Re: PET 2001 fix Part 3 - RAM/ROM board etc.

From: André Fachat <>
Date: Sat, 21 May 2011 00:09:46 +0200
Message-ID: <>
> Excellent analysis!

Thanks, that was a tricky one. I missed the important point only until I realized that the 74100 actually does NOT store the lowest two bits because it handles the upper 8 bits and not the lowest 8 bits of the 10 bit video memory address.

I only hope it helps. I'm looking forward to the 'scope analysis.


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Received on 2011-05-20 23:00:07

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