SAX         SAX Accu AND with X-Register, result into memory          SAX
                                                     N V - B D I Z C
  Operation:  M <- (A) /\ (X)                        ? ? - - - - ? ?

  +----------------+-----------------------+---------+---------+----------+
  | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles|
  +----------------+-----------------------+---------+---------+----------+
  |  Zeropage      |   SAX $FF             |   $87   |    2    |    3     |
  |  Zeropage,Y    |   SAX $FF,Y           |   $97   |    2    |    4     |
  |  Absolute      |   SAX $FFFF           |   $8F   |    3    |    4     |
  |  (Indirect,X)  |   SAX ($FF,X)         |   $83   |    2    |    6     |
  +----------------+-----------------------+---------+---------+----------+