Ian Collier wrote: > For the moment, assume that the screen is turned off or it happens to > be displaying the border. At this time, all accesses to main RAM are > restricted by the ASIC to occur only on every fourth cycle. (This does > not apply to external RAM or to ROM).
Ah, didn't suspect RAM contention for the effect - I thought that would come up further down the line tho! > However, for PUSH HL I believe it goes something like this <snip> Can you recommend a reference for this sort of instruction detail? I'd be game to go through it at some point to try and get the rounding right to implement RAM contention... Thanks for the explanation Ian! Si
