Exception subroutine

Parameter:	EXCPSUB=exception-subroutine-label
Discussion:	If an exception occurs, the program will branch to the subroutine statement-label specified. At that label, the program may contain statements to inquire into the nature of the exception. This exception routine may include a RETURN statement to branch back to the main program (i.e., the exception routine is really a subroutine). For more information, see Exception Handling. Also see EXCP=.