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📁 这是一本关于verilog编程语言的教程,对学习verilog语言有帮助
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<a href="00863.html" target="topic">第三章 数据类型</a></div>
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<a href="#" onmousedown="showPopup(this, 'popup00012');"><img src="seealsolink.png" border="0" alt="" title=""></a> SystemVerilog 3.1a语言参考手册</div>
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3.2 数据类型语法</div>
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<div class="Element13"><div class="Element12" id="code00017"><pre class="Element12">data_type ::=     <span style="color: #008000">// 引用自附录A.2.2.1</span>
    integer_vector_type [signing] {packed_dimension}
  | integer_atom_type [signing]
  | non_integer_type
  | struct_union [<strong><span style="color: #FF0000">packed</span></strong> [signing]] <strong><span style="color: #FF0000">{</span></strong>struct_union_member {struct_union_member}<strong><span style="color: #FF0000">}</span></strong>
        {packed_dimension}
  | <strong><span style="color: #FF0000">enum</span></strong> [enum_base_type] <strong><span style="color: #FF0000">{</span></strong>enum_name_declaration{<strong><span style="color: #FF0000">,</span></strong> enum_name_declaration}<strong><span style="color: #FF0000">}</span></strong>
  | <strong><span style="color: #FF0000">string</span></strong>
  | <strong><span style="color: #FF0000">chandle</span></strong>
  | <strong><span style="color: #FF0000">virtual</span></strong> [<strong><span style="color: #FF0000">interface</span></strong>] interface_identifier
  | [class_scope | package_scope] type_identifier {packed_dimension}
  | class_type
  | <strong><span style="color: #FF0000">event</span></strong>
  | ps_covergroup_identifier

enum_base_type ::=
    integer_atom_type [signing]
  | integer_vector_type [signing] [packed_dimension]
  | type_identifier [packed_dimension]

enum_name_declaration ::=
    enum_identifier [<strong><span style="color: #FF0000">[</span></strong>integral_number[<span style="color: #FF0000">:</span>integral_number]<strong><span style="color: #FF0000">]</span></strong>][<strong><span style="color: #FF0000">=</span></strong>constant_expression]

class_scope ::= class_type <strong><span style="color: #FF0000">::</span></strong>

class_type ::=
    ps_class_identifier [parameter_value_assignment]
        {<strong><span style="color: #FF0000">::</span></strong> class_identifier [parameter_value_assignment]}

integer_type ::= integer_vector_type | integer_atom_type

integer_atom_type ::= <strong><span style="color: #FF0000">byte</span></strong>|<strong><span style="color: #FF0000">shortint</span></strong>|<strong><span style="color: #FF0000">int</span></strong>|<strong><span style="color: #FF0000">longint</span></strong>|<strong><span style="color: #FF0000">integer</span></strong>|<strong><span style="color: #FF0000">time</span></strong>

integer_vector_type ::= <strong><span style="color: #FF0000">bit</span></strong>|<strong><span style="color: #FF0000">logic</span></strong>|<strong><span style="color: #FF0000">reg</span></strong>

non_integer_type ::= <strong><span style="color: #FF0000">shortreal</span></strong>|<strong><span style="color: #FF0000">real</span></strong>|<strong><span style="color: #FF0000">realtime</span></strong>

net_type ::= <strong><span style="color: #FF0000">supply0</span></strong>|<strong><span style="color: #FF0000">supply1</span></strong>|<strong><span style="color: #FF0000">tri</span></strong>|<strong><span style="color: #FF0000">triand</span></strong>|<strong><span style="color: #FF0000">trior</span></strong>|<strong><span style="color: #FF0000">tri0</span></strong>|<strong><span style="color: #FF0000">tri1</span></strong>|<strong><span style="color: #FF0000">wire</span></strong>|<strong><span style="color: #FF0000">wand</span></strong>|<strong><span style="color: #FF0000">wor</span></strong>

signing ::= <strong><span style="color: #FF0000">signed</span></strong>|<strong><span style="color: #FF0000">unsigned</span></strong>

simple_type ::= integer_type | non_integer_type | ps_type_identifier

struct_union_member ::=
    {attribute_instance} data_type_or_void list_of_variable_identifiers<strong><span style="color: #FF0000">;</span></strong>

data_type_or_void ::= data_type | <strong><span style="color: #FF0000">void</span></strong>

struct_union ::= <strong><span style="color: #FF0000">struct</span></strong>|<strong><span style="color: #FF0000">union</span></strong> [<strong><span style="color: #FF0000">tagged</span></strong>]

variable_decl_assignment ::=     <span style="color: #008000">// 引用自附录A.2.4</span>
    variable_identifier variable_dimension[<strong><span style="color: #FF0000">=</span></strong> expression]
  | dynamic_array_variable_identifier<strong><span style="color: #FF0000">[]</span></strong>[<strong><span style="color: #FF0000">=</span></strong> dynamic_array_new]
  | class_variable_identifier[<strong><span style="color: #FF0000">=</span></strong> class_new]
  | [covergroup_variable_identifier] <strong><span style="color: #FF0000">= new</span></strong> [<strong><span style="color: #FF0000">(</span></strong>list_of_arguments<strong><span style="color: #FF0000">)</span></strong>]</pre></div></div>
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<strong>语法 3-1 — 数据类型（摘录自附录A）</strong></p></div>
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