This is a simple disassembler for Game Boy Advance games.
gbadisasm rom_file -c config_file
where rom_file is the GBA rom to disassemble, and config_file is an optional config file that gives hints to the disassembler.
The config file consists of a list of statements, one per line. Lines beginning with # are treated as comments. An config file pokeruby.cfg for Pokemon Ruby is provided as an example.