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Subject: Question: SIMD extensions on IA32 processors (and WindowsXP)

Author: Daniel Mehrmannn

Date: 03:06:22 01/03/04


Hello all,

i have, for some experts, a stupid questions. I'm playing a little bit with SIMD
extensions on my AthlonXP. I wanna use some mmx (testing sse/sse2) comands for
my chessengine.

I know linux support that new extensions above 2.4.18 so far (see /proc/cpuinfo
flags). But what about WindowsXP ? I don't find the right websites at the
moment.

Of course everybody knows that we can use only this extenions if the OS support
this. The taskmanager save/set the register which the processes used (task
switching).

Who tested the automatic intrinsics vector function/support of icc and gcc ? Is
it  good to use this or should this code write as asm inline code ? I'm a
beginner with asm, so ut would be better if i could use the support of compiler
;)

I know that the icc have, i know only 7.0, problems with intrinsics vectors
because it only used this on sharps with a same datastream (e.g. for(....)).

thanks
daniel





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