Re: Clock Stretching...

From: Rainer Buchty (
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".


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