From: Rainer Buchty (buchty_at_cs.tum.edu)
Date: 2004-02-09 18:29:36
> Hmm, what is the RDY input then? Couldn't it be used for implementing
> wait states? If yes, why didn't Commodore use it for anything else than
> blocking the processor during DMA? On the C64 and C128, the RDY input
> can be affected by altering the -DMA input of the cartridge port.
Wasn't the problem with RDY that it needs up to 3 cycles to be
acknowledged, i.e. that write cycles can't be interrupted? Clock
stretching, in term, would work "just in time".
Rainer
Message was sent through the cbm-hackers mailing list
Archive generated by hypermail pre-2.1.8.