To use the C compiler contained on this disk copy the compiler
and C80LIB.A to the system disk.  The command line to the
compiler is:
CC input-file {>outputfile} {-Lsymbol} {-C}
where
  input-file - the source file to compile
  outputfile - the assembly output file(default = standard out)
  symbol     - a string to use to start internal labels
  -C indicates that the C source code is to be put in the
     output file as comments.

to reference external variables declare them as 'extern'.
Storage will be allocated for all 'globally' defined variables.

The routine xassm should be used to assemble the output from
the compiler.  xassm is a modified version of ASSM which will
accept up to 8 character label names.