msdos/int3d.c

   1 /*
   2  * DOS interrupt 3d handler.
   3  * Copyright 1997 Len White
   4  */
   5
   6 #include <stdlib.h>
   7 #include "msdos.h"
   8 #include "miscemu.h"
   9 /* #define DEBUG_INT */
  10 #include "debugtools.h"
  11
  12 /**********************************************************************
  13  *          INT_Int3dHandler
  14  *
  15  * Handler for int 3d (FLOATING POINT EMULATION - STANDALONE FWAIT).
  16  */
  17 void WINAPI INT_Int3dHandler(CONTEXT86 *context)
  18 {
  19     switch(AH_reg(context))
  20     {
  21     case 0x00:
  22         break;
  23
  24     case 0x02:
  25     case 0x03:
  26     case 0x04:
  27     case 0x05:
  28     case 0xb:
  29         AH_reg(context) = 0;
  30         break;
  31
  32     default:
  33         INT_BARF( context, 0x3d );
  34     }
  35 }
  36