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CMPW (SPC700): Difference between revisions
From SnesLab
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=== External Links === | === External Links === | ||
Revision as of 06:25, 23 July 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| direct page | 5A | 2 bytes | 4 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | |||
CMPW (Compare Word) is an SPC700 command that performs a comparsion between YA and a word in the direct page. Internally, this is done by the ALU subtracting the direct page word from YA, but the difference is not stored anywhere.
See Also
External Links
- Official Nintendo documentation on CMPW: Appendix C-8 of Book I