According to wikipedia "CHIP-8 is an interpreted programming language that runs in a virtual machine. It was initially used on the COSMAC VIP and Telmac 1800 8-bit microcomputers in the mid-1970s. It was made to allow video games to be more easily programmed for these computers.
A friend of mine told me about CHIP-8 and I found it rather simple so I attempted to write an emulator as a practice and for fun, but as it might be obvious from the code, I stopped midway. I migh complete it later but I don't want too dedicated to it since it is not a main project right now, maybe later...