Paul Crowley wrote, On 24/8/08 1:00 AM:
http://www.ddj.com/hpc-high-performance-computing/201803067
[...] However, glancing through the SSE5 specification, I
can't see at all how such a dramatic speedup might be achieved
A commenter on slashdot hinted at the vector permutation instructions,
similar to those on Altivec, being useful:
http://developers.slashdot.org/comments.pl?sid=284695&cid=20423869
Altivec is also known as VMX
http://en.wikipedia.org/wiki/AltiVec
That led me to this paper with a section on use of VMX vector operations
in an AES implementation:
http://diploma-thesis.siewior.net/html/diplomarbeitch3.html
I didn't see performance comparisons or anything specific to SSE5, but
it looks like the kind of thing that AMD might have meant.
-- Sidney Markowitz
http://www.sidney.com
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