Mapped internal ROM pins.

Disclaimer:  I am not responsible for errors!  Whatever you do, it is
at your own risk.  (I don't think there are errors.  Tell me if I am
wrong.  I have used this pinout for the robot and it seems to work
fine.)


     +----\/----+
   NC-          -NC-------------- These pins don't seem to be connected
  a19-          -a20		  to the TI92 board.
  a18-          -a9
   a8-          -a10
   a7-          -a11		* These pins were wired to Vcc ROM
   a6-          -a12		  and GND.  They may not be the chip's
   a5-          -a13		  Vcc and GND pins.
   a4-          -a14
   a3-          -a15
   a2-          -a16
   a1-          -a17
   CE-          -*Vcc
 *GND-          -*GND
 *GND-          -d15
   d0-          -d7
   d8-          -d14
   d1-          -d6
   d9-          -d13
   d2-          -d5
  d10-          -d12
   d3-          -d4
  d11-          -*Vcc
     +----------+

    Source: geocities.com/siliconvalley/peaks/6869

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