BSR      BSR Jump to relative new location saving return address      BSR

  Operation:  PC + 2 to Stack, (PC + 1) -> PCL              N V - B D I Z C
                               (PC + 2) -> PCH              . . . . . . . .


 4510 Versions:

  +----------------+-----------------------+---------+---------+----------+
  | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles|
  +----------------+-----------------------+---------+---------+----------+
  | Relative 16bit |   BSR $FFFF           |   $63   |    3    |    3b    |
  +----------------+-----------------------+---------+---------+----------+
  b Add 1 if branch is taken
    Add 1 more if branch taken crosses a page boundary