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SubjectRe: Cyrix M2
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 |Joerg@Raleigh.ibm.com| Never attribute to malloc
Mobile/Wireless |Dept UMRA | that which can be adequately
T/L (919)254-6397|Office B502/E117 | explained by stupidity.

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