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Hacking Question Disable volume buttons in Horizon?

Dekopon - (Mostly) Fullspeed 3DS Emulation on Nintendo Switch

PalindromicBreadLoaf · 2026-07-16T19:11:42+00:00

Credit goes to StickyMangoRice for the logo. Dekopon is a port of Azahar to the Nintendo Switch. The current release is version 2.2.1. Performance is very title dependent, and will be improved with time, but many games can be played fullspeed right now, sometimes even with stock handheld clocks. (I do recommend at least bumping the CPU up to dev unit clocks in handheld just to reduce shader compilation stutter and smooth out some rough frame pacing.) Depending on the game, you can get up to 4x resolution scaling at full speed in docked/handheld charging (although really 3x is all you need in handheld). If you want to try any new3ds exclusive games, they won't run well. All four of the 3DS' cores run on a single emulation thread, so we're at a 1.2GHz difference (2GHz single core where as the 4 3DS cores each run at 804MHz) from what we would need (and architecture changes from 3DS to Switch cannot account for that much raw clock speed loss). The solution would be to split the emulation threads on new3DS games, but that's a ton of work for very very little gain. See here for a full compatibility chart: Dekopon Compatibility Chart Feel free to share your own compatibility findings here and I'll update the sheet accordingly. Also share any issues you have and I'll do my best to fix them. Downloads can be found here: Releases Along with the source code here: Source ROMs default location is /switch/dekopon/roms/ All formats that Azahar natively supports are supported here too. Different screen layouts can be cycled through via pressing the right stick. Pressing '+' on a game shows information about it, including updates and dlc. Enjoy! Also if someone wants to make a better UI for this I wouldn't be offended. I can't make a good UI to save my life, but the one included at least kinda functions to get you into a game.

Thread starter JacksonS
Start date Feb 11, 2019
Views 1,486
Replies 3

JacksonS

Well-Known Member

Member

Level 8

Feb 11, 2019

Hi everyone,

Does anyone with some CFW knowledge know if I can disable the volume buttons in Horizon? My motherboard has a hardware issue where the volume Up button gets pressed on its own, so I would like to disable the button in software.

I'm guessing I'd need some custom sysmodule that doesn't exist yet. It would be great if someone could point me in the right direction for making or acquiring something like this.

Deleted User

Guest

Feb 12, 2019

currently there is no method to disable buttons even in sysmodule when i trust my knowledge

JacksonS

Well-Known Member

Member

Level 8

Feb 12, 2019

Hm, do you mean it's not possible to override the button action in software, or even disable the GPIOs?

hippy dave

BBMB

Member

GBAtemp Patron 👾

Level 51

Feb 12, 2019

It hasn't been done. I don't know if it could be done with a mitm or something, or if it would require a targeted patch to the OS. Reswitched discord would probably be a better place to ask.