STX STX Store index X in memory STX Operation: X -> M N Z C I D V . . . . . . (Ref: 7.2) +----------------+-----------------------+---------+---------+----------+ | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles| +----------------+-----------------------+---------+---------+----------+ | Zero Page | STX $FF | $86 | 2 | 3 | | Zero Page,Y | STX $FF,Y | $96 | 2 | 4 | | Absolute | STX $FFFF | $8E | 3 | 4 | +----------------+-----------------------+---------+---------+----------+