CPY CPY Compare memory and index Y CPY N Z C I D V Operation: Y - M / / / . . . (Ref: 7.9) +----------------+-----------------------+---------+---------+----------+ | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles| +----------------+-----------------------+---------+---------+----------+ | Immediate | CPY #$FF | $C0 | 2 | 2 | | Zero Page | CPY $FF | $C4 | 2 | 3 | | Absolute | CPY $FFFF | $CC | 3 | 4 | +----------------+-----------------------+---------+---------+----------+