as: s390 Characters

 
 9.40.2 Special Characters
 -------------------------
 
 '#' is the line comment character.
 
    If a '#' appears as the first character of a line then the whole line
 is treated as a comment, but in this case the line could also be a
 logical line number directive (SeeComments) or a preprocessor
 control command (SeePreprocessing).
 
    The ';' character can be used instead of a newline to separate
 statements.