bn_sqr_normal
bn_sqr_normal(r, a, 4, t);
bn_sqr_normal(r, a, 8, t);
void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp);
bn_sqr_normal(rr->d, a->d, 8, t);
bn_sqr_normal(rr->d, a->d, al, t);
bn_sqr_normal(rr->d, a->d, al, tmp->d);
bn_sqr_normal(rr->d, a->d, al, tmp->d);
bn_sqr_normal(r, a, 4, t);
bn_sqr_normal(r, a, 8, t);
bn_sqr_normal(r, a, n2, t);
bn_sqr_normal(rr->d, a->d, 4, t);