>>> his aim isn't an ARM-native AROS anymore but AROS/m68k running on his Emu68
>> Sounds like a remarkably intense downgrade
> Downgrade? I wouldn't say downgrade as it allows a single
> application binary for MC68k, ARM32 and AAarch64 systems.
I guess he refers to the performance downgrade of running the entire OS through an m68k JIT compiler compared to the original plan of running the OS natively on ARM, which btw would have offered the single application binary feature as well thanks to the transparently running m68k JIT compiler that was supposed to be integrated into AROS/ARM.
As I understand from talking to Michal AAarch64 wouldn't allow for the emulator to work that way. So essentially the current design allows the stable ABI across all 3 branches vs only 2. I could be wrong though.