\subsection{\label{ref:Chip8emulator}Chip{}-8 Emulator} The Chip{}-8 Emulator allows you to play many old chip8 games found on the Net. It modifies Rockbox, so file extensions .ch8 will be recognised as chip8 games. Just press PLAY on a .ch8 file to start a game. There are lots of tiny Chip8 games (usually only about 256 bytes to a couple of KB) which were made popular by the HP48 calculator's emulator for them. The original Chip8 had 64x32 pixel graphics, and the new superchip emulator supports 128x64 graphics, which almost fits on the Recorder's display. The only problem is they are based on a 4x4 keyboard, but since most games do not use all of the buttons, this can easily be worked around. Some places where can you can find .ch8 files: \begin{itemize} \item The original chip8 patch had several attached: \url{http://sourceforge.net/tracker/index.php?func=detail&aid=628509&group_id=44306&atid=439120} \item Check out the HP48 chip games section: \url{http://www.hpcalc.org/hp48/games/chip/} \item Check out the PC emulator by the guy who wrote the HP48 emulator: \url{http://www.pdc.kth.se/~lfo/chip8/CHIP8.htm} \item Links to other chip8 emulators: \url{http://www.zophar.net/chip8.html} \end{itemize}