| /* |
| * Interrupt vectors emulation |
| * |
| * Copyright 1995 Alexandre Julliard |
| */ |
| |
| #include <sys/types.h> |
| |
| #include "windows.h" |
| #include "drive.h" |
| #include "miscemu.h" |
| #include "msdos.h" |
| #include "module.h" |
| #include "stackframe.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 0x10: |
| INT_Int10Handler(context); |
| break; |
| case 0x11: |
| INT_Int11Handler(context); |
| break; |
| case 0x13: |
| INT_Int13Handler(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 0x2f: |
| INT_Int2fHandler(context); |
| break; |
| case 0x31: |
| INT_Int31Handler(context); |
| break; |
| case 0x29: |
| INT_Int29Handler(context); |
| break; |
| default: |
| FIXME(int, "Unknown Interrupt in DOS mode: 0x%x\n", intnum); |
| return 1; |
| } |
| return 0; |
| } |