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From: louie@trantor.umd.edu (Louis A. Mamakos)
Newsgroups: comp.sys.amiga
Subject: Re: How do I read the Joysticks?
Message-ID: <2073@umd5.umd.edu>
Date: Wed, 25-Nov-87 10:23:47 EST
Article-I.D.: umd5.2073
Posted: Wed Nov 25 10:23:47 1987
Date-Received: Sat, 28-Nov-87 18:42:27 EST
References: <760@hubcap.UUCP> <816@sdcc18.ucsd.EDU>
Sender: ris@umd5.umd.edu
Reply-To: louie@trantor.umd.edu (Louis A. Mamakos)
Organization: University of Maryland, College Park
Lines: 38
Keywords: joysticks

In article <816@sdcc18.ucsd.EDU> cs162ffl@sdcc18.ucsd.edu.UUCP (John Schultz) writes:

>  Here is a simple joystick routine in Modula-2.  


>  For more info, refer to the Hardware Manual, Appendix_A page 13.


>  buttonloc :=   ADDRESS(0BFE001H);
>  joydat[0] := bitsetptr(0DFF00AH);
>  joydat[1] := bitsetptr(0DFF00CH);



>  Hope this helps.

>  John

This type of thing is NOT what the hardware manual is for.  There are defined,
supported ways to this sort of stuff which will continue to work on newer
models of the hardware (if/when they come out).  'cmon guys, this ain't no
Apple II or C-64 where we go PEEKing and POOKing at random places in memory.

We should all consider ourselves fortunate that the A500 and A2000 are
real hardware compatible with the A1000.  I wonder how many games, etc have
hacks like this in 'em?

I suppose that these people will get what they deserve eventually.

John Schultz:  I suggest that you get a copy of the devices and libraries
or any of a number of very good books out there.  You'll find the proper way
to diddle the joysticks/mice without confusing other applications that might
happen to be running on your amiga at the time, and that are portable to newer
Amiga products that might be available in the future.


Louis A. Mamakos  WA3YMH    Internet: louie@TRANTOR.UMD.EDU
University of Maryland, Computer Science Center - Systems Programming