COBOL Manual for TNS and TNS/R Programs

Data Division
HP COBOL Manual for TNS and TNS/R Programs—522555-006
7-38
Addressing
Addressing
Items described in the Extended-Storage Section are accessed using 32-bit
addressing. Extended-storage items are allocated in a single extended data segment,
which is managed entirely by the run-time routines. Instructions that involve 32-bit
addresses consume more space in the object file and execute at a slightly slower
speed than the instructions that involve 16-bit addresses.
Size Limits
In Section 20, HP COBOL Limits, see Data in a run unit.
Checkpointing
If your program is compiled with the COBOL85 compiler and the ENV COMMON
directive, the CHECKPOINT statement can process data items declared in the
Extended-Storage Section.
Linkage Section
The Linkage Section describes data passed from a calling program to the program
containing the Linkage Section. No local data space is used for these items because
they refer to existing items in the calling program.
LINKAGE .SECTION
01-data-description
77-data-description
66-or-88
VST096.vsd