The compiler directive statements /TITLE, /EJECT, /SPACE, /COPY, and /INCLUDE allow you to specify heading information for the compiler listing, to control the spacing of the compiler listing, and to insert records from other file members during a compile. The conditional compilation directive statements /DEFINE, /UNDEFINE, /IF, /ELSEIF, /ELSE, /ENDIF, and /EOF allow you to select or omit source records. The compiler directive statements must precede any compile-time array or table records, translation records, and alternate collating sequence records (that is, ** records).
Directives can begin in column 7 or later.
All directives can be specified within a
single fixed-form statement, and between any
statements. 
No directive can be specified within a
single free-form calculation statement. 
The /IF, /ELSEIF, /ELSE, and /ENDIF directives can be specified
within a single
free-form control, file, definition, or procedure
statement.
No other directives can be specified within these statements. 
x = y
/title + 5;