Re: libcaps thread testing code committed

[David Leimbach <leimy2k@xxxxxxx>]

On Dec 8, 2003, at 10:33 AM, Sander Vesik wrote:

> Craig Dooley <cd5697@xxxxxxxxxx> wrote:
> > I dont think this will work. Anything before the pIII did not have 
> > SSE,
> > so PPro, PII, old Xeons are now useless?  Also, even the pIII only had
> > SSE, not SSE2, so there is no way to do double precision floating 
> > point
> > with just SSE.  Any Athlon before they went to XP I believe does not
> > have SSE, and I think there might also be no SSE2 in AMD Chips except
> > Athlon64 and maybe Barton.  I dont think this many CPU families can be
> > dropped.  They will have to be supported though.
>
> Worse, K8 is the first AMD processor that has SSE2, similarily several
> of the minority x86 processors don't have it. So this is basicly a bad
> idea.

Yeah... sometimes you actually do want double precision floating point 
to work :).

That's the problem with Altivec... even on the G5 it doesn't do double 
precision.  Luckilly
PowerPC has a pretty good floating point unit anyway.

> > -Craig
>
> --
> 	Sander
>
> +++ Out of cheese error +++