Re: woz' original "brick out" - source code , paddles

[mad.scientist.jr@gmail.com]

Thanks for the info - I have a couple of other questions.

1) What kind of connector is it that plugs into the II's game port on
the motherboard, and where can you find one? Is there an equivalent
Radio Shack or Mouser part # that would work for this?

2) What is the equation to figure out the uF for a cap you would need
to get it to work with a 50K pot?

Thanks again...

> As for the paddles,
> connect an 150K ohm potentometer between +5v and each paddle input.
> Since 100K ohm potentiometers are much more common these  days, you can
> use one of those and in addition connect .01 uF cap between the paddle
> input and ground to make up for the difference in resistance.  The
> paddle circuit simply measures the RC time constant that varies with the
> potentiometer setting.


On Oct 22, 9:38 pm, Mike Willegal <m...@willegal.net> wrote:
> An early "Breakout" listing is in the redbook.  As for the paddles,
> connect an 150K ohm potentometer between +5v and each paddle input.
> Since 100K ohm potentiometers are much more common these  days, you can
> use one of those and in addition connect .01 uF cap between the paddle
> input and ground to make up for the difference in resistance.  The
> paddle circuit simply measures the RC time constant that varies with the
> potentiometer setting. The game port pin out is also in the red book
> which can be found online in a couple of places.  Search for "Apple II
> reference manual".
>
> Regards,
> Mike Willegal
>
> mad.scientist...@gmail.com wrote:
> > Can anyone point me to the original source code for Woz' Integer BASIC
> > "Brick Out" game for the Apple II?
> > (or any Apple 2 BASIC or assembly program listings, for that matter, I
> > would like to play around with writing some pong type games on the
> > apple IIe)
>
> > Is "Little Brick Out" the Woz version, or is this a later remake?
>
> > Also, is there any documentation online on how you would build your
> > own paddles? I have built paddles for the Atari 2600 which are pretty
> > easy, you just need to know the pinouts and the potentiometer values.
>
> > Thanks