msdos/int41.c

   1 /*
   2  * DOS interrupt 41h handler  -- Windows Kernel Debugger
   3  *
   4  * Check debugsys.inc from the DDK for docu.
   5  *
   6  * Copyright 1998 Ulrich Weigand
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <stdio.h>
  24 #include "miscemu.h"
  25 #include "wine/debug.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(int);
  28
  29 /***********************************************************************
  30  *           INT_Int41Handler (WPROCS.165)
  31  *
  32  */
  33 void WINAPI INT_Int41Handler( CONTEXT86 *context )
  34 {
  35     if ( ISV86(context) )
  36     {
  37         /* Real-mode debugger services */
  38         switch ( AX_reg(context) )
  39         {
  40         default:
  41             INT_BARF( context, 0x41 );
  42             break;
  43         }
  44     }
  45     else
  46     {
  47         /* Protected-mode debugger services */
  48         switch ( AX_reg(context) )
  49         {
  50         case 0x4f:
  51         case 0x50:
  52         case 0x150:
  53         case 0x51:
  54         case 0x52:
  55         case 0x152:
  56         case 0x59:
  57         case 0x5a:
  58         case 0x5b:
  59         case 0x5c:
  60         case 0x5d:
  61             /* Notifies the debugger of a lot of stuff. We simply ignore it
  62                for now, but some of the info might actually be useful ... */
  63             break;
  64
  65         default:
  66             INT_BARF( context, 0x41 );
  67             break;
  68         }
  69     }
  70 }
  71