
watch [on|off]

        The 'watch' command displays the current software stopwatch
        values, with min and max readings for each.  This facility allows
        a programmer to measure the execution time of critical sections
        of code with microsecond resolution.

        This command is supported only on the IBM PC, and the meaning of
        each stopwatch value depends on where the calls have been
        inserted for test purposes; the distribution copy of NOS usually
        has no stopwatch calls.



