view tomsfastmath/src/sqr/fp_sqr.c @ 643:a362b62d38b2 dropbear-tfm

Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a with Makefile.in renamed
author Matt Johnston <matt@ucc.asn.au>
date Wed, 23 Nov 2011 18:10:20 +0700
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/* TomsFastMath, a fast ISO C bignum library.
 * 
 * This project is meant to fill in where LibTomMath
 * falls short.  That is speed ;-)
 *
 * This project is public domain and free for all purposes.
 * 
 * Tom St Denis, [email protected]
 */
#include <tfm.h>

/* b = a*a  */
void fp_sqr(fp_int *A, fp_int *B)
{
    int     y;

    /* call generic if we're out of range */
    if (A->used + A->used > FP_SIZE) {
       fp_sqr_comba(A, B);
       return ;
    }

    y = A->used;
#if defined(TFM_SQR3)
        if (y <= 3) {
           fp_sqr_comba3(A,B);
           return;
        }
#endif
#if defined(TFM_SQR4)
        if (y == 4) {
           fp_sqr_comba4(A,B);
           return;
        }
#endif
#if defined(TFM_SQR6)
        if (y <= 6) {
           fp_sqr_comba6(A,B);
           return;
        }
#endif
#if defined(TFM_SQR7)
        if (y == 7) {
           fp_sqr_comba7(A,B);
           return;
        }
#endif
#if defined(TFM_SQR8)
        if (y == 8) {
           fp_sqr_comba8(A,B);
           return;
        }
#endif
#if defined(TFM_SQR9)
        if (y == 9) {
           fp_sqr_comba9(A,B);
           return;
        }
#endif
#if defined(TFM_SQR12)
        if (y <= 12) {
           fp_sqr_comba12(A,B);
           return;
        }
#endif
#if defined(TFM_SQR17)
        if (y <= 17) {
           fp_sqr_comba17(A,B);
           return;
        }
#endif
#if defined(TFM_SMALL_SET)
        if (y <= 16) {
           fp_sqr_comba_small(A,B);
           return;
        }
#endif
#if defined(TFM_SQR20)
        if (y <= 20) {
           fp_sqr_comba20(A,B);
           return;
        }
#endif
#if defined(TFM_SQR24)
        if (y <= 24) {
           fp_sqr_comba24(A,B);
           return;
        }
#endif
#if defined(TFM_SQR28)
        if (y <= 28) {
           fp_sqr_comba28(A,B);
           return;
        }
#endif
#if defined(TFM_SQR32)
        if (y <= 32) {
           fp_sqr_comba32(A,B);
           return;
        }
#endif
#if defined(TFM_SQR48)
        if (y <= 48) {
           fp_sqr_comba48(A,B);
           return;
        }
#endif
#if defined(TFM_SQR64)
        if (y <= 64) {
           fp_sqr_comba64(A,B);
           return;
        }
#endif
       fp_sqr_comba(A, B);
}


/* $Source$ */
/* $Revision$ */
/* $Date$ */