INTL 3:770/1 3:770/3   
   REPLYADDR ilkerf@geocities.com   
   REPLYTO 3:770/3.0 UUCP   
   MSGID:  256a676c   
   REPLY:  07ca8abd   
   PID: SoupGate-Win32 v1.05   
   A 20-30 years late video:   
      
   https://www.facebook.com/groups/commodoresixtyfour/permalink/10155945728872172/   
      
      
   I've just found it. This was my first modded serial mouse, from 1990s. Its   
   details are somewhere deep in my website (http://cbm.ficicilar.name.tr/). If   
   you adjust the variable resistor correctly, it does not interfere with the   
   keyboard.   
      
   BTW, at the time I wasn't aware of the Amiga mouse protocol; apparently I had   
   reinvented it, but in reverse directions. Basically, both decode the raw data   
   from the photodiodes. For Amiga compatibility you need to switch pins 1 and 2.   
      
   Here, the original document:   
   http://cbm.ficicilar.name.tr/uncorrected/pc64mice.txt   
      
   Related programs and such are in the parent directory.   
      
      
      
   On Thursday, February 19, 1998 at 10:00:00 AM UTC+2, ilker ficicilar wrote:   
   > Hello There;   
   >   
   >  If you interested, the way to plug a PC mouse to C64 via joyport   
   > is explained at:   
   > http://www.physics.metu.edu.tr/~filker/cbm.html   
   >   
   >  I've included a device driver for GEOS also. So that you can use a PC   
   > mouse with GEOS.   
   >   
   >  You can e-mail me, if you have trouble with the method.   
   >   
   > bye,   
   >   
   >   
   > Ilker Ficicilar   
   >   
   > c068214@orca.cc.metu.edu.tr          filker@newton.physics.metu.edu.tr   
   > http://www.physics.metu.edu.tr/~filker/   
   >   
   > ---   
      
   --- SoupGate-Win32 v1.05   
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