test("Add32 symmetric", Add32, a.y, a.x, a.c, a.z, a.cout)
		test("Sub32", Sub32, a.z, a.x, a.c, a.y, a.cout)
		test("Sub32 symmetric", Sub32, a.z, a.y, a.c, a.x, a.cout)
	}
}

func TestAddSubUint64(t *testing.T) {
	test := func(msg string, f func(x, y, c uint64) (z, cout uint64), x, y, c, z, cout uint64) {
		z1, cout1 := f(x, y, c)
		if z1 != z || cout1 != cout {