How does dual-slot mode *technically* work?

How does dual-slot mode *technically* work? ds with gameboy slot I am not entirely sure what you are trying to do But when you are in a ds game, it doesnt matter if anything is in the gba slot I wouldnt wire ds gameboy slot My goal is to reverse engineer the protocol, but I have no idea where to even start Specifically: How does the DS game know which GBA game is

ds gameboy slot Like a cartridge slot for your computer · Never lose a precious save again · Develop homebrew and play it on original hardware · Counterfeit cartridge detection

ds99 slot I'm under the assumption that as long as you get a Nintendo DS game it will have that extra slot since the Nintendo DS It would be simpler to write an Emulator for GBA games and dump them with a DS lite There are already GBA Emulators avaible Top