Reproduction micros

Liam Proven lproven at
Wed Jul 20 13:54:20 CDT 2016

On 20 July 2016 at 19:34, Cameron Kaiser <spectre at> wrote:
>> Also, RISC does not use, or need, microcode.
> I'm not sure what you mean by this, but (for example) many POWER
> implementations have microcode (example: the 970/G5, which is descended from
> POWER4).

Isn't the general belief that many successful architectures that
started out as RISC, and are still marketed as RISC, aren't actually
very RISC-like at all any more?

And, secondarily, that ARM is one of the ones that has stayed closest
to its roots, unlike, e.g., POWER, SPARC and, well, most of the big
hot UNIX workstation chips of the '90s?

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