List Archive: gentoo-alpha
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On Mon, Sep 19, 2005 at 08:38:04PM +0200, Davide Cittaro wrote:
> On a DS25, with ev68 CPU, I cannot set -mcpu=ev68 as CFLAGS, because
> that option is not supported. Should I set it to ev6 or to ev67 then?
> Which is the main difference in that?
> If I set no -mcpu option I have problems since the g++ compiler seems
> to work not properly.
Using -mcpu=ev67 is fine. ev68 doesn't support any new instructions
afaik and scheduling is similar as well. If you decide to use -mcpu=ev6
you're going to miss the CIX instruction set and probably suffer
(somewhat) lower performance.
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