public override void ClockCPU()
{
if ((timerreg & 2) != 0) // && timervalue > 0)
{
if (timervalue != 0)
{
timervalue--;
}
if (timervalue == 0)
{
/*
* if ((timerreg & 1) != 0)
* {
* timervalue = timerlatch;
* //timervalue = 0xFFFF;
* }
* else
* {
* timerreg &= unchecked((byte)~2);
* timervalue = 0;
* timerlatch = 0;
* }
*/
timervalue = timerlatch;
timerirq = true;
}
}
audio.Clock();
}
public override void ClockCPU()
{
if ((timerreg & 2) != 0 && diskenable)
{
if (timervalue != 0)
{
timervalue--;
}
if (timervalue == 0)
{
timervalue = timerlatch;
timerirq = true;
if ((timerreg & 1) == 0)
{
timerreg -= 2;
}
}
}
audio.Clock();
}
public override void ClockCPU()
{
if ((timerreg & 2) != 0 && timervalue > 0)
{
timervalue--;
if (timervalue == 0)
{
if ((timerreg & 1) != 0)
{
timervalue = timerlatch;
}
else
{
timerreg &= unchecked ((byte)~2);
timervalue = 0;
timerlatch = 0;
}
timerirq = true;
}
}
audio.Clock();
}
public override void ClockCPU()
{
if ((timerreg & 2) != 0 && diskenable)
{
if (timervalue != 0)
{
timervalue--;
}
else
{
timervalue = timerlatch;
//timerirq = true;
if ((timerreg & 1) == 0)
{
timerreg -= 2;
}
if (!timer_irq_active)
{
timer_irq_active = true;
timerirq_cd = 3;
}
}
}
if (timerirq_cd > 0)
{
timerirq_cd--;
}
if ((timerirq_cd == 0) && (timer_irq_active))
{
timerirq = true;
}
audio.Clock();
}
