RE: PLA replacement for C64

Hallo Jim,


> I did not use the shadowfall project, but created my own and used the equations in RealPLA 

If it isn't the final product yet, I'll take the liberty to suggest an idea. Several of my projects use the mirrored areas now occupied by the VIC, SID and the CIAs. I cut the original lines and inserted various gates to decode everything. 
My idea is to tell the CPLD to de-mirror the various areas, or not, using a jumper. The next thing to do is to reserve some free pins of the CPLD for outputting the various free areas. You have to add some solderpads (or whatever suits you) to make the pins available to the user. (I assume that the CPLD has enough free pins)


With kind regards / met vriendelijke groet, Ruud Baltissen
www.Baltissen.org





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