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SLEEP (SPC700)
From SnesLab
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Implied (type 3) | EF | 1 byte | 3 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | . | . |
SLEEP is an SPC700 standby instruction. It hangs the S-SMP until reset.[2] Nintendo does not want you to use this instruction.[3]
No flags are affected.
Syntax
SLEEP
Perhaps SLEEP would have been more useful if the APU supported hardware interrupts.
See Also
References
- Official Super Nintendo development manual on SLEEP: Table C-20 in Appendix C-10 of Book I
- https://problemkaputt.de/fullsnes.htm#snesapuspc700cpujumpcontrolcommands
- Appendix C-1
- anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L584