tommath/pre_gen/mpi.c

414 int fast_s_mp_mul_digs (mp_int * a, mp_int * b, mp_int * c, int digs)
421   if (c->alloc < digs) {
422     if ((res = mp_grow (c, digs)) != MP_OKAY) {
428   pa = MIN(digs, a->used + b->used);
510  * output digits *above* digs.  See the comments for fast_s_mul_digs
518 int fast_s_mp_mul_high_digs (mp_int * a, mp_int * b, mp_int * c, int digs)
535   for (ix = digs; ix < pa; ix++) {
571     tmpc = c->dp + digs;
572     for (ix = digs; ix < pa; ix++) {
4757   int     ix, res, digs;
4766   digs = n->used * 2 + 1;
4767   if ((digs < MP_WARRAY) &&
4774   if (x->alloc < digs) {
4775     if ((res = mp_grow (x, digs)) != MP_OKAY) {
4779   x->used = digs;
4963     int     digs = a->used + b->used + 1;
4966     if ((digs < MP_WARRAY) &&
4969       res = fast_s_mp_mul_digs (a, b, c, digs);
6220   int     res, digs;
6242   /* digs is the digit count */
6243   digs = 0;
6247     ++digs;
6264     ++digs;
6268   /* return digs + 1, the 1 is for the NULL byte that would be required. */
6269   *size = digs + 1;
8369   int     res, digs;
8397   digs = 0;
8404     ++digs;
8410   bn_reverse ((unsigned char *)_s, digs);
8451   int     res, digs;
8485   digs = 0;
8496     ++digs;
8502   bn_reverse ((unsigned char *)_s, digs);
9141 /* multiplies |a| * |b| and only computes upto digs digits of result
9145 int s_mp_mul_digs (mp_int * a, mp_int * b, mp_int * c, int digs)
9154   if (((digs) < MP_WARRAY) &&
9157     return fast_s_mp_mul_digs (a, b, c, digs);
9160   if ((res = mp_init_size (&t, digs)) != MP_OKAY) {
9163   t.used = digs;
9171     /* limit ourselves to making digs digits of output */
9172     pb = MIN (b->used, digs - ix);
9197     /* set carry if it is placed below digs */
9198     if (ix + iy < digs) {
9235 /* multiplies |a| * |b| and does not compute the lower digs digits
9239 s_mp_mul_high_digs (mp_int * a, mp_int * b, mp_int * c, int digs)
9251     return fast_s_mp_mul_high_digs (a, b, c, digs);
9270     tmpt = &(t.dp[digs]);
9273     tmpy = b->dp + (digs - ix);
9275     for (iy = digs - ix; iy < pb; iy++) {