617     BIGNUM *n0, *n1, *n2, *n3, *n4, *n5, *n6;  in ec_GFp_simple_add()  local
638     n0 = BN_CTX_get(ctx);  in ec_GFp_simple_add()
663         if (!field_sqr(group, n0, b->Z, ctx))  in ec_GFp_simple_add()
665         if (!field_mul(group, n1, a->X, n0, ctx))  in ec_GFp_simple_add()
669         if (!field_mul(group, n0, n0, b->Z, ctx))  in ec_GFp_simple_add()
671         if (!field_mul(group, n2, a->Y, n0, ctx))  in ec_GFp_simple_add()
685         if (!field_sqr(group, n0, a->Z, ctx))  in ec_GFp_simple_add()
687         if (!field_mul(group, n3, b->X, n0, ctx))  in ec_GFp_simple_add()
691         if (!field_mul(group, n0, n0, a->Z, ctx))  in ec_GFp_simple_add()
693         if (!field_mul(group, n4, b->Y, n0, ctx))  in ec_GFp_simple_add()
736             if (!BN_copy(n0, b->Z))  in ec_GFp_simple_add()
739             if (!BN_copy(n0, a->Z))  in ec_GFp_simple_add()
742             if (!field_mul(group, n0, a->Z, b->Z, ctx))  in ec_GFp_simple_add()
745         if (!field_mul(group, r->Z, n0, n5, ctx))  in ec_GFp_simple_add()
752     if (!field_sqr(group, n0, n6, ctx))  in ec_GFp_simple_add()
758     if (!BN_mod_sub_quick(r->X, n0, n3, p))  in ec_GFp_simple_add()
763     if (!BN_mod_lshift1_quick(n0, r->X, p))  in ec_GFp_simple_add()
765     if (!BN_mod_sub_quick(n0, n3, n0, p))  in ec_GFp_simple_add()
770     if (!field_mul(group, n0, n0, n6, ctx))  in ec_GFp_simple_add()
776     if (!BN_mod_sub_quick(n0, n0, n1, p))  in ec_GFp_simple_add()
778     if (BN_is_odd(n0))  in ec_GFp_simple_add()
779         if (!BN_add(n0, n0, p))  in ec_GFp_simple_add()
782     if (!BN_rshift1(r->Y, n0))  in ec_GFp_simple_add()
802     BIGNUM *n0, *n1, *n2, *n3;  in ec_GFp_simple_dbl()  local
822     n0 = BN_CTX_get(ctx);  in ec_GFp_simple_dbl()
837         if (!field_sqr(group, n0, a->X, ctx))  in ec_GFp_simple_dbl()
839         if (!BN_mod_lshift1_quick(n1, n0, p))  in ec_GFp_simple_dbl()
841         if (!BN_mod_add_quick(n0, n0, n1, p))  in ec_GFp_simple_dbl()
843         if (!BN_mod_add_quick(n1, n0, group->a, p))  in ec_GFp_simple_dbl()
849         if (!BN_mod_add_quick(n0, a->X, n1, p))  in ec_GFp_simple_dbl()
853         if (!field_mul(group, n1, n0, n2, ctx))  in ec_GFp_simple_dbl()
855         if (!BN_mod_lshift1_quick(n0, n1, p))  in ec_GFp_simple_dbl()
857         if (!BN_mod_add_quick(n1, n0, n1, p))  in ec_GFp_simple_dbl()
864         if (!field_sqr(group, n0, a->X, ctx))  in ec_GFp_simple_dbl()
866         if (!BN_mod_lshift1_quick(n1, n0, p))  in ec_GFp_simple_dbl()
868         if (!BN_mod_add_quick(n0, n0, n1, p))  in ec_GFp_simple_dbl()
876         if (!BN_mod_add_quick(n1, n1, n0, p))  in ec_GFp_simple_dbl()
883         if (!BN_copy(n0, a->Y))  in ec_GFp_simple_dbl()
886         if (!field_mul(group, n0, a->Y, a->Z, ctx))  in ec_GFp_simple_dbl()
889     if (!BN_mod_lshift1_quick(r->Z, n0, p))  in ec_GFp_simple_dbl()
904     if (!BN_mod_lshift1_quick(n0, n2, p))  in ec_GFp_simple_dbl()
908     if (!BN_mod_sub_quick(r->X, r->X, n0, p))  in ec_GFp_simple_dbl()
913     if (!field_sqr(group, n0, n3, ctx))  in ec_GFp_simple_dbl()
915     if (!BN_mod_lshift_quick(n3, n0, 3, p))  in ec_GFp_simple_dbl()
920     if (!BN_mod_sub_quick(n0, n2, r->X, p))  in ec_GFp_simple_dbl()
922     if (!field_mul(group, n0, n1, n0, ctx))  in ec_GFp_simple_dbl()
924     if (!BN_mod_sub_quick(r->Y, n0, n3, p))  in ec_GFp_simple_dbl()