public void ShouldReturnUndefinedWhenNoScanlineCopied()
{
TestContext.WriteLine("outputDmdDisplay, should return undefined when no scanline is copied");
var result = outputDmdDisplay.executeCycle(1);
Assert.That(result, Is.EqualTo(null));
}
public void executeCycle(int singleTicks)
{
if (hasAlphanumericDisplay)
{
outputAlphaDisplay.executeCycle(singleTicks);
return;
}
var dmdState = outputDmdDisplay.executeCycle(singleTicks);
// NOTE: if ram[OP.WPC_DMD_SCANLINE] > 0x1F then NO FIRQ call is made. scanline is never bigger than 0x1F.
if (dmdState != null && dmdState?.requestFIRQ != null && dmdState?.scanline == ram[OP.WPC_DMD_SCANLINE])
{
interruptCallback.firqFromDmd();
outputDmdDisplay.requestFIRQ = false;
}
}
