Hardware Limitations
open_agb_firm using the 3DS's built-in GBA hardware. Unfortunately, this comes with limitations compared to GBA emulators.
This is a list of limitations we can't solve in software or are very hard to work around.
32 MiB (>256 Mbit) games and homebrew.
Games with extra hardware built into the cartridge (except real-time clocks). Patches are required.
Proper save autodetection (can't find save type during gameplay).
32 KiB (>256 Kbit) SRAM (homebrew games/emulators).
Sound has lots of aliasing issues. No known workaround (hardware bug).