diff options
Diffstat (limited to 'roms/u-boot/drivers/bios_emulator/include/x86emu')
6 files changed, 925 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/bios_emulator/include/x86emu/debug.h b/roms/u-boot/drivers/bios_emulator/include/x86emu/debug.h new file mode 100644 index 000000000..4962a2aca --- /dev/null +++ b/roms/u-boot/drivers/bios_emulator/include/x86emu/debug.h @@ -0,0 +1,213 @@ +/**************************************************************************** +* +* 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: Header file for debug definitions. +* +****************************************************************************/ + +#ifndef __X86EMU_DEBUG_H +#define __X86EMU_DEBUG_H + +/*---------------------- Macros and type definitions ----------------------*/ + +/* 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 CONFIG_X86EMU_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 CONFIG_X86EMU_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_CS_IP) + +# define DEBUG_FS() (M.x86.debug & DEBUG_FS_F) +# define DEBUG_PROC() (M.x86.debug & DEBUG_PROC_F) +# define DEBUG_SYSINT() (M.x86.debug & DEBUG_SYSINT_F) +# define DEBUG_TRACECALL() (M.x86.debug & DEBUG_TRACECALL_F) +# define DEBUG_TRACECALLREGS() (M.x86.debug & DEBUG_TRACECALL_REGS_F) +# define DEBUG_SYS() (M.x86.debug & DEBUG_SYS_F) +# define DEBUG_MEM_TRACE() (M.x86.debug & DEBUG_MEM_TRACE_F) +# define DEBUG_IO_TRACE() (M.x86.debug & DEBUG_IO_TRACE_F) +# define DEBUG_DECODE_NOPRINT() (M.x86.debug & DEBUG_DECODE_NOPRINT_F) +#else +# define DEBUG_INSTRUMENT() 0 +# define DEBUG_DECODE() 0 +# define DEBUG_TRACE() 0 +# define DEBUG_STEP() 0 +# define DEBUG_DISASSEMBLE() 0 +# define DEBUG_BREAK() 0 +# define DEBUG_SVC() 0 +# define DEBUG_SAVE_IP_CS() 0 +# define DEBUG_FS() 0 +# define DEBUG_PROC() 0 +# define DEBUG_SYSINT() 0 +# define DEBUG_TRACECALL() 0 +# define DEBUG_TRACECALLREGS() 0 +# define DEBUG_SYS() 0 +# define DEBUG_MEM_TRACE() 0 +# define DEBUG_IO_TRACE() 0 +# define DEBUG_DECODE_NOPRINT() 0 +#endif + +# define ERR_PRINTF(x) printf(x) +# define ERR_PRINTF2(x, y) printf(x, y) + +#ifdef CONFIG_X86EMU_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 CONFIG_X86EMU_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 CONFIG_X86EMU_DEBUG +# define SINGLE_STEP() if (DEBUG_STEP()) x86emu_single_step() +#else +# define SINGLE_STEP() +#endif + +#define TRACE_AND_STEP() \ + TRACE_REGS(); \ + SINGLE_STEP() + +#ifdef CONFIG_X86EMU_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 CONFIG_X86EMU_DEBUG +# define CALL_TRACE(u,v,w,x,s) \ + if (DEBUG_TRACECALLREGS()) \ + x86emu_dump_regs(); \ + if (DEBUG_TRACECALL()) \ + printk("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x); +# define RETURN_TRACE(n,u,v) \ + if (DEBUG_TRACECALLREGS()) \ + x86emu_dump_regs(); \ + if (DEBUG_TRACECALL()) \ + printk("%04x:%04x: %s\n",u,v,n); +#else +# define CALL_TRACE(u,v,w,x,s) +# define RETURN_TRACE(n,u,v) +#endif + +#ifdef CONFIG_X86EMU_DEBUG +#define DB(x) x +#else +#define DB(x) +#endif + +/*-------------------------- Function Prototypes --------------------------*/ + +#ifdef __cplusplus +extern "C" { /* Use "C" linkage when in C++ mode */ +#endif + + extern void x86emu_inc_decoded_inst_len(int x); + extern void x86emu_decode_printf(char *x); + extern void x86emu_decode_printf2(char *x, int y); + extern void x86emu_just_disassemble(void); + extern void x86emu_single_step(void); + extern void x86emu_end_instr(void); + extern void x86emu_dump_regs(void); + extern void x86emu_dump_xregs(void); + extern void x86emu_print_int_vect(u16 iv); + extern void x86emu_instrument_instruction(void); + extern void x86emu_check_ip_access(void); + extern void x86emu_check_sp_access(void); + extern void x86emu_check_mem_access(u32 p); + extern void x86emu_check_data_access(uint s, uint o); + +#ifdef __cplusplus +} /* End of "C" linkage for C++ */ +#endif +#endif /* __X86EMU_DEBUG_H */ diff --git a/roms/u-boot/drivers/bios_emulator/include/x86emu/decode.h b/roms/u-boot/drivers/bios_emulator/include/x86emu/decode.h new file mode 100644 index 000000000..77769f009 --- /dev/null +++ b/roms/u-boot/drivers/bios_emulator/include/x86emu/decode.h @@ -0,0 +1,88 @@ +/**************************************************************************** +* +* 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: 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/roms/u-boot/drivers/bios_emulator/include/x86emu/ops.h b/roms/u-boot/drivers/bios_emulator/include/x86emu/ops.h new file mode 100644 index 000000000..a4f2316ba --- /dev/null +++ b/roms/u-boot/drivers/bios_emulator/include/x86emu/ops.h @@ -0,0 +1,45 @@ +/**************************************************************************** +* +* 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: 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); + +#endif /* __X86EMU_OPS_H */ diff --git a/roms/u-boot/drivers/bios_emulator/include/x86emu/prim_ops.h b/roms/u-boot/drivers/bios_emulator/include/x86emu/prim_ops.h new file mode 100644 index 000000000..2291e8488 --- /dev/null +++ b/roms/u-boot/drivers/bios_emulator/include/x86emu/prim_ops.h @@ -0,0 +1,141 @@ +/**************************************************************************** +* +* 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: Header file for primitive operation functions. +* +****************************************************************************/ + +#ifndef __X86EMU_PRIM_OPS_H +#define __X86EMU_PRIM_OPS_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); + +#ifdef __cplusplus +} /* End of "C" linkage for C++ */ +#endif + +#endif /* __X86EMU_PRIM_OPS_H */ diff --git a/roms/u-boot/drivers/bios_emulator/include/x86emu/regs.h b/roms/u-boot/drivers/bios_emulator/include/x86emu/regs.h new file mode 100644 index 000000000..29341297d --- /dev/null +++ b/roms/u-boot/drivers/bios_emulator/include/x86emu/regs.h @@ -0,0 +1,340 @@ +/**************************************************************************** +* +* 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: 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. + */ + +#undef CS +#undef DS +#undef SS +#undef ES +#undef FS +#undef GS + +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 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 +} 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 +****************************************************************************/ +#undef x86 +typedef struct { + X86EMU_regs x86; + u8 *mem_base; + u32 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 */ + +#ifndef __KERNEL__ + void printk(const char *fmt, ...); +#endif + +#ifdef __cplusplus +} /* End of "C" linkage for C++ */ +#endif +#endif /* __X86EMU_REGS_H */ diff --git a/roms/u-boot/drivers/bios_emulator/include/x86emu/x86emui.h b/roms/u-boot/drivers/bios_emulator/include/x86emu/x86emui.h new file mode 100644 index 000000000..353725553 --- /dev/null +++ b/roms/u-boot/drivers/bios_emulator/include/x86emu/x86emui.h @@ -0,0 +1,98 @@ +/**************************************************************************** +* +* 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: 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. +* +****************************************************************************/ + +#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.h" +#include "x86emu/regs.h" +#include "x86emu/debug.h" +#include "x86emu/decode.h" +#include "x86emu/ops.h" +#include "x86emu/prim_ops.h" +#ifndef __KERNEL__ +#include <stdio.h> +#include <stdlib.h> +#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 */ |