I made one of these about 18 years ago. It was a stack-based machine which meant I could get the instruction set under 32. I wrote a compiler for a little Forth

I made one of these about 18 years ago. It was a stack-based machine which meant I could get the instruction set under 32. I wrote a compiler for a little Forth-like language targeting its instruction set. I wanted to turn it into a fantasy console, but never wired up the graphical, sound, and input bits for that.