1 /****************************************************************************
3 * Realmode X86 Emulator Library
5 * Copyright (C) 1996-1999 SciTech Software, Inc.
6 * Copyright (C) David Mosberger-Tang
7 * Copyright (C) 1999 Egbert Eich
9 * ========================================================================
11 * Permission to use, copy, modify, distribute, and sell this software and
12 * its documentation for any purpose is hereby granted without fee,
13 * provided that the above copyright notice appear in all copies and that
14 * both that copyright notice and this permission notice appear in
15 * supporting documentation, and that the name of the authors not be used
16 * in advertising or publicity pertaining to distribution of the software
17 * without specific, written prior permission. The authors makes no
18 * representations about the suitability of this software for any purpose.
19 * It is provided "as is" without express or implied warranty.
21 * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
22 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
23 * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
24 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
25 * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
26 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
27 * PERFORMANCE OF THIS SOFTWARE.
29 * ========================================================================
33 * Developer: Kendall Bennett
35 * Description: Header file for public specific functions.
36 * Any application linking against us should only
39 ****************************************************************************/
40 /* $XFree86: xc/extras/x86emu/include/x86emu.h,v 1.2 2000/11/21 23:10:25 tsi Exp $ */
42 #ifndef __X86EMU_X86EMU_H
43 #define __X86EMU_X86EMU_H
46 #include <console/console.h>
47 #if CONFIG_X86EMU_DEBUG
56 /*---------------------- Macros and type definitions ----------------------*/
60 /****************************************************************************
62 Data structure containing ponters to programmed I/O functions used by the
63 emulator. This is used so that the user program can hook all programmed
64 I/O for the emulator to handled as necessary by the user program. By
65 default the emulator contains simple functions that do not do access the
66 hardware in any way. To allow the emualtor access the hardware, you will
67 need to override the programmed I/O functions using the X86EMU_setupPioFuncs
74 inb - Function to read a byte from an I/O port
75 inw - Function to read a word from an I/O port
76 inl - Function to read a dword from an I/O port
77 outb - Function to write a byte to an I/O port
78 outw - Function to write a word to an I/O port
79 outl - Function to write a dword to an I/O port
80 ****************************************************************************/
82 u8 (X86APIP inb)(X86EMU_pioAddr addr);
83 u16 (X86APIP inw)(X86EMU_pioAddr addr);
84 u32 (X86APIP inl)(X86EMU_pioAddr addr);
85 void (X86APIP outb)(X86EMU_pioAddr addr, u8 val);
86 void (X86APIP outw)(X86EMU_pioAddr addr, u16 val);
87 void (X86APIP outl)(X86EMU_pioAddr addr, u32 val);
90 /****************************************************************************
92 Data structure containing ponters to memory access functions used by the
93 emulator. This is used so that the user program can hook all memory
94 access functions as necessary for the emulator. By default the emulator
95 contains simple functions that only access the internal memory of the
96 emulator. If you need specialised functions to handle access to different
97 types of memory (ie: hardware framebuffer accesses and BIOS memory access
98 etc), you will need to override this using the X86EMU_setupMemFuncs
105 rdb - Function to read a byte from an address
106 rdw - Function to read a word from an address
107 rdl - Function to read a dword from an address
108 wrb - Function to write a byte to an address
109 wrw - Function to write a word to an address
110 wrl - Function to write a dword to an address
111 ****************************************************************************/
113 u8 (X86APIP rdb)(u32 addr);
114 u16 (X86APIP rdw)(u32 addr);
115 u32 (X86APIP rdl)(u32 addr);
116 void (X86APIP wrb)(u32 addr, u8 val);
117 void (X86APIP wrw)(u32 addr, u16 val);
118 void (X86APIP wrl)(u32 addr, u32 val);
121 /****************************************************************************
122 Here are the default memory read and write
123 function in case they are needed as fallbacks.
124 ***************************************************************************/
125 extern u8 X86API rdb(u32 addr);
126 extern u16 X86API rdw(u32 addr);
127 extern u32 X86API rdl(u32 addr);
128 extern void X86API wrb(u32 addr, u8 val);
129 extern void X86API wrw(u32 addr, u16 val);
130 extern void X86API wrl(u32 addr, u32 val);
134 /*--------------------- type definitions -----------------------------------*/
136 typedef void (X86APIP X86EMU_intrFuncs)(int num);
137 extern X86EMU_intrFuncs _X86EMU_intrTab[256];
139 /*-------------------------- Function Prototypes --------------------------*/
142 extern "C" { /* Use "C" linkage when in C++ mode */
145 void X86EMU_setupMemFuncs(X86EMU_memFuncs *funcs);
146 void X86EMU_setupPioFuncs(X86EMU_pioFuncs *funcs);
147 void X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[]);
148 void X86EMU_prepareForInt(int num);
150 void X86EMU_setMemBase(void *base, size_t size);
154 void X86EMU_exec(void);
155 void X86EMU_halt_sys(void);
157 #if CONFIG_X86EMU_DEBUG
159 printf("halt_sys: in %s\n", __func__); \
162 #define HALT_SYS() X86EMU_halt_sys()
167 #define DEBUG_DECODE_F 0x000001 /* print decoded instruction */
168 #define DEBUG_TRACE_F 0x000002 /* dump regs before/after execution */
169 #define DEBUG_STEP_F 0x000004
170 #define DEBUG_DISASSEMBLE_F 0x000008
171 #define DEBUG_BREAK_F 0x000010
172 #define DEBUG_SVC_F 0x000020
173 #define DEBUG_FS_F 0x000080
174 #define DEBUG_PROC_F 0x000100
175 #define DEBUG_SYSINT_F 0x000200 /* bios system interrupts. */
176 #define DEBUG_TRACECALL_F 0x000400
177 #define DEBUG_INSTRUMENT_F 0x000800
178 #define DEBUG_MEM_TRACE_F 0x001000
179 #define DEBUG_IO_TRACE_F 0x002000
180 #define DEBUG_TRACECALL_REGS_F 0x004000
181 #define DEBUG_DECODE_NOPRINT_F 0x008000
182 #define DEBUG_SAVE_IP_CS_F 0x010000
183 #define DEBUG_TRACEJMP_F 0x020000
184 #define DEBUG_TRACEJMP_REGS_F 0x040000
185 #define DEBUG_SYS_F (DEBUG_SVC_F|DEBUG_FS_F|DEBUG_PROC_F)
187 void X86EMU_trace_regs(void);
188 void X86EMU_trace_xregs(void);
189 void X86EMU_dump_memory(u16 seg, u16 off, u32 amt);
190 int X86EMU_trace_on(void);
191 int X86EMU_trace_off(void);
194 } /* End of "C" linkage for C++ */
197 #endif /* __X86EMU_X86EMU_H */