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Re:MCPU emulator and ATTiny85 port by axarydax on Sunday September 06, 2020 @02:33PM (#24393547)
OP here

That's very cool! Never heard of LED-Transistor logic, and after reading the article I know why :).

I'd like to implement MCPU on an FPGA next weekend, so hope to have two implementations soon.

Re:MCPU emulator and ATTiny85 port by avmich on Sunday September 06, 2020 @05:04PM (#24394659)
In the project log, Tim mentions another implementation of MCPU, https://hackaday.io/project/7669-ed-64-a-discrete-8-bit-comp... .