https://retropc-sim.blogspot.com/
RetroPC-SIM
A PC simulator for Arduino, simulate Registries (EAX,EBX,ECX,EDX and FLAGS), arithmetic operations and Perforated cards Reader Input.
sim
https://retropc.ru/wiki/%D0%97%D0%B0%D0%B3%D0%BB%D0%B0%D0%B2%D0%BD%D0%B0%D1%8F_%D1%81%D1%82%D1%80%D0%B0%D0%BD%D0%B8%D1%86%D0%B0
retropc.ru
ru