HZSLPDRD function

Purpose: REXX persistent data read function for the check. This is the interface to the assembler HZSPREAD macro. See HZSPREAD macro — Read Check Persistent Data.

Invocation: CALL HZSLPDRD. HZSLPDRD uses REXX variables to accept input and to return output instead of through a "Call Pgm(Parm)" syntax. Both input and output variables for HZSLPDRD closely resemble the parameters of assembler service HZSPREAD.