HP Integrity NonStop H-Series - Manual (Page 74)

Glossary
TNSVU User’s Guide— 528143-003
Glossary -26
TNS loading
TNS loading. A task performed at process startup time when executing a TNS object file.
This task involves mapping the TNS instructions, procedure entry-point (PEP) table,
and external entry-point (XEP) table from a TNS object file into memory.
TNS mode. The operational environment in which TNS instructions execute by inline
interpretation. See also accelerated mode and TNS/R native mode .
TNS object code. The TNS instructions that result from processing program source code
with a TNS compiler. TNS object code executes on TNS, TNS/R, and TNS/E systems.
TNS Object Code Accelerator (OCA). A program optimization tool that processes a TNS
object file and produces an accelerated file for a TNS/E system. OCA augments a TNS
object file with equivalent Intel® Itanium®
instructions. TNS object code that is
accelerated runs faster on TNS/E systems than TNS object code that is not
accelerated. See also
Accelerator and TNS Object Code Interpreter (OCI) .
TNS Object Code Interpreter (OCI). A program that processes a TNS object file and
emulates TNS instructions on a TNS/E system without preprocessing the object file.
See also
TNS Object Code Accelerator (OCA) .
TNS object file. An object file created by a TNS compiler or the Binder. A TNS object file
contains TNS instructions. TNS object files can be processed by the Accelerator or by
the TNS Object Code Accelerator (OCA) to produce to produce accelerated object
files. A TNS object file can be run on TNS, TNS/R, and TNS/E systems.
TNS procedure label. A 16-bit identifier for an internal or external procedure used by the
TNS object code of a TNS process. The most-significant 7 bits are a TNS code
segment identifier: 2 bits for the TNS code space and 5 bits for the TNS code segment
index. The least-significant 9 bits are an index into the target segment's procedure
entry-point (PEP) table. On a TNS/E system, all shells for calling native library
procedures are segregated within the system code space. When the TNS code space
bits of a TNS procedure label are %B10, the remaining 14 bits are an index into the
system's shell map table, not a segment index and PEP index.
TNS process. A process whose main program object file is a TNS object file, compiled
using a TNS compiler. A TNS process executes in interpreted or accelerated mode
while within itself, when calling a user library, or when calling into TNS system libraries.
A TNS process temporarily executes in native mode when calling into native-compiled
parts of the system library. Object files within a TNS process might be accelerated or
not, with automatic switching between accelerated and interpreted modes on calls and
returns between those parts. Contrast with
TNS/R native process and TNS/E native
process .
TNS shared run-time library (TNS SRL). A shared run-time library (SRL) available to TNS
processes in the Open System Services (OSS) environment. A TNS process can have
only one TNS SRL. A TNS SRL is implemented as a special user library that allows
shared global data.
TNS stack segment. See TNS user data segment .