Posted By
JamesD
on 2016-09-21
20:43:16
|  Re: What would I do differently in the Plus/4
As long as the TED doesn't have to access RAM, it can chug along at normal speed and you can drive the CPU at a different speed.
The one question I have here, is what speed were 64Kx4 RAMs?
As long as they are fast enough, you should be ok.
In theory, you only need to slow the CPU down when the TED accesses the RAM/ROM buss.
I think you'd need to use some buss isolation to retrofit the machine with a higher clock, and you have to sync between the TED clock and the CPU.
*edit*
And you'd need to slow the CPU down to access the TED.
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