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To: gentoo-alpha@g.o
From: kloeri@g.o
Subject: Re: ev6, ev67 or ev68?
Date: Mon, 19 Sep 2005 21:35:17 +0200
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.
> 
> Thanks
> 
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.

Regards,
Bryan Ƙstergaard
-- 
gentoo-alpha@g.o mailing list


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ev6, ev67 or ev68?
-- Davide Cittaro
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Updated Jun 17, 2009

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