mirror of
git://source.winehq.org/git/wine.git
synced 2024-09-06 08:53:26 +00:00
Added support for FPU emulation interrupts.
This commit is contained in:
Admiral Coeyman
Alexandre Julliard
parent
273f86fc74
commit
9cb2b210aa
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@ -51,6 +51,7 @@ C_SRCS = \
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$(TOPOBJDIR)/msdos/dosconf.c \
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$(TOPOBJDIR)/msdos/dosmem.c \
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$(TOPOBJDIR)/msdos/dpmi.c \
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$(TOPOBJDIR)/msdos/fpu.c \
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$(TOPOBJDIR)/msdos/int11.c \
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$(TOPOBJDIR)/msdos/int12.c \
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$(TOPOBJDIR)/msdos/int13.c \
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@ -62,7 +63,6 @@ C_SRCS = \
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$(TOPOBJDIR)/msdos/int26.c \
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$(TOPOBJDIR)/msdos/int2a.c \
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$(TOPOBJDIR)/msdos/int2f.c \
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$(TOPOBJDIR)/msdos/int3d.c \
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$(TOPOBJDIR)/msdos/int41.c \
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$(TOPOBJDIR)/msdos/int4b.c \
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$(TOPOBJDIR)/msdos/int5c.c \
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@ -652,8 +652,8 @@ static const INTPROC real_mode_handlers[] =
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/* 18 */ 0, 0, INT_Int1aHandler, 0, 0, 0, 0, 0,
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/* 20 */ DOSVM_Int20Handler, DOSVM_Int21Handler, 0, 0, 0, INT_Int25Handler, 0, 0,
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/* 28 */ 0, DOSVM_Int29Handler, INT_Int2aHandler, 0, 0, 0, 0, INT_Int2fHandler,
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/* 30 */ 0, DOSVM_Int31Handler, 0, DOSVM_Int33Handler, 0, 0, 0, 0,
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/* 38 */ 0, 0, 0, 0, 0, 0, 0, 0,
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/* 30 */ 0, DOSVM_Int31Handler, 0, DOSVM_Int33Handler, INT_Int34Handler, INT_Int35Handler, INT_Int36Handler, INT_Int37Handler,
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/* 38 */ INT_Int38Handler, INT_Int39Handler, INT_Int3aHandler, INT_Int3bHandler, INT_Int3cHandler, INT_Int3dHandler, INT_Int3eHandler, 0,
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/* 40 */ 0, 0, 0, 0, 0, 0, 0, 0,
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/* 48 */ 0, 0, 0, 0, 0, 0, 0, 0,
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/* 50 */ 0, 0, 0, 0, 0, 0, 0, 0,
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@ -225,6 +225,19 @@ extern void WINAPI INT_Int2aHandler(CONTEXT86*);
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/* msdos/int2f.c */
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extern void WINAPI INT_Int2fHandler(CONTEXT86*);
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/* fpu.c */
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extern void WINAPI INT_Int34Handler(CONTEXT86*);
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extern void WINAPI INT_Int35Handler(CONTEXT86*);
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extern void WINAPI INT_Int36Handler(CONTEXT86*);
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extern void WINAPI INT_Int37Handler(CONTEXT86*);
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extern void WINAPI INT_Int38Handler(CONTEXT86*);
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extern void WINAPI INT_Int39Handler(CONTEXT86*);
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extern void WINAPI INT_Int3aHandler(CONTEXT86*);
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extern void WINAPI INT_Int3bHandler(CONTEXT86*);
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extern void WINAPI INT_Int3cHandler(CONTEXT86*);
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extern void WINAPI INT_Int3dHandler(CONTEXT86*);
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extern void WINAPI INT_Int3eHandler(CONTEXT86*);
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/* msdos/dpmi.c */
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typedef void (WINAPI *RMCBPROC)(CONTEXT86*);
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extern void WINAPI INT_Int31Handler(CONTEXT86*);
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@ -259,7 +272,7 @@ extern char IO_pp_init(void);
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*/
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#define CTX_SEG_OFF_TO_LIN(context,seg,off) \
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(ISV86(context) ? PTR_REAL_TO_LIN((seg),(off)) : \
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(!seg || IS_SELECTOR_SYSTEM(seg))? (void *)(off) : MapSL(MAKESEGPTR((seg),(off))))
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(!seg || IS_SELECTOR_SYSTEM(seg))? (void *)(ULONG_PTR)(off) : MapSL(MAKESEGPTR((seg),(off))))
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#define INT_BARF(context,num) \
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ERR( "int%x: unknown/not implemented parameters:\n" \
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246
msdos/fpu.c
Normal file
246
msdos/fpu.c
Normal file
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@ -0,0 +1,246 @@
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/*
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* DOS interrupt 34->3e handlers. All FPU interrupt code should be
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* moved into this file.
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* int 3d is not activated yet...
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*
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* Copyright 2002 Robert 'Admiral' Coeyman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdlib.h>
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#include "msdos.h"
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#include "miscemu.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(int);
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/*
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* The actual work is done by a single routine.
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*/
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static void FPU_ModifyCode(CONTEXT86 *context, BYTE Opcode);
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/**********************************************************************
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* INT_Int34Handler (WPROCS.152)
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*
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* Handler for int 34 (FLOATING POINT EMULATION - Opcode 0xd8).
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int34Handler(CONTEXT86 *context)
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{
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TRACE("Int 0x34 called-- FP opcode 0xd8");
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FPU_ModifyCode(context, 0xd8);
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}
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/**********************************************************************
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* INT_Int35Handler (WPROCS.153)
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*
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* Handler for int 35 (FLOATING POINT EMULATION - Opcode 0xd9).
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int35Handler(CONTEXT86 *context)
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{
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TRACE("Int 0x35 called-- FP opcode 0xd9");
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FPU_ModifyCode(context, 0xd9);
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}
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/**********************************************************************
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* INT_Int36Handler (WPROCS.154)
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*
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* Handler for int 36 (FLOATING POINT EMULATION - Opcode 0xda).
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int36Handler(CONTEXT86 *context)
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{
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TRACE("Int 0x36 called-- FP opcode 0xda");
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FPU_ModifyCode(context, 0xda);
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}
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/**********************************************************************
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* INT_Int37Handler (WPROCS.155)
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*
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* Handler for int 37 (FLOATING POINT EMULATION - Opcode 0xdb).
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int37Handler(CONTEXT86 *context)
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{
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TRACE("Int 0x37 called-- FP opcode 0xdb");
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FPU_ModifyCode(context, 0xdb);
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}
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/**********************************************************************
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* INT_Int38Handler (WPROCS.156)
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*
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* Handler for int 38 (FLOATING POINT EMULATION - Opcode 0xdc).
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*
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* Between versions 3.0 and 5.01, the original PC-MOS API call that
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* was here was moved to int 0xd4.
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int38Handler(CONTEXT86 *context)
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{
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TRACE("Int 0x38 called-- FP opcode 0xdc");
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FPU_ModifyCode(context, 0xdc);
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}
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/**********************************************************************
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* INT_Int39Handler (WPROCS.157)
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*
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* Handler for int 39 (FLOATING POINT EMULATION - Opcode 0xdd).
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int39Handler(CONTEXT86 *context)
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{
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TRACE("Int 0x39 called-- FP opcode 0xdd");
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FPU_ModifyCode(context, 0xdd);
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}
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/**********************************************************************
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* INT_Int3aHandler (WPROCS.158)
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*
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* Handler for int 3a (FLOATING POINT EMULATION - Opcode 0xde).
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int3aHandler(CONTEXT86 *context)
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{
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TRACE("Int 0x3a called-- FP opcode 0xde");
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FPU_ModifyCode(context, 0xde);
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}
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/**********************************************************************
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* INT_Int3bHandler (WPROCS.159)
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*
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* Handler for int 3B (FLOATING POINT EMULATION - Opcode 0xdf).
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*
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* The interrupt list isn't specific about what this interrupt
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* actually does. [ interrup.m ]
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*/
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void WINAPI INT_Int3bHandler(CONTEXT86 *context)
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{
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TRACE("Int 0x3b called-- FP opcode 0xdf");
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FPU_ModifyCode(context, 0xdf);
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}
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/**********************************************************************
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* INT_Int3cHandler (WPROCS.160)
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*
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* Handler for int 3C (FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE).
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*
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* Generated code is CD 3C xy mm ... (CD = int | 3C = this interrupt)
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* xy is a modified ESC code and mm is the modR/M byte.
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* xy byte seems to be encoded as ss011xxx or ss000xxx
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* ss= segment override.
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* 00 -> DS
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* 01 -> SS
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* 10 -> CS
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* 11 -> ES
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*
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* 11011xxx should be the opcode instruction.
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*/
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void WINAPI INT_Int3cHandler(CONTEXT86 *context)
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{
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FIXME("Int 3C NOT Implemented");
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INT_BARF(context, 0x3c);
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}
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/**********************************************************************
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* INT_Int3dHandler (WPROCS.161)
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*
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* Handler for int 3D (FLOATING POINT EMULATION - Standalone FWAIT).
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*
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* Opcode 0x90 is a NOP. It just fills space where the 3D was.
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*/
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void WINAPI INT_Int3dHandler(CONTEXT86 *context)
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{
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TRACE("Int 0x3d called-- Standalone FWAIT");
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FPU_ModifyCode(context, 0x90);
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}
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/**********************************************************************
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* INT_Int3eHandler (WPROCS.162)
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*
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* FLOATING POINT EMULATION -- Borland "Shortcut" call.
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* The two bytes following the int 3E instruction are
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* the subcode and a NOP ( 0x90 ), except for subcodes DC and DE
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* where the second byte is the register count.
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*
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* Direct access 4.0 modifies and does not restore this vector.
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*
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*/
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void WINAPI INT_Int3eHandler(CONTEXT86 *context)
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{
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FIXME("Int 3E NOT Implemented");
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INT_BARF(context, 0x3e);
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}
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/**********************************************************************
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* FPU_ModifyCode
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*
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* This is the function that inserts the 0x9b fwait instruction
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* and the actual FPU opcode into the program.
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* -A.C.
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*
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* Code thanks to Ove Kaaven
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*/
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static void FPU_ModifyCode(CONTEXT86 *context, BYTE Opcode)
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{
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WORD *stack = CTX_SEG_OFF_TO_LIN(context, context->SegSs, context->Esp);
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BYTE *code = CTX_SEG_OFF_TO_LIN(context, stack[1], stack[0]);
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/*
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* All *NIX systems should have a real or kernel emulated FPU.
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*/
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code[-2] = 0x9b; /* The fwait instruction */
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code[-1] = Opcode; /* Insert the opcode */
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if ( stack[0] < 2 ) FIXME("Backed up over a segment boundry in FPU code.");
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stack[0] -= 2; /* back up the return address 2 bytes */
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TRACE("Modified code in FPU int call to 0x9b 0x%x",Opcode);
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}
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@ -1,51 +0,0 @@
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/*
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* DOS interrupt 3d handler.
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* Copyright 1997 Len White
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdlib.h>
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#include "msdos.h"
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#include "miscemu.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(int);
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/**********************************************************************
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* INT_Int3dHandler (WPROCS.161)
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*
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* Handler for int 3d (FLOATING POINT EMULATION - STANDALONE FWAIT).
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*/
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void WINAPI INT_Int3dHandler(CONTEXT86 *context)
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{
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switch(AH_reg(context))
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{
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case 0x00:
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break;
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case 0x02:
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case 0x03:
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case 0x04:
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case 0x05:
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case 0xb:
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AH_reg(context) = 0;
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break;
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default:
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INT_BARF( context, 0x3d );
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}
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}
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