static READ8_HANDLER( devram_r )
{
// There's an MCU here, possibly
switch (offset)
{
/* Reading efe0 probably resets a watchdog mechanism
that would reset the main cpu. We avoid this and patch
the rom instead (main cpu has to be reset once at startup) */
case 0xfe0:
return watchdog_reset_r(0);
/* Reading a word at eff2 probably yelds the product
of the words written to eff0 and eff2 */
case 0xff2:
case 0xff3:
{
int x = (devram[0xff0] + devram[0xff1] * 256) *
(devram[0xff2] + devram[0xff3] * 256);
if (offset == 0xff2) return (x & 0x00FF) >> 0;
else return (x & 0xFF00) >> 8;
} break;
/* Reading eff4, F0 times must yield at most 80-1 consecutive
equal values */
case 0xff4:
return rand();
default:
return devram[offset];
}
static void ohmygod_init_machine(void)
{
unsigned char *rom = memory_region(REGION_SOUND1);
/* the game requires the watchdog to fire during boot, so we have
to initialize it */
watchdog_reset_r(0);
sndbank = 0;
memcpy(rom + 0x20000,rom + 0x40000 + 0x20000 * sndbank,0x20000);
}
static READ16_HANDLER( mcat_wd_r )
{
watchdog_reset_r(0);
return 0xc00;
}
static READ8_HANDLER( funkybee_input_port_0_r )
{
watchdog_reset_r(space, 0);
return input_port_read(space->machine, "IN0");
}
static MACHINE_INIT( mcatadv )
{
watchdog_reset_r(0);
}
static READ8_HANDLER( funkybee_input_port_0_r )
{
watchdog_reset_r(0);
return input_port_0_r(offset);
}
static int funkybee_input_port_0_r(int offset)
{
watchdog_reset_r(0);
return input_port_0_r(offset);
}
static READ8_HANDLER( funkybee_input_port_0_r )
{
watchdog_reset_r(machine,0);
return input_port_read_indexed(machine,0);
}