On Sun, 03 Apr 2005 13:55:39 +0200 Dag Arne Osvik <[email protected]> wrote: > > I've been working on a new DES implementation for Linux, and ran into > the problem of how to get access to C99 types like uint_fast32_t for > internal (not interface) use. In my tests, key setup on Athlon 64 slows > down by 40% when using u32 instead of uint_fast32_t. If you look in stdint.h you may find that uint_fast32_t is actually 64 bits on Athlon 64 ... so does it help if you use u64? -- Cheers, Stephen Rothwell [email protected] http://www.canb.auug.org.au/~sfr/
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