Nice find, ChuckT. He mentions the Micro-professor MPF-1... I remember those from when I was 16 or so (only a few years ago - honest!
) and yes his project does look similar.
I bought an MPF-1 off of eBay last year for the nostalgia, although I was thinking of learning a bit of Z80... but then got sucked in by my 6502 project again
.
But, back to the article: It does look good, although I wonder why he stuck to just 1MHz? I'd have thought he'd have been able to run it much higher.
I'm quite interested in his PLD (GAL) decoder program as that is something I'm trying to learn myself at the moment.