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Renaming branch
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:23:46 +0000
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-1:000000000000 1:22d5cf7d4b1a
1 /* LibTomMath, multiple-precision integer library -- Tom St Denis
2 *
3 * LibTomMath is a library that provides multiple-precision
4 * integer arithmetic as well as number theoretic functionality.
5 *
6 * The library was designed directly after the MPI library by
7 * Michael Fromberger but has been written from scratch with
8 * additional optimizations in place.
9 *
10 * The library is free for all purposes without any express
11 * guarantee it works.
12 *
13 * Tom St Denis, [email protected], http://math.libtomcrypt.org
14 */
15 #include <tommath.h>
16
17 /* Known optimal configurations
18
19 CPU /Compiler /MUL CUTOFF/SQR CUTOFF
20 -------------------------------------------------------------
21 Intel P4 /GCC v3.2 / 70/ 108
22 AMD Athlon XP /GCC v3.2 / 109/ 127
23 Intel Celeron /GCC v3.2.1 / 97/ 127
24 Mendocino 366mhz (evil)
25 Intel P3 750mhz /GCC v3.2.1 / 95/ 110
26 Coppermine (mussel)
27 Intel Celeron /GCC v3.2.1 / 85/ 125
28 Coppermine 700mhz
29 Alpha /compaq / 54/ 87
30 Compaq C V6.4-014 on Compaq Tru64 UNIX V5.1A (Rev. 1885)
31 AlphaServer 1000A 5/300
32 morwong
33 Pentium classic 75 /GCC v3.2.1 / 73/ 127
34 plod
35
36 */
37
38 /* configured for a AMD XP Thoroughbred core with etc/tune.c */
39 int KARATSUBA_MUL_CUTOFF = 109, /* Min. number of digits before Karatsuba multiplication is used. */
40 KARATSUBA_SQR_CUTOFF = 127, /* Min. number of digits before Karatsuba squaring is used. */
41
42 TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */
43 TOOM_SQR_CUTOFF = 400;