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--HG-- branch : libtommath extra : convert_revision : 19ff91f614ebf6603fd4c1482036019ef1f0d501
44 lines
1.7 KiB
C
44 lines
1.7 KiB
C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
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*
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* LibTomMath is a library that provides multiple-precision
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* integer arithmetic as well as number theoretic functionality.
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*
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* The library was designed directly after the MPI library by
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* Michael Fromberger but has been written from scratch with
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* additional optimizations in place.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@iahu.ca, http://math.libtomcrypt.org
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*/
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#include <tommath.h>
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/* Known optimal configurations
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CPU /Compiler /MUL CUTOFF/SQR CUTOFF
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-------------------------------------------------------------
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Intel P4 /GCC v3.2 / 70/ 108
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AMD Athlon XP /GCC v3.2 / 109/ 127
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Intel Celeron /GCC v3.2.1 / 97/ 127
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Mendocino 366mhz (evil)
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Intel P3 750mhz /GCC v3.2.1 / 95/ 110
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Coppermine (mussel)
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Intel Celeron /GCC v3.2.1 / 85/ 125
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Coppermine 700mhz
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Alpha /compaq / 54/ 87
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Compaq C V6.4-014 on Compaq Tru64 UNIX V5.1A (Rev. 1885)
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AlphaServer 1000A 5/300
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morwong
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Pentium classic 75 /GCC v3.2.1 / 73/ 127
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plod
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*/
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/* configured for a AMD XP Thoroughbred core with etc/tune.c */
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int KARATSUBA_MUL_CUTOFF = 109, /* Min. number of digits before Karatsuba multiplication is used. */
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KARATSUBA_SQR_CUTOFF = 127, /* Min. number of digits before Karatsuba squaring is used. */
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TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */
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TOOM_SQR_CUTOFF = 400;
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