IBMBOCL*
IBMBOCL is used by compiled code and by the library to open and close PL/I files.
It has four entry points:
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IBMBOCLA - handles an explicit open.
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IBMBOCLB - handles an implicit open.
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IBMBOCLC - handles an explicit close.
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IBMBOCLD - handles an implicit close.
Reference Sources
OS PL/I Resident Library: Program Logic, LY33-6008.