We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
ADDW (SPC700): Difference between revisions
From SnesLab
(linkify dp) |
|||
| (4 intermediate revisions by the same user not shown) | |||
| Line 16: | Line 16: | ||
!colspan="8"|Flags Affected | !colspan="8"|Flags Affected | ||
|+ | |+ | ||
|N | |[[Negative Flag|N]] | ||
|V | |[[Overflow Flag|V]] | ||
|P | |[[Direct Page Flag|P]] | ||
|B | |[[Break Flag|B]] | ||
|H | |[[Half-Carry Flag|H]] | ||
|I | |[[Interrupt Enable Flag|I]] | ||
|Z | |[[Zero Flag|Z]] | ||
|C | |[[Carry Flag|C]] | ||
|+ | |+ | ||
| | | | ||
| Line 35: | Line 35: | ||
|} | |} | ||
'''ADDW''' (Add Word) is an [[SPC700]] command that adds a [[direct page]] value to [[YA]]. | '''ADDW''' (Add Word) is an [[SPC700]] command that adds a 16-bit [[direct page]] value to [[YA]]. | ||
=== See Also === | === See Also === | ||
| Line 44: | Line 44: | ||
=== External Links === | === External Links === | ||
* Official Super Nintendo development manual on ADDW: [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | * Official Super Nintendo development manual on ADDW: Table C-12 in [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | ||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:SPC700]] | [[Category:SPC700]] | ||
[[Category:16-bit Operation Commands]] | [[Category:16-bit Operation Commands]] | ||
[[Category:Two-byte Instructions]] | |||
Latest revision as of 11:53, 28 November 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Direct Page | 7A | 2 bytes | 5 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | |||||
ADDW (Add Word) is an SPC700 command that adds a 16-bit direct page value to YA.
See Also
External Links
- Official Super Nintendo development manual on ADDW: Table C-12 in Appendix C-8 of Book I