mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 01:19:49 +00:00
ece92f8505
ATI video card BIOS. and can be used for x86 code emulation by some modifications. Signed-off-by: Jason Jin <Jason.jin@freescale.com>
88 lines
3.7 KiB
C
88 lines
3.7 KiB
C
/****************************************************************************
|
|
*
|
|
* 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 */
|