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IBT
From SnesLab
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Immediate | Anpp | 2 bytes | 6 cycles | 6 cycles | 2 cycles | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
IBT (Immediate Byte Transfer) is a Super FX instruction that loads an immediate byte into the low byte of a specified general register. The register's upper eight bits will be sign-extended (copied) from bit 7, effectively loading a signed 8-bit value.
The ALT0 state is restored.
Syntax
IBT Rn, #pp
where pp may be from -128 to 127. Any of the 16 general registers can be specified.
See Also
External Links
- Official Nintendo documentation on IBT: 9.41 on Page 2-9-60 of Book II