MOVB	R1, 0x1000000(R2)	// MOVB		R1, 16777216(R2)
	MOVB	R1, 0x44332211(R2)	// MOVB		R1, 1144201745(R2)
	MOVH	R1, 0x1001000(R2)	// MOVH		R1, 16781312(R2)
	MOVH	R1, 0x44332211(R2)	// MOVH		R1, 1144201745(R2)
	MOVW	R1, 0x1003000(R2)	// MOVW		R1, 16789504(R2)
	MOVW	R1, 0x44332211(R2)	// MOVW		R1, 1144201745(R2)
	MOVD	R1, 0x1007000(R2)	// MOVD		R1, 16805888(R2)
	MOVD	R1, 0x44332211(R2)	// MOVD		R1, 1144201745(R2)

	BIC R12@>13, R12, R19                      // 9335ec8a
	BICSW R25->20, R3, R20                     // 7450b96a
	BICS R19->12, R1, R23                      // 3730b3ea
	BICS R19, R1, R23                          // 370033ea
	BICS R19>>0, R1, R23                       // 370073ea
	CALL -1(PC)                                // ffffff97
	CALL (R15)                                 // e0013fd6

// 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.

	FLDPQ	(R0), (R1, R2)                                   // ERROR "invalid register pair"
	FLDPQ	(R1), (F2, F2)                                   // ERROR "constrained unpredictable behavior"
	FSTPQ	(R1, R2), (R0)                                   // ERROR "invalid register pair"
	FLDPD	(R0), (R1, R2)                                   // ERROR "invalid register pair"

   * }
   */
  public final <R1 extends R> Invokable<T, R1> returning(Class<R1> returnType) {
    return returning(TypeToken.of(returnType));
  }

  /** Explicitly specifies the return type of this {@code Invokable}. */
  public final <R1 extends R> Invokable<T, R1> returning(TypeToken<R1> returnType) {
    checkArgument(
        returnType.isSupertypeOf(getReturnType()),

			if arch.IsARMMULA(op) {
				// All must be registers.
				p.getRegister(prog, op, &a[0])
				r1 := p.getRegister(prog, op, &a[1])
				r2 := p.getRegister(prog, op, &a[2])
				p.getRegister(prog, op, &a[3])
				prog.From = a[0]
				prog.To = a[3]
				prog.To.Type = obj.TYPE_REGREG2
				prog.To.Offset = int64(r2)
				prog.Reg = r1
				break
			}
		}
		if p.arch.Family == sys.AMD64 {
			prog.From = a[0]

    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

	const haveFastIndex = bytealg.MaxBruteForce > 0
	switch {
	case 0 <= r && r < utf8.RuneSelf:
		return IndexByte(s, byte(r))
	case r == utf8.RuneError:
		for i := 0; i < len(s); {
			r1, n := utf8.DecodeRune(s[i:])
			if r1 == utf8.RuneError {
				return i
			}
			i += n
		}
		return -1
	case !utf8.ValidRune(r):
		return -1
	default:
		// Search for rune r using the last byte of its UTF-8 encoded form.

*   Updated docs for `tf.keras`: New Keras-based
    [get started](http://tensorflow.org/versions/r1.9/get_started), and
    [programmers guide page](http://tensorflow.org/versions/r1.9/programmers_guide/keras).
*   Update `tf.keras` to the Keras 2.1.6 API.
*   Added
    [`tf.keras.layers.CuDNNGRU`](https://www.tensorflow.org/versions/r1.9/api_docs/python/tf/keras/layers/CuDNNGRU)
    and