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      1 /*	$NetBSD: bncore.c,v 1.2 2017/01/28 21:31:47 christos Exp $	*/
      2 
      3 #include <tommath.h>
      4 #ifdef BNCORE_C
      5 /* LibTomMath, multiple-precision integer library -- Tom St Denis
      6  *
      7  * LibTomMath is a library that provides multiple-precision
      8  * integer arithmetic as well as number theoretic functionality.
      9  *
     10  * The library was designed directly after the MPI library by
     11  * Michael Fromberger but has been written from scratch with
     12  * additional optimizations in place.
     13  *
     14  * The library is free for all purposes without any express
     15  * guarantee it works.
     16  *
     17  * Tom St Denis, tomstdenis (at) gmail.com, http://libtom.org
     18  */
     19 
     20 /* Known optimal configurations
     21 
     22  CPU                    /Compiler     /MUL CUTOFF/SQR CUTOFF
     23 -------------------------------------------------------------
     24  Intel P4 Northwood     /GCC v3.4.1   /        88/       128/LTM 0.32 ;-)
     25  AMD Athlon64           /GCC v3.4.4   /        80/       120/LTM 0.35
     26 
     27 */
     28 
     29 int     KARATSUBA_MUL_CUTOFF = 80,      /* Min. number of digits before Karatsuba multiplication is used. */
     30         KARATSUBA_SQR_CUTOFF = 120,     /* Min. number of digits before Karatsuba squaring is used. */
     31 
     32         TOOM_MUL_CUTOFF      = 350,      /* no optimal values of these are known yet so set em high */
     33         TOOM_SQR_CUTOFF      = 400;
     34 #endif
     35 
     36 /* Source: /cvs/libtom/libtommath/bncore.c,v  */
     37 /* Revision: 1.5  */
     38 /* Date: 2006/12/28 01:25:13  */
     39