38cd29ebd7
produced numerous problems in the past, including the fact that x86emu doesn't work in v3 anymore even though it lives in the v3 repository. Since this is a cross-repository move, keeping the history in the v2 tree would make life hard for everone. So check the v3 repository for x86emu history since the merger. The his commit is based on an svn export of r1175 of the coreboot-v3 repository. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4532 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
89 lines
3.6 KiB
C
89 lines
3.6 KiB
C
/****************************************************************************
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*
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* Realmode X86 Emulator Library
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*
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* Copyright (C) 1996-1999 SciTech Software, Inc.
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* Copyright (C) David Mosberger-Tang
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* Copyright (C) 1999 Egbert Eich
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*
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* ========================================================================
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation, and that the name of the authors not be used
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* in advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission. The authors makes no
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* representations about the suitability of this software for any purpose.
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* It is provided "as is" without express or implied warranty.
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*
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* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
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* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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* ========================================================================
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*
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* Language: ANSI C
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* Environment: Any
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* Developer: Kendall Bennett
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*
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* Description: Header file for instruction decoding logic.
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*
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****************************************************************************/
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#ifndef __X86EMU_DECODE_H
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#define __X86EMU_DECODE_H
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/*---------------------- Macros and type definitions ----------------------*/
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/* Instruction Decoding Stuff */
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#define FETCH_DECODE_MODRM(mod,rh,rl) fetch_decode_modrm(&mod,&rh,&rl)
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#define DECODE_RM_BYTE_REGISTER(r) decode_rm_byte_register(r)
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#define DECODE_RM_WORD_REGISTER(r) decode_rm_word_register(r)
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#define DECODE_RM_LONG_REGISTER(r) decode_rm_long_register(r)
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#define DECODE_CLEAR_SEGOVR() M.x86.mode &= ~SYSMODE_CLRMASK
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/*-------------------------- Function Prototypes --------------------------*/
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#ifdef __cplusplus
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extern "C" { /* Use "C" linkage when in C++ mode */
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#endif
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void x86emu_intr_raise (u8 type);
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void fetch_decode_modrm (int *mod,int *regh,int *regl);
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u8 fetch_byte_imm (void);
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u16 fetch_word_imm (void);
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u32 fetch_long_imm (void);
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u8 fetch_data_byte (uint offset);
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u8 fetch_data_byte_abs (uint segment, uint offset);
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u16 fetch_data_word (uint offset);
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u16 fetch_data_word_abs (uint segment, uint offset);
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u32 fetch_data_long (uint offset);
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u32 fetch_data_long_abs (uint segment, uint offset);
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void store_data_byte (uint offset, u8 val);
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void store_data_byte_abs (uint segment, uint offset, u8 val);
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void store_data_word (uint offset, u16 val);
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void store_data_word_abs (uint segment, uint offset, u16 val);
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void store_data_long (uint offset, u32 val);
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void store_data_long_abs (uint segment, uint offset, u32 val);
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u8* decode_rm_byte_register(int reg);
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u16* decode_rm_word_register(int reg);
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u32* decode_rm_long_register(int reg);
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u16* decode_rm_seg_register(int reg);
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unsigned decode_rm00_address(int rm);
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unsigned decode_rm01_address(int rm);
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unsigned decode_rm10_address(int rm);
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unsigned decode_rmXX_address(int mod, int rm);
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#ifdef __cplusplus
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} /* End of "C" linkage for C++ */
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#endif
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#endif /* __X86EMU_DECODE_H */
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