TRON/TROFF
==========

Function
--------

**TRON** and **TROFF** traces the execution of program lines by
displaying their line numbers.

Syntax
------

TRON

TROFF

Example
-------

::

   TRON
   RUN
   [10] [20] [ 30 ]........
   TROFF

Remarks
-------

Line numbers are displayed in square brackets, but apart from this the
program runs normally. The path of the program execution can be
followed. TROFF turns off the trace facility.