[deb_xorg-server.git] / hw / xfree86 / x86emu / x86emu.h

/****************************************************************************
*
*						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

#ifdef SCITECH
#include "scitech.h"
#define	X86API	_ASMAPI
#define	X86APIP	_ASMAPIP
typedef int X86EMU_pioAddr;
#else
#include "x86emu/types.h"
#define	X86API
#define	X86APIP	*
#endif
#include "x86emu/regs.h"

/*---------------------- Macros and type definitions ----------------------*/

#ifdef PACK
#pragma	PACK                    /* Don't pack structs with function pointers! */
#endif

/****************************************************************************
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);

#ifdef END_PACK
#pragma	END_PACK
#endif

/*--------------------- 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()	\
	printk("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          0x000001        /* print decoded instruction  */
#define DEBUG_TRACE_F           0x000002        /* dump regs before/after execution */
#define DEBUG_STEP_F            0x000004
#define DEBUG_DISASSEMBLE_F     0x000008
#define DEBUG_BREAK_F           0x000010
#define DEBUG_SVC_F             0x000020
#define DEBUG_SAVE_IP_CS_F      0x000040
#define DEBUG_FS_F              0x000080
#define DEBUG_PROC_F            0x000100
#define DEBUG_SYSINT_F          0x000200        /* bios system interrupts. */
#define DEBUG_TRACECALL_F       0x000400
#define DEBUG_INSTRUMENT_F      0x000800
#define DEBUG_MEM_TRACE_F       0x001000
#define DEBUG_IO_TRACE_F        0x002000
#define DEBUG_TRACECALL_REGS_F  0x004000
#define DEBUG_DECODE_NOPRINT_F  0x008000
#define DEBUG_EXIT              0x010000
#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 */
Commit	Line	Data
a09e091a JB	1	/****************************************************************************
	2	*
	3	* Realmode X86 Emulator Library
	4	*
	5	* Copyright (C) 1996-1999 SciTech Software, Inc.
	6	* Copyright (C) David Mosberger-Tang
	7	* Copyright (C) 1999 Egbert Eich
	8	*
	9	* ========================================================================
	10	*
	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.
	20	*
	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.
	28	*
	29	* ========================================================================
	30	*
	31	* Language: ANSI C
	32	* Environment: Any
	33	* Developer: Kendall Bennett
	34	*
	35	* Description: Header file for public specific functions.
	36	* Any application linking against us should only
	37	* include this header
	38	*
	39	****************************************************************************/
	40
	41	#ifndef __X86EMU_X86EMU_H
	42	#define __X86EMU_X86EMU_H
	43
	44	#ifdef SCITECH
	45	#include "scitech.h"
	46	#define X86API _ASMAPI
	47	#define X86APIP _ASMAPIP
	48	typedef int X86EMU_pioAddr;
	49	#else
	50	#include "x86emu/types.h"
	51	#define X86API
	52	#define X86APIP *
	53	#endif
	54	#include "x86emu/regs.h"
	55
	56	/---------------------- Macros and type definitions ----------------------/
	57
	58	#ifdef PACK
	59	#pragma PACK /* Don't pack structs with function pointers! */
	60	#endif
	61
	62	/****************************************************************************
	63	REMARKS:
	64	Data structure containing ponters to programmed I/O functions used by the
65	emulator. This is used so that the user program can hook all programmed
66	I/O for the emulator to handled as necessary by the user program. By
67	default the emulator contains simple functions that do not do access the
68	hardware in any way. To allow the emualtor access the hardware, you will
69	need to override the programmed I/O functions using the X86EMU_setupPioFuncs
70	function.
71
72	HEADER:
73	x86emu.h
74
75	MEMBERS:
76	inb - Function to read a byte from an I/O port
77	inw - Function to read a word from an I/O port
78	inl - Function to read a dword from an I/O port
79	outb - Function to write a byte to an I/O port
80	outw - Function to write a word to an I/O port
81	outl - Function to write a dword to an I/O port
82	****************************************************************************/
83	typedef struct {
84	u8(X86APIP inb) (X86EMU_pioAddr addr);
85	u16(X86APIP inw) (X86EMU_pioAddr addr);
86	u32(X86APIP inl) (X86EMU_pioAddr addr);
87	void (X86APIP outb) (X86EMU_pioAddr addr, u8 val);
88	void (X86APIP outw) (X86EMU_pioAddr addr, u16 val);
89	void (X86APIP outl) (X86EMU_pioAddr addr, u32 val);
90	} X86EMU_pioFuncs;
91
92	/****************************************************************************
93	REMARKS:
94	Data structure containing ponters to memory access functions used by the
95	emulator. This is used so that the user program can hook all memory
96	access functions as necessary for the emulator. By default the emulator
97	contains simple functions that only access the internal memory of the
98	emulator. If you need specialised functions to handle access to different
99	types of memory (ie: hardware framebuffer accesses and BIOS memory access
100	etc), you will need to override this using the X86EMU_setupMemFuncs
101	function.
102
103	HEADER:
104	x86emu.h
105
106	MEMBERS:
107	rdb - Function to read a byte from an address
108	rdw - Function to read a word from an address
109	rdl - Function to read a dword from an address
110	wrb - Function to write a byte to an address
111	wrw - Function to write a word to an address
112	wrl - Function to write a dword to an address
113	****************************************************************************/
114	typedef struct {
115	u8(X86APIP rdb) (u32 addr);
116	u16(X86APIP rdw) (u32 addr);
117	u32(X86APIP rdl) (u32 addr);
118	void (X86APIP wrb) (u32 addr, u8 val);
119	void (X86APIP wrw) (u32 addr, u16 val);
120	void (X86APIP wrl) (u32 addr, u32 val);
121	} X86EMU_memFuncs;
122
123	/****************************************************************************
124	Here are the default memory read and write
125	function in case they are needed as fallbacks.
126	***************************************************************************/
127	extern u8 X86API rdb(u32 addr);
128	extern u16 X86API rdw(u32 addr);
129	extern u32 X86API rdl(u32 addr);
130	extern void X86API wrb(u32 addr, u8 val);
131	extern void X86API wrw(u32 addr, u16 val);
132	extern void X86API wrl(u32 addr, u32 val);
133
134	#ifdef END_PACK
135	#pragma END_PACK
136	#endif
137
138	/--------------------- type definitions -----------------------------------/
139
140	typedef void (X86APIP X86EMU_intrFuncs) (int num);
141	extern X86EMU_intrFuncs _X86EMU_intrTab[256];
142
143	/-------------------------- Function Prototypes --------------------------/
144
145	#ifdef __cplusplus
146	extern "C" { /* Use "C" linkage when in C++ mode */
147	#endif
148
149	void X86EMU_setupMemFuncs(X86EMU_memFuncs * funcs);
150	void X86EMU_setupPioFuncs(X86EMU_pioFuncs * funcs);
151	void X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[]);
152	void X86EMU_prepareForInt(int num);
153
154	/* decode.c */
155
156	void X86EMU_exec(void);
157	void X86EMU_halt_sys(void);
158
159	#ifdef DEBUG
160	#define HALT_SYS() \
161	printk("halt_sys: file %s, line %d\n", __FILE__, __LINE__), \
162	X86EMU_halt_sys()
163	#else
164	#define HALT_SYS() X86EMU_halt_sys()
165	#endif
166
167	/* Debug options */
168
169	#define DEBUG_DECODE_F 0x000001 /* print decoded instruction */
170	#define DEBUG_TRACE_F 0x000002 /* dump regs before/after execution */
171	#define DEBUG_STEP_F 0x000004
172	#define DEBUG_DISASSEMBLE_F 0x000008
173	#define DEBUG_BREAK_F 0x000010
174	#define DEBUG_SVC_F 0x000020
175	#define DEBUG_SAVE_IP_CS_F 0x000040
176	#define DEBUG_FS_F 0x000080
177	#define DEBUG_PROC_F 0x000100
178	#define DEBUG_SYSINT_F 0x000200 /* bios system interrupts. */
179	#define DEBUG_TRACECALL_F 0x000400
180	#define DEBUG_INSTRUMENT_F 0x000800
181	#define DEBUG_MEM_TRACE_F 0x001000
182	#define DEBUG_IO_TRACE_F 0x002000
183	#define DEBUG_TRACECALL_REGS_F 0x004000
184	#define DEBUG_DECODE_NOPRINT_F 0x008000
185	#define DEBUG_EXIT 0x010000
186	#define DEBUG_SYS_F (DEBUG_SVC_F\|DEBUG_FS_F\|DEBUG_PROC_F)
187
188	void X86EMU_trace_regs(void);
189	void X86EMU_trace_xregs(void);
190	void X86EMU_dump_memory(u16 seg, u16 off, u32 amt);
191	int X86EMU_trace_on(void);
192	int X86EMU_trace_off(void);
193
194	#ifdef __cplusplus
195	} /* End of "C" linkage for C++ */
196	#endif
197	#endif /* __X86EMU_X86EMU_H */