JoyFire3 Pin5 --|>|------------- Pin8 GND Pin8 GND
JoySel1 Pin8 ------------------ Pin8 GND Pin8 GND
Batt4.5V (+-) ------------------ Pin8 GND Pin8 GND Batt4.5V (-+) ------------------ Pin7 +5V Pin7 +5V
The Atari-ST adapter is supported by G-Paint 2.0.