Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!jgreco
From: jgreco@csd4.milw.wisc.edu (Joe Greco)
Newsgroups: comp.sys.cbm
Subject: Re: 1350 Non-Proportional Mouse <==> 1350.1 Proportional Mouse
Keywords: Non-Hacker in his first attempt at Hacking a Mouse
Message-ID: <1443@csd4.milw.wisc.edu>
Date: 6 Mar 89 15:09:37 GMT
References: <2924@nunki.usc.edu> <1438@csd4.milw.wisc.edu> <2937@nunki.usc.edu>
Sender: news@csd4.milw.wisc.edu
Reply-To: jgreco@csd4.milw.wisc.edu (Joe Greco)
Organization: Not around here. Totally Unorganized.  A Real Mess.
Lines: 26

In comp.sys.cbm article <2937@nunki.usc.edu>, aliu@nunki.usc.edu (Alejandro Liu) wrote:
[much mouse using light pen IRQ drivel]
]You are missing my point here.  The light pen interrupt is not supposed
]to just active a ML Routine to read the joystick.  It is supposed to be
]used by the Joystick/mouse to tell the computer it finished doing something.
]In the case of the mouse, it will signal the computer that it finished
]travelling a fixed distance in direction x(or y).  So if I move the mouse
]slowly, it will generate less interrupts as if I were moving the mouse
]faster.  The more interrupts, the counters will increase (or decrease)
]faster, thus simulating a proportional mouse.
]
]Some computers, I think, use this method for their mices.

Why not just BUY the 1351?  That would be easier, simpler, and more
compatible.  Not to mention POSSIBLE....

The light pen interrupt isn't really designed to be used by the mouse
or joystick anyways.  THAT is my point:  You can do whatever you can
with the 1350 without using it.

Is there some particular reason you are so set on doing it this way?
--
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