Mitchell Spector wrote:
"Michael J. Mahon" <mjmahon@aol.com> wrote:Mitchell Spector wrote:Pin 5 on the IIe is "Strobe", Pin 5 on the IIgs is +5 volts pull up. Pin 9 on the IIe is unused, Pin 9 on the IIgs is switch 3 (I suppose offering the potential for a 4 button joystick, never saw one).Ah, yes--I'd forgotten the loss of strobe... ;-) And I suspect their hope was that the machine could now support two 2-button joysticks. ;-)That had always been a disappointment (across the entire Apple IIfamily) the lack of support for two joysticks at once. On the other hand, we did have analog with two (sometimes even three!) buttons, whereas most other machines used digital with one button.
Of course, the Apple II could always support two joysticks, each with one button. The only thing needed was an adapter to map one of them to PDLs 3 and 4 and another pushbutton input. I remember building such a "game port breakout box" about six months after getting my ][+. -michael AppleCrate: An Apple II "blade server"! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it's seriously underused."