.DT
trace
FR-MUD's efun help
trace

int trace(int traceflags)
.SP 5
Sets the trace flags and returns the old trace flags.
When tracing is on a lot of information is printed during execution.

The trace bits are
.EP

The trace bits are
.SC 3 5 -8
    1    Trace all function calls to lfuns.
    2    Trace all calls to call_other().
    4    Trace all function returns.
    8    Print arguments at function calls and return values.
    16    Print all executed stack machine instructions (produces a lot of output!).
    32    Enable trace in heart beat functions.
    64    Trace calls to apply.
    128    Show object name in tracing.
.EI
