NonStop S-Series System Expansion and Reduction Guide

Glossary
G-Series Common Glossary
Glossary-110
three point fall of potential measurement method
three point fall of potential measurement method. The measurement of a grounding
electrode (such as a ground rod) where ground resistance is measured with respect to
two other points. The ratio of the measurements determines the resistance of the
grounding electrode.
TIM. See HP NonStop™ Technical Library (NTL).
time factor (TF). A number assigned to a line, path, or route to indicate its efficiency in
transporting data. The lower the time factor, the more efficient the line, path, or route.
See also surge
.
TLB. See translation lookaside buffer (TLB).
TMF. See HP NonStop™ Transaction Management Facility (TMF).
TNS. HP computers that support the HP NonStop™ Kernel operating system and that are
based on complex instruction-set computing (CISC) technology. TNS processors
implement the TNS instruction set. Contrast with TNS/R
.
TNS code segment index. A value in the range 0 through 31 that indexes a code segment
within the current user code, user library, system code, or system library space. This
value can be encoded in five bits.
TNS code space. One of four addressable collections of TNS object code in a TNS
process. They are User Code (UC), User Library (UL), System Code (SC), and System
Library (SL). UC and UL exist on a per-process basis. SC and SL exist on a per-node
basis.
TNS instructions. Stack-oriented, 16-bit machine instructions defined as part of the TNS
environment. On TNS systems, TNS instructions are implemented by microcode. On
TNS/R systems, TNS instructions are implemented by millicode routines or by
translation to an equivalent sequence of RISC instructions.
TNS library. A single, optional, TNS-compiled loadfile associated with one or more
application loadfiles. If a user library has its own global or static variables, it is called a
TNS shared run-time library (TNS SRL). Otherwise it is called a User Library (UL).
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 language compiler. TNS object code executes on both TNS and TNS/R
systems.