[XviD-devel] SSE2 on AMD64

Jan Lucas jan at lucas-berlin.de
Mon May 9 17:17:15 CEST 2005


Mark L schrieb:
> Intel also has their own 64-bit part to rival AMDs. The same extra
> SSE registers exist in 64-bit mode. They basically reverse engineered
> and AMD64 part to make sure it was compatible.  To make things
> confusing they are calling their support EM64T.  But most people in
> the know call it AMD64 compatible.

Well, they didn't really have to reverse engineer it cause AMD had
published the instruction set for ages and they had a patent exchange
agreement where (among other patents) Intel received the rights to use
AMD64 and AMD received the rights to use SSE2 or 3, I'm not sure whichone.

					Jan


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