Re: Building a 6502 peripheral - timing

Den Fri, 16 Mar 2018 07:50:13 +0100 skrev And Fachat <afachat@gmx.de>:
> Also, with " take the address during phi2 high " is critical like in
> the c64, as the address line may still change at the beginning of the
> cycle. So if you have IO here that e.g. clears the interrupt when
> reading the interrupt register, that may accidentally trigger here.

It seems like that kind of stuff should ideally be triggered by the
falling edge of PHI2.

-- 
(\_/) Copy the bunny to your mails to help
(O.o) him achieve world domination.
(> <) Come join the dark side.
/_|_\ We have cookies.