Re: PLA equations

From: Nicolas Welte (
Date: 2003-06-09 11:28:55

Marko Mäkelä wrote:
> BTW, Jens Schönfeld provided me with some PLA equations.  I verified
> them against the already archived copies, and also against the
> 64-kilobyte truth table dumps he sent me.  There are three additions:
> 1551, CBM II high profile (a.k.a. CBM 700 series), and P500 (not
> decoded yet).  I have yet to check the 8296 equations made by André Fachat
> against the truth table dumps made by Jens.

That's good news. Now if he only would send back my PLA chips ;)

BTW, because Jens told me that he does not yet have replacement PLAs for the 
8296, I decided to put Andre's equations into a GAL and make an adaptor 
socket for it. It works nicely, but only the "small" 82S100 PLA can be 
replaced with a GAL and some tricks are needed (feedback) to squeeze it in. 
Since only the small PLA was broken in my board this was fine for me.


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