From: markm@vl.com.au   
      
   Knut Roll-Lund wrote:   
      
   > TRISSTICK wasn't analog for TRS-80 either, the circuitry is for decoding   
   > the i/o-port (255 BTW). The TRS-80 Model I/III/4 didn't have a built in   
   > joystick port. I had one like that for the Video Genie. It physically   
   > broke (after quite a lot of brutal use). After that I recreated the i/o   
   > port inside the Genie and put in a 9 pin d-sub so I could use a C64   
   > joysticks instead.   
      
   I suspected as much.   
      
   I remember my father simply wired a D-9 connector to the appropriate   
   points on the keyboard matrix in his Model I unit.   
      
   Ironically, I always found the arrow keys easier to use. That's still   
   true today when running MAME - with the exception of the 8-way games   
   such as Xevious, which I suspect is because of the "cluster" layout on   
   PC keyboards. Try playing "Penetrator" using cluster arrows keys - it's   
   all but impossible!   
      
   [Note to self: patch Penetrator to use a different key for fire, then   
   hook up my X-Arcade stick to one of the TRS-80 emulators - that would   
   really rock!]   
      
   Regards,   
      
   --   
   Mark McDougall, Engineer   
   Virtual Logic Pty Ltd,    
   21-25 King St, Rockdale, 2216   
   Ph: +612-9599-3255 Fax: +612-9599-3266   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)