Re: 6502/6510 ROM selection daughterboard

From: Michał Pleban <>
Date: Tue, 05 Jun 2012 17:28:55 +0200
Message-ID: <>

Bil Herd wrote:

> Does the community have the actual PLA terms as source for the various
> devices or are they all/mostly reverse engineered?

The only ones I found were for Commodore 500 - they are on the last page 
of schematics on Zimmers. I verified my equations and they appear to 
match. Apart from that, I never saw any equations directly from 
Commodore, only reverse engineered.


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Received on 2012-06-05 16:00:05

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