From 8d7115560d469f901d7d8ccb242d0b437e7394aa Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Fri, 30 Nov 2012 12:34:04 -0800 Subject: Rename devices -> device to match src/include/device Change-Id: I5d0e5b4361c34881a3b81347aac48738cb5b9af0 Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/1960 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks --- src/device/oprom/include/x86emu/regs.h | 372 +++++++++++++++++++++++++++++++++ 1 file changed, 372 insertions(+) create mode 100644 src/device/oprom/include/x86emu/regs.h (limited to 'src/device/oprom/include/x86emu/regs.h') diff --git a/src/device/oprom/include/x86emu/regs.h b/src/device/oprom/include/x86emu/regs.h new file mode 100644 index 0000000000..d738974d4b --- /dev/null +++ b/src/device/oprom/include/x86emu/regs.h @@ -0,0 +1,372 @@ +/**************************************************************************** +* +* 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 */ -- cgit v1.2.3