RPCEmu Apple Silicon build

I’ve built a new version of RPCEmu 0.9.3 for Apple Macs. The interpreter build is now a universal binary, which means it will run natively on both Intel and Apple Silicon (arm64) Macs. It can be downloaded here:

https://github.com/Septercius/rpcemu-dev/releases/tag/0.9.3b

The recompiler is not a universal binary, as arm64 is not a supported architecture for the dynamic code generation; if you run it on anything using Apple Silicon, it will still run under Rosetta 2. I did look at the recompiler code to see how viable it was to implement an arm64 version, but unfortunately that’s way beyond my capabilities.

Thank you for this, it is most welcome.

As tested on a M1 MacBook Air the native interpreter runs faster than the previous 0.9.3a under Rosetta2. The recompiler looks very slow, as seen by very slow screen redraws, but it benchmarks better than that might imply.

                    MIPs    romark    drystone
Previous 0.9.3a
interpreter/Intel    130    119000    312000

New 0.9.3b
interpreter/Native   184    195000    418000
recompiler/Intel     280    429000    914000

For comparison on an iMacPro
interpreter           80    110000    181000
recompiler           280   1393000   1001000

Thanks again.