func roff(rm int16, o uint32, amount int16) uint32 {
	return uint32(rm&31)<<16 | o<<13 | uint32(amount)<<10
}

// encRegShiftOrExt returns the encoding of shifted/extended register, Rx<<n and Rx.UXTW<<n, etc.
func (c *ctxt7) encRegShiftOrExt(p *obj.Prog, a *obj.Addr, r int16) uint32 {
	var num, rm int16
	num = (r >> 5) & 7
	rm = r & 31
	switch {

			return
		}
		if _, err := io.ReadFull(s, buf[4:ipLen+6]); err != nil {
			t.Errorf("socks5 proxy address read: %v", err)
			return
		}
		ip := net.IP(buf[4 : ipLen+4])
		port := binary.BigEndian.Uint16(buf[ipLen+4 : ipLen+6])
		copy(buf[:3], []byte{5, 0, 0})
		if _, err := s.Write(buf[:ipLen+6]); err != nil {
			t.Errorf("socks5 proxy connect write: %v", err)
			return
		}

	}

	if int(p.From.Reg) == from {
		p.From.Reg = int16(to)
		p.Ft = 0
	}

	if int(p.To.Reg) == from {
		p.To.Reg = int16(to)
		p.Tt = 0
	}

	if int(p.From.Index) == from {
		p.From.Index = int16(to)
		p.Ft = 0
	}

	if int(p.To.Index) == from {
		p.To.Index = int16(to)
		p.Tt = 0
	}

	if false { /* debug['Q'] */

		{NullInt32{222, false}, 1, NullInt32{0, false}},
		{0, NullInt32{31, false}, nil},
	}}
	nullTestRun(t, spec)
}

func TestNullInt16Param(t *testing.T) {
	spec := nullTestSpec{"nullint16", "int16", [6]nullTestRow{
		{NullInt16{31, true}, 1, NullInt16{31, true}},
		{NullInt16{-22, false}, 1, NullInt16{0, false}},
		{22, 1, NullInt16{22, true}},
		{NullInt16{33, true}, 1, NullInt16{33, true}},

    This operation reverses each dimension i for
    which there exists j s.t. axis[j] == i.

    Args:
      tensor: A Tensor. Must be one of the following types:
      uint8, int8, int16, int32, int64, float32, bool Up to 8-D.

      axis: A Tensor. Must be one of the following types: int32, int64.
      with only 1 element which is the axis index.
      TODO: Add support for multiple elements.
  }];