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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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