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Re: CPU flags?

From: Paul THOMAS
Subject: Re: CPU flags?
Date: Fri, 30 Jul 2004 22:07:03 +0200 (CEST)


Do you mean the values that -march and -mcpu-type can take on?  I have:

# CPU types supported in gcc-3.2 and higher: athlon-xp, athlon-mp, athlon-4,
# athlon-tbird, athlon, k6, k6-2, k6-3, i386, i486, i586 (Pentium), i686
# (PentiumPro), pentium, pentium-mmx, pentiumpro, pentium2 (Celeron), pentium3,
# and pentium4. ( from http://www.linuxquestions.org/questions/archive/40/2004/06/2/192003 )

Paul T

> Message du 30/07/04 03:29
> De : "Paul Kienzle"
> A : "octave maintainers mailing list"
> Copie à :
> Objet : CPU flags?
> Hi,
> Does anyone know the flags for determining if we are running on
> x86 architecture? To support 53-bit mantissa random number
> generation, we found we needed some x86 specific code
> in order to reduce the overhead from 2.4x to 1.6x the speed
> of the 31-bit mantissa code.
> Thanks,
> - Paul

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