3 ms·
> I don't think we can even consider ARM to be a RISC, ARMv7 OK, is-it still true with ARMv8? It seems to be a much more 'reduced' ISA.
by renox 10y ago
> I don't think we can even consider ARM to be a RISC,
ARMv7 OK, is-it still true with ARMv8?
It seems to be a much more 'reduced' ISA.
- microcolonel 10y agoEvery ARMv8 is also an ARMv7; since ARMv8 includes AArch32 in addition to AArch64. It still has Jazelle traps. It also has an 8-byte (though they brag that they only have 4-byte opcodes now) AES round instruction, and a SHA-256 permutation instruction. Admittedly some of AArch64 is much cleaner, it involves fewer new conditional instructions than you would expect for an ARM architecture; however it sure as hell ain't RISC.