text: /* 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, tomstdenis@gmail.com
   */
  #include <tfm.h>
  
  /* b = a*a  */
  void fp_sqr(fp_int *A, fp_int *B)
  {
      int     y, old_used;
  
      old_used = B->used;
  
      /* call generic if we're out of range */
      if (A->used + A->used > FP_SIZE) {
         fp_sqr_comba(A, B);
         goto clean;
      }
  
      y = A->used;
  #if defined(TFM_SQR3) && FP_SIZE >= 6
          if (y <= 3) {
             fp_sqr_comba3(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR4) && FP_SIZE >= 8
          if (y == 4) {
             fp_sqr_comba4(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR6) && FP_SIZE >= 12
          if (y <= 6) {
             fp_sqr_comba6(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR7) && FP_SIZE >= 14
          if (y == 7) {
             fp_sqr_comba7(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR8) && FP_SIZE >= 16
          if (y == 8) {
             fp_sqr_comba8(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR9) && FP_SIZE >= 18
          if (y == 9) {
             fp_sqr_comba9(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR12) && FP_SIZE >= 24
          if (y <= 12) {
             fp_sqr_comba12(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR17) && FP_SIZE >= 34
          if (y <= 17) {
             fp_sqr_comba17(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SMALL_SET)
          if (y <= 16) {
             fp_sqr_comba_small(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR20) && FP_SIZE >= 40
          if (y <= 20) {
             fp_sqr_comba20(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR24) && FP_SIZE >= 48
          if (y <= 24) {
             fp_sqr_comba24(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR28) && FP_SIZE >= 56
          if (y <= 28) {
             fp_sqr_comba28(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR32) && FP_SIZE >= 64
          if (y <= 32) {
             fp_sqr_comba32(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR48) && FP_SIZE >= 96
          if (y <= 48) {
             fp_sqr_comba48(A,B);
             goto clean;
          }
  #endif
  #if defined(TFM_SQR64) && FP_SIZE >= 128
          if (y <= 64) {
             fp_sqr_comba64(A,B);
             goto clean;
          }
  #endif
         fp_sqr_comba(A, B);
  clean:
      for (y = B->used; y < old_used; y++) {
         B->dp[y] = 0;
      }
  }
  
  
  /* $Source: /cvs/libtom/tomsfastmath/src/sqr/fp_sqr.c,v $ */
  /* $Revision: 1.1 $ */
  /* $Date: 2006/12/31 21:25:53 $ */
  