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Added support for FPU emulation interrupts.

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This commit is contained in:
Admiral Coeyman 2002-07-10 23:22:29 +00:00 committed by Alexandre Julliard
parent 273f86fc74
commit 9cb2b210aa
5 changed files with 263 additions and 55 deletions
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2
dlls/ntdll/Makefile.in
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@ -51,6 +51,7 @@ C_SRCS = \
$(TOPOBJDIR)/msdos/dosconf.c \
$(TOPOBJDIR)/msdos/dosmem.c \
$(TOPOBJDIR)/msdos/dpmi.c \
$(TOPOBJDIR)/msdos/fpu.c \
$(TOPOBJDIR)/msdos/int11.c \
$(TOPOBJDIR)/msdos/int12.c \
$(TOPOBJDIR)/msdos/int13.c \
@ -62,7 +63,6 @@ C_SRCS = \
$(TOPOBJDIR)/msdos/int26.c \
$(TOPOBJDIR)/msdos/int2a.c \
$(TOPOBJDIR)/msdos/int2f.c \
$(TOPOBJDIR)/msdos/int3d.c \
$(TOPOBJDIR)/msdos/int41.c \
$(TOPOBJDIR)/msdos/int4b.c \
$(TOPOBJDIR)/msdos/int5c.c \

4
dlls/winedos/dosvm.c
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@ -652,8 +652,8 @@ static const INTPROC real_mode_handlers[] =
/* 18 */ 0, 0, INT_Int1aHandler, 0, 0, 0, 0, 0,
/* 20 */ DOSVM_Int20Handler, DOSVM_Int21Handler, 0, 0, 0, INT_Int25Handler, 0, 0,
/* 28 */ 0, DOSVM_Int29Handler, INT_Int2aHandler, 0, 0, 0, 0, INT_Int2fHandler,
/* 30 */ 0, DOSVM_Int31Handler, 0, DOSVM_Int33Handler, 0, 0, 0, 0,
/* 38 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 30 */ 0, DOSVM_Int31Handler, 0, DOSVM_Int33Handler, INT_Int34Handler, INT_Int35Handler, INT_Int36Handler, INT_Int37Handler,
/* 38 */ INT_Int38Handler, INT_Int39Handler, INT_Int3aHandler, INT_Int3bHandler, INT_Int3cHandler, INT_Int3dHandler, INT_Int3eHandler, 0,
/* 40 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 48 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 50 */ 0, 0, 0, 0, 0, 0, 0, 0,

15
include/miscemu.h
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@ -225,6 +225,19 @@ extern void WINAPI INT_Int2aHandler(CONTEXT86*);
/* msdos/int2f.c */
extern void WINAPI INT_Int2fHandler(CONTEXT86*);
/* fpu.c */
extern void WINAPI INT_Int34Handler(CONTEXT86*);
extern void WINAPI INT_Int35Handler(CONTEXT86*);
extern void WINAPI INT_Int36Handler(CONTEXT86*);
extern void WINAPI INT_Int37Handler(CONTEXT86*);
extern void WINAPI INT_Int38Handler(CONTEXT86*);
extern void WINAPI INT_Int39Handler(CONTEXT86*);
extern void WINAPI INT_Int3aHandler(CONTEXT86*);
extern void WINAPI INT_Int3bHandler(CONTEXT86*);
extern void WINAPI INT_Int3cHandler(CONTEXT86*);
extern void WINAPI INT_Int3dHandler(CONTEXT86*);
extern void WINAPI INT_Int3eHandler(CONTEXT86*);
/* msdos/dpmi.c */
typedef void (WINAPI *RMCBPROC)(CONTEXT86*);
extern void WINAPI INT_Int31Handler(CONTEXT86*);
@ -259,7 +272,7 @@ extern char IO_pp_init(void);
*/
#define CTX_SEG_OFF_TO_LIN(context,seg,off) \
(ISV86(context) ? PTR_REAL_TO_LIN((seg),(off)) : \
(!seg || IS_SELECTOR_SYSTEM(seg))? (void *)(off) : MapSL(MAKESEGPTR((seg),(off))))
(!seg || IS_SELECTOR_SYSTEM(seg))? (void *)(ULONG_PTR)(off) : MapSL(MAKESEGPTR((seg),(off))))
#define INT_BARF(context,num) \
ERR( "int%x: unknown/not implemented parameters:\n" \

246
msdos/fpu.c Normal file
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@ -0,0 +1,246 @@
/*
* DOS interrupt 34->3e handlers. All FPU interrupt code should be
* moved into this file.
* int 3d is not activated yet...
*
* Copyright 2002 Robert 'Admiral' Coeyman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include "msdos.h"
#include "miscemu.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(int);
/*
* The actual work is done by a single routine.
*/
static void FPU_ModifyCode(CONTEXT86 *context, BYTE Opcode);
/**********************************************************************
* INT_Int34Handler (WPROCS.152)
*
* Handler for int 34 (FLOATING POINT EMULATION - Opcode 0xd8).
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int34Handler(CONTEXT86 *context)
{
TRACE("Int 0x34 called-- FP opcode 0xd8");
FPU_ModifyCode(context, 0xd8);
}
/**********************************************************************
* INT_Int35Handler (WPROCS.153)
*
* Handler for int 35 (FLOATING POINT EMULATION - Opcode 0xd9).
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int35Handler(CONTEXT86 *context)
{
TRACE("Int 0x35 called-- FP opcode 0xd9");
FPU_ModifyCode(context, 0xd9);
}
/**********************************************************************
* INT_Int36Handler (WPROCS.154)
*
* Handler for int 36 (FLOATING POINT EMULATION - Opcode 0xda).
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int36Handler(CONTEXT86 *context)
{
TRACE("Int 0x36 called-- FP opcode 0xda");
FPU_ModifyCode(context, 0xda);
}
/**********************************************************************
* INT_Int37Handler (WPROCS.155)
*
* Handler for int 37 (FLOATING POINT EMULATION - Opcode 0xdb).
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int37Handler(CONTEXT86 *context)
{
TRACE("Int 0x37 called-- FP opcode 0xdb");
FPU_ModifyCode(context, 0xdb);
}
/**********************************************************************
* INT_Int38Handler (WPROCS.156)
*
* Handler for int 38 (FLOATING POINT EMULATION - Opcode 0xdc).
*
* Between versions 3.0 and 5.01, the original PC-MOS API call that
* was here was moved to int 0xd4.
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int38Handler(CONTEXT86 *context)
{
TRACE("Int 0x38 called-- FP opcode 0xdc");
FPU_ModifyCode(context, 0xdc);
}
/**********************************************************************
* INT_Int39Handler (WPROCS.157)
*
* Handler for int 39 (FLOATING POINT EMULATION - Opcode 0xdd).
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int39Handler(CONTEXT86 *context)
{
TRACE("Int 0x39 called-- FP opcode 0xdd");
FPU_ModifyCode(context, 0xdd);
}
/**********************************************************************
* INT_Int3aHandler (WPROCS.158)
*
* Handler for int 3a (FLOATING POINT EMULATION - Opcode 0xde).
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int3aHandler(CONTEXT86 *context)
{
TRACE("Int 0x3a called-- FP opcode 0xde");
FPU_ModifyCode(context, 0xde);
}
/**********************************************************************
* INT_Int3bHandler (WPROCS.159)
*
* Handler for int 3B (FLOATING POINT EMULATION - Opcode 0xdf).
*
* The interrupt list isn't specific about what this interrupt
* actually does. [ interrup.m ]
*/
void WINAPI INT_Int3bHandler(CONTEXT86 *context)
{
TRACE("Int 0x3b called-- FP opcode 0xdf");
FPU_ModifyCode(context, 0xdf);
}
/**********************************************************************
* INT_Int3cHandler (WPROCS.160)
*
* Handler for int 3C (FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE).
*
* Generated code is CD 3C xy mm ... (CD = int | 3C = this interrupt)
* xy is a modified ESC code and mm is the modR/M byte.
* xy byte seems to be encoded as ss011xxx or ss000xxx
* ss= segment override.
* 00 -> DS
* 01 -> SS
* 10 -> CS
* 11 -> ES
*
* 11011xxx should be the opcode instruction.
*/
void WINAPI INT_Int3cHandler(CONTEXT86 *context)
{
FIXME("Int 3C NOT Implemented");
INT_BARF(context, 0x3c);
}
/**********************************************************************
* INT_Int3dHandler (WPROCS.161)
*
* Handler for int 3D (FLOATING POINT EMULATION - Standalone FWAIT).
*
* Opcode 0x90 is a NOP. It just fills space where the 3D was.
*/
void WINAPI INT_Int3dHandler(CONTEXT86 *context)
{
TRACE("Int 0x3d called-- Standalone FWAIT");
FPU_ModifyCode(context, 0x90);
}
/**********************************************************************
* INT_Int3eHandler (WPROCS.162)
*
* FLOATING POINT EMULATION -- Borland "Shortcut" call.
* The two bytes following the int 3E instruction are
* the subcode and a NOP ( 0x90 ), except for subcodes DC and DE
* where the second byte is the register count.
*
* Direct access 4.0 modifies and does not restore this vector.
*
*/
void WINAPI INT_Int3eHandler(CONTEXT86 *context)
{
FIXME("Int 3E NOT Implemented");
INT_BARF(context, 0x3e);
}
/**********************************************************************
* FPU_ModifyCode
*
* This is the function that inserts the 0x9b fwait instruction
* and the actual FPU opcode into the program.
* -A.C.
*
* Code thanks to Ove Kaaven
*/
static void FPU_ModifyCode(CONTEXT86 *context, BYTE Opcode)
{
WORD *stack = CTX_SEG_OFF_TO_LIN(context, context->SegSs, context->Esp);
BYTE *code = CTX_SEG_OFF_TO_LIN(context, stack[1], stack[0]);
/*
* All *NIX systems should have a real or kernel emulated FPU.
*/
code[-2] = 0x9b; /* The fwait instruction */
code[-1] = Opcode; /* Insert the opcode */
if ( stack[0] < 2 ) FIXME("Backed up over a segment boundry in FPU code.");
stack[0] -= 2; /* back up the return address 2 bytes */
TRACE("Modified code in FPU int call to 0x9b 0x%x",Opcode);
}

51
msdos/int3d.c
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@ -1,51 +0,0 @@
/*
* DOS interrupt 3d handler.
* Copyright 1997 Len White
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include "msdos.h"
#include "miscemu.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(int);
/**********************************************************************
* INT_Int3dHandler (WPROCS.161)
*
* Handler for int 3d (FLOATING POINT EMULATION - STANDALONE FWAIT).
*/
void WINAPI INT_Int3dHandler(CONTEXT86 *context)
{
switch(AH_reg(context))
{
case 0x00:
break;
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0xb:
AH_reg(context) = 0;
break;
default:
INT_BARF( context, 0x3d );
}
}