[coreboot] [PATCH] kconfig support for all GX1 boards

Peter Stuge peter at stuge.se
Mon Oct 5 02:31:54 CEST 2009

ron minnich wrote:
> BTW, what are the rules for MMX/SSE? IIRC MMX was in Ppro.

MMX was introduced on the Pentium. There was Pentium, then came
Pentium-MMX. It took a while, so Pentium Pro might have been there
before Pentium-MMX. My guess is that Pentium Pro did not have MMX.

SSE came in Pentium III.

> What supported CPUs can we assume support MMX and SSE? Can we go by
> socket type (likely on newer parts) or do we have to go by
> model/family?

The Pentiums are tricky with MMX, because the same board will run
just fine with Pentium and Pentium-MMX alike. So for Pentium boards
it's not really safe to assume there will ever be MMX.

The later models were slot 1 or socket 370. Could you put a standard
Pentium in a socket 370? I doubt it. Then it's safe to set MMX based
on socket.

What about Pentium III? IIRC you could put an FCPGA Pentium III in an
adapter that made it into a slot 1, and could run instead of a
Pentium II.. Can't rely on the socket there.


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