LSRQ         LSRQ Shift right one bit (memory or accumulator)        LSRQ

  Operation:  Q <- Q >> 1, C <- A(0) or M <- M >> 1    N V - B D I Z C
                                                        0 . . . . . / /

 4510 Versions:

  +----------------+-----------------------+-----------+---------+----------+
  | Addressing Mode| Assembly Language Form|  OP CODE  |No. Bytes|No. Cycles|
  +----------------+-----------------------+-----------+---------+----------+
  |ZeroPage Quad   |  LSRQ $FF             |$42 $42 $46|    4    |   12dmr  |
  |Q Register      |  LSRQ                 |$42 $42 $4A|    3    |    3     |
  |Absolute Quad   |  LSRQ $FFFF           |$42 $42 $4E|    5    |   13dmr  |
  |ZeroPage Quad,X |  LSRQ $FF,X           |$42 $42 $56|    4    |   12dmpr |
  |Absolute Quad,X |  LSRQ $FFFF,X         |$42 $42 $5E|    5    |   13dmpr |
  +----------------+-----------------------+-----------+---------+----------+
  d Sub 1 if CPU is at 3.5 MHz
  m Sub non-bus cycles when at 40 MHz
  p Add 1 if page boundary is crossed
  r Add 1 if clock speed is at 40 MHz