How to use an advanced calculator as a “Game Boy” for CHIP-8! In 1990, the 1977 programming language and interpreter CHIP-8 had its renaissance on the HP 48S, a graphing calculator that was common in engineering schools. The numeric keypad was well suited for CHIP-8 input, and the simple language made it easier to make small games to play in the classroom. I recently purchased an HP 48GX to play CHIP-8 games on. The user manual is pretty hefty, so I thought I’d write a short guide on how to use ...