x86_64?

[rice7th]

As the title says: x86_64 or realistically ANY 64 bit architecture (like PPC64, Arm64 etc.)

[davidgiven]

Sure, it'd be easy! It just needs someone to do it! (Also to fix any issues caused by the toolchain not being designed for 64-bit ints.)

I am working on a more modern code generator that should make porting to modern architectures rather easier, BTW, so there's a possibility this may actually happen.