msdos/int4b.c

   1 /*
   2  * DOS interrupt 4bh handler
   3  */
   4
   5 #include "miscemu.h"
   6
   7 /***********************************************************************
   8  *           INT_Int4bHandler
   9  *
  10  */
  11 void WINAPI INT_Int4bHandler( CONTEXT *context )
  12 {
  13     switch(AH_reg(context))
  14     {
  15     case 0x81: /* Virtual DMA Spec (IBM SCSI interface) */
  16         if(AL_reg(context) != 0x02) /* if not install check */
  17         {
  18             SET_CFLAG(context);
  19             AL_reg(context) = 0x0f; /* function is not implemented */
  20         }
  21         break;
  22     default:
  23         INT_BARF(context, 0x4b);
  24     }
  25 }