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I've been on a bender making FPGA computers using this $20 board:
https://tildegit.org/stack/Tugman
An experimental 18-bit stack machine CPU with UART with a WLIW-like quirky instruction architecture. Running forth on bare metal.
https://tildegit.org/stack/Tangnano9K-65c02-experiments
A 65c02 system with 48KB and UART
https://tildegit.org/stack/Tangnano9K-j1
James Bowman's J1 CPU with UART. Tugman above is based around this system, but is more advanced and takes up fewer resources.
Sep 05 · 3 months ago