Sweden-Number/msdos/int15.c

96 lines
2.4 KiB
C

/*
* BIOS interrupt 15h handler
*/
#include <stdlib.h>
#include "miscemu.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(int);
/**********************************************************************
* INT_Int15Handler
*
* Handler for int 15h
*/
void WINAPI INT_Int15Handler( CONTEXT86 *context )
{
switch(AH_reg(context))
{
case 0x84: /* read joystick information */
FIXME("Read joystick information not implemented\n");
/* FIXME: report status as if no game port exists */
switch(DX_reg(context))
{
case 0x0: /* read joystick switches */
AL_reg(context) = 0x0; /* all switches open */
break;
case 0x1: /* read joystick position */
AX_reg(context) = 0x0;
BX_reg(context) = 0x0;
CX_reg(context) = 0x0;
DX_reg(context) = 0x0;
break;
default:
INT_BARF( context, 0x15 );
break;
}
RESET_CFLAG(context);
break;
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 */
context->SegEs = 0xf000;
else
context->SegEs = 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("Disable Pointing Device - not implemented\n");
break;
case 0x01:
FIXME("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("Set Sampling Rate - not implemented\n");
AH_reg(context) = 0x00; /* successful */
break;
case 0x04: /* Get Pointing Device Type */
FIXME("Get Pointing Device Type - not implemented\n");
BH_reg(context) = 0x01;/*Device id FIXME what is it supposed to be?*/
break;
default:
INT_BARF( context, 0x15 );
}
break;
default:
INT_BARF( context, 0x15 );
}
}