Re: Cyrix M2

Joerg Pommnitz (
Thu, 24 Apr 1997 07:39:42 -0400

Mike Jagdis wrote:
> (Cyrix had to use FP registers for MMX to be at all compatible
> with Intel. I don't think they liked having to do it :-). Intel
> did it to save the cost of engineering their silicon to hold a
> few more registers.)

AFAIK the main reason was, not to break existing operating systems.
These OS don't know how to save MMX registers on task switchs. I
don't see how Cyrix would have solved this problem.

Joerg Pommnitz   || Never attribute to malloc 
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