if want, got := uint8(i)%uint8(sixU) == 0, div6_uint8(uint8(i)); got != want {
				t.Errorf("div6_uint8(%d) = %v want %v", i, got, want)
			}
			if want, got := uint8(i)%uint8(nineteenU) == 0, div19_uint8(uint8(i)); got != want {
				t.Errorf("div6_uint19(%d) = %v want %v", i, got, want)
			}
		}
		if want, got := uint16(i)%uint16(sixU) == 0, div6_uint16(uint16(i)); got != want {

		}
		if got := sub_uint8_ssa(v.a, v.b); got != v.sub {
			t.Errorf("sub_uint8 %d-%d = %d, wanted %d\n", v.a, v.b, got, v.sub)
		}
		if v.b != 0 {
			if got := div_uint8_ssa(v.a, v.b); got != v.div {
				t.Errorf("div_uint8 %d/%d = %d, wanted %d\n", v.a, v.b, got, v.div)
			}

		}
		if v.b != 0 {
			if got := mod_uint8_ssa(v.a, v.b); got != v.mod {
				t.Errorf("mod_uint8 %d%%%d = %d, wanted %d\n", v.a, v.b, got, v.mod)
			}

	test_uint8{fn: div_0_uint8, fnname: "div_0_uint8", in: 1, want: 0},
	test_uint8{fn: div_0_uint8, fnname: "div_0_uint8", in: 255, want: 0},
	test_uint8{fn: div_uint8_1, fnname: "div_uint8_1", in: 0, want: 0},
	test_uint8{fn: div_1_uint8, fnname: "div_1_uint8", in: 1, want: 1},
	test_uint8{fn: div_uint8_1, fnname: "div_uint8_1", in: 1, want: 1},
	test_uint8{fn: div_1_uint8, fnname: "div_1_uint8", in: 255, want: 0},