ROR ROR Rotate one bit right (memory or accumulator) ROR +------------------------------+ | | | +-+ +-+-+-+-+-+-+-+-+ | Operation: +-> |C| -> |7|6|5|4|3|2|1|0| >-+ N Z C I D V +-+ +-+-+-+-+-+-+-+-+ / / / . . . (Ref: 10.4) +----------------+-----------------------+---------+---------+----------+ | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles| +----------------+-----------------------+---------+---------+----------+ | Accumulator | ROR A | $6A | 1 | 2 | | Zero Page | ROR $FF | $66 | 2 | 5 | | Zero Page,X | ROR $FF,X | $76 | 2 | 6 | | Absolute | ROR $FFFF | $6E | 3 | 6 | | Absolute,X | ROR $FFFF,X | $7E | 3 | 7 | +----------------+-----------------------+---------+---------+----------+ Note: ROR instruction is available on MCS650X microprocessors after June, 1976.