CStart.r is a direct replacement for the Tandy/Microware CStart.r
module.  It's primary advantage is that it has no built-in limit
on the number of command line arguments it can handle, unlike
the Microware one, which is limited to 30 arguments.  Except for
this change, it should function identically.

7Apr1991 - Fixed problem with data-data and data-code refs - TBKK