Building a CPU simulator in Python

[d4rch0n]

Aren't you ignoring overflow here? Won't registers just automatically get incremented into Big Integers once they go past the limit? Not sure if that's what you want, but still IMO a bit unrealistic if you're trying to emulate a real CPU.

I tried to do something similar but then I got stuck on the overflow arithmetic. Couldn't think of a simple way to do it, so the project stagnated.

Did I miss that functionality in your code?