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RETI (SPC700): Difference between revisions
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!colspan="8"|Basic Info | !colspan="8"|Basic Info | ||
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|'''Speed''' | |'''Speed''' | ||
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| | |[[Stack Addressing | Stack]] | ||
|7F | |7F | ||
|1 byte | |1 byte | ||
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!colspan="8"|Flags | !colspan="8"|Flags Affected | ||
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|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]] | ||
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'''RETI''' (RETurn from Interrupt) is an [[SPC700]] instruction that returns from an interrupt. All | '''RETI''' (RETurn from Interrupt) is an [[SPC700]] instruction that returns from an interrupt. All [[program status word]] flags are restored after being popped off the [[stack]]. The [[program counter]] is also popped from the stack. | ||
=== See Also === | === See Also === | ||
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=== References === | === References === | ||
* [https://archive.org/details/SNESDevManual/book1/page/n234 Appendix C-9 of Book I] of the official Super Nintendo development manual | * Table C-16 in [https://archive.org/details/SNESDevManual/book1/page/n234 Appendix C-9 of Book I] of the official Super Nintendo development manual | ||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:SPC700]] | [[Category:SPC700]] | ||
[[Category:Subroutine Call Return Commands]] | |||
[[Category:One-byte Instructions]] | |||
Revision as of 06:59, 28 November 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack | 7F | 1 byte | 6 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
RETI (RETurn from Interrupt) is an SPC700 instruction that returns from an interrupt. All program status word flags are restored after being popped off the stack. The program counter is also popped from the stack.
See Also
References
- Table C-16 in Appendix C-9 of Book I of the official Super Nintendo development manual