Executing a SubProcedure before #Main

[David & Eileen Keck <bstars@xxxxxxxxxxxxx>]

When would I want to ( and / or how could I ) have a module call a
subprocedure before the main procedure, when a main procedure exists in that
module ?  I found the following while reading through the RPG reference.
Thx - Dave K.

ILE RPG for AS/400 Reference
Chapter 6. Procedures and subprocedures
                     Subprocedure Definition
                        Subprocedure Calculations
"Note also that if the subprocedure is the first procedure to be called in a
module,
the *INZSR of the main procedure (if present) will not be run, although
other
initialization of global data will be done. The *INZSR of the main procedure
will
be run when the main procedure is called."