| #include <tommath.h> |
| #ifdef BNCORE_C |
| /* LibTomMath, multiple-precision integer library -- Tom St Denis |
| * |
| * LibTomMath is a library that provides multiple-precision |
| * integer arithmetic as well as number theoretic functionality. |
| * |
| * The library was designed directly after the MPI library by |
| * Michael Fromberger but has been written from scratch with |
| * additional optimizations in place. |
| * |
| * The library is free for all purposes without any express |
| * guarantee it works. |
| * |
| * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com |
| */ |
| |
| /* Known optimal configurations |
| |
| CPU /Compiler /MUL CUTOFF/SQR CUTOFF |
| ------------------------------------------------------------- |
| Intel P4 Northwood /GCC v3.4.1 / 88/ 128/LTM 0.32 ;-) |
| AMD Athlon64 /GCC v3.4.4 / 80/ 120/LTM 0.35 |
| |
| */ |
| |
| int KARATSUBA_MUL_CUTOFF = 80, /* Min. number of digits before Karatsuba multiplication is used. */ |
| KARATSUBA_SQR_CUTOFF = 120, /* Min. number of digits before Karatsuba squaring is used. */ |
| |
| TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */ |
| TOOM_SQR_CUTOFF = 400; |
| #endif |
| |
| /* $Source: /cvs/libtom/libtommath/bncore.c,v $ */ |
| /* $Revision: 1.4 $ */ |
| /* $Date: 2006/03/31 14:18:44 $ */ |
