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mrlonglong 3 days ago

Is this truly a 64 bit processor?

johnklos 3 days ago | parent [-]

No, it isn't 64 bit at all. It claims to have 64 bit vector extensions, but that's worlds different from being a 64 bit processor.

It's mostly marketing fluff. The people who made Apollo claimed for ages that FPUs necessary, then finally provided an FPU. They want people to target their proprietary extensions, but they don't even offer an MMU and emphatically claim, just like with the FPU, that it's not necessary. They spin way too much.

I can't take them seriously. There are plenty of other projects that are much more interesting, like:

https://www.buffee.ca/back-to-fulltime/

https://github.com/captain-amygdala/pistorm

They allow for much more flexibility, the option to run on actual m68k motherboards and compatible extensions, such as an '060 emulation that includes support for instructions the '060 would otherwise need to emulate.

mrlonglong 2 days ago | parent [-]

It would be an interesting exercise to design a 64 bit processor that extends the 680x0 ISA and compare it against today's offerings in a similar node.