msdos/int15.c

   1 /*
   2  * BIOS interrupt 15h handler
   3  *
   4  * Copyright 1997 Jan Willamowius
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdlib.h>
  22 #include "miscemu.h"
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(int);
  26
  27
  28 /**********************************************************************
  29  *          INT_Int15Handler (WPROCS.121)
  30  *
  31  * Handler for int 15h
  32  */
  33 void WINAPI INT_Int15Handler( CONTEXT86 *context )
  34 {
  35     switch(AH_reg(context))
  36     {
  37     case 0x84: /* read joystick information */
  38         FIXME("Read joystick information not implemented\n");
  39
  40         /* FIXME: report status as if no game port exists */
  41         switch(DX_reg(context))
  42         {
  43         case 0x0: /* read joystick switches */
  44             AL_reg(context) = 0x0; /* all switches open */
  45             break;
  46         case 0x1: /* read joystick position */
  47             AX_reg(context) = 0x0;
  48             BX_reg(context) = 0x0;
  49             CX_reg(context) = 0x0;
  50             DX_reg(context) = 0x0;
  51             break;
  52         default:
  53             INT_BARF( context, 0x15 );
  54             break;
  55         }
  56
  57         RESET_CFLAG(context);
  58
  59         break;
  60
  61     case 0x88: /* get size of memory above 1 M */
  62         AX_reg(context) = 64;  /* FIXME: are 64K ok? */
  63         RESET_CFLAG(context);
  64         break;
  65
  66     case 0xc0: /* GET CONFIGURATION */
  67         if (ISV86(context)) /* real */
  68             context->SegEs = 0xf000;
  69         else
  70             context->SegEs = DOSMEM_BiosSysSeg;
  71         BX_reg(context) = 0xe6f5;
  72         AH_reg(context) = 0x0;
  73         RESET_CFLAG(context);
  74         break;
  75     case 0xc2:
  76         switch(AL_reg(context))
  77         {
  78         case 0x00: /* Enable-Disable Pointing Device (mouse) */
  79             /* BH = newstate, 00h = disabled 01h = enabled */
  80             switch(BH_reg(context))
  81             {
  82                 case 0x00:
  83                     FIXME("Disable Pointing Device - not implemented\n");
  84                     break;
  85                 case 0x01:
  86                     FIXME("Enable Pointing Device - not implemented\n");
  87                     break;
  88                 default:
  89                     INT_BARF( context, 0x15 );
  90                     break;
  91             }
  92             AH_reg(context) = 0x00; /* successful */
  93             break;
  94         case 0x02: /* Set Sampling Rate */
  95             /* BH = sampling rate */
  96             FIXME("Set Sampling Rate - not implemented\n");
  97             AH_reg(context) = 0x00; /* successful */
  98             break;
  99         case 0x04: /* Get Pointing Device Type */
 100             FIXME("Get Pointing Device Type - not implemented\n");
 101             BH_reg(context) = 0x01;/*Device id FIXME what is it supposed to be?*/
 102             break;
 103         default:
 104             INT_BARF( context, 0x15 );
 105         }
 106         break;
 107
 108     default:
 109         INT_BARF( context, 0x15 );
 110     }
 111 }