static TIMER_CALLBACK( main_callback )
{
starwars_state *state = machine.driver_data<starwars_state>();
if (riot6532_porta_in_get(state->m_riot) & 0x80)
logerror("Sound data not read %x\n",state->m_sound_data);
riot6532_porta_in_set(state->m_riot, 0x80, 0x80);
state->m_sound_data = param;
machine.scheduler().boost_interleave(attotime::zero, attotime::from_usec(100));
}
static READ8_DEVICE_HANDLER( r6532_porta_r )
{
/* Configured as follows: */
/* d7 (in) Main Ready Flag */
/* d6 (in) Sound Ready Flag */
/* d5 (out) Mute Speech */
/* d4 (in) Not Sound Self Test */
/* d3 (out) Hold Main CPU in Reset? */
/* + enable delay circuit? */
/* d2 (in) TMS5220 Not Ready */
/* d1 (out) TMS5220 Not Read */
/* d0 (out) TMS5220 Not Write */
/* Note: bit 4 is always set to avoid sound self test */
UINT8 olddata = riot6532_porta_in_get(device);
return (olddata & 0xc0) | 0x10 | (tms5220_readyq_r(devtag_get_device(device->machine, "tms")) << 2);
}
