protected IDMAChannel CreateDMAChannel(byte channel)
{
IDMAChannel dmaChannel = new DMAChannel(channel);
hardware.Add(dmaChannel);
return(dmaChannel);
}
private void DoDMA(DMAChannel DMA)
{
this.Log($"DMA: {DMA.SAD:x8} -> {DMA.DAD:x8}");
uint UnitLength = DMA.UnitLength; // bytes: 32 / 16 bits
if (UnitLength == 4)
{
// force alignment happens in memory handler
this.mem.SetWordAt(DMA.DAD, this.mem.GetWordAt(DMA.SAD));
}
else // 16 bit
{
// force alignment happens in memory handler
this.mem.SetHalfWordAt(DMA.DAD, this.mem.GetHalfWordAt(DMA.SAD));
}
DMA.UpdateDMASAD();
DMA.UpdateDMADAD();
DMA.UnitCount--;
if (DMA.Empty)
{
InstructionCycles += DMA.End();
}
}
