TNS/R Native Application Migration Guide

Glossary
TNS/R Native Application Migration Guide—523745-001
Glossary-3
OSS environment
OSS environment. The NonStop Kernel Open System Services (OSS) API, tools, and
utilities.
process. A program that has been submitted to the operating system for execution. An
instance of execution of a program.
program file. An executable object file. See object file.
pTAL. A machine-independent systems programming language based on TAL. The pTAL
language excludes architecture-specific TAL constructs and includes new constructs
that replace the architecture-specific constructs. Contrast with “Transaction Application
Language (TAL).”
pTAL compiler. An optimizing compiler for the pTAL language.
reduced instruction-set computing (RISC). A processor architecture based on a
relatively small and simple instruction set, a large number of general-purpose registers,
and an optimized instruction pipeline that supports high-performance instruction
execution. Contrast with “complex instruction-set computing (CISC).”
RISC. See reduced instruction-set computing (RISC).
RISC instructions. Register-oriented 32-bit machine instructions that are directly executed
on TNS/R processors. RISC instructions execute only on TNS/R systems, not on TNS
systems. Accelerator-generated RISC instructions are produced by accelerating TNS
object code. Native-compiled RISC instructions are produced by compiling source
code with a TNS/R native compiler. Contrast with “TNS instructions.”
RISC word. An instruction-set-defined unit of memory. A RISC word is 4 bytes (32 bits)
wide, beginning on any 4-byte boundary in memory. Contrast with “TNS word” and
“word.”
shared run-time library (SRL). An object file that the operating system links to a program
file at run time. See also TNS shared run-time library (TNS SRL)
and TNS/R native
shared run-time library (TNS/R native SRL).
SRL. See shared run-time library (SRL).
TAL. See Transaction Application Language (TAL).
TNS. “See NonStop Series (TNS).
TNS C compiler. The C compiler that generates TNS object files. TNS object files can be
processed by the Accelerator to produce accelerated object files. Compare with
“TNS/R native C compiler.”