PHB                PHB Push Data Bank Register on Stack                PHB

 65816 only!
                                                        N V M X D I C Z
  Operation:  DB->Bs, S-1 ->S                           . . . . . . . .

  +----------------+-----------------------+---------+---------+----------+
  | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles|
  +----------------+-----------------------+---------+---------+----------+
  | Implied        |   PHB                 |   $8B   |    1    |     3    |
  +----------------+-----------------------+---------+---------+----------+