This cribsheet was very handy when I was writing a Z80 emulator. http://www.otakunozoku.com/nintendo-gameboy-cribsheet/ http://www.otakunozoku.com/nintendo-gam

This cribsheet was very handy when I was writing a Z80 emulator. http://www.otakunozoku.com/nintendo-gameboy-cribsheet/ http://www.otakunozoku.com/nintendo-gameboy-cribsheet/