We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
CMPW (SPC700): Difference between revisions
From SnesLab
(→See Also: MOVW) |
(dp admodes) |
||
| Line 7: | Line 7: | ||
|'''Speed''' | |'''Speed''' | ||
|+ | |+ | ||
| | |[[Direct Page Addressing | Direct Page]] | ||
|5A | |5A | ||
|2 bytes | |2 bytes | ||
Revision as of 19:09, 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