1076_ina.html

basic exemple. Do an ADD of two 4 bits numbers

<ul>
<p>dynamic <a href="./1076_12.HTM#12.5">12.5</a><br>implementation-dependent <a href="./1076_12.HTM#12.3">12.3</a>, <a href="./1076_12.HTM#12.4">12.4</a><br>of configuration declaration <a href="./1076_1.HTM#1.3">1.3</a><br>of processes <a href="./1076_12.HTM#12.1">12.1</a><br>of statement parts <a href="./1076_12.HTM#12.5">12.5</a>
</ul>
<p>Elements
<ul>
<p>associations
<ul>
<p>named <a href="./1076_7.HTM#7.3.2">7.3.2</a><br>positional <a href="./1076_7.HTM#7.3.2">7.3.2</a><br>syntax <code><a href="./1076_7.HTM#7.3.2">7.3.2</a><br></code>where used <a href="./1076_7.HTM#7.3.2">7.3.2</a><code></code>
</ul>
<p>terminology <a href="./1076_3.HTM#3">3</a>
</ul>
<p>Entities
<ul>
<p>associations
<ul>
<p>with architectures <a href="./1076_1.HTM#1.2">1.2</a><br>with components <a href="./1076_5.HTM#5.2.1.1">5.2.1.1</a>
</ul>
<p>overloaded <a href="./1076_10.HTM#10.5">10.5</a>
</ul>
<p>Entities, see also Named entities.<br>Entity aspect
<ul>
<p>default <a href="./1076_5.HTM#5.2.2">5.2.2</a><br>described <a href="./1076_5.HTM#5.2.1.1">5.2.1.1</a><br>syntax <a href="./1076_5.HTM#5.2.1.1">5.2.1.1</a><br>where used <a href="./1076_5.HTM#5.2.1">5.2.1</a>
</ul>
<p>Entity classes
<ul>
<p>syntax <a href="./1076_5.HTM#5.1">5.1</a><br>usage <a href="./1076_4.HTM#4.7">4.7</a><br>where used <a href="./1076_4.HTM#4.6">4.6</a>, <a href="./1076_5.HTM#5.1">5.1</a>
</ul>
<p>Entity declarations
<ul>
<p>as declarative regions <a href="./1076_10.HTM#10.1">10.1</a><br>described <a href="./1076_1.HTM#1">1</a><br>scope of <a href="./1076_10.HTM#10.2">10.2</a><br>syntax <a href="./1076_1.HTM#1.1">1.1</a><br>usage <a href="./1076_5.HTM#5.2.1.1">5.2.1.1</a><br>visibility
<ul>
<p>causing default bindings <a href="./1076_5.HTM#5.2.2">5.2.2</a>, <a href="./1076_12.HTM#12.1">12.1</a>
</ul>
<p>where used <a href="./1076_11.HTM#11.1">11.1</a>
</ul>
<p>Entity declarative part <a href="./1076_1.HTM#1.1">1.1</a>
<ul>
<p>described <a href="./1076_1.HTM#1.1.2">1.1.2</a><br>syntax <a href="./1076_1.HTM#1.1.2">1.1.2</a><br>where used <a href="./1076_1.HTM#1.1">1.1</a>
</ul>
<p>Entity designators
<ul>
<p>restrictions <a href="./1076_5.HTM#5.1">5.1</a><br>syntax <a href="./1076_5.HTM#5.1">5.1</a><br>where used <a href="./1076_5.HTM#5.1">5.1</a>, <a href="./1076_14.HTM#14.1">14.1</a>
</ul>
<p>Entity headers
<ul>
<p>described <a href="./1076_1.HTM#1.1.1">1.1.1</a>, <a href="./1076_1.HTM#1.1.2">1.1.2</a><br>syntax <a href="./1076_1.HTM#1.1.1">1.1.1</a><br>where used <a href="./1076_1.HTM#1.1.1">1.1.1</a>
</ul>
<p>Entity name lists
<ul>
<p>syntax <a href="./1076_5.HTM#5.1">5.1</a><br>where used <a href="./1076_5.HTM#5.1">5.1</a>
</ul>
<p>Entity names
<ul>
<p>usage <a href="./1076_5.HTM#5.2.2">5.2.2</a><br>where used <a href="./1076_1.HTM#1.2">1.2</a>, <a href="./1076_1.HTM#1.3">1.3</a>, <a href="./1076_5.HTM#5.2.1.1">5.2.1.1</a>, <a href="./1076_9.HTM#9.6">9.6</a>
</ul>
<p>Entity specifications
<ul>
<p>elaboration of <a href="./1076_12.HTM#12.3.2.1">12.3.2.1</a><br>syntax <a href="./1076_5.HTM#5.1">5.1</a><br>where used <a href="./1076_5.HTM#5">5</a>
</ul>
<p>Entity statement part
<ul>
<p>described <a href="./1076_1.HTM#1.1.3">1.1.3</a><br>syntax <a href="./1076_1.HTM#1.1.3">1.1.3</a><br>usage <a href="./1076_1.HTM#1.1">1.1</a><br>where used <a href="./1076_1.HTM#1.1">1.1</a>
</ul>
<p>Entity tags
<ul>
<p>restrictions <a href="./1076_5.HTM#5.1">5.1</a><br>syntax <a href="./1076_5.HTM#5.1">5.1</a><br>where used <a href="./1076_5.HTM#5.1">5.1</a><code></code>
</ul>
<p>Enumeration types
<ul>
<p>described <a href="./1076_3.HTM#3.1.1">3.1.1</a><br>elaboration of <a href="./1076_12.HTM#12.3.1.2">12.3.1.2</a><br>predefined <a href="./1076_3.HTM">3.1.1</a>
</ul>
<p>Enumeration types, see also Literals: enumeration.<br>EVENT attribute <a href="./1076_4.HTM#4.3.2">4.3.2</a>, <a href="./1076_7.HTM#7.4.1">7.4.1</a>, <a href="./1076_7.HTM#7.4.2">7.4.2</a>, <a href="./1076_14.HTM#S'EVENT">14.1</a><br>Exit statements
<ul>
<p>described <a href="./1076_8.HTM#8.11">8.11</a><br>syntax <a href="./1076_8.HTM#8.11">8.11</a><br>where used <a href="./1076_8.HTM#8">8</a>
</ul>
<p>Explicit ancestor, see Signals.<br>Exponents
<ul>
<p>syntax <a href="./1076_13.HTM#13.4.1">13.4.1</a><br>where used <a href="./1076_13.HTM#13.4.1">13.4.1</a>
</ul>
<p>Exporting data, see Files: external.<br>Expressions
<ul>
<p>as initial values of variables <a href="./1076_4.HTM#4.3.1.3">4.3.1.3</a><br>associated with signal parameters <a href="./1076_2.HTM#2.1.1.2">2.1.1.2</a><br>Boolean <a href="./1076_8.HTM#8.1">8.1</a><br>containing signal names <a href="./1076_12.HTM#12.3">12.3</a><br>default
<ul>
<p>for interface objects <a href="./1076_4.HTM#4.3.2">4.3.2</a>, <a href="./1076_4.HTM#4.3.2.2">4.3.2.2</a><br>for signal values <a href="./1076_4.HTM#4.3.1.2">4.3.1.2</a>
</ul>
<p>defining the type of <a href="./1076_7.HTM#7.3.4">7.3.4</a><br>described <a href="./1076_7.HTM#7.1">7.1</a><br>guard <a href="./1076_9.HTM#9.1">9.1</a><br>in attribute specifications <a href="./1076_12.HTM#12.3.2.1">12.3.2.1</a><br>initializing a constant <a href="./1076_12.HTM#12.3.1.4">12.3.1.4</a><br>primaries in
<ul>
<p>described <a href="./1076_7.HTM#7.1">7.1</a><br>where used <a href="./1076_7.HTM#7.1">7.1</a><code></code>
</ul>
<p>qualified <a href="./1076_3.HTM#3">3</a>
<ul>
<p>described <a href="./1076_7.HTM#7.3.4">7.3.4</a><br>syntax <a href="./1076_7.HTM#7.3.4">7.3.4</a><br>used as globally static primaries <a href="./1076_7.HTM#7.4.2">7.4.2</a><br>used as locally static primaries <a href="./1076_7.HTM#7.4.1">7.4.1</a><br>where used <a href="./1076_7.HTM#7.1">7.1</a>, <a href="./1076_7.HTM#7.3.6">7.3.6</a>
</ul>
<p>restrictions
<ul>
<p>on type <a href="./1076_4.HTM#4.3.1.1">4.3.1.1</a>, <a href="./1076_4.HTM#4.3.1.2">4.3.1.2</a><br>on type in case statements <a href="./1076_8.HTM#8.8">8.8</a>
</ul>
<p>sequences in <a href="./1076_7.HTM#7.1">7.1</a><br>shift
<ul>
<p>syntax <a href="./1076_7.HTM#7.1">7.1</a><br>where used <a href="./1076_7.HTM#7.1">7.1</a><code></code>
</ul>
<p>simple
<ul>
<p>syntax <a href="./1076_7.HTM#7.1">7.1</a><br>where used <a href="./1076_7.HTM#7.1">7.1</a>, <a href="./1076_7.HTM#7.3.2">7.3.2</a>
</ul>
<p>static
<ul>
<p>definition of globally static <a href="./1076_7.HTM#7.4">7.4</a><br>definition of locally static <code><a href="./1076_7.HTM#7.4">7.4</a><br></code>described <code><a href="./1076_7.HTM#7.4">7.4</a><br></code>in concurrent assertion statements <a href="./1076_9.HTM#9.4">9.4</a><br>where used <a href="./1076_1.HTM#1.3.1">1.3.1</a>, <a href="./1076_4.HTM#4.3.2">4.3.2</a>
</ul>
<p>syntax <a href="./1076_7.HTM#7">7</a><br>time
<ul>
<p>usage <a href="./1076_8.HTM#8.4.1">8.4.1</a><code><br>
</code>where used <a href="./1076_8.HTM#8.1">8.1</a>, <a href="./1076_8.HTM#8.4.1">8.4.1</a>
</ul>
<p>treatment during elaboration <a href="./1076_12.HTM#12.3">12.3</a><br>universal
<ul>
<p>described <a href="./1076_7.HTM#7.5">7.5</a>
</ul>
<p>used as operands <a href="./1076_7.HTM#7.3">7.3</a><br>where used <a href="./1076_4.HTM#4.3.1.1">4.3.1.1</a>, <a href="./1076_4.HTM#4.3.1.2">4.3.1.2</a>, <a href="./1076_4.HTM#4.3.1.3">4.3.1.3</a>, <a href="./1076_5.HTM#5.1">5.1</a>, <a href="./1076_6.HTM#6.4">6.4</a>, <a href="./1076_6.HTM#6.6">6.6</a>, <a href="./1076_7.HTM#7.3.4">7.3.4</a>, <a href="./1076_7.HTM#7.3.5">7.3.5</a>, <a href="./1076_8.HTM#8.2">8.2</a>, <a href="./1076_8.HTM#8.3">8.3</a>, <a href="./1076_8.HTM#8.5">8.5</a>, <a href="./1076_8.HTM#8.8">8.8</a>, <a href="./1076_8.HTM#8.12">8.12</a>, <a href="./1076_9.HTM#9.5.2">9.5.2</a>
</ul>
<p>Expressions, see also Guards.<br>External blocks <a href="./1076_1.HTM#1.3.1">1.3.1</a><br>Factors
<ul>
<p>syntax <a href="./1076_7.HTM#7.1">7.1</a><br>where used <a href="./1076_7.HTM#7.1">7.1</a><code></code>
</ul>
<p>File declarations
<ul>
<p>described <a href="./1076_4.HTM#4.3.1.4">4.3.1.4</a><br>elaboration of <a href="./1076_12.HTM#12.3.1.4">12.3.1.4</a><br>syntax <a href="./1076_4.HTM#4.3.1.4">4.3.1.4</a><br>where used <a href="./1076_1.HTM#1.1.2">1.1.2</a>, <a href="./1076_1.HTM#1.2.1">1.2.1</a>, <a href="./1076_2.HTM#2.2">2.2</a>, <a href="./1076_2.HTM#2.5">2.5</a>, <a href="./1076_2.HTM#2.6">2.6</a>, <a href="./1076_4.HTM#4.3.1.4">4.3.1.4</a>, <a href="./1076_9.HTM#9.2">9.2</a>
</ul>
<p>File types
<ul>
<p>described <a href="./1076_3.HTM#3.4">3.4</a><br>operations implicitly declared for <a href="./1076_3.HTM#3.4.1">3.4.1</a><br>restrictions
<ul>
<p>on attributes <a href="./1076_4.HTM#4.4">4.4</a><br>on signals <a href="./1076_4.HTM#4.3.1.2">4.3.1.2</a><br>on subprogram parameters <a href="./1076_4.HTM#4.3.1.4">4.3.1.4</a>, <a href="./1076_4.HTM#4.3.2">4.3.2</a><br>on subtype indications <a href="./1076_4.HTM#4.2">4.2</a>, <a href="./1076_4.HTM#4.3.2">4.3.2</a>
</ul>
<p>usage <a href="./1076_3.HTM#3">3</a>
<ul>
<p>with external files <a href="./1076_4.HTM#4.3.1.4">4.3.1.4</a>
</ul>
<p>where prohibited <a href="./1076_3.HTM#3.3">3.3</a>, <a href="./1076_4.HTM#4.3.1.1">4.3.1.1</a>
</ul>
<p>Files
<ul>
<p>explicit <a href="./1076_4.HTM#4.3.1.4">4.3.1.4</a><br>external <a href="./1076_4.HTM#4.3.1.4">4.3.1.4</a><br>read operations <a href="./1076_4.HTM#4.3.2">4.3.2</a><br>used as subprogram parameters <a href="./1076_2.HTM#2.1.1.3">2.1.1.3</a><br>used as subprogram- parameters <a href="./1076_2.HTM#2.1.1.3">2.1.1.3</a><br>write operations <a href="./1076_4.HTM#4.3.2">4.3.2</a>
</ul>
<p>Floating point types
<ul>
<p>described <a href="./1076_3.HTM#3.1.4">3.1.4</a><br>elaboration of <a href="./1076_12.HTM#12.3.1.2">12.3.1.2</a><br>portability issues <a href="./1076_AXC.HTM#ANNEXC">Annex C</a><br>predefined <a href="./1076_3.HTM#3.1.4.1">3.1.4.1</a><br>required precision <a href="./1076_3.HTM#3.1.4">3.1.4</a><br>syntax <a href="./1076_3.HTM#3.1.4">3.1.4</a>
</ul>
<p>FOREIGN attribute <a href="./1076_1.HTM#1.1.2">1.1.2</a>, <a href="./1076_1.HTM#1.1.3">1.1.3</a>, <a href="./1076_1.HTM#1.2.1">1.2.1</a>, <a href="./1076_1.HTM#1.2.2">1.2.2</a>, <a href="./1076_2.HTM#2.2">2.2</a>, <a href="./1076_12.HTM#12.4">12.4</a>
<ul>
<p>exclusion from elaboration <a href="./1076_12.HTM#12.3">12.3</a><br>portability issues <a href="./1076_AXC.HTM#ANNEXC">Annex C</a>
</ul>
<p>Foreign subprograms <a href="./1076_2.HTM#2.2">2.2</a><br>Formal designators
<ul>
<p>syntax <a href="./1076_4.HTM#4.3.2.1">4.3.2.1</a><br>where used <a href="./1076_4.HTM#4.3.2.1">4.3.2.1</a>
</ul>
<p>Formal parameters
<ul>
<p>as objects <a href="./1076_4.HTM#4.3">4.3</a><br>described <a href="./1076_2.HTM#2.1.1">2.1.1</a><br>scope of <a href="./1076_10.HTM#10.2">10.2</a><br>syntax <a href="./1076_2.HTM#2.1.1">2.1.1</a><br>type profiles <a href="./1076_2.HTM#2.3">2.3</a>, <a href="./1076_10.HTM#10.5">10.5</a><br>used as constants <a href="./1076_4.HTM#4.3.1.1">4.3.1.1</a><br>where used <a href="./1076_2.HTM#2.1">2.1</a>
</ul>
<p>Formal parameters, see also Subprogram specifications.<code>
</code>Formals
<ul>
<p>in map aspects <a href="./1076_5.HTM#5.2.1.2">5.2.1.2</a>, <br>syntax <code><a href="./1076_4.HTM#4.3.2.2">4.3.2.2</a><br></code>unassociated <code><a href="./1076_5.HTM#5.2.1.2">5.2.1.2</a><br></code>usage <code><a href="./1076_4.HTM#4.3.2.2">4.3.2.2</a><br></code>where used <a href="./1076_4.HTM#4.3.2.2">4.3.2.2</a><code></code>
</ul>
<p>Formals, see also Formal parameters, Generics, Ports.<code>
</code>Format effectors
<ul>
<p>end of line <a href="./1076_13.HTM#13.2">13.2</a><br>syntax <a href="./1076_13.HTM#13.1">13.1</a><br>where used <a href="./1076_13.HTM#13.1">13.1</a><br>
</ul>
<p>Function calls
<ul>
<p>defining parentage of subprograms <a href="./1076_2.HTM#2.2">2.2</a><br>described <a href="./1076_7.HTM#7.3.3">7.3.3</a><br>evaluation of <a href="./1076_7.HTM#7.3.3">7.3.3</a><br>in association lists
<ul>
<p>as actuals <a href="./1076_4.HTM#4.3.2.2">4.3.2.2</a><br>as formals <a href="./1076_4.HTM#4.3.2.2">4.3.2.2</a>
</ul>
<p>restrictions
<ul>
<p>on expanded names <a href="./1076_6.HTM#6.3">6.3</a><br>on groups <a href="./1076_4.HTM#4.7">4.7</a>
</ul>
<p>syntax <a href="./1076_7.HTM#7.3.3">7.3.3</a><br>treatment during elaboration <a href="./1076_12.HTM#12.3">12.3</a><br>usage
<ul>
<p>as globally static primaries <a href="./1076_7.HTM#7.4.2">7.4.2</a><br>as locally static primaries <a href="./1076_7.HTM#7.4.1">7.4.1</a><br>general description <a href="./1076_2.HTM#2">2</a>
</ul>
<p>where used <a href="./1076_6.HTM#6.1">6.1</a>, <a href="./1076_9.HTM#9.2">9.2</a>
</ul>
<p>Functions
<ul>
<p>in signatures <a href="./1076_2.HTM#2.3.2">2.3.2</a><br>invoking execution of <a href="./1076_7.HTM#7.3.3">7.3.3</a><br>object classes for <a href="./1076_2.HTM#2.1.1">2.1.1</a><br>overloaded <a href="./1076_4.HTM#4.2">4.2</a><br>portability issues of impure <a href="./1076_AXC.HTM#ANNEXC">Annex C</a><br>predefined
<ul>