| /**************************************************************************** |
| * |
| * 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 |
| * |
| ****************************************************************************/ |
| |
| #ifndef __X86EMU_X86EMU_H |
| #define __X86EMU_X86EMU_H |
| |
| #include <asm/types.h> |
| #include <common.h> |
| #include <pci.h> |
| #include <asm/io.h> |
| #define X86API |
| #define X86APIP * |
| typedef u16 X86EMU_pioAddr; |
| |
| #include "x86emu/regs.h" |
| |
| /*---------------------- Macros and type definitions ----------------------*/ |
| |
| #if defined (CONFIG_ARM) |
| #define GAS_LINE_COMMENT "@" |
| #elif defined(CONFIG_MIPS) || defined(CONFIG_PPC) |
| #define GAS_LINE_COMMENT "#" |
| #elif defined (CONFIG_SH) |
| #define GAS_LINE_COMMENT "!" |
| #endif |
| |
| #define GOT2_TYPE ".got2,\"aw\"\t"GAS_LINE_COMMENT |
| |
| #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); |
| |
| /* decode.c */ |
| |
| void X86EMU_exec(void); |
| void X86EMU_halt_sys(void); |
| |
| #ifdef DEBUG |
| #define HALT_SYS() \ |
| printf("halt_sys: file %s, line %d\n", __FILE__, __LINE__), \ |
| X86EMU_halt_sys() |
| #else |
| #define HALT_SYS() X86EMU_halt_sys() |
| #endif |
| |
| /* Debug options */ |
| |
| #define DEBUG_DECODE_F 0x0001 /* print decoded instruction */ |
| #define DEBUG_TRACE_F 0x0002 /* dump regs before/after execution */ |
| #define DEBUG_STEP_F 0x0004 |
| #define DEBUG_DISASSEMBLE_F 0x0008 |
| #define DEBUG_BREAK_F 0x0010 |
| #define DEBUG_SVC_F 0x0020 |
| #define DEBUG_SAVE_CS_IP 0x0040 |
| #define DEBUG_FS_F 0x0080 |
| #define DEBUG_PROC_F 0x0100 |
| #define DEBUG_SYSINT_F 0x0200 /* bios system interrupts. */ |
| #define DEBUG_TRACECALL_F 0x0400 |
| #define DEBUG_INSTRUMENT_F 0x0800 |
| #define DEBUG_MEM_TRACE_F 0x1000 |
| #define DEBUG_IO_TRACE_F 0x2000 |
| #define DEBUG_TRACECALL_REGS_F 0x4000 |
| #define DEBUG_DECODE_NOPRINT_F 0x8000 |
| #define DEBUG_EXIT 0x10000 |
| #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 */ |
