Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Compiler and Runtime Migration Guide


Using IGZERRE

You can continue to use IGZERRE to explicitly drive the initialization and termination functions of COBOL. However, you need to be aware of changes in three of the return codes.

On return from IGZERRE, register 15 contains a return code. Table 1 shows the changes when running with Language Environment:

Table 1. Return code changes for IGZERRE
Return code Comments
0 No change
4 Is issued if Language Environment is already initialized (previously issued if VS COBOL II was already initialized)
8 No change
12 Is no longer issued (applied to initialization of a NORES environment only)
16 No change
20 Is no longer issued (applied to use of COBTEST)

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