void pc_fdc_family_device::check_irq()
{
bool pirq = irq;
irq = fdc_irq && (dor & 4) && (dor & 8);
if(irq != pirq && !intrq_cb.isnull()) {
logerror("%s: pc_irq = %d\n", tag(), irq);
intrq_cb(irq);
}
}
void pc_fdc_family_device::check_irq()
{
bool pirq = irq;
irq = fdc_irq && (dor & 4) && (dor & 8);
if(irq != pirq && !intrq_cb.isnull()) {
LOG("pc_irq = %d\n", irq);
intrq_cb(irq);
}
}
void scc8530_t::updateirqs()
{
int irqstat;
irqstat = 0;
if (MasterIRQEnable)
{
if ((channel[0].txIRQEnable) && (channel[0].txIRQPending))
{
IRQType = IRQ_B_TX;
irqstat = 1;
}
else if ((channel[1].txIRQEnable) && (channel[1].txIRQPending))
{
IRQType = IRQ_A_TX;
irqstat = 1;
}
else if ((channel[0].extIRQEnable) && (channel[0].extIRQPending))
{
IRQType = IRQ_B_EXT;
irqstat = 1;
}
else if ((channel[1].extIRQEnable) && (channel[1].extIRQPending))
{
IRQType = IRQ_A_EXT;
irqstat = 1;
}
}
else
{
IRQType = IRQ_NONE;
}
// printf("SCC: irqstat %d, last %d\n", irqstat, lastIRQStat);
// printf("ch0: en %d pd %d ch1: en %d pd %d\n", channel[0].txIRQEnable, channel[0].txIRQPending, channel[1].txIRQEnable, channel[1].txIRQPending);
// don't spam the driver with unnecessary transitions
if (irqstat != lastIRQStat)
{
lastIRQStat = irqstat;
// tell the driver the new IRQ line status if possible
#if LOG_SCC
printf("SCC8530 IRQ status => %d\n", irqstat);
#endif
if(!intrq_cb.isnull())
intrq_cb(irqstat);
}
}
void scc8530_t::acknowledge()
{
if(!intrq_cb.isnull())
intrq_cb(0);
}
