TCD            TCD Transfer Accumulator to Direct Register            TCD

 65816 only!
                                                        N V M X D I Z C
  Operation:  A -> D                                    / . . . . . / .

  +----------------+-----------------------+---------+---------+----------+
  | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles|
  +----------------+-----------------------+---------+---------+----------+
  | Implied        |   TCD                 |   $5B   |    1    |     2    |
  +----------------+-----------------------+---------+---------+----------+