it can probably be argued that the effort put in by people surpasses the requirement for derivative work, and it should go without saying that without the ROM (

it can probably be argued that the effort put in by people surpasses the requirement for derivative work, and it should go without saying that without the ROM (or other source of assets such as sounds, art, and music) that the code in question compiles into something that doesn't function. this isn't the result of a single tool doing the work, but a lot of tools and a lot of people looking at the output of those tools and interpreting that output, then changing it to make sense within the scope of the project framework(s). probably very similar to an emulator for a single game. I am also not a lawyer.