[grishka]

As I understand it, there are two ways to approach emulating a console that has a firmware, whether it's a BIOS or a full-fledged OS:

- You could emulate the hardware only, on its lowest level, and make the user provide the firmware dump. This makes the emulation more faithful, but sourcing the firmware isn't always easy.

- You could instead go up a layer emulate the firmware interface that games see. This might get you performance benefits, because you now have the freedom to optimize the low-level implementation details for your particular host platform, but that would mean the emulation itself would not be 100% accurate.