GBA start routine and global variables initialization - Documentation - Fire Emblem Universe

This documentation contains both hardware and software knowledge. GBA start routine BIOS (power on) When I turn my GBA, the first instruction executed is at 0. That’s because GBA uses ARM CPU (ARM7TDMI) and pc/r15 is 0 when power on. According to GBA Memory Map, 0 is in BIOS (System ROM). BIOS has protection, so it is a black box. However, Nintendo doesn’t protect it well, so it can be dumped and reversed. In addition, it can even be extracted from a 3DS VC title directly (agb.bin). I ripped

FE_Builder_GBA -- If you have any questions, attach report7z - Toolbox - Fire Emblem Universe

FE_Builder_GBA -- If you have any questions, attach report7z - Toolbox - Fire Emblem Universe

Steam Workshop::literally just making this to easily share stuff with friends

Hyphenation

Steam Workshop::ULTRAPACK by. Keneroon

FE_Builder_GBA -- If you have any questions, attach report7z - Toolbox - Fire Emblem Universe

FE_Builder_GBA -- If you have any questions, attach report7z - Toolbox - Fire Emblem Universe

FE_Builder_GBA -- If you have any questions, attach report7z - Toolbox - Fire Emblem Universe

Steam Workshop::RoA Workshop Downloads

GBAFE Assembly for Dummies, by Dummies - Tutorials - Fire Emblem Universe