Dolphin faces no such burden. Because no game calls a system BIOS during runtime, Dolphin does not need to emulate one. The emulator can directly boot a game disc (or ISO) without any intermediate firmware. The only BIOS-like component Dolphin interacts with is the Wii's (flash memory) for system menu functionality, saved games, and Miis. However, this is an optional feature. For playing standard Wii and GameCube game ISOs, a NAND dump is not required.
Q: How do I obtain BIOS files for Dolphin? A: You can obtain BIOS files for Dolphin by dumping the BIOS from your Wii console or obtaining it from a trusted source.