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DECW (SPC700): Difference between revisions
From SnesLab
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* [[INCW]] | * [[INCW]] | ||
* [[MOVW]] | * [[MOVW]] | ||
* [[DEC (SPC700)]] | |||
* [[DEC]] | |||
* [[Memory Pair]] | |||
=== External Links === | === External Links === | ||
* Official Super Nintendo development manual on DECW: Table C-12 in [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | * Official Super Nintendo development manual on DECW: 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#L422 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
Latest revision as of 12:23, 30 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Direct Page | 1A | 2 bytes | 6 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| N | . | . | . | . | . | Z | . |
DECW is an SPC700 command that decrements a 16-bit word of the direct page.
Syntax
DECW dp
See Also
External Links
- Official Super Nintendo development manual on DECW: Table C-12 in Appendix C-8 of Book I
- anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L422