$STOP compiler directive
The $STOP directive terminates compilation.
The $STOP directive causes the QMBasic compiler to terminate compilation of the current program. It is most likely to be used inside a $IFDEF conditional compilation structure to recognise that the program is inappropriate to the system being compiled.
$STOP Program not applicable to QM
The above example appears in the program in the BP file of the QMSYS account. This program is issued in source form for use in environments other than QM.