Just catching up on old mail...

Jason R Thorpe wrote:
> On Sun, Nov 19, 2000 at 06:17:23PM -0800, Matt Thomas wrote:
> 
>  > i386 has MMX
> 
> ...this is overlapped with FP regs on the i386.

Now i386 has SSE/SSE2 registers (xmm0-xmm7), at least on the Pentium III
and Pentium 4.  These are _not_ overlapped with the FP registers and must
be saved using FXSAVE and FXRSTOR.  I don't know about Athlon and 3D-Now!,
tho.

Later.

-- 
Colin Wood                                 cwood@ichips.intel.com
Component Design Engineer - DPG                 Intel Corporation
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I speak only on my own behalf, not for my employer.