INY                    INY Increment Index Y by one                   INY

  Operation:  X + 1 -> X                                N Z C I D V
                                                        / / . . . .
                                 (Ref: 7.5)
  +----------------+-----------------------+---------+---------+----------+
  | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles|
  +----------------+-----------------------+---------+---------+----------+
  |  Implied       |   INY                 |   $C8   |    1    |    2     |
  +----------------+-----------------------+---------+---------+----------+