dlls/winedos/int4b.c

   1 /*
   2  * DOS interrupt 4bh handler
   3  */
   4
   5 #include <stdio.h>
   6 #include "dosexe.h"
   7 #include "wine/debug.h"
   8
   9 WINE_DEFAULT_DEBUG_CHANNEL(int);
  10
  11 /***********************************************************************
  12  *           DOSVM_Int4bHandler (WINEDOS16.175)
  13  *
  14  */
  15 void WINAPI DOSVM_Int4bHandler( CONTEXT86 *context )
  16 {
  17     switch(AH_reg(context))
  18     {
  19     case 0x81: /* Virtual DMA Spec (IBM SCSI interface) */
  20         if(AL_reg(context) != 0x02) /* if not install check */
  21         {
  22             SET_CFLAG(context);
  23             SET_AL( context, 0x0f ); /* function is not implemented */
  24         }
  25         break;
  26     default:
  27         INT_BARF(context, 0x4b);
  28     }
  29 }