Re: Apple IIgs 16 pin game I/O port question

[stockhunt11 <stockhunt11@gmail.com>]

On Jun 20, 2:15 am, "Michael J. Mahon" <mjma...@aol.com> wrote:
> Mitchell Spector wrote:
> > "Michael J. Mahon" <mjma...@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 II
> > family) 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."

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