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SUBW (SPC700): Difference between revisions
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=== External Links === | === External Links === | ||
* Official Super Nintendo development manual on SUBW: Table C-12 in [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | * Official Super Nintendo development manual on SUBW: Table C-12 in [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | ||
* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L587 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
Revision as of 21:39, 13 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Direct Page | 9A | 2 bytes | 5 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | |||||
SUBW (Subtract Word) is an SPC700 command that subtracts a 16-bit direct page word from YA. The difference is stored in YA.
Syntax
SUBW YA, dp
See Also
External Links
- Official Super Nintendo development manual on SUBW: Table C-12 in Appendix C-8 of Book I
- anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L587