Aminet 2/Aminet AMIGA CDROM (1994)(Walnut Creek)[Feb 1994][W.O. 44790-1].iso/Aminet/dev/amos/AMOSList0993.lzh/AMOSLIST/[e-mail]_Thu Sep 30 17:53:46 1993.msg

Internet Message Format | 1993-10-03 | 2KB

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Date: 30 Sep 93 17:35:00 EST
From: "Andrew Church" <[e-mail]>
Subject: Re: Output Joy
To: "amos-list" <[e-mail]>
Status: O

>  I've done some simple things in interfacing TTL circuits to the parallel
>port, using AMOS (1.3x).  (Just peeks and pokes to configure the data direction
>and data registers)  Does anyone have any info on using joystick #2 as an
>output device?  (I just need a few more bits of O as in I/O!) Any info would
>be appreciated.  - Wally

  Looking in my reference manual, the following statement should do the trick:

Doke $DFF034,$A000+(DAT9*$4000)+(DAT5*$1000)

where DAT9 is the data bit output over pin 9, and DAT5 is the bit output
over pin 5.  I think (though I'm not sure) that the lines are active low.

  --Andy Church