This is what I miss about the Red Power mod for Minecraft. I wonder if GregTech would see the fun in adding some sort of CPU that wouldn't be the worst emulation stacked inside of hand written 'machine' op functions...
Offhand, anyone know of any good (either long stable, or better, well maintained and likely to persist) CPU emulators for Java? Something that does 'web assembly' might fit the task if it's reasonable to transpile a fake binary format into real WASM.
The first good search result I got was : https://github.com/dylibso/chicory : better than wasmer-java for this use case since it doesn't depend on native binaries.
Relating this back to the topic. It would be interesting to have to, at least copy in someone else's if not, write your own Forth interpreter to help bootstrap computers.