I'm not sure what the syntax of this dialect of Tiny C looks like.

Note that CHIP #9 (chip_9.ccvf) and CHIP #10 (chip_10.ccvf) have Tiny C
version 2.2.  Look at those disks for examples of .C source code.

Invoke the Tiny C interpreter by entering fcs then typing

    RUN TINYC

You will then get a prompt,

    TC>

The commands appear to be:

    R <filespec>   -- read a source file
    G              -- go (run)
    X              -- exit to FCS  (ESC-I re-enters Tiny C)

everything else just replies ???