Specialized programming tasks

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Mixing AMODE 31 and AMODE 64 code
You can call 31-bit LE-enabled code from 64-bit LE-enabled code and vice versa. This is limited to FETCHABLE routines and requires designating that such routines are going to run in the opposite AMODE. You must use the ENTRY OPTIONS attributes AMODE31 and AMODE64 to specify this.
Using the PLISAXA and PLISAXB XML parsers
The PLISAXx (x = A or B) built-in subroutines provide basic XML parsing capability, which allows programs to consume inbound XML documents, check them for well-formedness, and react to their contents.
Using the PLISAXC and PLISAXD XML parsers
The PLISAXC and PLISAXD built-in subroutines provide basic XML parsing capability, which allows programs to consume inbound XML documents, check them for well-formedness, and react to their contents.
Using PLIDUMP
This section provides information about dump options and the syntax used to call PLIDUMP, and describes PL/I-specific information included in the dump that can help you debug your routine.
Interrupts and attention processing
Using the Checkpoint/Restart facility
This chapter describes the PL/I Checkpoint/Restart feature, which provides a convenient method of taking checkpoints during the execution of a long-running program in a batch environment.
Using user exits
PL/I provides a number of user exits that you can use to customize the PL/I product to suit your needs.
PL/I descriptors
This chapter describes PL/I parameter passing conventions between PL/I routines at run time.