Unit installation

Glossary
Altera Corporation 299
Glossary
Glossary
area marquee In the Graphic or Symbol
Editors, the rectangular boundary
surrounding an area selection, which is
created by dragging Button 1 with the
Selection tool.
In the Hierarchy Display, the rectangular
border that is visible as you drag the mouse
to select an area. The marquee is visible
only while you are dragging the mouse.
area selection A defined rectangular
region that includes one or more adjacent
objects. In the Graphic and Symbol Editors,
this area is contained within a rectangular
border called an area marquee. In the
Waveform Editor, Floorplan Editor, and
Hierarchy Display, all objects within an
area selection are highlighted.
Area selection is the process of selecting
multiple contiguous objects by dragging
Button 1 with the Selection tool. In the
Waveform Editor, such ÒobjectsÓ can
consist of adjacent nodes and groups,
whole waveforms, or intervals on one or
more waveforms. In the Floorplan Editor,
such ÒobjectsÓ can consist of adjacent pins,
nodes, logic cells, or assignment bins. In the
Hierarchy Display, file icons can be
selected.
In the Graphic and Symbol Editors,
symbols, arcs, circles, diagonal lines, and
text blocks must lie completely within the
area marquee to be selected. When an
orthogonal line crosses the marquee, only
the portion within the marquee is selected.
array see group.
ASCII American Standard Code for
Information Interchange. Text editing
software used for any MAX+PLUS II text
file, e.g., Text Design File (.tdf), Library
Mapping File (.lmf), or Vector File (.vec),
must conform to this textual data coding
system.
assignment In AHDL and VHDL,
assignment refers to the transfer of a value
to a symbolic name or group, usually
through a Boolean equation. The value on
the right side of the equation is assigned to
the symbolic name or group on the left.
assignment (resource) see resource
assignment.
Assignment & Configuration File (.acf) An
ASCII file (with the extension .acf) that
stores information about probe, pin,
location, chip, clique, logic option, timing,
connected pin, local routing, and device
assignments, as well as configuration
settings for the Compiler, Simulator, and
Timing Analyzer for an entire project.
The ACF stores information entered with
menu commands in all MAX+PLUS II
applications, as well as pin, location, and
chip assignments entered in the Floorplan
Editor window. You can also edit an ACF
manually in a Text Editor window.
B
back-annotation The process of copying
device and resource assignments made by
the Compiler, which are stored in the Fit
File (.fit), into the Assignment &
Configuration File (.acf) for a project. The
back-annotation process preserves the
current fit in future compilations.
background process An application or
command that can run unattended as you
perform another task and which can
generate its own set of messages in a
Message Processor window. The following
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