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| 1 | #include <tommath.h> |
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| 2 | #ifdef BNCORE_C |
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| 3 | /* LibTomMath, multiple-precision integer library -- Tom St Denis |
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| 4 | * |
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| 5 | * LibTomMath is a library that provides multiple-precision |
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| 6 | * integer arithmetic as well as number theoretic functionality. |
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| 7 | * |
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| 8 | * The library was designed directly after the MPI library by |
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| 9 | * Michael Fromberger but has been written from scratch with |
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| 10 | * additional optimizations in place. |
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| 11 | * |
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| 12 | * The library is free for all purposes without any express |
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| 13 | * guarantee it works. |
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| 14 | * |
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| 15 | * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com |
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| 16 | */ |
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| 17 | |
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| 18 | /* Known optimal configurations |
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| 19 | |
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| 20 | CPU /Compiler /MUL CUTOFF/SQR CUTOFF |
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| 21 | ------------------------------------------------------------- |
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| 22 | Intel P4 Northwood /GCC v3.4.1 / 88/ 128/LTM 0.32 ;-) |
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| 23 | AMD Athlon64 /GCC v3.4.4 / 80/ 120/LTM 0.35 |
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| 24 | |
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| 25 | */ |
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| 26 | |
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| 27 | int KARATSUBA_MUL_CUTOFF = 80, /* Min. number of digits before Karatsuba multiplication is used. */ |
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| 28 | KARATSUBA_SQR_CUTOFF = 120, /* Min. number of digits before Karatsuba squaring is used. */ |
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| 29 | |
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| 30 | TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */ |
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| 31 | TOOM_SQR_CUTOFF = 400; |
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| 32 | #endif |
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| 33 | |
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| 34 | /* $Source: /cvsroot/tcl/libtommath/bncore.c,v $ */ |
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| 35 | /* $Revision: 1.3 $ */ |
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| 36 | /* $Date: 2006/12/01 19:45:38 $ */ |
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