As long as it doesn’t include a bios file, and is completely free (including no in app purchases), I doubt it. Emulators like igba are all over the Google play store, Nintendo only shows its fangs when they try to make money or contain proprietary code.
An emulator, even a paid one, would be totally legal in the US as long as:
It does not use any patented technologies. I’m not sure if Nintendo has any patents in the emulation space, but regardless the GBA is so simple that it wouldn’t require patented techniques to emulate.
It does not contain any proprietary (copyrighted) code. On more modern consoles, this would include the BIOS or Firmware files. Does the GBA even need something like that?
Number 1 is a non-issue for a GBA emulator. Number 2 is more tricky, but it’s always possible to reverse engineer and reimplement the firmware. That’s protected by the Compaq v. IBM case.
The recent drama with the Switch emulator is that they violated the second principle.
Which is probably not copyrightable. A key is just a number, and copyright only applies to creative works. In a court, Nintendo would have to argue that copyright does apply because the key was created via some artistic or creative process by a human. It likely is just the output of a random number generator. Also, we’ve already been through this when people figure out how to decrypt DVDs.
As long as it doesn’t include a bios file, and is completely free (including no in app purchases), I doubt it. Emulators like igba are all over the Google play store, Nintendo only shows its fangs when they try to make money or contain proprietary code.
And actually, looking at it
https://play.google.com/store/apps/details?id=com.fastemulator.gba&hl=en_US
There are paid android emulators on google play, so if Nintendo hasn’t already taken them down, I can’t see them doing that here
An emulator, even a paid one, would be totally legal in the US as long as:
It does not use any patented technologies. I’m not sure if Nintendo has any patents in the emulation space, but regardless the GBA is so simple that it wouldn’t require patented techniques to emulate.
It does not contain any proprietary (copyrighted) code. On more modern consoles, this would include the BIOS or Firmware files. Does the GBA even need something like that?
Number 1 is a non-issue for a GBA emulator. Number 2 is more tricky, but it’s always possible to reverse engineer and reimplement the firmware. That’s protected by the Compaq v. IBM case.
The recent drama with the Switch emulator is that they violated the second principle.
What proprietary code did they have?
Stupidly, the decryption key.
Which is probably not copyrightable. A key is just a number, and copyright only applies to creative works. In a court, Nintendo would have to argue that copyright does apply because the key was created via some artistic or creative process by a human. It likely is just the output of a random number generator. Also, we’ve already been through this when people figure out how to decrypt DVDs.
You’re forgetting about the DMCA.