On Oct 21, 2020, at 3:33 AM, Ciaran Anscomb <cocomalt at 6809.org.uk> wrote: > > As an example, I think it's nigh on impossible to play (unpatched) > Donut Dilemma under emulation on some PC keyboards. I wasn’t aware of this. What is the cause? How does the keyboard scan work? Does it allow up to 8 keys if they are all on the same column or row?