Access types

described 3.3
designated type 3.3.1
elaboration of 12.3.1.3
mutually dependent 3.3.1
null 3, 3.3, 7.3.1
objects designated by 6.3

dereferencing 6.3

recursive 3.3.1
restrictions

on attributes 4.4
on file types 3.4
on prefixes 6.1
on signals 4.3.1.2
on subtype indications 4.2, 4.3.2

subprogram parameters of 2.1.1.1
usage 3

in index constraints 3.2.1.1

where prohibited 4.3.1.1

ACTIVE attribute. 4.3.2, 7.4.1, 7.4.2, 14.1:S', 14.1
Active drivers 12.6.2, 12.6.4
Active signals 12.6.2, 12.6.3
Actual designators

syntax 4.3.2.2
where used 4.3.2.2

Actual parameter part

syntax 7.3.3
usage

in functions 7.3.3
in procedures 8.6

Actuals

associations

with formal function parameters 7.3.3
with formal procedure parameters 8.6
with formal subprogram parameters 4.3.2.2
with formals of blocks 9.1

in map aspects 5.2.1.2
syntax 4.3.2.2
usage 4.3.2.2
where used 4.3.2.2

Aggregates 3

array 7.3.2.2
defining the type of 7.3.5
described 7.3.2
record 7.3.2.1
restrictions

on array types 7.3.2.2
on globally static primaries 7.4.2
on record types 7.3.2.1

subaggregates 7.3.2.2
syntax 7.3.2
type of 7.3.2
usage

as guarded signals 9.5
as targets of concurrent signal assignment statement 9.5
as targets of signal assignment statements 8.4
as targets of variable assignment statements 8.5

where used 7.3.4, 8.4

Alias declarations

described 4.3.3
elaboration of 12.3.1.5
syntax 4.3.3
where used 1.1.2, 1.2.1, 2.2, 2.5, 2.6, 9.2

Alias designators

syntax 4.3.3
where used 4.3.3

Aliases

referenced in attribute specifications 5.1
usage

as globally static primaries 7.4.2
as locally static primaries 7.4.1

Allocators 3, 3.2.1.1

constraints 7.3.6
deallocation of 3.3.2, 7.3.6
defined 3.3
described 7.3.6
evaluation of 7.3.6, 12.5
syntax 7.3.6
usage 3.3.1

as globally static primaries 7.4.2
to access values of objects 3.3

where used

Architecture bodies

as declarative regions 10.1
default binding rules 5.2.1.1
described 1, 1.2
syntax 1.2
where used 5.2.1, 5.3

Architecture declarative part

described 1.2.1
syntax 1.2.1
where used 1.2

Architecture names

where used 1.3.1, 5.2.2, 9.6, 11.1

Architecture statement part

described 1.2.2
syntax 1.2.2
where used 1.2

Array types

aggregates 7.3.2
bounds 3.2.1.1
closely related 7.3.5
concatenation of 7.2.4
constrained 3.2.1

as formal parameters of constants and variables 2.1.1.1
as formal parameters of signals 2.1.1.2
described 3.2
discrete ranges in 3.2.1.1
implicit file operations for 3.4.1
index ranges of 3.2.1.1

conversions between 7.3.5
denoting elements of 6.5
described 3.2.1
designated by access values 3.2.1.1
direction of 6.6
null arrays 3.2.1.1
predefined 3.2.1.2
restrictions

on file types 3.4

subprogram parameters of 2.1.1.1
syntax 3.2.1
unconstrained 3.2.1

described 3.2.1
elaboration of 12.3.1.2
used in index constraints 3.2.1.1
used in subprograms 3.2.1.1

variables, assignments to 8.5.1
where used 3.2.1

ASCENDING attribute 14.1:T', 14.1:A'
ASCII

format effectors 13.1
non-graphic elements 3.1.1.1

Assertion statements

described 8.2
syntax 8.2
where used 8, 9.4

Assertion statements, see also Concurrent assertion statements.
Assignment

as a basic operation 3
guarded signal 5.3, 9.5, 12.3.2.3
to arrays 3.2.1.1

Association elements

named 4.3.2.2, 4.3.3, 5.2.1.2
positional 4.3.2.2
syntax 4.3.2.2
where used

Association lists

described 4.3.2.2
generic 1.1.1.1, 12.2.2
port 12.2.4
syntax 4.3.2.2
where used 5.2.1.2

Attribute declarations

described 4.4
elaboration of 12.3.1.6
syntax 4.4
where used 1.1.2, 1.2.1, 2.2, 2.5, 9.2

Attribute designators

syntax 6.6
where used 5.1, 6.6

Attribute specifications

described .5.1
elaboration of 12.3.2.1
restrictions

for others and all

restrictions for others and all 5.1
syntax 5.1
where used 1.1.2, 1.2.1, 1.3, 2.2, 2.5, 5.1, 9.2

allowed as primaries 7.1
denoting aliases 6.6
index ranges of 3.2.1.1
of formal parameters 2.1.1
predefined 3, 6.6

described 4.4, 14.1
exclusion from visibility rules 10.3
used as locally static primaries 7.4.1

restrictions

on groups 4.7
on subelements and slices 6.6
on subtype of 12.3.2.1

signal-valued 2.1.1.2
user-defined 4.4, 6.6

described 4.4
usage 5.1

as globally static primaries 7.4.2
as locally static primaries 7.4.1

where used 4.4

Attributes, see also specific names of predefined attributes.
backus naur form (BNF) 0.2.1
Base

syntax 13.4.2
where used 13.4.2

BASE attribute 14.1
Base specifiers

syntax 13.7
where used 13.7, Annex A

Basic operations 3, 7.2.3, 7.3.2, 7.3.4
Bidirectional ports, see Ports, INOUT
Binding indications

containing map aspects 5.2.1.2
default

described 5.2.2

described 5.2.1
elaboration of 12.3.2.2
example 1.3.1
primary 5.2.1
restrictions

for component configurations 5.2
for configuration specifications 5.2

syntax 5.2.1
where used 1.3.1, 5.2

Bindings

deferred 1.3, 5.2.1.1

BIT type 3.1.1.1, 3.2.1.2, 7.2, 7.2.1, 7.2.3
Bit values

syntax 13.7
where used 13.7, Annex A

BIT_VECTOR type 3.2.1.2
Block configurations

applicability 1.3.1
as declarative regions 10.1
described 1.3.1
implicit 1.3.1, 12.1
scope of 10.2
syntax 13.1
usage

to control elaboration of a block statement 12.4.1
when architecture identifier is used 5.2.1.2

visibility within 10.3
where used 1.3, 1.3.1

Block declarative items

syntax 1.2.1
usage 1.2.2
where used 9.1, 9.7

Block declarative part

elaboration of 12.4.1, 12.4.2
syntax 9.1
where used 9.1

Block headers

containing map aspects 5.2.1.2
correspondences

to component declarations 9.6.1
to component instantiation statements 9.6.2
to design entities 9.6.1

elaboration of 12.2, 12.4.1
syntax 9.1
where used 9.1

Block specifications

syntax 1.3.1
where used 1.3.1

Block statement part

elaboration of 12.4.2
syntax 9.1
where used 9.1

Block statements

as declarative regions 10.1
described 9.1
elaboration of 12.1, 12.4.1, 12.4.2
implied 9.6.2, 12.4.2
labels 1.3.1

elaboration of 12.4.2
where used 1.3.1

syntax 9.1
usage 1.3.1, 9.6, 9.6.1
where used 9.1

Blocks

communication to 1.1.1.1
described 1
interconnection via concurrent statements 9
scope of 10.2
usage 9.6, 9.6.1

Boldface 0.2.1
BOOLEAN type 3.1.1.1, 7.2, 7.2.1, 7.2.2, 7.2.3
Buffer ports, see Ports.
Bus signals 2.1.1.2, 2.4, 4.3.2
Case statement alternatives

syntax 8.8
where used 8.8

Case statements

described 8.8
syntax 8.8
usage

as signal transforms 9.5.2
with null statements 8.1.3

where used 8, 9.5

Character set, VHDL 13.1
CHARACTER type 3.2.1.2
Character types, used in case statements 8.8
Characters

apostrophe (') 13.5
backslash (\) 13.3.2
basic

allowable replacements for 180 13.10
syntax 13.1

basic graphic

syntax 13.1
where used 13.1

braces { } 0.2.1
colon (:) 13.10
exclamation mark (!) 13.10
graphic

syntax 13.1
where used 13.3.2, 13.5

lower case

where used 13.1

number sign (#) 13.4.2, 13.10
other special

syntax 13.1
where used 13.1

percent sign (%) 13.10
quotation mark (")

where used 13.6

quotation mark (") 13.10

where used 13.6, 13.7

spaces

syntax 13.1
where prohibited 13.3.1
where used 13.1

special

names of 13.1
syntax 13.1
where used 13.1

square brackets [ ] 0.2.1
used in instance names

separator (:) 14.1

used in path names

leader (:) 14.1
separator (:) 14.1

vertical bar (|) 0.2.1
vertical line (|) 13.10

Characters, see also Operators, Symbols.
Choices

in case statements 8.8
syntax 7.3.2
where used 3.2, 8.8

Comments 13.8
Component configurations

as declarative regions 10.1
binding indications in 5.2.1
containing block configurations 1.3.2
default entity aspect of 5.2.2
described 1.3.2
implicit 1.3.1, 12.1
restrictions

against conflicting configurations 1.3.2

syntax 1.3.2
used to bind component instances to design entities 4.5
visibility rules for 10.3
where used 1.3.1

Component declarations

as declarative regions 10.1
bindings to design entities 5.2.1
described 4.5
elaboration of 12.3.1.7
prohibitions on attributes 5.1
scope of 10.2
syntax 4.5

usage 5.2, 9.6, 9.6.1
where used 1.2.1, 2.5

Component instances

association with configurations 1.3.2
bound

described 1.3
elaboration of 12.3.2.2
to design entities 5.2.1.1

fully bound 1.3.1, 5.2.1.1
index range 3.2.1.1
labels

in blocks 1.3.1

paths to

syntax 14.1
where used 14.1

unbound

defaults for .1.3.2
elaboration of 12.1

with conflicting configurations 1.3.2

Component instantiation statements

containing map aspects 5.2.1.2
default entity aspect of 5.2.2
described 9.6
elaboration of 12.4.3
interfaces of 4.5
referenced in configuration specifications 5.2
syntax 9.6
usage

to instantiate a component 9.6.1
to instantiate a design entity 9.6.2

where used 9

Component names

where used 9.6

Component specifications

elaboration of 12.3.2.2
syntax 5.2
where used 1.3.2, 5.2

Composite types

described 3.2
objects of 4.3, 4.4
restrictions

on file types 3.4

syntax 3.2
usage 3

Concurrent assertion statements

described 9.3
elaboration of 12.4.4
syntax 9.3
where used 1.1.3, 9

Concurrent procedure call statements

described 9.3
syntax 9.3
usage 9.3
where used 1.1.3, 9

Concurrent procedure call statements, see also Procedure call statements.
Concurrent signal assignment statements 8.4

containing delay mechanisms 9.5
described 9.5
elaboration of 12.4.4
execution of 9.5
syntax 9.5
where used 9

Concurrent signal assignment statements, see also Conditional
signal assignments, Selected signal assignments, Signal assignment
statements.
Concurrent statements

described 9
elaboration of 12.4, 12.4.4, 12.5
syntax 9
where used 1.1, 1.2.2, 9.1, 9.7

Condition clauses

described 8.1
syntax 8.1
where used 8.1

Conditional signal assignments

described 9.5.1
syntax 9.5.1
where used 9.5

Conditions

syntax 8.1
where used 8.1, 8.2, 8.7, 8.9, 8.11, 9.5.1, 9.7

Configuration declarations

anonymous 12.1
as declarative regions 10.1
described 1.3
scope of 10.4
syntax 1.3
usage

to control elaboration of a block statement 12.4.1
to define components 9.6

visibility of 1.1.2
where used 11.1

Configuration items

implicit 1.3.1
syntax 1.3.1
where used 1.3.1

Configuration specifications

default entity aspect of 5.2.2
described 5.2
elaboration of 12.3.2.2
implicit 12.1
restrictions

for binding indications 5.2.1
for others and all 5.2.1

syntax 5.2.1
usage

to bind component instances to design entities 1.3, 4.5
to define copies of blocks 9.6

where used 1.2.1

Configurations

described 1
where used 9.6

Constant declarations

described 4.3.1.1
syntax 4.3.1.1
where used 1.1.2, 1.2.1, 2.2, 2.5, 2.6, 4.3.1.1, 9.2

Constants

deferred 2.6, 4.3.1.1
explicitly declared 4.3.1.1
generic 1.1.1.1
in resolution functions 2.4
index ranges of 3.2.1.1
initial values of 12.3.1.4
usage

as generate parameters 9.7
as globally static primaries 7.4.2
as subprogram parameters 2.1.1.1

values of 4.3.1.1

Context clauses

described 11.3
implicit 14.2
syntax 11.3
where used 11.1

Context items

syntax 11.3
where used 11.3

Conversion functions

restrictions in signal associations 4.3.2.2

Deallocation 3.3.2
Declarations

elaboration of 12, 12.3.1
occurring immediately within declarative regions 10.1
of items in a design entity 1
overloaded 10.3, 10.5
scope of 10.3
visibility

by selection 10.3
direct 10.3
hidden 10.3
potential 10.4

Declarative parts, elaboration of 12.3
Declarative regions

described 10.1

Deferred bindings 1.3
Deferred constants 2.6

defined 4.3.1.1

Delay mechanisms

described 8.4
syntax 8.4
where used 8.4, 9.5

DELAYED attribute 2.2, 4.3, 4.3.2, 14.1
Delays 3.1.3.1

inertial 8.4
transport 8.4

Delimiters

defined 13.2
names of 13.2

Design entities

bindings to component instances 1.2.2, 5.2.1, 5.2.1.1, 9.6.1, 9.6.2
bodies of 1.2
declarative items 1.1, 5
defining external blocks 1.3.1
defining subcomponents of 9.6
described 1
interfaces of 1.1, 4.5
library requirements 1.1.3
ports 1.1.1
visibility 1.1.2

Design files

syntax 11.1

Design hierarchies

defined by configurations 5.2.1.1, 12.1
defined by design entities 12.1
described 1
elaboration

conditional or iterative 9.7
described 12.1
of component instances 9.6.1

ellaboration

described 12

portability of ports and generics in root Annex C

Design hierarchies, see also Blocks.
Design methodologies

portability issues Annex C
reusing existing libraries 9.6
structural design 9.6

Design units

described 11.1
order of analysis 11.4
primary

denoting 6.3
syntax 11.1
where used 11.1

reported in assertion violations 8.2
reported in report statements 8.3
secondary

portability issues Annex C
syntax 11.1
where 11.1

specifications related to 5
syntax 11.1
visibility of packages 2.5
where used 11.1

Designators

as a basic operation 3
described 2.2
overloaded 2.3.1
syntax 2.1
where used 2.1, 2.2

Digits

decimal

syntax 13.1
where used 13.1, 13.4, 13.4.1

extended

syntax 13.4.2
where used 13.4.2, 13.7

Direction

of discrete subtype indications 4.2
syntax 3.1
where used 3.1

Disconnection specifications

default

syntax 5.3

described 5.3
elaboration of 12.3.2.3
syntax 5.3
usage

to turn off drivers of guarded signals 4.3.1.2
with concurrent signal assignment statements 9.5

where used 1.1.2, 1.2.1, 2.5

Discrete ranges

bounds of 6.5, 10.5
described 3.2.1.1
direction of 1.3.1, 6.5
static

described 7.4
globally static 7.4.2
locally static 7.4.1

syntax 3.2.1
where used 1.3.1, 3.2.1, 6.5, 7.3.2, 8.9

Discrete types

described 3.1
used in case statements 8.8

Drivers

active 12.6.2, 12.6.4
assignments to 2.1.1.2
associated 12.6.1
constant 1.1.1.2
creation of 12.4.4
described 12.6.1
determined by null transactions 2.4, 12.6.2
in kernel process 12.6
initial values of 12.4.4
of guarded signals 4.3.1.2, 5.3

disconnection of 5.3, 12.3.2.3

of signals 4.3.1.2

DRIVING attribute 7.4.1, 7.4.2, 14.1
DRIVING_VALUE attribute 7.4.1, 7.4.2, 14.1
Elaboration

dynamic 12.5
implementation-dependent 12.3, 12.4
of configuration declaration 1.3
of processes 12.1
of statement parts 12.5

Elements

associations

named 7.3.2
positional 7.3.2
syntax 7.3.2
where used 7.3.2

terminology 3

Entities

associations

with architectures 1.2
with components 5.2.1.1

overloaded 10.5

Entities, see also Named entities.
Entity aspect

default 5.2.2
described 5.2.1.1
syntax 5.2.1.1
where used 5.2.1

Entity classes

syntax 5.1
usage 4.7
where used 4.6, 5.1

Entity declarations

as declarative regions 10.1
described 1
scope of 10.2
syntax 1.1
usage 5.2.1.1
visibility

causing default bindings 5.2.2, 12.1

where used 11.1

Entity declarative part 1.1

described 1.1.2
syntax 1.1.2
where used 1.1

Entity designators

restrictions 5.1
syntax 5.1
where used 5.1, 14.1

Entity headers

described 1.1.1, 1.1.2
syntax 1.1.1
where used 1.1.1

Entity name lists

syntax 5.1
where used 5.1

Entity names

usage 5.2.2
where used 1.2, 1.3, 5.2.1.1, 9.6

Entity specifications

elaboration of 12.3.2.1
syntax 5.1
where used 5

Entity statement part

described 1.1.3
syntax 1.1.3
usage 1.1
where used 1.1

Entity tags

restrictions 5.1
syntax 5.1
where used 5.1

Enumeration types

described 3.1.1
elaboration of 12.3.1.2
predefined 3.1.1

Enumeration types, see also Literals: enumeration.
EVENT attribute 4.3.2, 7.4.1, 7.4.2, 14.1
Exit statements

described 8.11
syntax 8.11
where used 8

Explicit ancestor, see Signals.
Exponents

syntax 13.4.1
where used 13.4.1

Exporting data, see Files: external.
Expressions

as initial values of variables 4.3.1.3
associated with signal parameters 2.1.1.2
Boolean 8.1
containing signal names 12.3
default

for interface objects 4.3.2, 4.3.2.2
for signal values 4.3.1.2

defining the type of 7.3.4
described 7.1
guard 9.1
in attribute specifications 12.3.2.1
initializing a constant 12.3.1.4
primaries in

described 7.1
where used 7.1

qualified 3

described 7.3.4
syntax 7.3.4
used as globally static primaries 7.4.2
used as locally static primaries 7.4.1
where used 7.1, 7.3.6

restrictions

on type 4.3.1.1, 4.3.1.2
on type in case statements 8.8

sequences in 7.1
shift

syntax 7.1
where used 7.1

simple

syntax 7.1
where used 7.1, 7.3.2

static

definition of globally static 7.4
definition of locally static 7.4
described 7.4
in concurrent assertion statements 9.4
where used 1.3.1, 4.3.2

syntax 7
time

usage 8.4.1
where used 8.1, 8.4.1

treatment during elaboration 12.3
universal

described 7.5

used as operands 7.3
where used 4.3.1.1, 4.3.1.2, 4.3.1.3, 5.1, 6.4, 6.6, 7.3.4, 7.3.5, 8.2, 8.3, 8.5, 8.8, 8.12, 9.5.2

Expressions, see also Guards.
External blocks 1.3.1
Factors

syntax 7.1
where used 7.1

File declarations

described 4.3.1.4
elaboration of 12.3.1.4
syntax 4.3.1.4
where used 1.1.2, 1.2.1, 2.2, 2.5, 2.6, 4.3.1.4, 9.2

File types

described 3.4
operations implicitly declared for 3.4.1
restrictions

on attributes 4.4
on signals 4.3.1.2
on subprogram parameters 4.3.1.4, 4.3.2
on subtype indications 4.2, 4.3.2

usage 3

with external files 4.3.1.4

where prohibited 3.3, 4.3.1.1

Files

explicit 4.3.1.4
external 4.3.1.4
read operations 4.3.2
used as subprogram parameters 2.1.1.3
used as subprogram- parameters 2.1.1.3
write operations 4.3.2

Floating point types

described 3.1.4
elaboration of 12.3.1.2
portability issues Annex C
predefined 3.1.4.1
required precision 3.1.4
syntax 3.1.4

FOREIGN attribute 1.1.2, 1.1.3, 1.2.1, 1.2.2, 2.2, 12.4

exclusion from elaboration 12.3
portability issues Annex C

Foreign subprograms 2.2
Formal designators

syntax 4.3.2.1
where used 4.3.2.1

Formal parameters

as objects 4.3
described 2.1.1
scope of 10.2
syntax 2.1.1
type profiles 2.3, 10.5
used as constants 4.3.1.1
where used 2.1

Formal parameters, see also Subprogram specifications. Formals

in map aspects 5.2.1.2,
syntax 4.3.2.2
unassociated 5.2.1.2
usage 4.3.2.2
where used 4.3.2.2

Formals, see also Formal parameters, Generics, Ports. Format effectors

end of line 13.2
syntax 13.1
where used 13.1

Function calls

defining parentage of subprograms 2.2
described 7.3.3
evaluation of 7.3.3
in association lists

as actuals 4.3.2.2
as formals 4.3.2.2

restrictions

on expanded names 6.3
on groups 4.7

syntax 7.3.3
treatment during elaboration 12.3
usage

as globally static primaries 7.4.2
as locally static primaries 7.4.1
general description 2

where used 6.1, 9.2

Functions

in signatures 2.3.2
invoking execution of 7.3.3
object classes for 2.1.1
overloaded 4.2
portability issues of impure Annex C
predefined

NOW 14.1, 14.2

pure 2, 2.2, 2.7, 7.4.2
resolution 2.4, 4.2
returned values 8.12
syntax 2.1
usage 2
where used 4.3.2.2

Functions, see also Return statements.
Generate parameters

as objects 4.3
constants 4.3.1.1, 12.4.2
usage 4.3

as globally static primaries 7.4.2

Generate statements

as declarative regions 10.1
defining internal blocks 1.3.1
described 9.7
elaboration of 12.4.2
labels 1.3.1

elaboration of 12.4.2
where used 1.3.1

syntax 9.7
where used 9

Generation schemes

syntax 9.7
where used 9.7

Generic clauses

elaboration of 12.2.1
syntax 1.1.1
where used 4.5, 9.1

Generic lists

defined 1.1.1
syntax 1.1.1.1
where used 1.1.1

Generic map aspect

default 5.2.1.2
described 5.2.1.2
syntax 5.2.1.2
usage 5.2.1
where used 5.2.1, 9.1, 9.6

Generic map aspects

elaboration of 12.2.2

Generics

constants 1.1.1, 4.3.1.1, 12.2.1
described 1.1.1.1
formal 5.2.2

in binding indications 5.2.1
in block headers 9.1

in top-level design entity 12.1
of unconstrained array types 3.2.1.1
scope of 10.2
where used 4.3.2.2

Group constituents

syntax 4.7
where used 4.7

Group declarations

described 4.6, 4.7
syntax 4.6
usage 4.6
where used 1.1.2, 1.2.1, 1.3, 2.2, 2.5, 2.6, 9.2, 9.2

Group template declarations

described 4.6
syntax 4.6
where used 1.1.2, 1.2.1, 2.2, 2.5, 2.6, 9.2

Group templates 4.6
Guarded signal specifications

described 5.3
elaboration of 12.3.2.3
syntax 5.3
where used 5.3

Guards 4.3.1.2, 9.1, 9.4
HIGH attribute 3.1.4.1, 14.1:T, 14.1:A', 14.1
Homographs 10.3, 11.2
Identifiers 4.1

basic

described 13.3.1
syntax 13.3.1
where used 13.3.1

extended

described 13.3.2
syntax 13.3.2
where used 13.3.2

of named entities 4
referenced within their own declarations 10.3
restrictions 13.9
scope of 10.2
separators required between 13.2
simple names for 0.2.1
syntax 13.3.1
visibility rules for 10.3, 10.4, 10.5
where used 1.1, 1.2, 1.3, 11.2
with overlapping scopes 10.3

Identifiers, see also Names.
IEEE P1164 Standard Annex E
If statements

described 8.7
syntax 8.7
usage 9.5.1
where used 8, 9.5.1

IMAGE attribute 14.1

portability issues Annex C

Importing data, see Files: external.
IN or INOUT ports, see Ports.
Incomplete type declarations 3.3.1
Index constraints

described 3.2.1.1
elaboration of 12.3.1.3
globally static 7.4.2
in access types 3.3
index ranges of array types 3.2.1.1, 6.5
locally static 7.4.1
syntax 3.2.1
usage 7.3.6
where used 3.2.1, 4.2

Index specifications

containing discrete ranges 1.3.1
syntax 1.3.1
where used 1.3.1

Index subtype definitions

syntax 3.2.1
where used 3.2.1

Index subtypes

compatibility with discrete ranges 3.2.1.1
of shift operators 7.2.3

Instance names, syntax of 14.1
INSTANCE_NAME attribute 14.1
Instantiated units

syntax 9.6
where used 9.6

Instantiation lists

syntax 5.2
where used 5.2

INTEGER type 3.1.2, 3.2.1.1
Integer types

described 3.1.2
elaboration of 12.3.1.2
predefined 3.1.2.1
syntax 3.1.2

Integers

based 13.4.2
syntax 13.4.2
where used 13.4.2

Interface constant declarations

described 4.3.2
syntax 4.3.2
usage 4.3.3
where used 4.3.2.1

Interface declarations

described 4.3.2
usage 4.3.1
where used 4.3.2

Interface file declarations

described 4.3.2
syntax 4.3.2
where used 4.3.2.1

Interface lists

described 4.3.2.1
of formal parameters 2.1.1

elaboration of 12.3.1.1

of generics 1.1.1.1
of ports 1.1.1.2
where used 1.1.1.1, 1.1.1.2

Interface objects

defined 4.3.2
in top-level design entity 12.1
index ranges

obtained by association 3.2.1.1
of constrained arrays 3.2.1.1

specifications related to 5
where used 4.5

Interface signal declarations

described 4.3.2
syntax 4.3.2
where used 4.3.2.1

Interface variable declarations

described 4.3.2
syntax 4.3.2
where used 4.3.2.1

Internal blocks 1.3.1
ISO 8859 character set 3.1.1.1, 13.1, Annex E
Italics, meaning of 0.2.1, 4.1, 14.2
Iteration schemes

FOR loops 8.9
syntax 8.9
where used 8.9
WHILE loops 8.9

Labels

block 9.1
bound 5.2
generate

where used 9.7

instantiation

where used 5.2, 9.6

loop

where declared 8.9
where used 8.10, 8.11, 8.12

of concurrent statements 9.1
process

where used 9.2

syntax 9.7
where used 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.12, 9.3, 9.5

LAST_ACTIVE attribute 4.3.2, 7.4.1, 7.4.2, 14.1:S, 14.1:notes
LAST_EVENT attribute 4.3.2, 7.4.1, 7.4.2, 14.1:S, 14.1:notes
LAST_VALUE attribute 4.3.2, 7.4.1, 7.4.2, 14.1:S, 14.1:notes
LEFT attribute 14.1:T, 14.1:A, 14.1:notes
LEFTOF attribute 14.1:T
LENGTH attribute 14,1:A
Letters

lower case 0.2.1

syntax 13.1
where used 13.3.1, 13.4.1

upper case 0.2.2

syntax 13.1
where used 13.1, 13.3.1, 13.4.1

Lexical elements, defined 13.2
Libraries

checks during elaboration 12.3.2.2
design

analysis of 11.1
denoting items in 6.3
description 11.2

resource 11.2
STD 11.2
WORK 11.2
working 11.2

Library clauses

syntax 11.2
where used 11.3

Library indicators

where used 14.1

Library units

effects of changes to 11.3
existence requirements 5.2.1.1
scope of 10.2
syntax 11.1
where used 11.1

Line breaks 13.1
Linkage ports, see Ports.
Literals

abstract

based 13.4.2
decimal 13.4.1
described 13.4
in a physical type definition 3.1.3
separators required between 13.2
where used 3.1.3, 7.3.1

bit string

described 7.3.1, 13.7
syntax 13.7, Annex A
where used 7.3.1

character

in enumeration types 3.1.1
where used 3.1.1

described 13.5
referenced within their own declarations 10.3
scope of 10.2
syntax 13.5
where used 4.3.3, 4.7, 5.1, 6.3
with overlapping scopes 10.3

described 7.3.1
enumeration

overloaded 2.3.2, 3.1.1, 10.5

visibility rules for 10.3

syntax 3.1.1
values of 3.1.1
where used 3.1.1, 7.3.1

integer 3.1.2, 13.4, 13.4.1, 13.4.2
null 7.3.1
numeric

allowed variations in subprograms 2.7
as basic operations 3
described 7.3.1
syntax 7.3.1
where used 7.3.1

physical

syntax 3.1.3
where used 3.1.3, 7.3.1

real 13.4, 13.4.1, 13.4.2
string 3

described 7.3.1, 13.6
syntax 13.6
where used 2.1, 7.3.1

syntax 7.3.1
where used 7.1, 7.4.1

Logical name list 11.2
Loop parameters

as context for overload resolution 10.5
as objects 4.3
constants 4.3.1.1
usage 4.3

Loop parameters, see Parameter specifications: loop. Loop statements

as declarative regions 10.1
described 8.9
execution of 8.9
syntax 8.9
where used 8

Loop statements, see also Next statements, Exit statements.
Loops, avoiding infinite 9.3
LOW attribute 3.1.4.1, 14.1:T', 14.1:A' , 14.1
LRM

exclusions from language definition 0.2.3
intent 0
notes 0.2.3
semantics 0.2.2
structure 0.2
syntax conventions 0.2.1
terminology 0.2, 4.3.1.2

Models, simulation of 12.6

delta cycle 12.6.4
initialization phase 12.6.4
simulation cycle 12.6.4

Modes

defaults for interface declarations 4.3.2
of formal parameters 2.1.1
of interface objects 4.3.2
of ports 1.1.1.2
syntax 4.3.2
where used 4.3.2

Named entities

aliases of 4.3.3, 5.1
attributes of 4.4, 6.6
groupings of 4.7
identifiers of 4
overloaded 5.1
restrictions on globally static primaries 7.4.2
scope of 10.2
specifications of 5.1

Names

allowed as primaries 7.1
allowed variations in subprograms 2.7
ambiguous 6.3, 7.3.3
as a basic operation 3
declared in entities 1.1.2
expanded 6.3
general description 6.1
in declarations 4
in paths 14.1:E'


indexed

described 6.4
syntax 6.4
usage 7.3.3
where used 6.1

locally static 6.1
logical

syntax 11.2
usage 11.2
where used 11.2

of architecture bodies 1.2
of attributes 4.4

described 6.6
syntax 6.6
where used 6.1

of delimiters 13.2
of files 4.3.1.4
of interface declarations 4.3.2.1
of objects 4.3.2.1
of primary units 4.3
of signals 5.3, 6.1
of slices

described 6.5
syntax 6.5
where used 6.1

of special characters 13.1
of variables 6.1
overloaded 10.5
prefixes

described 6.1
of attributes 4.4
of subprograms 10.5
syntax 6.1
where used 6.3, 6.4, 6.5, 6.6

selected

described 6.3
syntax 6.3
where used 6.1, 10.4

simple 0.2.1

described 6.2
syntax 6.2
where used 5.1, 6.1, 6.3

static

defined 6.1

suffixes

syntax 6.3
usage in use clauses 10.4
where used 6.3

syntax of 0.2.1
where used 4.3.3, 7.1, 8.4

Names, see also Named entities, Pathnames
NATURAL subtype 3.2.1.2
Nets

creation of 12
defined 12.6.2

Next statements

described 8.10
syntax 8.10
usage 8.10
where used 8

Non-Object aliases

described 4.3.3.2

Notation, decimal 13.4.1
NOW

predefined function 14.1

Null

default initial values of variables 4.3.1.3
in access types 3, 7.3.1
ranges 3.1
transactions 2.4, 4.3.1.2, 8.4.1
used as a literal 7.3.1
waveform elements 8.4.1

Null statements

described 8.13
syntax 8.13
where used 8, 9.5

Numeric types

closely related 7.3.5
described 3.1
operators

adding 7.2.4
sign 7.2.5

Numeric types, see also Literals: numeric.
Object aliases

described 4.3.3.1

Object declarations

described 4.3.1,4.3.2,4.3.3
designated by access value 3.3
elaboration of 12.3.1.4
of signals 3.2.1.1
of variables 3.2.1.1
syntax 4.3.1
where used 4.3

Objects

aliases of 4.3.3.1
allocation and deallocation 3.3.2
allowed as primaries 7.1
created by allocators 7.3.6
defined 4.3
described 4.3
explicitly declared 4.3.1

aliases of 4.3.3.2

initial values of 12.3.1.4
usage 4.3
when read 4.3.2
when updated 4.3.2

Open

file objects 3.4.1
file parameters 2.1.1.3
in association lists 4.3.2.2
in entity aspects 5.2.1.1
in map aspects 5.2.1.2
ports 1.1.1.2

Operands 7.3

convertible universal 7.3.5

Operations

basic 3, 7.2.3, 7.3.2, 7.3.4
short-circuit 7.2
visibility of predefined 10.3

Operator symbols

referenced within their own declarations 10.3
scope of 10.2
syntax of 7.1
where used 2.1, 4.3.3, 5.1, 6.1, 6.3
with overlapping scopes 10.3

Operators 7.2

absolute (abs) 7.2.7
adding

described 7.2.4
where used 7.1

addition (+) 7.2.4
arithmetic

for integer types 3.1.2
for physical types 3.1.3

binary 2.3.1
concatenation (&) 7.2.4
division (/) 7.2.6
equality (=) 2.3.1, 7.2.2, 8.4.1, 8.8

overloaded 12.6.2

exponentiating (**) 7.2.7
for universal expressions 7.5
identity (+) 2.3.1, 7.2.5
inequality (/=) 7.2.2
logical 7.2.1
miscellaneous 7.2.7
modulus (mod) 7.2.6
multiplication (*) 7.2.6


multiplying

described 7.2.6
where used 7.1

negation (-) 2.3.1, 7.2.5
ordering (<, <=, >, >=) 7.2.2
overloaded 2.3.1,2.3.2
precedence of 7.2, 7.2.5
predefined 3, 7.2


relational

described 7.2.6
where used 7.1

remainder (rem) 7.2.6
rotate left logical (rol) 7.2.3
rotate right logical (ror) 7.2.3


shift

described 7.2.3
index subtypes of 7.2.3
subtype of result 7.2.3
values returned 7.2.3
where used 7.1

shift left arithmetic (sla) 7.2.3
shift left logical (sll) 7.2.3
shift right arithmetic (sra) 7.2.3
shift right logical (srl) 7.2.3
short-circuit 7.3.1
sign operators 7.2.5

where used 7.1

subtraction (-) 7.2.4
unary 2.3.1, 7.2.1, 7.2.5
user-defined 2.3.1

Operators, see also Characters, Symbols. Optional items 0.2.1


Options

syntax 9.5
where used 9.5.1, 9.5.2

Others

in array aggregates 7.3.2.2
in record aggregates 7.3.2.1
where used 7.3.2

OUT ports, see Ports. Overload resolution

context of 10.5
for selected names 6.3
other factors for legality of named entities 10.5

Overloading, see Enumeration literals, Operators, Resolution
functions,Signatures, Subprograms.
Package bodies

containing group declarations 4.7
described 2, 2.6
syntax 2.6
values of deferred constants 4.3.1.1
visibility 2.6
when unnecessary 2.5
where used 11.1

Package declarations

deferred constants 4.3.1.1
denoted by group declarations 4.7
described 2, 2.5
scope of 10.2
syntax 2.5
where used 11.1

Packages

as declarative regions 10.1
denoting items in 6.3
elaboration of 12.1
in instance names 14.1:E'
in path names 14.1:E'
predefined

location in STD library 11.2
STANDARD 14.2
TEXTIO 3.4.1, 14.3


scope of declarations in 2.5
usage 2

Parameter specifications

generate

where used 9.7


loop

elaboration of 12.5
restrictions on 8.9
syntax 8.9
where used 8.9

Parameters

constant 2.1.1.1
file 2.1.1.3
mechanisms for passing 2.4, 4.3.2.2
of functions 7.3.3
of procedures 8.6
signal 2.1.1.2
variable 2.1.1.1

Parent

of subprogram 2.2

Passive statements 1.1.3
Path names, syntax of 14.1:E'
PATH_NAME attribute 7.4.1, 14.1:E'

portability issues Annex C

Physical types

described 3.1.3
elaboration of 12.3.1.2
position numbers of values 3.1.3
predefined 3.1.3.1
syntax 3.1.3
unit names 3.1.3

Physical types, see also Literals: physical. Port clauses

elaboration of 12.2.3
syntax 1.1.1
where used 4.5, 9.1

Port lists

containing interface signals 4.3.2
defined 1.1.1
syntax 1.1.1.2
where used 1.1.1

Port map aspect

default 5.2.1.2, 5.2.2
described 5.2.1.2
elaboration of 12.2.4
syntax 5.2.1.2
usage 5.2.1
where used 5.2.1, 9.1, 9.6

Ports

actual 1.1.1.2
as signal sources 4.3.1.2
associations 1.1.1.2
connected 1.1.1.2
described 1.1.1.2
formal 1.1.1.2, 5.2.2


as objects 4.3
in binding indications 5.2.1
in block headers 9.1


in top-level design entity 12.1
INOUT 1.1.1.2
input 1.1.1.2
linkage 1.1.1.2


portability issues Annex C


of unconstrained array types 3.2.1.1
open 1.1.1.1
output 1.1.1.1
restrictions on mode 1.1.1.2
scope of 10.2
unassociated 1.1.1.1
unconnected 1.1.1.1, 1.1.1.2
where used 4.3.2.2

Ports, see also Interface objects.
POS attribute 3.1.3, 14.1:T'
POSITIVE subtype 3.2.1.2
PRED attribute 14.1:T'
Primaries

globally static 7.4.2
locally static 7.4.1

Primary unit declarations

syntax 3.1.3
where used 3.1.3

Procedure call statements

defining parentage of subprograms 2.2
described 8.6
execution of 8.6
syntax 8.6
usage 2.1, 9.3
where used 8, 9.3

Procedure call statements, see also Concurrent procedure call statements.
Procedure calls

portability issues Annex C

Procedures

execution of 8.12
object classes for 2.1.1
parents of 8.1
persistence of variables in 4.3.1.3
restrictions when invoked by concurrent procedure call
statements 9.3
syntax 2.1
usage 2

Procedures, see also Return statements. Process declarative items

syntax 9.2
where used 9.2

Process declarative part

syntax 9.2
where used 9.2

Process statement part

syntax 9.2
where used 9.2

Process statements

as declarative regions 10.1
described 9.2, 12.6.1
drivers in 2.1.1.2
elaboration of 12.4.4
execution of 9.2, 9.5
labels within 8
syntax 9.2
where used 1.1.3, 9

Processes

communicating via file I/O Annex C
execution of 9.2, 12.6.4
initialization of 12.6.4
interconnection via concurrent statements 9
kernel 12.6
non-postponed 9.2, 12.6.4
passive 9.2
persistence of variables in 4.3.1.3
postponed 8.1, 9.2, 9.4, 9.5, 12.6.4
suspended 8.1

Pulse rejection limits 3.1.3.1
QUIET attribute 2.2, 4.3, 4.3.2, 12.6, 14.1:S', 14.1

updating of signals having 12.6.3, 12.6.4

RANGE attribute 13.9, 14.1:A
Range constraints

bounds

for floating point types 3.1.4
for integer types 3.1.2
for physical types 3.1.3


elaboration of 12.3.1.3
globally static 7.4.2
in subtype indications 3.1
locally static 7.4.1
syntax 3.1
where used 3.1.2, 3.1.3, 3.1.4, 4.1

Ranges

bounds 3.1
globally static 7.4.2
index 3.2.1
locally static 7.4.1
null 3.1
order 3.1
syntax 3.1
undefined 3.2.1
where used 3.1.4.1

Read-only mode, see File types: operations.
REAL type

described 3.1.4.1

REAL type, see also Literals: real.
Record types

aggregates 7.3.2
described 3.2.2
elaboration of 12.3.1.2
implicit file operations for 3.4.1
scope of 10.2
subprogram parameters of 2.1.1.1
syntax 3.2.2
where used 3.2

Records

elements of 6.3
index ranges of array types 3.2.1.1

Relations

syntax 7.1
where used 7.1

Report statements

described 8.3
syntax 8.3
where used 8

Reserved words 0.2.1

described 13.9

Resolution functions

described 2.4
for resolved signals 4.3.1.2
portability issues AnnexC
references to overloaded subprograms 2.3, 10.5
restrictions with allocators 7.3.6
usage 4.2
where used 4.2

Resolution limit 3.1.3.1
Return statements

described 8.12
restrictions 8.12, 10.5
syntax 8.12
where used 8, 8.12

REVERSE_RANGE attribute 14.1:A'
RIGHT attribute 14.1:T', 14.1:A', 14.1
RIGHTOF attribute 14.1:T'
Scalar types

described 3, 3.1, 3.2
implicit file operations for 3.4.1
restrictions

on signals 4.3.1.2


subprogram parameters of 2.1.1.1
used as formal signal parameters 2.1.1.2

Scope

of block configurations 1.3.1
of declarations 4, 10.2
of library clauses 11.2
overlapping 10.3
rules for elaboration 12.3.1

Secondary unit declarations

syntax 3.1.3
where used 3.1.3

Selected signal assignments 2.3.1

described 9.5.2
syntax 9.5.2
where used 9.5

Sensitivity clauses

application of rules for 9.3, 9.5
described 8.1
syntax 8.1
where used 8

Sensitivity lists 4.3.2

restrictions within process statements 9.2
syntax 8.1
where used 8.1, 9.2

Separators 13.2

defined 13.2

Sequence of statements

syntax 8
where used 8.7, 8.8, 8.9

Sequential statements

syntax 8
where used .2.2, 8, 9.2

Sequential statements, see also Elaboration: dynamic, Process statements.
SEVERITY_LEVEL type 8.3

where used 8.3

Shared variable declarations

described 4.3.1.3
portability issues AnnexC
syntax 4.3.1.3
where used 1.1.2, 1.2.1, 2.5, 2.6

Signal assignment statements 4.3.1.2

described 8.4
drivers affected by 8.4.1
drivers associated with 12.6.1
in procedures outside of processes 8.4.1
restrictions on types in 8.4
syntax 8.4
targets of

composite types 8.4.1
scalar types 8.4.1


where used 8, 9.5.1

Signal assignment statements, see also Concurrent signal assignment
statements,Conditional signal assignments, Selected signal assignments.
Signal declarations

described 4.3.1.2
syntax 4.3.1.2
where used 1.1.2

Signal kind

syntax 4.3.1.2
where used 4.3.1.2

Signal lists

syntax 5.3
where used 5.3

Signal transforms

described 9.5.1
where used 9.5, 9.5.1, 9.5.2

Signals

active 12.6.2, 12.6.3
associations

with formal parameters 2.1.1.2
with formal ports 4.3.2.1


basic 12.6.2
bus 2.1.1.2, 2.4, 4.3.2
denoted by concurrent procedure call statements 9.3
drivers of 2.1.1.2, 12.6.1
events on 12.6.2
explicit 2.2, 4.3.1.2, 12.6.4


when updated 12.6.2


GUARD 9.1, 9.3, 9.4, 9.5, 12.6


effect on simulation cycle 12.6.4
when updated 12.6.3


guarded 2.1.1.2, 2.2, 4.3.1.2, 4.3.2, 5.3


elaboration of 12.3.2.3
usage 8.4.1


implicit 2.2, 4.3, 9.1, 12.6.4


when updated 12.6.2, 12.6.3


index ranges of 3.2.1.1
initial values of 4.3.1.2
quiet 12.6.2
registers 12.6.2


when updated 12.6.2


resolved 2.4, 4.2, 4.3.1.2
restrictions within blocks 12.3
sources of 4.3.1.2
terminology 4.3.1.2
unresolved 4.3.1.2, 12.6.2
used as subprogram parameters 2.1.1.2
values

default 4.3.1.2
driving 12.6.2, 12.6.3
effective 12.6.2
in blocks 12.3
propagation of 2.3.1, 12.6.2


when updated 4.3.2
where used 4.3.2.2, 8.1


Signatures

described 2.3.2
syntax 2.3.2
usage 6.6
where used 4.3.3, 5.1, 6.6


Signs, see Operators: sign operators.
Simple expressions, where used 3.1
Simple names, where used 6.6
SIMPLE_NAME attribute 14.1:E'
Simulation cycle, see Models, simulation of.
Slices

null 6.5
of constants 4.3.1.1
of objects 4.3


Specifications

defined 5
elaboration of 12.3.2.3


STABLE attribute 2.2, 4.3, 4.3.2, 12.6, 14.1:S'


updating of signals having 12.6.3


STANDARD package

contents of 14.2
location in STD library 11.2
usage 0.2.2, 2.2, 3, 3.1.1.1, 3.1.3.1, 3.2.1.2, 7.2, 7.5


Statement transforms 9.5
STRING type 3.2.1.2, 4.3.1.4


where used 8.3


String types, see also Literals: string.
Structural designs 9.6
Subaggregates, see Aggregates.
Subelements

of constants 4.3.1.1
of objects 4.3.1
of signals 4.3.1.2
of variables 4.3.1.3
terminology 3
usage 3


Subprogram bodies

containing group declarations 4.7
defined in package 2.6
described 2.2
elaboration of 12.3.1.1
execution 2.2
labels within 8
syntax 2.2
usage 2.1
where used 1.1.2, 1.2.1, 2.2, 2.6, 9.2


Subprogram calls

object classes for 2.1.1.1
recursive 2.1
to overloaded subprograms 2.3, 10.5
usage 2.2


Subprogram declarations

described 2.1, 2.2
elaboration of 12.3.1.1, 12.5
scope of 10.2
syntax 2.1
usage 2.1, 2.2
where used 1.1.2, 1.2.1, 2.2, 2.5, 2.6, 9.2


Subprogram declarative part

syntax 2.2
usage 5
where used 2.2


Subprogram kind

syntax 2.2
usage 2.2
where used 2.2


Subprogram specifications

described 2.2
scope of 10.2
where used 2.2

Subprogram statement part

syntax 2.2
where used 2.2


Subprograms

as declarative regions 10.1
conformance rules 2.7
drivers in 2.1.1.2
foreign 2.2
of unconstrained array types 3.2.1.1
overloaded 2.3, 2.3.2


attributes of 5.1
resolution of 10.5
visibility rules for 10.3


parents of 2.2
usage 2.1


Subtype declarations

described 4.2
elaboration of 12.3.1.3
syntax 4.2
where used 1.1.2, 1.2.1, 2.2, 2.5, 2.6, 9.2


Subtype indications

containing index constraints 3.2.1.1
containing range constraints 3.1
direction 4.2
elaboration of 12.3.1.4, 12.3.1.5, 12.5
of incomplete types 3.3.1
syntax 4.2
where used 3.2.1, 3.3, 4.2, 4.3.1.1, 4.3.1.2, 4.3.1.3, 4.3.1.4, 4.3.2, 4.3.3, 7.3.6


Subtypes

base type of 4.1
bounds 2.1.1.2
checking 8.4.1
conversions 3.2.1.1, 8.12


with array variables 8.5.1


designated 3.3
direction 2.1.1.2
globally static 7.4.2
locally static 7.4.1
of function results 2.1
operations 3
static 7.4
usage 3


SUCC attribute 14.1:T'
Symbols

assignment (:=) 4.3.1.1, 4.3.1.2, 4.3.1.3, 4.3.2
box (<>)

in group template declarations 4.6
in undefined ranges 3.2.1


Symbols, see also Characters, Operators.
Targets

array variables 8.5.1
drivers for 8.4.1
guarded 9.5
of signal assignment statements 8.4
of variable assignment statements 8.5
syntax 8.4
where used 8.4, 8.5, 9.5, 9.5.2


Terms

syntax 7.1
where used 7.1


TEXTIO package

contents of 14.3
location in STD library 11.2
usage 3.4.1


Time resolutions, portability issues AnnexC
TIME type 3.1.3.1, 8.4.1
Timeout clauses

described 8.1
syntax 8.1
where used 8.1


TRANSACTION attribute 2.2, 4.3, 4.3.2, 12.6.1, 14.1:S'


initial value of signals 12.6.4
updating of signals having 12.6.3


Transactions

null 8.4.1


Transactions, see also Drivers
Type conversions

as a basic operation 3
described 7.3.5
implicit 8.4, 8.5, 8.12, 10.5
in association lists

as actuals 4.3.2.2
as formals 4.3.2.2


restrictions

in signal associations 4.3.2.2
on operands 7.3.5


syntax 7.3.5
usage

as globally static primaries 7.4.2
as locally static primaries 7.4.1


where used 7.1


Type declarations

as declarative regions 10.1
described 4.1
elaboration of 12.3.1.2
incomplete 3.3.1
syntax of full 4.1
where used 1.1.2, 1.2.1, 2.2, 2.5, 2.6, 9.2


Type marks

described 4.2
in incomplete type declarations 3.3.1
syntax 4.2
where used 2.3.2, 3.2.1, 4.2, 4.3.2.2, 4.4, 5.3, 7.3.4


Type profiles 2.3, 2.3.2


of enumeration literals 3.1.1


Types

anonymous 3.1.2, 3.1.3, 3.1.4, 4.1, 14.2


universal integer 3.1.2, 3.2.1.1, 7.3.1, 7.3.5, 7.5, 8.8, 13.4, 14.2
universal real 7.3.1, 7.3.5, 7.5, 13.4, 14.2


base type of 3, 4.2
character 3.1.1
closely related 7.3.5
compatibility with index constraints 3.2.1.1
constraints 3
designated 3.3
floating point 7.5
in resolution functions 2.4
in rules for overload resolution 10.5
incomplete 3.3.1
of expressions 7.1
operations 3
portability issues AnnexC
predefined

BIT 14.2
BIT_VECTOR 14.2
BOOLEAN 14.2
CHARACTER 14.2
FILE_OPEN_KIND 14.2
FILE_OPEN_STATUS 14.2
INTEGER 14.2
NATURAL 14.2
POSITIVE 14.2
REAL 14.2
SEVERITY_LEVEL 14.2
STRING 14.2
TIME 14.2


terminology 3


Types, see also names of specific type categories.
Underlines 13.3.1, 13.4.1, 13.7
Universal types, see Types: anonymous. Use clauses

described 10.4
scope of 10.2
syntax 10.4
usage 2.5


with multiple mentions of a library unit 11.3
with standard packages 11.2


where used 1.1.2, 1.2.1, 1.3, 1.3.1, 2.2, 2.5, 2.6, 9.2, 11.3


VAL attribute 3.1.3, 14.1:T'
VALUE attribute 14.1:T'
Values

allowed as primaries 7.1
Conversion between abstract and physical 3.1.3


Variable assignment statements 4.3.1.3


described 8.5
restrictions on types in 8.5
syntax 8.5
where used 8


Variable declarations

described 4.3.1.3
syntax 4.3.1.3
where used 2.2, 4.3.1, 9.2


Variables

default initial values 4.3.1.3
explicit 4.3.1.3
in kernel process 12.6
index ranges of 3.2.1.1
initial values of 4.3.1.3
of access types 3.3, 4.7
used as subprogram parameters 2.1.1.1
where used 4.3.2.2


Variables, see also Shared variable declarations.
Visibility

by selection 10.3
direct 10.3
hidden 10.3
of block configurations 1.3.1
of entity declarations 5.2.2
of entity declarative items 1.1.2
of generic constants 1.1.1
of identifiers 4
of items in package bodies 2.6
of logical names in library clauses 11.2
of overloaded subprograms 2.3
of ports 1.1.1
of predefined operations 10.3
rules

for declarations 10.3
for elaboration 12.3.1
for identifiers 10.3, 10.5
of order in which design units are analyzed 11.4


within block configurations 10.3


Wait statements

described 8.1
implicit 9.2
syntax 8.1
usage

with concurrent procedure call statements 9.3
with concurrent signal assignment statements 9.5


where prohibited 8.1, 9.2
where used 8.1


Wave transforms

syntax 9.5.1
where used 9.5.1, 9.5.2


Waveform elements

evaluation of 8.4.1
null, restrictions on 8.4.1, 9.5
syntax 8.4.1
unaffected 9.5
where used 8.4


Waveforms

conditional

syntax 9.5.1
where used 9.5.1


projected output

described 12.6.2
updating 8.4.1


selected

syntax 9.5.2
where used 9.5.2


syntax 8.4
where used 8.4, 9.5.1, 9.5.2


WAVES standard AnnexE
Write-only mode, see File types: operations