We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
Interrupt Request: Difference between revisions
From SnesLab
(added some IRQ sources) |
(EI and DI) |
||
| (8 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
An '''interrupt request''' (IRQ) is an interrupt that can be ignored. It has the lowest priority out of all the interrupts. [2] | An '''interrupt request''' (IRQ) is an interrupt that can be ignored. It has the lowest priority out of all the interrupts. <sup>[2]</sup> | ||
IRQs can go into the [[Control Deck]] through both the [[Cartridge Slot]] and the [[Expansion Port]]. | IRQs can go into the [[Control Deck]] through both the [[Cartridge Slot]] and the [[Expansion Port]]. | ||
The [[S-SMP]] has no hardware interrupt sources, but if it did, [[EI]] and [[DI]] would be useful. | |||
=== See Also === | === See Also === | ||
* [[NMI]] | * [[NMI]] | ||
* [[IRQ Flag]] | |||
* [[SEI]] | |||
* [[CLI]] | |||
* [[BRK]] | |||
=== External Links === | === External Links === | ||
# snes9x implementation of IRQ: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L2588 | |||
# 65c816 datasheet | |||
# https://problemkaputt.de/fullsnes.htm#snesppuinterrupts | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Official Jargon]] | |||
Latest revision as of 04:56, 22 July 2024
An interrupt request (IRQ) is an interrupt that can be ignored. It has the lowest priority out of all the interrupts. [2]
IRQs can go into the Control Deck through both the Cartridge Slot and the Expansion Port.
The S-SMP has no hardware interrupt sources, but if it did, EI and DI would be useful.
See Also
External Links
- snes9x implementation of IRQ: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L2588
- 65c816 datasheet
- https://problemkaputt.de/fullsnes.htm#snesppuinterrupts