Nds-bios-arm7.bin !!install!! -

Without the correct BIOS, an emulator will either:

To understand the file, one must first understand the machine it belongs to. The Nintendo DS was a unique piece of hardware for its time because it utilized a dual-processor architecture. Unlike a standard PC or even its predecessor the Game Boy Advance, the NDS ran on two distinct Central Processing Units (CPUs): Nds-bios-arm7.bin