr, - rval); - return rval; - } else if (addr > M.mem_size) { - DEBUG_PRINTF("%s(%08x): Memory Access out of range!\n", - __func__, addr); - //disassemble_forward(M.x86.saved_cs, M.x86.saved_ip, 1); - HALT_SYS(); - } else { - /* read from virtual memory */ - rval = *((u8 *) (M.mem_base + addr)); - DEBUG_CHECK_VMEM_READ(addr, rval); - return rval; - } - return -1; -} - -//read word from memory -u16 -my_rdw(u32 addr) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - u16 rval; - if (translated != 0) { - //translation successfull, access VGA Memory (BAR or Legacy...) - DEBUG_PRINTF_MEM("%s(%08x): access to VGA Memory\n", - __func__, addr); - //DEBUG_PRINTF_MEM("%s(%08x): translated_addr: %llx\n", __func__, addr, translated_addr); - // check for legacy memory, because of the remapping to BARs, the reads must - // be byte reads... - if ((addr >= 0xa0000) && (addr < 0xc0000)) { - //read bytes a using my_rdb, because of the remapping to BARs - //words may not be contiguous in memory, so we need to translate - //every address... - rval = ((u8) my_rdb(addr)) | - (((u8) my_rdb(addr + 1)) << 8); - } else { - if ((translated_addr & (u64) 0x1) == 0) { - // 16 bit aligned access... - set_ci(); - rval = in16le((void *) translated_addr); - clr_ci(); - } else { - // unaligned access, read single bytes - set_ci(); - rval = (*((u8 *) translated_addr)) | - (*((u8 *) translated_addr + 1) << 8); - clr_ci(); - } - } - DEBUG_PRINTF_MEM("%s(%08x) VGA --> %04x\n", __func__, addr, - rval); - return rval; - } else if (addr > M.mem_size) { - DEBUG_PRINTF("%s(%08x): Memory Access out of range!\n", - __func__, addr); - //disassemble_forward(M.x86.saved_cs, M.x86.saved_ip, 1); - HALT_SYS(); - } else { - /* read from virtual memory */ - rval = in16le((void *) (M.mem_base + addr)); - DEBUG_CHECK_VMEM_READ(addr, rval); - return rval; - } - return -1; -} - -//read long from memory -u32 -my_rdl(u32 addr) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - u32 rval; - if (translated != 0) { - //translation successfull, access VGA Memory (BAR or Legacy...) - DEBUG_PRINTF_MEM("%s(%x): access to VGA Memory\n", - __func__, addr); - //DEBUG_PRINTF_MEM("%s(%08x): translated_addr: %llx\n", __func__, addr, translated_addr); - // check for legacy memory, because of the remapping to BARs, the reads must - // be byte reads... - if ((addr >= 0xa0000) && (addr < 0xc0000)) { - //read bytes a using my_rdb, because of the remapping to BARs - //dwords may not be contiguous in memory, so we need to translate - //every address... - rval = ((u8) my_rdb(addr)) | - (((u8) my_rdb(addr + 1)) << 8) | - (((u8) my_rdb(addr + 2)) << 16) | - (((u8) my_rdb(addr + 3)) << 24); - } else { - if ((translated_addr & (u64) 0x3) == 0) { - // 32 bit aligned access... - set_ci(); - rval = in32le((void *) translated_addr); - clr_ci(); - } else { - // unaligned access, read single bytes - set_ci(); - rval = (*((u8 *) translated_addr)) | - (*((u8 *) translated_addr + 1) << 8) | - (*((u8 *) translated_addr + 2) << 16) | - (*((u8 *) translated_addr + 3) << 24); - clr_ci(); - } - } - DEBUG_PRINTF_MEM("%s(%08x) VGA --> %08x\n", __func__, addr, - rval); - //HALT_SYS(); - return rval; - } else if (addr > M.mem_size) { - DEBUG_PRINTF("%s(%08x): Memory Access out of range!\n", - __func__, addr); - //disassemble_forward(M.x86.saved_cs, M.x86.saved_ip, 1); - HALT_SYS(); - } else { - /* read from virtual memory */ - rval = in32le((void *) (M.mem_base + addr)); - switch (addr) { - case 0x46c: - //BDA Time Data, update it, before reading - update_time(rval); - rval = in32le((void *) (M.mem_base + addr)); - break; - } - DEBUG_CHECK_VMEM_READ(addr, rval); - return rval; - } - return -1; -} - -//write byte to memory -void -my_wrb(u32 addr, u8 val) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access VGA Memory (BAR or Legacy...) - DEBUG_PRINTF_MEM("%s(%x, %x): access to VGA Memory\n", - __func__, addr, val); - //DEBUG_PRINTF_MEM("%s(%08x): translated_addr: %llx\n", __func__, addr, translated_addr); - set_ci(); - *((u8 *) translated_addr) = val; - clr_ci(); - } else if (addr > M.mem_size) { - DEBUG_PRINTF("%s(%08x): Memory Access out of range!\n", - __func__, addr); - //disassemble_forward(M.x86.saved_cs, M.x86.saved_ip, 1); - HALT_SYS(); - } else { - /* write to virtual memory */ - DEBUG_CHECK_VMEM_WRITE(addr, val); - *((u8 *) (M.mem_base + addr)) = val; - } -} - -void -my_wrw(u32 addr, u16 val) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access VGA Memory (BAR or Legacy...) - DEBUG_PRINTF_MEM("%s(%x, %x): access to VGA Memory\n", - __func__, addr, val); - //DEBUG_PRINTF_MEM("%s(%08x): translated_addr: %llx\n", __func__, addr, translated_addr); - // check for legacy memory, because of the remapping to BARs, the reads must - // be byte reads... - if ((addr >= 0xa0000) && (addr < 0xc0000)) { - //read bytes a using my_rdb, because of the remapping to BARs - //words may not be contiguous in memory, so we need to translate - //every address... - my_wrb(addr, (u8) (val & 0x00FF)); - my_wrb(addr + 1, (u8) ((val & 0xFF00) >> 8)); - } else { - if ((translated_addr & (u64) 0x1) == 0) { - // 16 bit aligned access... - set_ci(); - out16le((void *) translated_addr, val); - clr_ci(); - } else { - // unaligned access, write single bytes - set_ci(); - *((u8 *) translated_addr) = - (u8) (val & 0x00FF); - *((u8 *) translated_addr + 1) = - (u8) ((val & 0xFF00) >> 8); - clr_ci(); - } - } - } else if (addr > M.mem_size) { - DEBUG_PRINTF("%s(%08x): Memory Access out of range!\n", - __func__, addr); - //disassemble_forward(M.x86.saved_cs, M.x86.saved_ip, 1); - HALT_SYS(); - } else { - /* write to virtual memory */ - DEBUG_CHECK_VMEM_WRITE(addr, val); - out16le((void *) (M.mem_base + addr), val); - } -} -void -my_wrl(u32 addr, u32 val) -{ - unsigned long translated_addr = addr; - u8 translated = biosemu_dev_translate_address(&translated_addr); - if (translated != 0) { - //translation successfull, access VGA Memory (BAR or Legacy...) - DEBUG_PRINTF_MEM("%s(%x, %x): access to VGA Memory\n", - __func__, addr, val); - //DEBUG_PRINTF_MEM("%s(%08x): translated_addr: %llx\n", __func__, addr, translated_addr); - // check for legacy memory, because of the remapping to BARs, the reads must - // be byte reads... - if ((addr >= 0xa0000) && (addr < 0xc0000)) { - //read bytes a using my_rdb, because of the remapping to BARs - //words may not be contiguous in memory, so we need to translate - //every address... - my_wrb(addr, (u8) (val & 0x000000FF)); - my_wrb(addr + 1, (u8) ((val & 0x0000FF00) >> 8)); - my_wrb(addr + 2, (u8) ((val & 0x00FF0000) >> 16)); - my_wrb(addr + 3, (u8) ((val & 0xFF000000) >> 24)); - } else { - if ((translated_addr & (u64) 0x3) == 0) { - // 32 bit aligned access... - set_ci(); - out32le((void *) translated_addr, val); - clr_ci(); - } else { - // unaligned access, write single bytes - set_ci(); - *((u8 *) translated_addr) = - (u8) (val & 0x000000FF); - *((u8 *) translated_addr + 1) = - (u8) ((val & 0x0000FF00) >> 8); - *((u8 *) translated_addr + 2) = - (u8) ((val & 0x00FF0000) >> 16); - *((u8 *) translated_addr + 3) = - (u8) ((val & 0xFF000000) >> 24); - clr_ci(); - } - } - } else if (addr > M.mem_size) { - DEBUG_PRINTF("%s(%08x): Memory Access out of range!\n", - __func__, addr); - //disassemble_forward(M.x86.saved_cs, M.x86.saved_ip, 1); - HALT_SYS(); - } else { - /* write to virtual memory */ - DEBUG_CHECK_VMEM_WRITE(addr, val); - out32le((void *) (M.mem_base + addr), val); - } -} -#else -u8 -my_rdb(u32 addr) -{ - return rdb(addr); -} - -u16 -my_rdw(u32 addr) -{ - return rdw(addr); -} - -u32 -my_rdl(u32 addr) -{ - return rdl(addr); -} - -void -my_wrb(u32 addr, u8 val) -{ - wrb(addr, val); -} - -void -my_wrw(u32 addr, u16 val) -{ - wrw(addr, val); -} - -void -my_wrl(u32 addr, u32 val) -{ - wrl(addr, val); -} -#endif - -//update time in BIOS Data Area -//DWord at offset 0x6c is the timer ticks since midnight, timer is running at 18Hz -//byte at 0x70 is timer overflow (set if midnight passed since last call to interrupt 1a function 00 -//cur_val is the current value, of offset 6c... -void -update_time(u32 cur_val) -{ - //for convenience, we let the start of timebase be at midnight, we currently dont support - //real daytime anyway... - u64 ticks_per_day = tb_freq * 60 * 24; - // at 18Hz a period is ~55ms, converted to ticks (tb_freq is ticks/second) - u32 period_ticks = (55 * tb_freq) / 1000; - u64 curr_time = get_time(); - u64 ticks_since_midnight = curr_time % ticks_per_day; - u32 periods_since_midnight = ticks_since_midnight / period_ticks; - // if periods since midnight is smaller than last value, set overflow - // at BDA Offset 0x70 - if (periods_since_midnight < cur_val) { - my_wrb(0x470, 1); - } - // store periods since midnight at BDA offset 0x6c - my_wrl(0x46c, periods_since_midnight); -} diff --git a/util/x86emu/yabel/mem.h b/util/x86emu/yabel/mem.h deleted file mode 100644 index dca8cfc192..0000000000 --- a/util/x86emu/yabel/mem.h +++ /dev/null @@ -1,36 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#ifndef _BIOSEMU_MEM_H_ -#define _BIOSEMU_MEM_H_ -#include <x86emu/x86emu.h> -#include <types.h> - -// read byte from memory -u8 my_rdb(u32 addr); - -//read word from memory -u16 my_rdw(u32 addr); - -//read long from memory -u32 my_rdl(u32 addr); - -//write byte to memory -void my_wrb(u32 addr, u8 val); - -//write word to memory -void my_wrw(u32 addr, u16 val); - -//write long to memory -void my_wrl(u32 addr, u32 val); - -#endif diff --git a/util/x86emu/yabel/pmm.c b/util/x86emu/yabel/pmm.c deleted file mode 100644 index ad4dc6834c..0000000000 --- a/util/x86emu/yabel/pmm.c +++ /dev/null @@ -1,442 +0,0 @@ -/**************************************************************************** - * YABEL BIOS Emulator - * - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Copyright (c) 2008 Pattrick Hueper <phueper@hueper.net> - ****************************************************************************/ - -#include <x86emu/x86emu.h> -#include "../x86emu/prim_ops.h" -#include <string.h> - -#include "biosemu.h" -#include "pmm.h" -#include "debug.h" -#include "device.h" - -/* this struct is used to remember which PMM spaces - * have been assigned. MAX_PMM_AREAS defines how many - * PMM areas we can assign. - * All areas are assigned in PMM_CONV_SEGMENT - */ -typedef struct { - u32 handle; /* handle that is returned to PMM caller */ - u32 offset; /* in PMM_CONV_SEGMENT */ - u32 length; /* length of this area */ -} pmm_allocation_t; - -#define MAX_PMM_AREAS 10 - -/* array to store the above structs */ -static pmm_allocation_t pmm_allocation_array[MAX_PMM_AREAS]; - -/* index into pmm_allocation_array */ -static u32 curr_pmm_allocation_index = 0; - -/* This function is used to setup the PMM struct in virtual memory - * at a certain offset, the length of the PMM struct is returned */ -u8 pmm_setup(u16 segment, u16 offset) -{ - /* setup the PMM structure */ - pmm_information_t *pis = - (pmm_information_t *) (M.mem_base + (((u32) segment) << 4) + - offset); - memset(pis, 0, sizeof(pmm_information_t)); - /* set signature to $PMM */ - pis->signature[0] = '$'; - pis->signature[1] = 'P'; - pis->signature[2] = 'M'; - pis->signature[3] = 'M'; - /* revision as specified */ - pis->struct_rev = 0x01; - /* internal length, excluding code */ - pis->length = ((void *)&(pis->code) - (void *)&(pis->signature)); - /* the code to be executed, pointed to by entry_point_offset */ - pis->code[0] = 0xCD; /* INT */ - pis->code[1] = PMM_INT_NUM; /* my selfdefined PMM INT number */ - pis->code[2] = 0xCB; /* RETF */ - /* set the entry_point_offset, it should point to pis->code, segment is the segment of - * this struct. Since pis->length is the length of the struct excluding code, offset+pis->length - * points to the code... it's that simple ;-) - */ - out32le(&(pis->entry_point_offset), - (u32) segment << 16 | (u32) (offset + pis->length)); - /* checksum calculation */ - u8 i; - u8 checksum = 0; - for (i = 0; i < pis->length; i++) { - checksum += *(((u8 *) pis) + i); - } - pis->checksum = ((u8) 0) - checksum; - CHECK_DBG(DEBUG_PMM) { - DEBUG_PRINTF_PMM("PMM Structure:\n"); - dump((void *)pis, sizeof(pmm_information_t)); - } - return sizeof(pmm_information_t); -} - -/* handle the selfdefined interrupt, this is executed, when the PMM Entry Point - * is executed, it must handle all PMM requests - */ -void pmm_handleInt() -{ - u32 rval = 0; - u16 function, flags; - u32 handle, length; - u32 i, j; - u32 buffer; - /* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! - * according to the PMM Spec "the flags and all registers, except DX and AX - * are preserved across calls to PMM" - * so we save M.x86 and in :exit label we restore it, however, this means that no - * returns must be used in this function, any exit must use goto exit! - * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! - */ - X86EMU_regs backup_regs = M.x86; - pop_long(); /* pop the return address, this is already saved in INT handler, we don't need - to remember this. */ - function = pop_word(); - switch (function) { - case 0: - /* function pmmAllocate */ - length = pop_long(); - length *= 16; /* length is passed in "paragraphs" of 16 bytes each */ - handle = pop_long(); - flags = pop_word(); - DEBUG_PRINTF_PMM - ("%s: pmmAllocate: Length: %x, Handle: %x, Flags: %x\n", - __func__, length, handle, flags); - if ((flags & 0x1) != 0) { - /* request to allocate in conventional memory */ - if (curr_pmm_allocation_index >= MAX_PMM_AREAS) { - printf - ("%s: pmmAllocate: Maximum Number of allocatable areas reached (%d), cannot allocate more memory!\n", - __func__, MAX_PMM_AREAS); - rval = 0; - goto exit; - } - /* some ROMs seem to be confused by offset 0, so lets start at 0x100 */ - u32 next_offset = 0x100; - pmm_allocation_t *pmm_alloc = - &(pmm_allocation_array[curr_pmm_allocation_index]); - if (curr_pmm_allocation_index != 0) { - /* we have already allocated... get the new next_offset - * from the previous pmm_allocation_t */ - next_offset = - pmm_allocation_array - [curr_pmm_allocation_index - 1].offset + - pmm_allocation_array - [curr_pmm_allocation_index - 1].length; - } - DEBUG_PRINTF_PMM("%s: next_offset: 0x%x\n", - __func__, next_offset); - if (length == 0) { - /* largest possible block size requested, we have on segment - * to allocate, so largest possible is segment size (0xFFFF) - * minus next_offset - */ - rval = 0xFFFF - next_offset; - goto exit; - } - u32 align = 0; - if (((flags & 0x4) != 0) && (length > 0)) { - /* align to least significant bit set in length param */ - u8 lsb = 0; - while (((length >> lsb) & 0x1) == 0) { - lsb++; - } - align = 1 << lsb; - } - /* always align at least to paragraph (16byte) boundary - * hm... since the length is always in paragraphs, we cannot - * align outside of paragraphs anyway... so this check might - * be unnecessary...*/ - if (align < 0x10) { - align = 0x10; - } - DEBUG_PRINTF_PMM("%s: align: 0x%x\n", __func__, - align); - if ((next_offset & (align - 1)) != 0) { - /* not yet aligned... align! */ - next_offset += align; - next_offset &= ~(align - 1); - } - if ((next_offset + length) > 0xFFFF) { - rval = 0; - printf - ("%s: pmmAllocate: Not enough memory available for allocation!\n", - __func__); - goto exit; - } - curr_pmm_allocation_index++; - /* remember the values in pmm_allocation_array */ - pmm_alloc->handle = handle; - pmm_alloc->offset = next_offset; - pmm_alloc->length = length; - /* return the 32bit "physical" address, i.e. combination of segment and offset */ - rval = ((u32) (PMM_CONV_SEGMENT << 16)) | next_offset; - DEBUG_PRINTF_PMM - ("%s: pmmAllocate: allocated memory at %x\n", - __func__, rval); - } else { - rval = 0; - printf - ("%s: pmmAllocate: allocation in extended memory not supported!\n", - __func__); - } - goto exit; - case 1: - /* function pmmFind */ - handle = pop_long(); /* the handle to lookup */ - DEBUG_PRINTF_PMM("%s: pmmFind: Handle: %x\n", __func__, - handle); - i = 0; - for (i = 0; i < curr_pmm_allocation_index; i++) { - if (pmm_allocation_array[i].handle == handle) { - DEBUG_PRINTF_PMM - ("%s: pmmFind: found allocated memory at %x\n", - __func__, rval); - /* return the 32bit "physical" address, i.e. combination of segment and offset */ - rval = - ((u32) (PMM_CONV_SEGMENT << 16)) | - pmm_allocation_array[i].offset; - } - } - if (rval == 0) { - DEBUG_PRINTF_PMM - ("%s: pmmFind: handle (%x) not found!\n", - __func__, handle); - } - goto exit; - case 2: - /* function pmmDeallocate */ - buffer = pop_long(); - /* since argument is the address of the PMM block (including the segment, - * we need to remove the segment to get the offset - */ - buffer = buffer ^ ((u32) PMM_CONV_SEGMENT << 16); - DEBUG_PRINTF_PMM("%s: pmmDeallocate: PMM segment offset: %x\n", - __func__, buffer); - i = 0; - /* rval = 0 means we deallocated the buffer, so set it to 1 in case we dont find it and - * thus cannot deallocate - */ - rval = 1; - for (i = 0; i < curr_pmm_allocation_index; i++) { - DEBUG_PRINTF_PMM("%d: %x\n", i, - pmm_allocation_array[i].handle); - if (pmm_allocation_array[i].offset == buffer) { - /* we found the requested buffer, rval = 0 */ - rval = 0; - DEBUG_PRINTF_PMM - ("%s: pmmDeallocate: found allocated memory at index: %d\n", - __func__, i); - /* copy the remaining elements in pmm_allocation_array one position up */ - j = i; - for (; j < curr_pmm_allocation_index; j++) { - pmm_allocation_array[j] = - pmm_allocation_array[j + 1]; - } - /* move curr_pmm_allocation_index one up, too */ - curr_pmm_allocation_index--; - /* finally clean last element */ - pmm_allocation_array[curr_pmm_allocation_index]. - handle = 0; - pmm_allocation_array[curr_pmm_allocation_index]. - offset = 0; - pmm_allocation_array[curr_pmm_allocation_index]. - length = 0; - break; - } - } - if (rval != 0) { - DEBUG_PRINTF_PMM - ("%s: pmmDeallocate: offset (%x) not found, cannot deallocate!\n", - __func__, buffer); - } - goto exit; - default: - /* invalid/unimplemented function */ - printf("%s: invalid PMM function (0x%04x) called!\n", - __func__, function); - /* PMM spec says if function is invalid, return 0xFFFFFFFF */ - rval = 0xFFFFFFFF; - goto exit; - } - exit: - /* exit handler of this function, restore registers, put return value in DX:AX */ - M.x86 = backup_regs; - M.x86.R_DX = (u16) ((rval >> 16) & 0xFFFF); - M.x86.R_AX = (u16) (rval & 0xFFFF); - CHECK_DBG(DEBUG_PMM) { - DEBUG_PRINTF_PMM("%s: dump of pmm_allocation_array:\n", - __func__); - for (i = 0; i < MAX_PMM_AREAS; i++) { - DEBUG_PRINTF_PMM - ("%d:\n\thandle: %x\n\toffset: %x\n\tlength: %x\n", - i, pmm_allocation_array[i].handle, - pmm_allocation_array[i].offset, - pmm_allocation_array[i].length); - } - } - return; -} - -/* This function tests the pmm_handleInt() function above. */ -void pmm_test(void) -{ - u32 handle, length, addr; - u16 function, flags; - /*-------------------- Test simple allocation/find/deallocation ----------------------------- */ - function = 0; /* pmmAllocate */ - handle = 0xdeadbeef; - length = 16; /* in 16byte paragraphs, so we allocate 256 bytes... */ - flags = 0x1; /* conventional memory, unaligned */ - /* setup stack for call to pmm_handleInt() */ - push_word(flags); - push_long(handle); - push_long(length); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - DEBUG_PRINTF_PMM("%s: allocated memory at: %04x:%04x\n", __func__, - M.x86.R_DX, M.x86.R_AX); - function = 1; /* pmmFind */ - push_long(handle); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - DEBUG_PRINTF_PMM("%s: found memory at: %04x:%04x (expected: %08x)\n", - __func__, M.x86.R_DX, M.x86.R_AX, addr); - function = 2; /* pmmDeallocate */ - push_long(addr); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - DEBUG_PRINTF_PMM - ("%s: freed memory rval: %04x:%04x (expected: 0000:0000)\n", - __func__, M.x86.R_DX, M.x86.R_AX); - /*-------------------- Test aligned allocation/deallocation ----------------------------- */ - function = 0; /* pmmAllocate */ - handle = 0xdeadbeef; - length = 257; /* in 16byte paragraphs, so we allocate 4KB + 16 bytes... */ - flags = 0x1; /* conventional memory, unaligned */ - /* setup stack for call to pmm_handleInt() */ - push_word(flags); - push_long(handle); - push_long(length); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - DEBUG_PRINTF_PMM("%s: allocated memory at: %04x:%04x\n", __func__, - M.x86.R_DX, M.x86.R_AX); - function = 0; /* pmmAllocate */ - handle = 0xf00d4b0b; - length = 128; /* in 16byte paragraphs, so we allocate 2KB... */ - flags = 0x5; /* conventional memory, aligned */ - /* setup stack for call to pmm_handleInt() */ - push_word(flags); - push_long(handle); - push_long(length); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - /* the address should be aligned to 0x800, so probably it is at offset 0x1800... */ - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - DEBUG_PRINTF_PMM("%s: allocated memory at: %04x:%04x\n", __func__, - M.x86.R_DX, M.x86.R_AX); - function = 1; /* pmmFind */ - push_long(handle); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - function = 2; /* pmmDeallocate */ - push_long(addr); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - DEBUG_PRINTF_PMM - ("%s: freed memory rval: %04x:%04x (expected: 0000:0000)\n", - __func__, M.x86.R_DX, M.x86.R_AX); - handle = 0xdeadbeef; - function = 1; /* pmmFind */ - push_long(handle); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - function = 2; /* pmmDeallocate */ - push_long(addr); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - DEBUG_PRINTF_PMM - ("%s: freed memory rval: %04x:%04x (expected: 0000:0000)\n", - __func__, M.x86.R_DX, M.x86.R_AX); - /*-------------------- Test out of memory allocation ----------------------------- */ - function = 0; /* pmmAllocate */ - handle = 0xdeadbeef; - length = 0; /* length zero means, give me the largest possible block */ - flags = 0x1; /* conventional memory, unaligned */ - /* setup stack for call to pmm_handleInt() */ - push_word(flags); - push_long(handle); - push_long(length); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - length = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - length /= 16; /* length in paragraphs */ - DEBUG_PRINTF_PMM("%s: largest possible length: %08x\n", __func__, - length); - function = 0; /* pmmAllocate */ - flags = 0x1; /* conventional memory, aligned */ - /* setup stack for call to pmm_handleInt() */ - push_word(flags); - push_long(handle); - push_long(length); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - DEBUG_PRINTF_PMM("%s: allocated memory at: %04x:%04x\n", __func__, - M.x86.R_DX, M.x86.R_AX); - function = 0; /* pmmAllocate */ - length = 1; - handle = 0xf00d4b0b; - flags = 0x1; /* conventional memory, aligned */ - /* setup stack for call to pmm_handleInt() */ - push_word(flags); - push_long(handle); - push_long(length); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - /* this should fail, so 0x0 should be returned */ - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - DEBUG_PRINTF_PMM - ("%s: allocated memory at: %04x:%04x expected: 0000:0000\n", - __func__, M.x86.R_DX, M.x86.R_AX); - handle = 0xdeadbeef; - function = 1; /* pmmFind */ - push_long(handle); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - addr = ((u32) M.x86.R_DX << 16) | M.x86.R_AX; - function = 2; /* pmmDeallocate */ - push_long(addr); - push_word(function); - push_long(0); /* This is the return address for the ABI, unused in this implementation */ - pmm_handleInt(); - DEBUG_PRINTF_PMM - ("%s: freed memory rval: %04x:%04x (expected: 0000:0000)\n", - __func__, M.x86.R_DX, M.x86.R_AX); -} diff --git a/util/x86emu/yabel/pmm.h b/util/x86emu/yabel/pmm.h deleted file mode 100644 index 95645dffdc..0000000000 --- a/util/x86emu/yabel/pmm.h +++ /dev/null @@ -1,46 +0,0 @@ -/**************************************************************************** - * YABEL BIOS Emulator - * - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Copyright (c) 2008 Pattrick Hueper <phueper@hueper.net> - ****************************************************************************/ - -#ifndef _YABEL_PMM_H_ -#define _YABEL_PMM_H_ - -#include <types.h> - -/* PMM Structure see PMM Spec Version 1.01 Chapter 3.1.1 - * (search web for specspmm101.pdf) - */ -typedef struct { - u8 signature[4]; - u8 struct_rev; - u8 length; - u8 checksum; - u32 entry_point_offset; - u8 reserved[5]; - /* Code is not part of the speced PMM struct, however, since I cannot - * put the handling of PMM in the virtual memory (I dont want to hack it - * together in x86 assembly ;-)) this code array is pointed to by - * entry_point_offset, in code there is only a INT call and a RETF, - * thus every PMM call will issue a PMM INT (only defined in YABEL, - * see interrupt.c) and the INT Handler will do the actual PMM work. - */ - u8 code[3]; -} __attribute__ ((__packed__)) pmm_information_t; - -/* This function is used to setup the PMM struct in virtual memory - * at a certain offset */ -u8 pmm_setup(u16 segment, u16 offset); - -/* This is the INT Handler mentioned above, called by my special PMM INT. */ -void pmm_handleInt(void); - -void pmm_test(void); - -#endif // _YABEL_PMM_H diff --git a/util/x86emu/yabel/vbe.c b/util/x86emu/yabel/vbe.c deleted file mode 100644 index 6326a9c214..0000000000 --- a/util/x86emu/yabel/vbe.c +++ /dev/null @@ -1,852 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net> - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#include <string.h> -#include <types.h> -#if CONFIG_BOOTSPLASH -#include <boot/coreboot_tables.h> -#endif - -#include <arch/byteorder.h> -#define ntohl(x) be32_to_cpu(x) - -#include "debug.h" - -#include <x86emu/x86emu.h> -#include <x86emu/regs.h> -#include "../x86emu/prim_ops.h" - -#include "biosemu.h" -#include "io.h" -#include "mem.h" -#include "interrupt.h" -#include "device.h" - -#include <cbfs.h> - -#include <delay.h> -#include "../../src/lib/jpeg.h" - -// pointer to VBEInfoBuffer, set by vbe_prepare -u8 *vbe_info_buffer = 0; - -// virtual BIOS Memory -u8 *biosmem; -u32 biosmem_size; - -// these structs are for input from and output to OF -typedef struct { - u8 display_type; // 0=NONE, 1= analog, 2=digital - u16 screen_width; - u16 screen_height; - u16 screen_linebytes; // bytes per line in framebuffer, may be more than screen_width - u8 color_depth; // color depth in bpp - u32 framebuffer_address; - u8 edid_block_zero[128]; -} __attribute__ ((__packed__)) screen_info_t; - -typedef struct { - u8 signature[4]; - u16 size_reserved; - u8 monitor_number; - u16 max_screen_width; - u8 color_depth; -} __attribute__ ((__packed__)) screen_info_input_t; - -// these structs only store a subset of the VBE defined fields -// only those needed. -typedef struct { - char signature[4]; - u16 version; - u8 *oem_string_ptr; - u32 capabilities; - u16 video_mode_list[256]; // lets hope we never have more than 256 video modes... - u16 total_memory; -} vbe_info_t; - -typedef struct { - u16 mode_attributes; // 00 - u8 win_a_attributes; // 02 - u8 win_b_attributes; // 03 - u16 win_granularity; // 04 - u16 win_size; // 06 - u16 win_a_segment; // 08 - u16 win_b_segment; // 0a - u32 win_func_ptr; // 0c - u16 bytes_per_scanline; // 10 - u16 x_resolution; // 12 - u16 y_resolution; // 14 - u8 x_charsize; // 16 - u8 y_charsize; // 17 - u8 number_of_planes; // 18 - u8 bits_per_pixel; // 19 - u8 number_of_banks; // 20 - u8 memory_model; // 21 - u8 bank_size; // 22 - u8 number_of_image_pages; // 23 - u8 reserved_page; - u8 red_mask_size; - u8 red_mask_pos; - u8 green_mask_size; - u8 green_mask_pos; - u8 blue_mask_size; - u8 blue_mask_pos; - u8 reserved_mask_size; - u8 reserved_mask_pos; - u8 direct_color_mode_info; - u32 phys_base_ptr; - u32 offscreen_mem_offset; - u16 offscreen_mem_size; - u8 reserved[206]; -} __attribute__ ((__packed__)) vesa_mode_info_t; - -typedef struct { - u16 video_mode; - union { - vesa_mode_info_t vesa; - u8 mode_info_block[256]; - }; - // our crap - //u16 attributes; - //u16 linebytes; - //u16 x_resolution; - //u16 y_resolution; - //u8 x_charsize; - //u8 y_charsize; - //u8 bits_per_pixel; - //u8 memory_model; - //u32 framebuffer_address; -} vbe_mode_info_t; - -typedef struct { - u8 port_number; // i.e. monitor number - u8 edid_transfer_time; - u8 ddc_level; - u8 edid_block_zero[128]; -} vbe_ddc_info_t; - -static inline u8 -vbe_prepare(void) -{ - vbe_info_buffer = biosmem + (VBE_SEGMENT << 4); // segment:offset off VBE Data Area - //clear buffer - memset(vbe_info_buffer, 0, 512); - //set VbeSignature to "VBE2" to indicate VBE 2.0+ request - vbe_info_buffer[0] = 'V'; - vbe_info_buffer[0] = 'B'; - vbe_info_buffer[0] = 'E'; - vbe_info_buffer[0] = '2'; - // ES:DI store pointer to buffer in virtual mem see vbe_info_buffer above... - M.x86.R_EDI = 0x0; - M.x86.R_ES = VBE_SEGMENT; - - return 0; // successfull init -} - -// VBE Function 00h -static u8 -vbe_info(vbe_info_t * info) -{ - vbe_prepare(); - // call VBE function 00h (Info Function) - M.x86.R_EAX = 0x4f00; - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE("%s: VBE Info Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: VBE Info Function Return Code NOT OK! AH=%x\n", - __func__, M.x86.R_AH); - return M.x86.R_AH; - } - //printf("VBE Info Dump:"); - //dump(vbe_info_buffer, 64); - - //offset 0: signature - info->signature[0] = vbe_info_buffer[0]; - info->signature[1] = vbe_info_buffer[1]; - info->signature[2] = vbe_info_buffer[2]; - info->signature[3] = vbe_info_buffer[3]; - - // offset 4: 16bit le containing VbeVersion - info->version = in16le(vbe_info_buffer + 4); - - // offset 6: 32bit le containg segment:offset of OEM String in virtual Mem. - info->oem_string_ptr = - biosmem + ((in16le(vbe_info_buffer + 8) << 4) + - in16le(vbe_info_buffer + 6)); - - // offset 10: 32bit le capabilities - info->capabilities = in32le(vbe_info_buffer + 10); - - // offset 14: 32 bit le containing segment:offset of supported video mode table - u16 *video_mode_ptr; - video_mode_ptr = - (u16 *) (biosmem + - ((in16le(vbe_info_buffer + 16) << 4) + - in16le(vbe_info_buffer + 14))); - u32 i = 0; - do { - info->video_mode_list[i] = in16le(video_mode_ptr + i); - i++; - } - while ((i < - (sizeof(info->video_mode_list) / - sizeof(info->video_mode_list[0]))) - && (info->video_mode_list[i - 1] != 0xFFFF)); - - //offset 18: 16bit le total memory in 64KB blocks - info->total_memory = in16le(vbe_info_buffer + 18); - - return 0; -} - -// VBE Function 01h -static u8 -vbe_get_mode_info(vbe_mode_info_t * mode_info) -{ - vbe_prepare(); - // call VBE function 01h (Return VBE Mode Info Function) - M.x86.R_EAX = 0x4f01; - M.x86.R_CX = mode_info->video_mode; - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE - ("%s: VBE Return Mode Info Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: VBE Return Mode Info (mode: %04x) Function Return Code NOT OK! AH=%02x\n", - __func__, mode_info->video_mode, M.x86.R_AH); - return M.x86.R_AH; - } - - //pointer to mode_info_block is in ES:DI - memcpy(mode_info->mode_info_block, - biosmem + ((M.x86.R_ES << 4) + M.x86.R_DI), - sizeof(mode_info->mode_info_block)); - - //printf("Mode Info Dump:"); - //dump(mode_info_block, 64); - - return 0; -} - -// VBE Function 02h -static u8 -vbe_set_mode(vbe_mode_info_t * mode_info) -{ - vbe_prepare(); - // call VBE function 02h (Set VBE Mode Function) - M.x86.R_EAX = 0x4f02; - M.x86.R_BX = mode_info->video_mode; - M.x86.R_BX |= 0x4000; // set bit 14 to request linear framebuffer mode - M.x86.R_BX &= 0x7FFF; // clear bit 15 to request clearing of framebuffer - - DEBUG_PRINTF_VBE("%s: setting mode: 0x%04x\n", __func__, - M.x86.R_BX); - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE - ("%s: VBE Set Mode Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: mode: %x VBE Set Mode Function Return Code NOT OK! AH=%x\n", - __func__, mode_info->video_mode, M.x86.R_AH); - return M.x86.R_AH; - } - return 0; -} - -//VBE Function 08h -static u8 -vbe_set_palette_format(u8 format) -{ - vbe_prepare(); - // call VBE function 09h (Set/Get Palette Data Function) - M.x86.R_EAX = 0x4f08; - M.x86.R_BL = 0x00; // set format - M.x86.R_BH = format; - - DEBUG_PRINTF_VBE("%s: setting palette format: %d\n", __func__, - format); - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE - ("%s: VBE Set Palette Format Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: VBE Set Palette Format Function Return Code NOT OK! AH=%x\n", - __func__, M.x86.R_AH); - return M.x86.R_AH; - } - return 0; -} - -// VBE Function 09h -static u8 -vbe_set_color(u16 color_number, u32 color_value) -{ - vbe_prepare(); - // call VBE function 09h (Set/Get Palette Data Function) - M.x86.R_EAX = 0x4f09; - M.x86.R_BL = 0x00; // set color - M.x86.R_CX = 0x01; // set only one entry - M.x86.R_DX = color_number; - // ES:DI is address where color_value is stored, we store it at 2000:0000 - M.x86.R_ES = 0x2000; - M.x86.R_DI = 0x0; - - // store color value at ES:DI - out32le(biosmem + (M.x86.R_ES << 4) + M.x86.R_DI, color_value); - - DEBUG_PRINTF_VBE("%s: setting color #%x: 0x%04x\n", __func__, - color_number, color_value); - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE - ("%s: VBE Set Palette Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: VBE Set Palette Function Return Code NOT OK! AH=%x\n", - __func__, M.x86.R_AH); - return M.x86.R_AH; - } - return 0; -} - -static u8 -vbe_get_color(u16 color_number, u32 * color_value) -{ - vbe_prepare(); - // call VBE function 09h (Set/Get Palette Data Function) - M.x86.R_EAX = 0x4f09; - M.x86.R_BL = 0x00; // get color - M.x86.R_CX = 0x01; // get only one entry - M.x86.R_DX = color_number; - // ES:DI is address where color_value is stored, we store it at 2000:0000 - M.x86.R_ES = 0x2000; - M.x86.R_DI = 0x0; - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE - ("%s: VBE Set Palette Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: VBE Set Palette Function Return Code NOT OK! AH=%x\n", - __func__, M.x86.R_AH); - return M.x86.R_AH; - } - // read color value from ES:DI - *color_value = in32le(biosmem + (M.x86.R_ES << 4) + M.x86.R_DI); - - DEBUG_PRINTF_VBE("%s: getting color #%x --> 0x%04x\n", __func__, - color_number, *color_value); - - return 0; -} - -// VBE Function 15h -static u8 -vbe_get_ddc_info(vbe_ddc_info_t * ddc_info) -{ - vbe_prepare(); - // call VBE function 15h (DDC Info Function) - M.x86.R_EAX = 0x4f15; - M.x86.R_BL = 0x00; // get DDC Info - M.x86.R_CX = ddc_info->port_number; - M.x86.R_ES = 0x0; - M.x86.R_DI = 0x0; - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE - ("%s: VBE Get DDC Info Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: port: %x VBE Get DDC Info Function Return Code NOT OK! AH=%x\n", - __func__, ddc_info->port_number, M.x86.R_AH); - return M.x86.R_AH; - } - // BH = approx. time in seconds to transfer one EDID block - ddc_info->edid_transfer_time = M.x86.R_BH; - // BL = DDC Level - ddc_info->ddc_level = M.x86.R_BL; - - vbe_prepare(); - // call VBE function 15h (DDC Info Function) - M.x86.R_EAX = 0x4f15; - M.x86.R_BL = 0x01; // read EDID - M.x86.R_CX = ddc_info->port_number; - M.x86.R_DX = 0x0; // block number - // ES:DI is address where EDID is stored, we store it at 2000:0000 - M.x86.R_ES = 0x2000; - M.x86.R_DI = 0x0; - - // enable trace - CHECK_DBG(DEBUG_TRACE_X86EMU) { - X86EMU_trace_on(); - } - // run VESA Interrupt - runInt10(); - - if (M.x86.R_AL != 0x4f) { - DEBUG_PRINTF_VBE - ("%s: VBE Read EDID Function NOT supported! AL=%x\n", - __func__, M.x86.R_AL); - return -1; - } - - if (M.x86.R_AH != 0x0) { - DEBUG_PRINTF_VBE - ("%s: port: %x VBE Read EDID Function Return Code NOT OK! AH=%x\n", - __func__, ddc_info->port_number, M.x86.R_AH); - return M.x86.R_AH; - } - - memcpy(ddc_info->edid_block_zero, - biosmem + (M.x86.R_ES << 4) + M.x86.R_DI, - sizeof(ddc_info->edid_block_zero)); - - return 0; -} - -static u32 -vbe_get_info(void) -{ - u8 rval; - int i; - - // XXX FIXME these need to be filled with sane values - - // get a copy of input struct... - screen_info_input_t input; - // output is pointer to the address passed as argv[4] - screen_info_t local_output; - screen_info_t *output = &local_output; - // zero input - memset(&input, 0, sizeof(screen_info_input_t)); - // zero output - memset(&output, 0, sizeof(screen_info_t)); - - vbe_info_t info; - rval = vbe_info(&info); - if (rval != 0) - return rval; - - DEBUG_PRINTF_VBE("VbeSignature: %s\n", info.signature); - DEBUG_PRINTF_VBE("VbeVersion: 0x%04x\n", info.version); - DEBUG_PRINTF_VBE("OemString: %s\n", info.oem_string_ptr); - DEBUG_PRINTF_VBE("Capabilities:\n"); - DEBUG_PRINTF_VBE("\tDAC: %s\n", - (info.capabilities & 0x1) == - 0 ? "fixed 6bit" : "switchable 6/8bit"); - DEBUG_PRINTF_VBE("\tVGA: %s\n", - (info.capabilities & 0x2) == - 0 ? "compatible" : "not compatible"); - DEBUG_PRINTF_VBE("\tRAMDAC: %s\n", - (info.capabilities & 0x4) == - 0 ? "normal" : "use blank bit in Function 09h"); - - // argv[4] may be a pointer with enough space to return screen_info_t - // as input, it must contain a screen_info_input_t with the following content: - // byte[0:3] = "DDC\0" (zero-terminated signature header) - // byte[4:5] = reserved space for the return struct... just in case we ever change - // the struct and dont have reserved enough memory (and let's hope the struct - // never gets larger than 64KB) - // byte[6] = monitor port number for DDC requests ("only" one byte... so lets hope we never have more than 255 monitors... - // byte[7:8] = max. screen width (OF may want to limit this) - // byte[9] = required color depth in bpp - if (strncmp((char *) input.signature, "DDC", 4) != 0) { - printf - ("%s: Invalid input signature! expected: %s, is: %s\n", - __func__, "DDC", input.signature); - return -1; - } - if (input.size_reserved != sizeof(screen_info_t)) { - printf - ("%s: Size of return struct is wrong, required: %d, available: %d\n", - __func__, (int) sizeof(screen_info_t), - input.size_reserved); - return -1; - } - - vbe_ddc_info_t ddc_info; - ddc_info.port_number = input.monitor_number; - vbe_get_ddc_info(&ddc_info); - -#if 0 - DEBUG_PRINTF_VBE("DDC: edid_tranfer_time: %d\n", - ddc_info.edid_transfer_time); - DEBUG_PRINTF_VBE("DDC: ddc_level: %x\n", ddc_info.ddc_level); - DEBUG_PRINTF_VBE("DDC: EDID: \n"); - CHECK_DBG(DEBUG_VBE) { - dump(ddc_info.edid_block_zero, - sizeof(ddc_info.edid_block_zero)); - } -#endif -/* This could fail because of alignment issues, so use a longer form. - *((u64 *) ddc_info.edid_block_zero) != (u64) 0x00FFFFFFFFFFFF00ULL -*/ - if (ddc_info.edid_block_zero[0] != 0x00 || - ddc_info.edid_block_zero[1] != 0xFF || - ddc_info.edid_block_zero[2] != 0xFF || - ddc_info.edid_block_zero[3] != 0xFF || - ddc_info.edid_block_zero[4] != 0xFF || - ddc_info.edid_block_zero[5] != 0xFF || - ddc_info.edid_block_zero[6] != 0xFF || - ddc_info.edid_block_zero[7] != 0x00 ) { - // invalid EDID signature... probably no monitor - - output->display_type = 0x0; - return 0; - } else if ((ddc_info.edid_block_zero[20] & 0x80) != 0) { - // digital display - output->display_type = 2; - } else { - // analog - output->display_type = 1; - } - DEBUG_PRINTF_VBE("DDC: found display type %d\n", output->display_type); - memcpy(output->edid_block_zero, ddc_info.edid_block_zero, - sizeof(ddc_info.edid_block_zero)); - i = 0; - vbe_mode_info_t mode_info; - vbe_mode_info_t best_mode_info; - // initialize best_mode to 0 - memset(&best_mode_info, 0, sizeof(best_mode_info)); - while ((mode_info.video_mode = info.video_mode_list[i]) != 0xFFFF) { - //DEBUG_PRINTF_VBE("%x: Mode: %04x\n", i, mode_info.video_mode); - vbe_get_mode_info(&mode_info); - - // FIXME all these values are little endian! - - DEBUG_PRINTF_VBE("Video Mode 0x%04x available, %s\n", - mode_info.video_mode, - (le16_to_cpu(mode_info.vesa.mode_attributes) & 0x1) == - 0 ? "not supported" : "supported"); - DEBUG_PRINTF_VBE("\tTTY: %s\n", - (le16_to_cpu(mode_info.vesa.mode_attributes) & 0x4) == - 0 ? "no" : "yes"); - DEBUG_PRINTF_VBE("\tMode: %s %s\n", - (le16_to_cpu(mode_info.vesa.mode_attributes) & 0x8) == - 0 ? "monochrome" : "color", - (le16_to_cpu(mode_info.vesa.mode_attributes) & 0x10) == - 0 ? "text" : "graphics"); - DEBUG_PRINTF_VBE("\tVGA: %s\n", - (le16_to_cpu(mode_info.vesa.mode_attributes) & 0x20) == - 0 ? "compatible" : "not compatible"); - DEBUG_PRINTF_VBE("\tWindowed Mode: %s\n", - (le16_to_cpu(mode_info.vesa.mode_attributes) & 0x40) == - 0 ? "yes" : "no"); - DEBUG_PRINTF_VBE("\tFramebuffer: %s\n", - (le16_to_cpu(mode_info.vesa.mode_attributes) & 0x80) == - 0 ? "no" : "yes"); - DEBUG_PRINTF_VBE("\tResolution: %dx%d\n", - le16_to_cpu(mode_info.vesa.x_resolution), - le16_to_cpu(mode_info.vesa.y_resolution)); - DEBUG_PRINTF_VBE("\tChar Size: %dx%d\n", - mode_info.vesa.x_charsize, mode_info.vesa.y_charsize); - DEBUG_PRINTF_VBE("\tColor Depth: %dbpp\n", - mode_info.vesa.bits_per_pixel); - DEBUG_PRINTF_VBE("\tMemory Model: 0x%x\n", - mode_info.vesa.memory_model); - DEBUG_PRINTF_VBE("\tFramebuffer Offset: %08x\n", - le32_to_cpu(mode_info.vesa.phys_base_ptr)); - - if ((mode_info.vesa.bits_per_pixel == input.color_depth) - && (le16_to_cpu(mode_info.vesa.x_resolution) <= input.max_screen_width) - && ((le16_to_cpu(mode_info.vesa.mode_attributes) & 0x80) != 0) // framebuffer mode - && ((le16_to_cpu(mode_info.vesa.mode_attributes) & 0x10) != 0) // graphics - && ((le16_to_cpu(mode_info.vesa.mode_attributes) & 0x8) != 0) // color - && (le16_to_cpu(mode_info.vesa.x_resolution) > le16_to_cpu(best_mode_info.vesa.x_resolution))) // better than previous best_mode - { - // yiiiihaah... we found a new best mode - memcpy(&best_mode_info, &mode_info, sizeof(mode_info)); - } - i++; - } - - if (best_mode_info.video_mode != 0) { - DEBUG_PRINTF_VBE - ("Best Video Mode found: 0x%x, %dx%d, %dbpp, framebuffer_address: 0x%x\n", - best_mode_info.video_mode, - best_mode_info.vesa.x_resolution, - best_mode_info.vesa.y_resolution, - best_mode_info.vesa.bits_per_pixel, - le32_to_cpu(best_mode_info.vesa.phys_base_ptr)); - - //printf("Mode Info Dump:"); - //dump(best_mode_info.mode_info_block, 64); - - // set the video mode - vbe_set_mode(&best_mode_info); - - if ((info.capabilities & 0x1) != 0) { - // switch to 8 bit palette format - vbe_set_palette_format(8); - } - // setup a palette: - // - first 216 colors are mixed colors for each component in 6 steps - // (6*6*6=216) - // - then 10 shades of the three primary colors - // - then 10 shades of grey - // ------- - // = 256 colors - // - // - finally black is color 0 and white color FF (because SLOF expects it - // this way...) - // this resembles the palette that the kernel/X Server seems to expect... - - u8 mixed_color_values[6] = - { 0xFF, 0xDA, 0xB3, 0x87, 0x54, 0x00 }; - u8 primary_color_values[10] = - { 0xF3, 0xE7, 0xCD, 0xC0, 0xA5, 0x96, 0x77, 0x66, 0x3F, - 0x27 - }; - u8 mc_size = sizeof(mixed_color_values); - u8 prim_size = sizeof(primary_color_values); - - u8 curr_color_index; - u32 curr_color; - - u8 r, g, b; - // 216 mixed colors - for (r = 0; r < mc_size; r++) { - for (g = 0; g < mc_size; g++) { - for (b = 0; b < mc_size; b++) { - curr_color_index = - (r * mc_size * mc_size) + - (g * mc_size) + b; - curr_color = 0; - curr_color |= ((u32) mixed_color_values[r]) << 16; //red value - curr_color |= ((u32) mixed_color_values[g]) << 8; //green value - curr_color |= (u32) mixed_color_values[b]; //blue value - vbe_set_color(curr_color_index, - curr_color); - } - } - } - - // 10 shades of each primary color - // red - for (r = 0; r < prim_size; r++) { - curr_color_index = mc_size * mc_size * mc_size + r; - curr_color = ((u32) primary_color_values[r]) << 16; - vbe_set_color(curr_color_index, curr_color); - } - //green - for (g = 0; g < prim_size; g++) { - curr_color_index = - mc_size * mc_size * mc_size + prim_size + g; - curr_color = ((u32) primary_color_values[g]) << 8; - vbe_set_color(curr_color_index, curr_color); - } - //blue - for (b = 0; b < prim_size; b++) { - curr_color_index = - mc_size * mc_size * mc_size + prim_size * 2 + b; - curr_color = (u32) primary_color_values[b]; - vbe_set_color(curr_color_index, curr_color); - } - // 10 shades of grey - for (i = 0; i < prim_size; i++) { - curr_color_index = - mc_size * mc_size * mc_size + prim_size * 3 + i; - curr_color = 0; - curr_color |= ((u32) primary_color_values[i]) << 16; //red - curr_color |= ((u32) primary_color_values[i]) << 8; //green - curr_color |= ((u32) primary_color_values[i]); //blue - vbe_set_color(curr_color_index, curr_color); - } - - // SLOF is using color 0x0 (black) and 0xFF (white) to draw to the screen... - vbe_set_color(0x00, 0x00000000); - vbe_set_color(0xFF, 0x00FFFFFF); - - output->screen_width = le16_to_cpu(best_mode_info.vesa.x_resolution); - output->screen_height = le16_to_cpu(best_mode_info.vesa.y_resolution); - output->screen_linebytes = le16_to_cpu(best_mode_info.vesa.bytes_per_scanline); - output->color_depth = best_mode_info.vesa.bits_per_pixel; - output->framebuffer_address = - le32_to_cpu(best_mode_info.vesa.phys_base_ptr); - } else { - printf("%s: No suitable video mode found!\n", __func__); - //unset display_type... - output->display_type = 0; - } - return 0; -} - -#if CONFIG_BOOTSPLASH -vbe_mode_info_t mode_info; - -void vbe_set_graphics(void) -{ - u8 rval; - int i; - - vbe_info_t info; - rval = vbe_info(&info); - if (rval != 0) - return; - - DEBUG_PRINTF_VBE("VbeSignature: %s\n", info.signature); - DEBUG_PRINTF_VBE("VbeVersion: 0x%04x\n", info.version); - DEBUG_PRINTF_VBE("OemString: %s\n", info.oem_string_ptr); - DEBUG_PRINTF_VBE("Capabilities:\n"); - DEBUG_PRINTF_VBE("\tDAC: %s\n", - (info.capabilities & 0x1) == - 0 ? "fixed 6bit" : "switchable 6/8bit"); - DEBUG_PRINTF_VBE("\tVGA: %s\n", - (info.capabilities & 0x2) == - 0 ? "compatible" : "not compatible"); - DEBUG_PRINTF_VBE("\tRAMDAC: %s\n", - (info.capabilities & 0x4) == - 0 ? "normal" : "use blank bit in Function 09h"); - - mode_info.video_mode = (1 << 14) | CONFIG_FRAMEBUFFER_VESA_MODE; - vbe_get_mode_info(&mode_info); - unsigned char *framebuffer = - (unsigned char *) le32_to_cpu(mode_info.vesa.phys_base_ptr); - DEBUG_PRINTF_VBE("FRAMEBUFFER: 0x%08x\n", framebuffer); - vbe_set_mode(&mode_info); - - struct jpeg_decdata *decdata; - decdata = malloc(sizeof(*decdata)); - - /* Switching Intel IGD to 1MB video memory will break this. Who - * cares. */ - int imagesize = 1024*768*2; - - unsigned char *jpeg = cbfs_find_file("bootsplash.jpg", CBFS_TYPE_BOOTSPLASH); - if (!jpeg) { - DEBUG_PRINTF_VBE("Could not find bootsplash.jpg\n"); - return; - } - DEBUG_PRINTF_VBE("Splash at %08x ...\n", jpeg); - dump(jpeg, 64); - - int ret = 0; - DEBUG_PRINTF_VBE("Decompressing boot splash screen...\n"); - ret = jpeg_decode(jpeg, framebuffer, 1024, 768, 16, decdata); - DEBUG_PRINTF_VBE("returns %x\n", ret); -} - -void fill_lb_framebuffer(struct lb_framebuffer *framebuffer) -{ - framebuffer->physical_address = le32_to_cpu(mode_info.vesa.phys_base_ptr); - - framebuffer->x_resolution = le16_to_cpu(mode_info.vesa.x_resolution); - framebuffer->y_resolution = le16_to_cpu(mode_info.vesa.y_resolution); - framebuffer->bytes_per_line = le16_to_cpu(mode_info.vesa.bytes_per_scanline); - framebuffer->bits_per_pixel = mode_info.vesa.bits_per_pixel; - - framebuffer->red_mask_pos = mode_info.vesa.red_mask_pos; - framebuffer->red_mask_size = mode_info.vesa.red_mask_size; - - framebuffer->green_mask_pos = mode_info.vesa.green_mask_pos; - framebuffer->green_mask_size = mode_info.vesa.green_mask_size; - - framebuffer->blue_mask_pos = mode_info.vesa.blue_mask_pos; - framebuffer->blue_mask_size = mode_info.vesa.blue_mask_size; - - framebuffer->reserved_mask_pos = mode_info.vesa.reserved_mask_pos; - framebuffer->reserved_mask_size = mode_info.vesa.reserved_mask_size; -} - -void vbe_textmode_console(void) -{ - /* Wait, just a little bit more, pleeeease ;-) */ - delay(2); - - M.x86.R_EAX = 0x0003; - runInt10(); -} - -#endif diff --git a/util/x86emu/yabel/vbe.h b/util/x86emu/yabel/vbe.h deleted file mode 100644 index 07daedb672..0000000000 --- a/util/x86emu/yabel/vbe.h +++ /dev/null @@ -1,16 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#ifndef _BIOSEMU_VBE_H_ -#define _BIOSEMU_VBE_H_ - -#endif |