In order to emulate some home consoles (Playstation 1/2, Sega Saturn/CD/32x, etc.) a dump of the system's BIOS is required to emulate the console. Out of the Nintendo 64 emulators I have found online, none require the BIOS for ROM playback. How can N64 emulators work without the system BIOS? Is this because of the way the Nintendo 64 system was architected, or choices made by the author of the emulator?
Actually, I should note that CEN64 emulator requires the
pifdata.bin BIOS file, but this is the first that I've ever heard of something like this.