Messages in this thread | | | Date | Mon, 09 Nov 2009 13:17:08 -0800 | From | "H. Peter Anvin" <> | Subject | Re: i686 quirk for AMD Geode |
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On 11/09/2009 12:16 PM, Lennart Sorensen wrote: > > The Geode LX is what is being discussed which is in fact mostly a K6 as > far as I understand things. It seems to like i686 code, other than > apparently those NOP instructions. I wonder if the K6 has those noop > instructions and if not, perhaps gcc 4.4's -march=k6-3 would be the > right choice. I have always suspected the LX was really a K6-3 based > design (the cache sizes are a bit different, but clock speeds and > instruction sets seem to match). > > The Geode NX (which no one has mentioned yet) is an Athlon derived chip. >
*As far as I know* K6 didn't have NOPL, whereas K7 does.
Someone who has access to these chips could run that as an experiment.
-hpa
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