Homebrew OPEN_AGB_FIRM discussion thread

[Archerg]

Odd question, but on my mind. GBA injects utilize a bios per CIA file and per game. Since OAF loads them straight from the .firm file, where is the bios for this being stored? I tried checking the source on GitHub, but there aren't any .bin files aside from the save database, and the makefile script points to a 9.bin and an 11.bin but aren't in the proper folders as it also points to them in an ignore script.

Would I assume that profi200 has either made a custom bios from scratch, obfuscated the bios within his scripts somewhere, or creates a bios out of the arm 9 bin to make an Arm 7 GBA bios? And would any of this create a system that's possible to use your own bios files, or the prototype bios?

 

[Maeson]

Seeing how an option in Luma is to show the bios intro when starting OAF, and that there's a tutorial in github about how to get a GBA bios out of the 3ds, I guess the system has already it.

I think most people would prefer to use mGBA since it does allow more common features that is standard for emulators than open agb firm.

The gpsp core has better performance than mgba, and also has all the other stuff. I've only tries a handful, but all of them had issues on mgba (or gbarunner2) but none apparent in gpsp.

OAF is more akin to play it in real hardware, with its pros and cons.

 

[pokota]

Odd question, but on my mind. GBA injects utilize a bios per CIA file and per game. Since OAF loads them straight from the .firm file, where is the bios for this being stored? I tried checking the source on GitHub, but there aren't any .bin files aside from the save database, and the makefile script points to a 9.bin and an 11.bin but aren't in the proper folders as it also points to them in an ignore script.

Would I assume that profi200 has either made a custom bios from scratch, obfuscated the bios within his scripts somewhere, or creates a bios out of the arm 9 bin to make an Arm 7 GBA bios? And would any of this create a system that's possible to use your own bios files, or the prototype bios?

AGB_FIRM (and by extension, OAF) essentially is the bios, just configured for CTR hardware rather than a literal AGB system.

Presumably the reason GBA Injects need a bios for each CIA is so that you don't have to do a cold boot of the device when you're done playing, like you have to do with OAF (since a CIA inject still lets you use the HOME button to get out of the GBA environment, which OAF can't directly do)