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view bncore.c @ 1:22d5cf7d4b1a libtommath
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author | Matt Johnston <matt@ucc.asn.au> |
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date | Mon, 31 May 2004 18:23:46 +0000 |
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children | a96ff234ff19 |
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/* LibTomMath, multiple-precision integer library -- Tom St Denis * * LibTomMath is a library that provides multiple-precision * integer arithmetic as well as number theoretic functionality. * * The library was designed directly after the MPI library by * Michael Fromberger but has been written from scratch with * additional optimizations in place. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://math.libtomcrypt.org */ #include <tommath.h> /* Known optimal configurations CPU /Compiler /MUL CUTOFF/SQR CUTOFF ------------------------------------------------------------- Intel P4 /GCC v3.2 / 70/ 108 AMD Athlon XP /GCC v3.2 / 109/ 127 Intel Celeron /GCC v3.2.1 / 97/ 127 Mendocino 366mhz (evil) Intel P3 750mhz /GCC v3.2.1 / 95/ 110 Coppermine (mussel) Intel Celeron /GCC v3.2.1 / 85/ 125 Coppermine 700mhz Alpha /compaq / 54/ 87 Compaq C V6.4-014 on Compaq Tru64 UNIX V5.1A (Rev. 1885) AlphaServer 1000A 5/300 morwong Pentium classic 75 /GCC v3.2.1 / 73/ 127 plod */ /* configured for a AMD XP Thoroughbred core with etc/tune.c */ int KARATSUBA_MUL_CUTOFF = 109, /* Min. number of digits before Karatsuba multiplication is used. */ KARATSUBA_SQR_CUTOFF = 127, /* Min. number of digits before Karatsuba squaring is used. */ TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */ TOOM_SQR_CUTOFF = 400;