ia32e, er EM64T that is...
Bryan O'Sullivan
bos at serpentine.com
Tue Sep 7 05:44:47 UTC 2004
On Mon, 2004-09-06 at 13:47 -0400, Alan Cox wrote:
> em64t as Intel currently call it is pretty close to the x86-64 architecture
> so its not too bad a clone. It lacks prefetch/prefetchw which can also be
> used by some fancy user space stuff like image processors.
Er, EM64T provides the SSE prefetch{nta,t[012]} instructions, which are
somewhat more expressive than prefetch anyway, and which also run on AMD
chips. Shame about the lack of a prefetchw analogue, but it's hardly a
surprise that Intel isn't implementing 3dnow.
<b
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