static INTERRUPT_GEN( gcpinbal_interrupt )
{
/* Unsure of actual sequence */
timer_set(ATTOTIME_IN_CYCLES(500,0), NULL, 0, gcpinbal_interrupt1);
// timer_set(ATTOTIME_IN_CYCLES(1000,0), NULL, 0, gcpinbal_interrupt3);
cpunum_set_input_line(machine, 0, 4, HOLD_LINE);
}
static WRITE16_HANDLER( wgp_adinput_w )
{
/* Each write invites a new interrupt as soon as the
hardware has got the next a/d conversion ready. We set a token
delay of 10000 cycles although our inputs are always ready. */
timer_set(ATTOTIME_IN_CYCLES(10000,0), NULL, 0, wgp_interrupt6);
}
static READ8_HANDLER ( combasc_YM2203_status_port_0_r )
{
static int boost = 1;
int status = YM2203_status_port_0_r(machine,0);
if (activecpu_get_pc() == 0x334)
{
if (boost)
{
boost = 0;
timer_adjust_periodic(combasc_interleave_timer, attotime_zero, 0, ATTOTIME_IN_CYCLES(80,1));
}
else if (status & 2)
{
boost = 1;
timer_adjust_oneshot(combasc_interleave_timer, attotime_zero, 0);
}
}
return(status);
}
static INTERRUPT_GEN( topspeed_cpub_interrupt )
{
/* Unsure how many int6's per frame */
timer_set(ATTOTIME_IN_CYCLES(200000-500,0), NULL, 0, topspeed_cpub_interrupt6);
cpunum_set_input_line(2, 5, HOLD_LINE);
}
static INTERRUPT_GEN( wgp_cpub_interrupt )
{
timer_set(ATTOTIME_IN_CYCLES(200000-500,0), NULL, 0, wgp_cpub_interrupt6);
cpunum_set_input_line(machine, 2, 4, HOLD_LINE);
}