msdos/int3d.c

   1 /*
   2  * DOS interrupt 3d handler.
   3  * Copyright 1997 Len White
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include <stdlib.h>
  21 #include "msdos.h"
  22 #include "miscemu.h"
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(int);
  26
  27 /**********************************************************************
  28  *          INT_Int3dHandler (WPROCS.161)
  29  *
  30  * Handler for int 3d (FLOATING POINT EMULATION - STANDALONE FWAIT).
  31  */
  32 void WINAPI INT_Int3dHandler(CONTEXT86 *context)
  33 {
  34     switch(AH_reg(context))
  35     {
  36     case 0x00:
  37         break;
  38
  39     case 0x02:
  40     case 0x03:
  41     case 0x04:
  42     case 0x05:
  43     case 0xb:
  44         AH_reg(context) = 0;
  45         break;
  46
  47     default:
  48         INT_BARF( context, 0x3d );
  49     }
  50 }
  51