Since there's no compiler that can do this for you (there isn't one for MMX
yet)  you'll have to hard code in assembler. Aside from being a heluva lot
of work this will benefit just a small percentage of users (PC, K6-2 users).
Also, 3DNow instructions are 32-bit float (though they use 64-bit registers)
and that can  cause to a) losing precision and b) differences in the image
produced on a non-K6-2, like it was with the pseudo-random bug in POV 2.0 .

So the answer to your question is, imho, "no". Well, it will run faster on a
K6-2/300 than on a K6/300 due to the former's better architecture, but will
run even faster on a PII/300 and afaik it costs roughly as much as a K6-2
(but you'll need a new mb).

Peter

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