Rational Developer for System z
COBOL for Windows, Version 7.5, Programming Guide


Image description: argument-passing mechanism for CALLINT SYSTEM DESC

The pointer to the descriptor pointer array follows the arguments of the parameter list. Bytes -8 through -1 of the pointer array are the descriptor-ID. The pointer array contains a 4-byte pointer to each descriptor of the argument in the parameter list.

The first 4 bytes of each descriptor consist of the following 1-byte fields, which are described after the figure: descType, dataType, decsInfl, and descInf2. Bytes 4 through 7 contain length-1. Bytes 8 through 11 contain length-2.

End of image description.


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