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comparison 3rdparty/libtommath/bncore.c @ 0:2cf249471370

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author Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Tue, 08 May 2018 16:09:12 +0900
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-1:000000000000 0:2cf249471370
1 #include <tommath_private.h>
2 #ifdef BNCORE_C
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
4 *
5 * LibTomMath is a library that provides multiple-precision
6 * integer arithmetic as well as number theoretic functionality.
7 *
8 * The library was designed directly after the MPI library by
9 * Michael Fromberger but has been written from scratch with
10 * additional optimizations in place.
11 *
12 * The library is free for all purposes without any express
13 * guarantee it works.
14 *
15 * Tom St Denis, tstdenis82@gmail.com, http://libtom.org
16 */
17
18 /* Known optimal configurations
19
20 CPU /Compiler /MUL CUTOFF/SQR CUTOFF
21 -------------------------------------------------------------
22 Intel P4 Northwood /GCC v3.4.1 / 88/ 128/LTM 0.32 ;-)
23 AMD Athlon64 /GCC v3.4.4 / 80/ 120/LTM 0.35
24
25 */
26
27 int KARATSUBA_MUL_CUTOFF = 80, /* Min. number of digits before Karatsuba multiplication is used. */
28 KARATSUBA_SQR_CUTOFF = 120, /* Min. number of digits before Karatsuba squaring is used. */
29
30 TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */
31 TOOM_SQR_CUTOFF = 400;
32 #endif
33
34 /* $Source$ */
35 /* $Revision$ */
36 /* $Date$ */