MOVF	R1, F2             // ERROR "illegal combination"
	MOVD	R1, F2             // ERROR "illegal combination"
	MOVF	R1, R1             // ERROR "illegal combination"
	MOVD	R1, R2             // ERROR "illegal combination"
	MOVFW	R1, R2             // ERROR "illegal combination"
	MOVDW	R1, R2             // ERROR "illegal combination"
	MOVWF	R1, R2             // ERROR "illegal combination"

	AND	$-2, R1               // a517fffe
	AND	$-65536, R1           // c01bffff0000
	AND	$1, R1                // c0a100000001b980001a
	ANDW	R1, R2                // 1421
	ANDW	R1, R2, R3            // b9f42031
	ANDW	$1, R1                // c01b00000001
	ANDW	$131071, R1           // a5160001
	ANDW	$65536, R1            // c01b00010000
	ANDW	$-2, R1               // a517fffe
	OR	R1, R2                // b9810021

    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // #7
    }
    assertEvents(
        "R0.00, R1.38, R1.13, R0.88, R0.63, R0.50, R0.50, R0.50", // #1
        "U0.50", // #2
        "U4.00", // #3
        "R0.00, R1.38, R1.13, R0.88, R0.63, R0.50, R0.50, R0.50", // #4
        "U0.50", // #5
        "U2.00", // #6

    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // #7
    }
    assertEvents(
        "R0.00, R1.38, R1.13, R0.88, R0.63, R0.50, R0.50, R0.50", // #1
        "U0.50", // #2
        "U4.00", // #3
        "R0.00, R1.38, R1.13, R0.88, R0.63, R0.50, R0.50, R0.50", // #4
        "U0.50", // #5
        "U2.00", // #6

        MavenArtifactRepositorySubclass r1 = new MavenArtifactRepositorySubclass("foo");
        MavenArtifactRepositorySubclass r2 = new MavenArtifactRepositorySubclass("foo");
        MavenArtifactRepositorySubclass r3 = new MavenArtifactRepositorySubclass("bar");

        assertTrue(r1.hashCode() == r2.hashCode());
        assertFalse(r1.hashCode() == r3.hashCode());

        assertTrue(r1.equals(r2));
        assertTrue(r2.equals(r1));

// including forms involving multiple registers such as R1:R2.
func (p *Parser) register(name string, prefix rune) (r1, r2 int16, scale int8, ok bool) {
	// R1 or R(1) R1:R2 R1,R2 R1+R2, or R1*scale.
	r1, ok = p.registerReference(name)
	if !ok {
		return
	}
	if prefix != 0 && prefix != '*' { // *AX is OK.

    private static boolean repositoryEquals(RemoteRepository r1, RemoteRepository r2) {
        if (r1 == r2) {
            return true;
        }

        return Objects.equals(r1.getId(), r2.getId())
                && Objects.equals(r1.getUrl(), r2.getUrl())
                && policyEquals(r1.getPolicy(false), r2.getPolicy(false))
                && policyEquals(r1.getPolicy(true), r2.getPolicy(true));
    }

    private static boolean repositoryEquals(ArtifactRepository r1, ArtifactRepository r2) {
        if (r1 == r2) {
            return true;
        }

        return Objects.equals(r1.getId(), r2.getId())
                && Objects.equals(r1.getUrl(), r2.getUrl())
                && repositoryPolicyEquals(r1.getReleases(), r2.getReleases())
                && repositoryPolicyEquals(r1.getSnapshots(), r2.getSnapshots());
    }

	MOVFL CR3, CR1                  // 4c8c0000

	MOVW CR0, R1                    // 7c380026
	MOVW CR7, R1                    // 7c301026
	MOVW CR, R1                     // 7c200026

	MOVW R1, CR                     // 7c2ff120
	MOVFL R1, CR                    // 7c2ff120
	MOVW R1, CR2                    // 7c320120
	MOVFL R1, CR2                   // 7c320120
	MOVFL R1, $255                  // 7c2ff120

        List<Restriction> r1 = this.restrictions;
        List<Restriction> r2 = restriction.restrictions;
        List<Restriction> restrictions;

        if (r1.isEmpty() || r2.isEmpty()) {
            restrictions = Collections.emptyList();
        } else {
            restrictions = Collections.unmodifiableList(intersection(r1, r2));
        }

        ArtifactVersion version = null;