miscemu/interrupts.c

   1 /*
   2  * Interrupt vectors emulation
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #include "windows.h"
   8 #include "miscemu.h"
   9 #include "module.h"
  10 #include "stddebug.h"
  11 #include "debug.h"
  12
  13 static SEGPTR INT_Vectors[256];
  14
  15   /* Ordinal number for interrupt 0 handler in WINPROCS.DLL */
  16 #define FIRST_INTERRUPT_ORDINAL 100
  17
  18
  19 /**********************************************************************
  20  *          INT_Init
  21  */
  22 BOOL INT_Init(void)
  23 {
  24     SEGPTR addr, dummyHandler;
  25     WORD vector;
  26     HMODULE hModule = GetModuleHandle( "WINPROCS" );
  27
  28     dummyHandler = MODULE_GetEntryPoint( hModule, FIRST_INTERRUPT_ORDINAL+256);
  29     for (vector = 0; vector < 256; vector++)
  30     {
  31         addr = MODULE_GetEntryPoint( hModule, FIRST_INTERRUPT_ORDINAL+vector );
  32         INT_Vectors[vector] = addr ? addr : dummyHandler;
  33     }
  34     return TRUE;
  35 }
  36
  37
  38 /**********************************************************************
  39  *          INT_GetHandler
  40  *
  41  * Return the interrupt vector for a given interrupt.
  42  */
  43 SEGPTR INT_GetHandler( BYTE intnum )
  44 {
  45     dprintf_int( stddeb, "Get interrupt vector %02x -> %04x:%04x\n",
  46                  intnum, HIWORD(INT_Vectors[intnum]),
  47                  LOWORD(INT_Vectors[intnum]) );
  48     return INT_Vectors[intnum];
  49 }
  50
  51
  52 /**********************************************************************
  53  *          INT_SetHandler
  54  *
  55  * Set the interrupt handler for a given interrupt.
  56  */
  57 void INT_SetHandler( BYTE intnum, SEGPTR handler )
  58 {
  59     dprintf_int( stddeb, "Set interrupt vector %02x <- %04x:%04x\n",
  60                  intnum, HIWORD(handler), LOWORD(handler) );
  61     INT_Vectors[intnum] = handler;
  62 }
  63
  64
  65 /**********************************************************************
  66  *          INT_DummyHandler
  67  */
  68 void INT_DummyHandler( struct sigcontext_struct context )
  69 {
  70     dprintf_int( stddeb, "Dummy handler called!\n" );
  71 }
  72
  73 /**********************************************************************
  74  *          INT_Int10Handler
  75  */
  76 void INT_Int10Handler( struct sigcontext_struct context )
  77 {
  78     dprintf_int( stddeb, "int 10 called indirectly through handler!\n" );
  79     do_int10( &context );
  80 }
  81
  82
  83 /**********************************************************************
  84  *          INT_Int13Handler
  85  */
  86 void INT_Int13Handler( struct sigcontext_struct context )
  87 {
  88     dprintf_int( stddeb, "int 13 called indirectly through handler!\n" );
  89     do_int13( &context );
  90 }
  91
  92
  93 /**********************************************************************
  94  *          INT_Int15Handler
  95  */
  96 void INT_Int15Handler( struct sigcontext_struct context )
  97 {
  98     dprintf_int( stddeb, "int 15 called indirectly through handler!\n" );
  99     do_int15( &context );
 100 }
 101
 102
 103 /**********************************************************************
 104  *          INT_Int16Handler
 105  */
 106 void INT_Int16Handler( struct sigcontext_struct context )
 107 {
 108     dprintf_int( stddeb, "int 16 called indirectly through handler!\n" );
 109     do_int16( &context );
 110 }
 111
 112
 113 /**********************************************************************
 114  *          INT_Int1aHandler
 115  */
 116 void INT_Int1aHandler( struct sigcontext_struct context )
 117 {
 118     dprintf_int( stddeb, "int 1a called indirectly through handler!\n" );
 119     do_int1a( &context );
 120 }
 121
 122
 123 /**********************************************************************
 124  *          INT_Int21Handler
 125  */
 126 void INT_Int21Handler( struct sigcontext_struct context )
 127 {
 128     dprintf_int( stddeb, "int 21 called indirectly through handler!\n" );
 129     do_int21( &context );
 130 }
 131
 132
 133 /**********************************************************************
 134  *          INT_Int25Handler
 135  */
 136 void INT_Int25Handler( struct sigcontext_struct context )
 137 {
 138     dprintf_int( stddeb, "int 25 called indirectly through handler!\n" );
 139     do_int25( &context );
 140 }
 141
 142
 143 /**********************************************************************
 144  *          INT_Int26Handler
 145  */
 146 void INT_Int26Handler( struct sigcontext_struct context )
 147 {
 148     dprintf_int( stddeb, "int 26 called indirectly through handler!\n" );
 149     do_int26( &context );
 150 }
 151
 152
 153 /**********************************************************************
 154  *          INT_Int2aHandler
 155  */
 156 void INT_Int2aHandler( struct sigcontext_struct context )
 157 {
 158     dprintf_int( stddeb, "int 2a called indirectly through handler!\n" );
 159     do_int2a( &context );
 160 }
 161
 162
 163 /**********************************************************************
 164  *          INT_Int2fHandler
 165  */
 166 void INT_Int2fHandler( struct sigcontext_struct context )
 167 {
 168     dprintf_int( stddeb, "int 2f called indirectly through handler!\n" );
 169     do_int2f( &context );
 170 }
 171
 172
 173 /**********************************************************************
 174  *          INT_Int31Handler
 175  */
 176 void INT_Int31Handler( struct sigcontext_struct context )
 177 {
 178     dprintf_int( stddeb, "int 31 called indirectly through handler!\n" );
 179     do_int31( &context );
 180 }
 181
 182
 183 /**********************************************************************
 184  *          INT_Int5cHandler
 185  */
 186 void INT_Int5cHandler( struct sigcontext_struct context )
 187 {
 188     dprintf_int( stddeb, "int 5c called indirectly through handler!\n" );
 189     do_int5c( &context );
 190 }