How can I do my own numeric validation?
Add OPTION $$DUMP to the beginning of the program.
This disables error handling if the program abends allowing S0C7 (data checks) and S0CB (zero divide exceptions)
to be captured by the ESPIE/STXIT code. For the indicated program exceptions, the normal error analysis report
is generated. For all other program exceptions the system abends immediately at the problem point.