Add FreeIntv (libretro emulation core for the Mattel Intellivision)
FreeIntv core provided FPS is 60, sample rate is 44100 Hz, aspect ratio is 11/7
more info: https://docs.libretro.com/library/freeintv/
FreeIntv core provided FPS is 60, sample rate is 44100 Hz, aspect ratio is 11/7
more info: https://docs.libretro.com/library/freeintv/