Yamaha MSX CX5M Mouse

Afaik the MSX ports, while also DE9, are NOT compatible with the standard atari/commodore/sega joystick ports. A few pins were moved around. Blame Microsoft. (from http://pinouts.ru/Inputs/JoystickMsx_pinout.shtml) Pin MSX Atari/Commodore/etc 1 /FORWARD /FORWARD or mouse XA* 2 /BACK /BACK or mouse XB* 3 /LEFT /LEFT or mouse YB* 4 /RIGHT /RIGHT or mouse YA* 5 +5V POT Y 6 /BTN1 or OUT1 /BTN1 or Light Pen 7 /BTN2 or OUT2 +5V 8 OUT3 GND 9 GND /BTN2 or POT X * the encoding of these 4 bits for mice-trackball varied between manufacturer and sometimes even between products (see CX-44 vs CX-80 trackballs by atari) -- Jonathan Gevaryahu jgevaryahu(@t)hotmail(d0t)com jzg22(@t)drexel(d0t)edu