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Re: 65c02 in Apple][
> > One of the problems is that the CFFA's firmware utilizes AUX
> > RAM, which does not exist in the Apple II or II+.
Maybe so, but the fact that it works, even if only for a couple of minutes indicates that AUX RAM is not the issue. If it utilized
AUX RAM it wouldn't work period, not have times when it works, others when it gives an I/O error.
>
> > Timing is also an issue, however, I feel that timing would
> > also be an issue in the 1 MHz IIe enhanced machine and it is
> > not.
>
> Why would you say that?
The issue is RAM access and the reason it doesn't happen on the IIe enhanced is the completely different structure for accessing RAM
and the fact that they use 4164's not 4116's. Custom IC's, reduced overall chip count and improved overall system in the IIe is the
difference.
Vince
--
Replica I
The Apple I clone
http://www.applefritter.com/apple1/members/replica1/index.htm