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SWAP (Super FX): Difference between revisions
From SnesLab
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SWAP | SWAP | ||
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==== Example ==== | |||
Let: | |||
S<sub>reg</sub> : R<sub>3</sub> | |||
D<sub>reg</sub> : R<sub>13</sub> | |||
R<sub>3</sub> : 48d0h | |||
After executing SWAP: | |||
R<sub>13</sub> = d048h | |||
[[File:gsu_swap.png]] | [[File:gsu_swap.png]] | ||
Revision as of 19:09, 8 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Implied (type 1) | 4D | 1 byte | 3 cycles | 3 cycles | 1 cycle | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | ||||
SWAP is a Super FX instruction that swaps two bytes. The low byte of the source register is written to the high byte of the destination register, and the high byte of the source register is written to the low byte of the destination register. The source register itself is left unchanged.
Syntax
SWAP
Example
Let:
Sreg : R3 Dreg : R13 R3 : 48d0h
After executing SWAP:
R13 = d048h
See Also
External Links
- Official Nintendo documentation on SWAP: 9.88 on Page 2-9-120 of Book II