CHIP-8 Interpreter for Epson HX-20

CHIP-8 has been ported to several platforms, but I decided to port it to the Epson HX-20 since the hardware is capable enough. The LCD screen is 120x32 pixels so it can fit the CHIP-8 screen of 64x32, and 16K of RAM is sufficient for both the interpreter code and the CHIP-8 4K memory space.