We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
DEC (SPC700): Difference between revisions
From SnesLab
(created page) |
(added official Nintendo doc link) |
||
| Line 64: | Line 64: | ||
=== See Also === | === See Also === | ||
* [[DEC]] | * [[DEC]] | ||
=== External Links === | |||
* Official Nintendo documentation on DEC: https://archive.org/details/SNESDevManual/book1/page/n232 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:SPC700]] | [[Category:SPC700]] | ||
[[Category:Addition and Subtraction Commands]] | [[Category:Addition and Subtraction Commands]] | ||
Revision as of 03:19, 17 May 2023
DEC is an SPC700 instruction that decrements a value.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| 9C | 1 byte | 2 cycles | |||||
| 8B | 2 byte | 4 cycles | |||||
| 9B | 2 byte | 5 cycles | |||||
| 8C | 3 bytes | 5 cycles | |||||
| 1D | 1 byte | 2 cycles | |||||
| DC | 1 byte | 2 cycles | |||||
| Flags Clobbered | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | ||
See Also
External Links
- Official Nintendo documentation on DEC: https://archive.org/details/SNESDevManual/book1/page/n232