Glossary

ANSI

American National Standards Institute.

application zone

See AZ.

asynchronous

Mode in which multiple processes share processor time, one executing

execution

while the others, for example, wait for interrupts, as while performing

device I/O or waiting for a clock tick.

AZ (application zone)

Memory allocation section that holds all data in a VI except execution

data.

C string (CStr)

A series of zero or more unsigned characters, terminated by a zero,

used in the C programming language.

CIN source code

Original, uncompiled text code. See object code. See Code Interface

Node.

Code Interface Node

Special block diagram node through which you can link conventional,

text-based code to a VI.

code resource

Resource containing executable machine code. You link code

resources to LabVIEW through a CIN.

concatenated Pascal string

A list of Pascal-type strings concatenated into a single block of

(CPStr)

memory.

CPStr

See concatenated Pascal string (CPStr).

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Using External Code in LabVIEW

data type descriptor

Code that identifies data types, used in data storage and representation.

diagram window

VI window containing the VI’s block diagram code.

dimension

Size and structure attribute of an array.

icon pane

Region in the upper right-hand corner of the front panel and block

diagram windows that displays the VI icon.

IDE

Integrated development environment for developing computer

applications, for example, Visual Basic, Visual C++, and LabVIEW.

inplace

When the input and output data of an operation use the same memory

space.

MB

Megabytes of memory.

MPW

Macintosh Programmer’s Workshop.

MSB

Most significant bit.

object code

Compiled version of source code. Object code is not standalone

because you must load it into LabVIEW to run it.

Using External Code in LabVIEW

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Glossary

P

Pascal string (PStr)

A series of unsigned characters, with the value of the first character

indicating the length of the string. Used in the Pascal programming

language.

portable

Able to compile on any platform that supports LabVIEW.

private data structures

Data structures whose exact format is not described; usually subject to

change.

R

RAM

Random Access Memory.

reentrant execution

Mode in which calls to multiple instances of a subVI can execute in

parallel with distinct and separate data storage.

relocatable

Able to be moved by the memory manager to a new memory location.

S

sink terminal

Terminal that absorbs data. Also called a destination terminal.

shortcut menu

Menu that you access by right-clicking an object. Menu options

pertain to that object specifically.

source code

Original, uncompiled text code.

source terminal

Terminal that emits data.

T

type descriptor

See data type descriptor.

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Using External Code in LabVIEW