TYA TYA Transfer index Y to accumulator TYA Operation: Y -> A N Z C I D V / / . . . . (Ref: 7.14) +----------------+-----------------------+---------+---------+----------+ | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles| +----------------+-----------------------+---------+---------+----------+ | Implied | TYA | $98 | 1 | 2 | +----------------+-----------------------+---------+---------+----------+