Re: Let's start a survey on our userbase

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

On Sun, 2025-09-21 at 06:10 +0000, WHR wrote:
> > On Sat, 2025-09-20 at 19:33 -0300, Leo Historias wrote:
> > > Baseline for PPC is G3,PPC64 is G5...unless i'm right...
> > 
> > No, the baseline for the ppc64 is not G5 but G5 without AltiVec.
> 
> That's POWER4.

You're probably right. I used that weird naming scheme as I was never
100% sure what the various baselines are. POWER is really complicated
with many different architecture baselines with and without AltiVec
and so on.

While one can be sure that any reasonably recent x86 CPU supports some
form of MMX or SSE, there are many even recent PowerPC CPUs that don't
support AltiVec.

I never really understood that design decision by IBM and Freescale.

Adrian

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