Programming Release Notes
5.38 SORT32 Utility
5.38.5 Work File Directories Restriction
V7.3
SORT32 work files must be redirected to directories that allow multiple file
versions that can handle the number of requested work files.
5.39 Timer Queue Entries (TQEs)
Permanent Restriction
Management of Timer Queue Entries was redesigned for OpenVMS Alpha Version
7.3-1 to provide significantly higher performance for systems using many TQEs.
This change is transparent to nonprivileged applications.
Privileged code can no longer manipulate TQEs directly in any form. In
particular, directly accessing pointers in the TQE’s queue header (TQE$L_
TQFL/TQE$L_TQBL) causes an access violation in almost all cases. Privileged
code may continue to use the internal routines exe_std$instimq/exe$instimq and
exe_std$rmvtimq/exe$rmvtimq to enter or remove Timer Queue Entries.
5.40 Watchpoint Utility (Integrity servers Only)
V8.2
The Watchpoint Utility has not been ported to OpenVMS Integrity servers. HP
intends to port this utility in a future release.
5.41 Whole Program Floating-Point Mode (Integrity servers Only)
V8.3
On OpenVMS Alpha, the floating-point rounding behavior, exception behavior,
and precision control are defined at compile time; each module is independently
compiled with its own set of floating-point behaviors. For example, one module
can be compiled with a directive that causes overflow calculations to signal an
overflow exception, and another module can be compiled with a directive that
causes overflow calculations to compute the value InfinityT rather than to signal
an exception. When these two modules are combined and run, the code in the
modules performs overflow calculations that were specified at compile time.
On OpenVMS Integrity servers, the floating-point rounding behavior, exception
behavior, and precision control are defined at run time and are guided by the
concept of whole program floating-point mode. With whole program floating-point
mode, the module that contains the program main entry point (as determined
by the Linker) is the module that defines the default floating-point rounding
behavior, exception behavior, and precision control.
Most programs are not affected by this difference. Refer to the white paper
‘‘OpenVMS Floating-Point Arithmetic on the Intel® Itanium® Architecture’’ for
essential reading. You can link to this document from the following web site:
http://h71000.www7.hp.com/openvms/integrity/resources.html
Programming Release Notes 5–41
