158 lines
4.0 KiB
C
158 lines
4.0 KiB
C
/*
|
|
* Interrupt vectors emulation
|
|
*
|
|
* Copyright 1995 Alexandre Julliard
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include "windef.h"
|
|
#include "miscemu.h"
|
|
#include "msdos.h"
|
|
#include "debug.h"
|
|
|
|
static FARPROC16 INT_Vectors[256];
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_GetPMHandler
|
|
*
|
|
* Return the protected mode interrupt vector for a given interrupt.
|
|
*/
|
|
FARPROC16 INT_GetPMHandler( BYTE intnum )
|
|
{
|
|
return INT_Vectors[intnum];
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_SetPMHandler
|
|
*
|
|
* Set the protected mode interrupt handler for a given interrupt.
|
|
*/
|
|
void INT_SetPMHandler( BYTE intnum, FARPROC16 handler )
|
|
{
|
|
TRACE(int, "Set protected mode interrupt vector %02x <- %04x:%04x\n",
|
|
intnum, HIWORD(handler), LOWORD(handler) );
|
|
INT_Vectors[intnum] = handler;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_GetRMHandler
|
|
*
|
|
* Return the real mode interrupt vector for a given interrupt.
|
|
*/
|
|
FARPROC16 INT_GetRMHandler( BYTE intnum )
|
|
{
|
|
return ((FARPROC16*)DOSMEM_MemoryBase(0))[intnum];
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_SetRMHandler
|
|
*
|
|
* Set the real mode interrupt handler for a given interrupt.
|
|
*/
|
|
void INT_SetRMHandler( BYTE intnum, FARPROC16 handler )
|
|
{
|
|
TRACE(int, "Set real mode interrupt vector %02x <- %04x:%04x\n",
|
|
intnum, HIWORD(handler), LOWORD(handler) );
|
|
((FARPROC16*)DOSMEM_MemoryBase(0))[intnum] = handler;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_CtxGetHandler
|
|
*
|
|
* Return the interrupt vector for a given interrupt.
|
|
*/
|
|
FARPROC16 INT_CtxGetHandler( CONTEXT *context, BYTE intnum )
|
|
{
|
|
if (ISV86(context))
|
|
return ((FARPROC16*)V86BASE(context))[intnum];
|
|
else
|
|
return INT_GetPMHandler(intnum);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_CtxSetHandler
|
|
*
|
|
* Set the interrupt handler for a given interrupt.
|
|
*/
|
|
void INT_CtxSetHandler( CONTEXT *context, BYTE intnum, FARPROC16 handler )
|
|
{
|
|
if (ISV86(context)) {
|
|
TRACE(int, "Set real mode interrupt vector %02x <- %04x:%04x\n",
|
|
intnum, HIWORD(handler), LOWORD(handler) );
|
|
((FARPROC16*)V86BASE(context))[intnum] = handler;
|
|
} else
|
|
INT_SetPMHandler(intnum, handler);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_RealModeInterrupt
|
|
*
|
|
* Handle real mode interrupts
|
|
*/
|
|
int INT_RealModeInterrupt( BYTE intnum, PCONTEXT context )
|
|
{
|
|
/* we should really map to if1632/wprocs.spec, but not all
|
|
* interrupt handlers are adapted to support real mode yet */
|
|
switch (intnum) {
|
|
case 0x09:
|
|
INT_Int09Handler(context);
|
|
break;
|
|
case 0x10:
|
|
INT_Int10Handler(context);
|
|
break;
|
|
case 0x11:
|
|
INT_Int11Handler(context);
|
|
break;
|
|
case 0x12:
|
|
INT_Int12Handler(context);
|
|
break;
|
|
case 0x13:
|
|
INT_Int13Handler(context);
|
|
break;
|
|
case 0x15:
|
|
INT_Int15Handler(context);
|
|
break;
|
|
case 0x16:
|
|
INT_Int16Handler(context);
|
|
break;
|
|
case 0x17:
|
|
INT_Int17Handler(context);
|
|
break;
|
|
case 0x1a:
|
|
INT_Int1aHandler(context);
|
|
break;
|
|
case 0x20:
|
|
INT_Int20Handler(context);
|
|
break;
|
|
case 0x21:
|
|
DOS3Call(context);
|
|
break;
|
|
case 0x25:
|
|
INT_Int25Handler(context);
|
|
break;
|
|
case 0x29:
|
|
INT_Int29Handler(context);
|
|
break;
|
|
case 0x2f:
|
|
INT_Int2fHandler(context);
|
|
break;
|
|
case 0x31:
|
|
INT_Int31Handler(context);
|
|
break;
|
|
case 0x33:
|
|
INT_Int33Handler(context);
|
|
break;
|
|
default:
|
|
FIXME(int, "Unknown Interrupt in DOS mode: 0x%x\n", intnum);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|