Well, I seem to have the HW bug.

I could not let go of figuring out how to do the PZ1 in real HW, and have been working at solving the bank switching. I started sketching it with 74-chips (done), and now I am using the rather arcane program WinCUPL to design a solution with an Atmel atf750c-chip that solves the bank switching. It's not really powerful enough to be a CPLD, but a bit better than PAL/GAL.

WinCUPL is really bad at giving hints about what is wrong, so too much time has been spent on trying to get a syntactically correct description. I now have a description and simulation vectors that seem to do what I want. I am really tempted to order parts now, but I'll mull on it for a while first.

The only reason I chose the atf750c was because I've got a Dataman S4 programmer that supports the chip :)