Changes
/* Fire Button Notes */ Fire 3 is not undocumented, in my CPCs handbook the corresponding pin is indicated.
== Fire Button Notes ==
* Pin 5 - Fire 3 - This is an undocumented scarcly documented and very rarely used input (used by the AMX Mouse for example).
* Pin 6 - Fire 2 - This is the standard button, used by most games.
* Pin 7 - Fire 1 - This is the extra button, used only by a few games.
