1 #include <tommath.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, tomstdenis (at) gmail.com, http://math.libtomcrypt.com 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: /cvs/libtom/libtommath/bncore.c,v $ */ 35 /* $Revision: 1.4 $ */ 36 /* $Date: 2006/03/31 14:18:44 $ */ 37
