Input

In addition to the input considerations described in Conditions on Entry to an IPCS Exit Routine, the following special input considerations apply to find exit routines.

Two parameters are passed to the find exit routine:

BLSABDPL
BLSRESSY (Note that ABITS=31 format is always used.)

BLSRESSY contains the symbol in the SYM field and the encoded representation of AREA(name) or STRUCTURE(name) in the DATA statement in the BLSCUSER parmlib member.

If multiple instances of AREA(name) or STRUCTURE(name) exist in a dump, the symbol should be used to determine which instance should be located and associated with the symbol.
IPCS might edit symbols before passing control to a find exit routine. For example, for the ASCB, the following statement appears in an IBM-supplied parmlib member embedded in BLSCECT:
```
SYMBOL PREFIX(ASCB) SUFFIX(COUNT1) STRUCTURE(ASCB)
```
If symbol ASCB00001 is not defined in the symbol table and the subcommand CBFORMAT ASCB1 is entered, the SYMBOL statement above causes IPCS to edit the symbol to ASCB00001 prior to passing control to the find routine for STRUCTURE(ASCB).
If only one instance of AREA(name) or STRUCTURE(name) should exist in a dump, the symbol in BLSRESSY should be ignored.