Atom 0.3.5 for CP/M
With Atom 0.3.5 you can write, assemble and run Z80 programs on a CP/M machine without leaving it. Try it in Triptych with an editor and a commented example or put it on your own system.
Tag: triptych - 2026
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Taking out the garbage
Skate reclaims list pairs that a running program can no longer reach. Its collector traces from live roots, keeps reachable pairs and returns the rest to the free list.
Room to run
Skate brings compiled Scheme to Z80/CP/M. Providing automatic memory management on a small machine means balancing runtime size, data capacity and processing time.
Scheme within limits
Skate’s design balances useful Scheme features against the memory and processing limits of Z80/CP/M. Some features remain central; others sit outside the scope of the first version.
A minimum viable Scheme
I’m building Skate, a Scheme compiler for the Z80 running CP/M. Examples from Structure and Interpretation of Computer Programs provide a test of how much we can retain while leaving enough memory to run useful programs.
Triptych, a retro computer in three parts
Triptych is a retro computer project using three ESP32 boards for CPU and storage, VGA video, and sound. The goal is a machine you can program directly, with a Z80 and CP/M at the centre of the current design.