DMA during HBlank ...
Posted: Sat Jul 01, 2023 5:45 am
Can the Genesis DMA during HBlank, and if so, what's the difference between how it works compared to the SNES' HDMA?
What are the advantages/disadvantages of each of the approaches there?
Because, I think I've read the Genesis can DMA during active scan and the SNES cannot, which seems like a huge advantage for Genesis there, but I assume that's what HDMA somewhat compensates for on SNES, yet I don't understand how that would be the case if Genesis can DMA during HBlank too anyway.
So, any insight on how the two systems different approaches work there (in layman's terms), for both DMA and HDMA actually (if we just pretend that name applies to Genesis too), would be much appreciated.
What are the advantages/disadvantages of each of the approaches there?
Because, I think I've read the Genesis can DMA during active scan and the SNES cannot, which seems like a huge advantage for Genesis there, but I assume that's what HDMA somewhat compensates for on SNES, yet I don't understand how that would be the case if Genesis can DMA during HBlank too anyway.
So, any insight on how the two systems different approaches work there (in layman's terms), for both DMA and HDMA actually (if we just pretend that name applies to Genesis too), would be much appreciated.