Minimal working implementation of a cpu at the transistor level. You can observe the inner workings of a cpu, bus, EEPROM lookup table, ALU, A and B registers, run and program mode, fetch decode execute cycle, clock frequency, simultaneously. You can write assembly and hand code it using a 4-bit memory address into 16 bytes of RAM.
debugging cpu clock assembly bus arithmetic-computation eeprom fetch-decode-execute von-neumann-architecture ttl-logic power-distribution 7400-series controlword
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Updated
Sep 26, 2026