DevKit Advance on O'Reilly.
"People interested in making their own games for the Nintendo Gameboy Advance will find the unofficial Gameboy Advance (GBA) software development kit (SDK) indispensable. Based on the GNU Compiler Collection (GCC), DevKit Advance runs on Windows, Linux, and Mac OS X; it comes compiled with the Socrates Gameboy Advance Development Environment (SGADE), a library of generic code for the GBA platform released under an open source license. The rest of the DevKit Advance code is released under the GNU General Public License.
to post comments)