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author | Markus Klotzbuecher <mk@denx.de> | 2007-08-07 22:30:29 +0200 |
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committer | Markus Klotzbuecher <mk@pollux.denx.de> | 2007-08-07 22:30:29 +0200 |
commit | 78549bbf44bd2c8d1a0730fb068836071751afaa (patch) | |
tree | 92f002dc9772874bc3c884b1caa5607763c2c276 /board/MAI/bios_emulator/scitech/include/x86emu/regs.h | |
parent | 9b7464a2c88614e1061f509c48930a3d240d1a35 (diff) | |
parent | b23b547597ff2375ad13a9ab04e5257a3ad76c99 (diff) | |
download | u-boot-imx-78549bbf44bd2c8d1a0730fb068836071751afaa.zip u-boot-imx-78549bbf44bd2c8d1a0730fb068836071751afaa.tar.gz u-boot-imx-78549bbf44bd2c8d1a0730fb068836071751afaa.tar.bz2 |
Merge with git://www.denx.de/git/u-boot.git
Diffstat (limited to 'board/MAI/bios_emulator/scitech/include/x86emu/regs.h')
-rw-r--r-- | board/MAI/bios_emulator/scitech/include/x86emu/regs.h | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/board/MAI/bios_emulator/scitech/include/x86emu/regs.h b/board/MAI/bios_emulator/scitech/include/x86emu/regs.h deleted file mode 100644 index a12017b..0000000 --- a/board/MAI/bios_emulator/scitech/include/x86emu/regs.h +++ /dev/null @@ -1,331 +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. -* -****************************************************************************/ - -#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 -#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) - -#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 - */ - long mode; - u8 intno; - volatile int intr; /* mask of pending interrupts */ - int debug; -#ifdef 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 - } X86EMU_regs; - -/**************************************************************************** -REMARKS: -Structure maintaining the emulator machine state. - -MEMBERS: -x86 - X86 registers -mem_base - Base real mode memory for the emulator -mem_size - Size of the real mode memory block for the emulator -****************************************************************************/ -typedef struct { - X86EMU_regs x86; - unsigned long mem_base; - unsigned long mem_size; - void* private; - } 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 - -/*-------------------------- Function Prototypes --------------------------*/ - -/* Function to log information at runtime */ - -/*void printk(const char *fmt, ...); */ - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_REGS_H */ |