760 	fe x1, x2, z2, x3, z3;  in curve25519_generic()  local
798 	fe_1(&z3);  in curve25519_generic()
817 		fe_cswap(&z2, &z3, swap);  in curve25519_generic()
826 		fe_sub(&tmp0l, &x3, &z3);  in curve25519_generic()
829 		fe_add(&z2l, &x3, &z3);  in curve25519_generic()
830 		fe_mul_tll(&z3, &tmp0l, &x2l);  in curve25519_generic()
834 		fe_add(&x3l, &z3, &z2);  in curve25519_generic()
835 		fe_sub(&z2l, &z3, &z2);  in curve25519_generic()
839 		fe_mul121666(&z3, &tmp1l);  in curve25519_generic()
841 		fe_add(&tmp0l, &tmp0, &z3);  in curve25519_generic()
842 		fe_mul_ttt(&z3, &x1, &z2);  in curve25519_generic()
849 	fe_cswap(&z2, &z3, swap);  in curve25519_generic()
859 	memzero_explicit(&z3, sizeof(z3));  in curve25519_generic()