 | >SHA1 unrolled : 2170 clocks / 512 bits
I might sound dumb but how do you guys count these 'clocks'? Are they
given by some sort of a tool that you've got or you just count them
manually looking at the ARM Datasheet?
But then there's a difference between N, S & I states, do you just
ignore it for simplicity?
I've got a highly optimised SHA-1 as well and I'm thinking of the way
to compare it with your results. The measured speed would be
meaningless as my device has slow memory (hence, my figures are worse
then yours significantly), the code size is irrelevant to me - the
function is completely unrolled. If you explain me about the 'clocks' -
this sounds as a descent comparison criterion.
Thanks.
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