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ORA
From SnesLab
ORA is a 65x instruction that performs a logical OR.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| immediate | 09 | 2 bytes | 2 cycles | ||||
| absolute | 0D | 3 bytes | 4 cycles | ||||
| absolute long | 0F | 4 bytes | 5 cycles | ||||
| direct page | 05 | 2 bytes | 3 cycles | ||||
| direct page indirect | 12 | 2 bytes | 5 cycles | ||||
| direct page indirect long | 07 | 2 bytes | 6 cycles | ||||
| absolute indexed by X | 1D | 3 bytes | 4 cycles | ||||
| absolute long indexed by X | 1F | 4 bytes | 5 cycles | ||||
| absolute indexed by Y | 19 | 3 bytes | 4 cycles | ||||
| direct page indexed by X | 15 | 2 bytes | 4 cycles | ||||
| direct page indexed indirect by X | 01 | 2 bytes | 6 cycles | ||||
| direct page indirect indexed by Y | 11 | 2 bytes | 5 cycles | ||||
| direct page indirect long indexed by Y | 17 | 2 bytes | 6 cycles | ||||
| stack relative | 03 | 2 bytes | 4 cycles | ||||
| stack relative indirect indexed by Y | 13 | 2 bytes | 7 cycles | ||||
| Flags Clobbered | |||||||
|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C |
| . | . | . | . | . | . | ||