wine/msdos/int11.c
2002-05-31 23:06:46 +00:00

97 lines
2.9 KiB
C

/*
* BIOS interrupt 11h handler
*
* Copyright 1996 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "windef.h"
#include "miscemu.h"
#include "msdos.h"
#include "file.h"
#include "wine/debug.h"
/**********************************************************************
* INT_Int11Handler (WPROCS.117)
*
* Handler for int 11h (get equipment list).
*/
void WINAPI INT_Int11Handler( CONTEXT86 *context )
{
int diskdrives = 0;
int parallelports = 0;
int serialports = 0;
int x;
/* borrowed from Ralph Brown's interrupt lists
bits 15-14: number of parallel devices
bit 13: [Conv] Internal modem
bit 12: reserved
bits 11- 9: number of serial devices
bit 8: reserved
bits 7- 6: number of diskette drives minus one
bits 5- 4: Initial video mode:
00b = EGA,VGA,PGA
01b = 40 x 25 color
10b = 80 x 25 color
11b = 80 x 25 mono
bit 3: reserved
bit 2: [PS] =1 if pointing device
[non-PS] reserved
bit 1: =1 if math co-processor
bit 0: =1 if diskette available for boot
*/
/* Currently the only of these bits correctly set are:
bits 15-14 } Added by William Owen Smith,
bits 11-9 } wos@dcs.warwick.ac.uk
bits 7-6
bit 2 (always set)
*/
if (GetDriveTypeA("A:\\") == DRIVE_REMOVABLE) diskdrives++;
if (GetDriveTypeA("B:\\") == DRIVE_REMOVABLE) diskdrives++;
if (diskdrives) diskdrives--;
for (x=0; x < 9; x++)
{
char temp[16],name[16];
sprintf(name,"COM%d",x+1);
PROFILE_GetWineIniString("serialports",name,"*",temp,sizeof temp);
if(strcmp(temp,"*"))
serialports++;
sprintf(name,"LPT%d",x+1);
PROFILE_GetWineIniString("parallelports",name,"*",temp,sizeof temp);
if(strcmp(temp,"*"))
parallelports++;
}
if (serialports > 7) /* 3 bits -- maximum value = 7 */
serialports=7;
if (parallelports > 3) /* 2 bits -- maximum value = 3 */
parallelports=3;
AX_reg(context) = (diskdrives << 6) | (serialports << 9) |
(parallelports << 14) | 0x02;
}