EPTRACE Manual

Glossary
EPTRACE Manual—528811-002
Glossary-6
implicit library
implicit library. A library supplied by HP that is available in the read-only and execute-only
globally mapped address space shared by all processes without being specified to the
linker or loader. See also TNS system library.
implied user library. A method of binding TNS object files that have more than 16 code
segments. Segments 16 through 31 are located in the user code (UC) space but are
executed as if they were segments 0 through 15 of the user library (UL) code space.
This method precludes the use of a user library. Binder now supports 32 segments of
UC space concurrently with 32 segments of UL code space, so the implied user library
method is not needed in new or changed TNS applications.
Intel® Itanium® instructions. Register-oriented Itanium instructions that are native to and
directly executed by a TNS/E system. Itanium instructions do not execute on TNS and
TNS/R systems. Contrast with TNS instructions.
TNS Object Code Accelerator (OCA) produces Itanium instructions to accelerate TNS
object code. A TNS/E native compiler produces native-compiled Itanium instructions
when it compiles source code.
Intel® Itanium® instruction region. The region of a TNS object file that contains Itanium
instructions and the tables necessary to execute the instructions in accelerated mode
on a TNS/E system. The Object Code Accelerator (OCA) creates this region and writes
it into the TNS object file. A TNS object file that contains an Itanium instruction region
can execute in accelerated mode on TNS/E systems.
Intel® Itanium® instruction region loading. Mapping the Itanium instructions and any
tables necessary at runtime into memory from the Itanium instruction region of a TNS
object file, performed when deemed necessary by the TNS emulation software on a
TNS/E system.
Intel® Itanium® word. An instruction-set-defined unit of memory. An Itanium word is 4
bytes (32 bits) wide, beginning on any 4-byte boundary in memory. Contrast with TNS
word and word.
interpreted mode. See TNS interpreted mode.
instance. A particular case of a class of items or objects. For example, a process is defined
as one instance of the execution of a program. Multiple processes might be executing
the same program simultaneously. Also, instance data refers to global data of a
program or library. Each process has its own instance of the data.
keyword. A character sequence recognized by a command process.
legacy system. An operating system that is not open but from which applications must be
ported or users transferred.
library. A generic term for a collection of routines useful in many programs. An object code
library can take the form of a linkfile to be physically included into client programs, it
can be an OSS archive file containing several linkable modules, it can be a loadfile, or