PEA            PEA Push Effective Absolute Address on Stack           PEA
                     (or Push Immediate Data on Stack)

 65816 only!
                                                        N V M X D I Z C
  Operation:  W -> Ws, S-2 ->S                          . . . . . . . .

  +----------------+-----------------------+---------+---------+----------+
  | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles|
  +----------------+-----------------------+---------+---------+----------+
  | Immediate/Stack|   PEA #$FFFF          |   $F4   |    3    |     5    |
  +----------------+-----------------------+---------+---------+----------+

  Note: Sometimes PEA is said to have Absolute-addressing-mode. But it
  definately behaves like Immediate.