Last meeting of the Dutch Commodore Club (near Utrecht) we run out of PLA chips.
Searching the web I came across the website called hackup that used an existing opensource design to create a drop in replacement.
So I decided that I should build some, check them and use them to fix some C64 at the club (I normally can be found next to the repair corner, helping repairing).
This version of XCPLA is for the C64, but with other HDL code it should also work in other systems.
This weekend it will be Sinclair take over, so I will bring my zx81 to try to fix them.