msdos/int41.c

   1 /*
   2  * DOS interrupt 41h handler  -- Windows Kernel Debugger
   3  *
   4  * Check debugsys.inc from the DDK for docu.
   5  */
   6
   7 #include "miscemu.h"
   8
   9 /***********************************************************************
  10  *           INT_Int41Handler
  11  *
  12  */
  13 void WINAPI INT_Int41Handler( CONTEXT *context )
  14 {
  15     if ( ISV86(context) )
  16     {
  17         /* Real-mode debugger services */
  18         switch ( AX_reg(context) )
  19         {
  20         default:
  21             INT_BARF( context, 0x41 );
  22             break;
  23         }
  24     }
  25     else
  26     {
  27         /* Protected-mode debugger services */
  28         switch ( AX_reg(context) )
  29         {
  30         case 0x4f:
  31         case 0x50:
  32         case 0x150:
  33         case 0x51:
  34         case 0x52:
  35         case 0x152:
  36         case 0x59:
  37         case 0x5a:
  38         case 0x5b:
  39         case 0x5c:
  40         case 0x5d:
  41             /* Notifies the debugger of a lot of stuff. We simply ignore it
  42                for now, but some of the info might actually be useful ... */
  43             break;
  44
  45         default:
  46             INT_BARF( context, 0x41 );
  47             break;
  48         }
  49     }
  50 }
  51