Sweden-Number/msdos/int15.c

70 lines
1.8 KiB
C

/*
* BIOS interrupt 15h handler
*/
#include <stdlib.h>
#include "miscemu.h"
#include "debug.h"
/**********************************************************************
* INT_Int15Handler
*
* Handler for int 15h (old cassette interrupt).
*/
void WINAPI INT_Int15Handler( CONTEXT *context )
{
switch(AH_reg(context))
{
case 0x88: /* get size of memory above 1 M */
AX_reg(context) = 64; /* FIXME: are 64K ok? */
RESET_CFLAG(context);
break;
case 0xc0: /* GET CONFIGURATION */
if (ISV86(context)) /* real */
ES_reg(context) = 0xf000;
else
ES_reg(context) = DOSMEM_BiosSysSeg;
BX_reg(context) = 0xe6f5;
AH_reg(context) = 0x0;
RESET_CFLAG(context);
break;
case 0xc2:
switch(AL_reg(context))
{
case 0x00: /* Enable-Disable Pointing Device (mouse) */
/* BH = newstate, 00h = disabled 01h = enabled */
switch(BH_reg(context))
{
case 0x00:
FIXME(int, "Disable Pointing Device - not implemented\n");
break;
case 0x01:
FIXME(int, "Enable Pointing Device - not implemented\n");
break;
default:
INT_BARF( context, 0x15 );
break;
}
AH_reg(context) = 0x00; /* successful */
break;
case 0x02: /* Set Sampling Rate */
/* BH = sampling rate */
FIXME(int, "Set Sampling Rate - not implemented\n");
AH_reg(context) = 0x00; /* successful */
break;
case 0x04: /* Get Pointing Device Type */
FIXME(int, "Get Pointing Device Type - not implemented\n");
BH_reg(context) = 0x01;/*Device id FIXME what is it suposed to be?*/
break;
default:
INT_BARF( context, 0x15 );
}
break;
default:
INT_BARF( context, 0x15 );
}
}