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DECW (SPC700): Difference between revisions
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'''DECW''' is an [[SPC700]] command that decrements a word. | '''DECW''' is an [[SPC700]] command that decrements a 16-bit word of the [[direct page]]. | ||
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|'''Speed''' | |'''Speed''' | ||
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| | |direct page | ||
|1A | |1A | ||
|2 bytes | |2 bytes | ||
Revision as of 01:32, 8 July 2023
DECW is an SPC700 command that decrements a 16-bit word of the direct page.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| direct page | 1A | 2 bytes | 6 cycles | ||||
| Flags Clobbered | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | ||
External Links
- Official Super Nintendo development manual on DECW: Appendix C-8 of Book I