The SHOW TRACE command displays information about tracepoints
    that are currently set, including any options such as WHEN or DO
    clauses, /AFTER counts, and so on, and whether the tracepoints
    are deactivated.

    By default, SHOW TRACE displays information about both user-
    defined and predefined tracepoints (if any). This is equivalent
    to entering the SHOW TRACE/USER/PREDEFINED command. User-defined
    tracepoints are set with the SET TRACE command. Predefined
    tracepoints are set automatically when you start the debugger,
    and they depend on the type of program you are debugging.

    If you established a tracepoint using SET TRACE/AFTER:n, the SHOW
    TRACE command displays the current value of the decimal integer
    n, that is, the originally specified integer value minus 1 for
    each time the tracepoint location was reached. (The debugger
    decrements n each time the tracepoint location is reached until
    the value of n is 0, at which time the debugger takes trace
    action.)

    On Alpha systems, the SHOW TRACE command does not display
    individual instructions when the trace is on a particular class
    of instruction (as with SET TRACE/CALL or SET TRACE/RETURN).

    Related commands:

       (ACTIVATE, DEACTIVATE, SET, CANCEL) TRACE