Changes

* Joysticks that do require 5V/GND supply (eg. for built-in auto-fire circuits) won't work on the CPC. * Joysticks with 2-3 buttons may also be problematic (in the Atari standard, 2nd/3rd button are wired between POT0/POT1 and 5V). * And, in lack of the POT inputs, any kind of analog devices (like Atari paddles) won't work on the CPC.* Newer joysticks with PC-style 15pin or USB connector obviously won't fit to the CPCs 9pin port (unless one eliminates the electronics inside of those joysticks, and re-wires their botton/dirction switches directly to the CPCs joystick port).