It's not about the number of years, it's about how accessible the original title is. The less accessible, the better you can justify the existence of emulating that title
It's not about either of those. A system emulator is nothing more than a program that converts the hardware instructions of one piece of hardware to another. What you DO with that can be legal or illegal, but the emulator ITSELF is totally legal and requires no justification.
It's not about the number of years, it's about how accessible the original title is. The less accessible, the better you can justify the existence of emulating that title
It's not about either of those. A system emulator is nothing more than a program that converts the hardware instructions of one piece of hardware to another. What you DO with that can be legal or illegal, but the emulator ITSELF is totally legal and requires no justification.