for (Node* n : while_ctx->exit_nodes()) dy.push_back(backprops[n]);
  std::vector<Output> dx;
  TF_RETURN_IF_ERROR(AddWhileLoopGradient(while_ctx, while_scope, dy, &dx));

  // Backprop along the in edges to the while loop (i.e. the inputs to the enter
  // nodes)
  DCHECK_EQ(dx.size(), while_ctx->enter_nodes().size());
  for (int i = 0, end = dx.size(); i < end; ++i) {
    Node* enter_node = while_ctx->enter_nodes()[i];

	var nPix []uint8
	dx := m.Bounds().Dx()
	dy := m.Bounds().Dy()
	nPix = make([]uint8, dx*dy)
	offset := 0 // steps through the input by sequential scan lines.
	for _, pass := range interlacing {
		nOffset := pass.start * dx // steps through the output as defined by pass.
		for y := pass.start; y < dy; y += pass.skip {
			copy(nPix[nOffset:nOffset+dx], m.Pix[offset:offset+dx])
			offset += dx

// A brief recap of the amd64 calling convention.
// Arguments are passed in DI, SI, DX, CX, R8, R9, the rest is on stack.
// Callee-saved registers are: BX, BP, R12-R15.
// SP must be 16-byte aligned.
// On Windows:
// Arguments are passed in CX, DX, R8, R9, the rest is on stack.
// Callee-saved registers are: BX, BP, DI, SI, R12-R15.

	}
	_, e.err = e.w.Write(b)
	if e.err != nil {
		return
	}
	_, e.err = e.w.Write(e.footer[:4])
}

func (e *encoder) writeIHDR() {
	b := e.m.Bounds()
	binary.BigEndian.PutUint32(e.tmp[0:4], uint32(b.Dx()))
	binary.BigEndian.PutUint32(e.tmp[4:8], uint32(b.Dy()))
	// Set bit depth and color type.
	switch e.cb {
	case cbG8:
		e.tmp[8] = 8
		e.tmp[9] = ctGrayscale
	case cbTC8:
		e.tmp[8] = 8

     *
     *    dX = U / Y
     *    dY = -U*X / Y^2 = (X/Y) * -U / Y = -U*Z / Y
     *
     */

    AbstractTensorHandle* upstream_grad = grad_outputs[0];
    AbstractTensorHandle* Y = forward_inputs_[1];
    AbstractTensorHandle* Z = forward_outputs_[0];

    // Calculate dX =  U / Y
    std::string name = "Div_Grad_X";
    TF_RETURN_IF_ERROR(

    touchid = null;
    touchid2 = null;
  }

  function panStart(x, y) {
    moved = false;
    panLastX = x;
    panLastY = y;
  }

  function panMove(x, y) {
    let dx = x - panLastX;
    let dy = y - panLastY;
    if (Math.abs(dx) <= 2 && Math.abs(dy) <= 2) return; // Ignore tiny moves

    moved = true;
    panLastX = x;
    panLastY = y;

    // Firefox workaround: get dimensions from parentNode.

    @Test
    void populatePropertiesOverwrite() throws Exception {
        // Arrange
        CliRequest request = new CliRequest(new String[] {"-Dx", "-Dx=false", "validate"}, null);

        // Act
        cli.cli(request);
        cli.properties(request);

        // Assert
        assertThat(request.getUserProperties().getProperty("x"), is("false"));
    }

    @Test

	IEEE = 0xedb88320

	// Castagnoli's polynomial, used in iSCSI.
	// Has better error detection characteristics than IEEE.
	// https://dx.doi.org/10.1109/26.231911
	Castagnoli = 0x82f63b78

	// Koopman's polynomial.
	// Also has better error detection characteristics than IEEE.
	// https://dx.doi.org/10.1109/DSN.2002.1028931
	Koopman = 0xeb31d82e
)

// Table is a 256-word table representing the polynomial for efficient processing.

// (DRAFT), Algorithm 14.
func parseDK(dx *decryptionKey, dkPKE []byte) error {
	if len(dkPKE) != decryptionKeySize {
		return errors.New("mlkem768: invalid decryption key length")
	}

	for i := range dx.s {
		f, err := polyByteDecode[nttElement](dkPKE[:encodingSize12])
		if err != nil {
			return err
		}
		dx.s[i] = f
		dkPKE = dkPKE[encodingSize12:]
	}

	return nil
}

		Delay:     make([]int, len(frames)),
		LoopCount: 5,
	}
	for i, f := range frames {
		g, err := readGIF(f)
		if err != nil {
			t.Fatal(f, err)
		}
		m := g.Image[0]
		if m.Bounds().Dx() != width || m.Bounds().Dy() != height {
			t.Fatalf("frame %d had unexpected bounds: got %v, want width/height = %d/%d",
				i, m.Bounds(), width, height)
		}
		g0.Image[i] = m
	}