Homebrew OPEN_AGB_FIRM discussion thread

[DSoryu]

What's the latest release for this? Is it on the GitHub? I'm curious if they could ever implement a sleep mode.

https://github.com/profi200/open_agb_firm/releases/tag/alpha_2023-10-6

There's a separate PR that implements partial sleep mode support, but had minor issues last time I checked.

 

[WizardWell]

https://github.com/profi200/open_agb_firm/releases/tag/alpha_2023-10-6

There's a separate PR that implements partial sleep mode support, but had minor issues last time I checked.

I did some digging and found that someone had patched the GBA rom with a sleep hack, somehow making it so that the signal for initiating the sleep was the same code for when the 3DS lid is closed. I found it on reddit:

Anybody know of how to pull that off? I've found a sleep hacking tool but I'm unsure how you designate the sleep signal to be the lid closing.

 

[recs]

Is it possible to disable or remap the X + left combo to turn off the screen? Well, and all X + dpad combos. If you remap the X button to B for example is not very usable with this input enabled. Don't see any options on the github readme.

 

[DSoryu]

Is it possible to disable or remap the X + left combo to turn off the screen? Well, and all X + dpad combos. If you remap the X button to B for example is not very usable with this input enabled. Don't see any options on the github readme.

You need to edit the source, these are the relevant lines:

https://github.com/profi200/open_ag...a7cd30c2e16/source/arm11/open_agb_firm.c#L278

 

[recs]

You need to edit the source, these are the relevant lines:

https://github.com/profi200/open_ag...a7cd30c2e16/source/arm11/open_agb_firm.c#L278

Thank you! But damn I gotta install visual studio and libraries, clone the thing, compile and all. If anyone has done it and wanna share it I would be super grateful, otherwise I'll remember to share it here if I ever get to it (not soon tho).

 

[WizardWell]

Further on the sleep mode discussion, I found this: https://github.com/LumaTeam/Luma3DS/issues/1691

apparently AGB_FIRM has sleep mode, but open_agb_firm does not? What is the difference between those two firms? AGB_FIRM is just what literally runs the GBA games right? And Open is the full selection firmware.

 

[DSoryu]

I did some digging and found that someone had patched the GBA rom with a sleep hack, somehow making it so that the signal for initiating the sleep was the same code for when the 3DS lid is closed. I found it on reddit:

Anybody know of how to pull that off? I've found a sleep hacking tool but I'm unsure how you designate the sleep signal to be the lid closing.

You need GBATA to add sleep mode patches to any GBA game, for that "button combination" I don't really know, but afaik that wouldn't work on oaf since it needs to be implemented in oaf side (which doesn't support proper sleep mode yet) and not just on the GBA rom side. You can try a build with the PR i referenced earlier for partial sleep mode support.

Further on the sleep mode discussion, I found this: https://github.com/LumaTeam/Luma3DS/issues/1691

apparently AGB_FIRM has sleep mode, but open_agb_firm does not? What is the difference between those two firms? AGB_FIRM is just what literally runs the GBA games right? And Open is the full selection firmware.

The difference is that open_agb_firm, as the name suggest, is a bare-metal open source implementation made from scratch to use the 3DS's GBA hardware in a similar way to AGB_FIRM.

In conclusion, AGB_FIRM =/= open_agb_firm

 

[Pickle_Rick]

Updated OP to reflect latest build.

 

[Doomguy]

Updated OP to reflect latest build.

Was a new build released? Unless I'm seeing things incorrectly the most recent build is still the one that released earlier back in October.

 

[Nintendoswitchmodfan]

Anyone know a way to set up the GBA to show only on the bottom screen?

 

[baby_gakuin]

this is better for use cias on o3ds?

 

[CoolMe]

this is better for use cias on o3ds?

Open_agb_firm doesn't use or play .cia files, only .gba files.

 

[baby_gakuin]

Open_agb_firm doesn't use or play .cia files, only .gba files.

gba roms?

 

[CoolMe]

gba roms?

Yes.

 

[ImaDireWolf]

this is better for use cias on o3ds

compatibility and performance wise its basically the same, but open_agb_firm is more pratical and have some good features

 

[DSoryu]

Anyone know a way to set up the GBA to show only on the bottom screen?

Not implemented yet.

 

[Nintendoswitchmodfan]

Not implemented yet.

Thank you for the information <3

 

[WizardWell]

compatibility and performance wise its basically the same, but open_agb_firm is more pratical and have some good features

In one regard yes, in another... not having sleep mode is a huge hinderance.

 

[DSoryu]

In one regard yes, in another... not having sleep mode is a huge hinderance.

Stock AGB_FIRM doesn't have sleep mode either, both cases due to hardware limitations.

 

[Apache Thunder]

Yeah official AGB_FIRM's "sleep mode" isn't a real sleep mode. Sure the screens might turn off but the game isn't suspended and still runs. So for example if you go to sleep mode while playing a Mario game and you didn't pause the game, the level would time out or your character could die from touching an enemy while you have the console in sleep mode because the game isn't actually suspended.