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