Mudanças entre as edições de "Operadores Aritméticos em VHDL"

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Alguns operadores estão definidos na própria linguagem VHDL.
+
=Implícitos=
 +
Alguns operadores estão definidos implicitamente na linguagem VHDL  
 
<syntaxhighlight lang=vhdl>
 
<syntaxhighlight lang=vhdl>
−
  function "+" (L, R: INTEGER) return INTEGER;
+
  function "+" ( a, b: integer ) return integer;
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  function "+" (L, R: NATURAL) return INTEGER;
+
  function "+" (anonymous: real) return real;
 +
  function "+" (anonymous, anonymous2: real) return real;
 +
  function "+" (anonymous1: TIME) return TIME;
 +
  function "+" (anonymous1, anonymous2: TIME) return TIME;
 
</syntaxhighlight>
 
</syntaxhighlight>
−
 
−
Na linguagem VHDL os operadores aritméticos estão definidos nas bibliotecas.
 
  
 
=[[Numeric std.vhd | numeric_std]]=
 
=[[Numeric std.vhd | numeric_std]]=
 
<syntaxhighlight lang=vhdl>
 
<syntaxhighlight lang=vhdl>
−
 
 
   function "+" (L, R: UNSIGNED) return UNSIGNED;
 
   function "+" (L, R: UNSIGNED) return UNSIGNED;
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  -- Result subtype: UNSIGNED(MAX(L'LENGTH, R'LENGTH)-1 downto 0).
 
−
  -- Result: Adds two UNSIGNED vectors that may be of different lengths.
 
−
 
 
   function "+" (L, R: SIGNED) return SIGNED;
 
   function "+" (L, R: SIGNED) return SIGNED;
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  -- Result subtype: SIGNED(MAX(L'LENGTH, R'LENGTH)-1 downto 0).
 
−
  -- Result: Adds two SIGNED vectors that may be of different lengths.
 
−
 
−
 
 
   function "+" (L: UNSIGNED; R: NATURAL) return UNSIGNED;
 
   function "+" (L: UNSIGNED; R: NATURAL) return UNSIGNED;
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  -- Result subtype: UNSIGNED(L'LENGTH-1 downto 0).
 
−
  -- Result: Adds an UNSIGNED vector, L, with a non-negative INTEGER, R.
 
−
 
 
   function "+" (L: NATURAL; R: UNSIGNED) return UNSIGNED;
 
   function "+" (L: NATURAL; R: UNSIGNED) return UNSIGNED;
−
  -- Result subtype: UNSIGNED(R'LENGTH-1 downto 0).
 
−
  -- Result: Adds a non-negative INTEGER, L, with an UNSIGNED vector, R.
 
−
 
 
   function "+" (L: INTEGER; R: SIGNED) return SIGNED;
 
   function "+" (L: INTEGER; R: SIGNED) return SIGNED;
−
  -- Result subtype: SIGNED(R'LENGTH-1 downto 0).
 
−
  -- Result: Adds an INTEGER, L(may be positive or negative), to a SIGNED vector, R.
 
−
 
 
   function "+" (L: SIGNED; R: INTEGER) return SIGNED;
 
   function "+" (L: SIGNED; R: INTEGER) return SIGNED;
−
  -- Result subtype: SIGNED(L'LENGTH-1 downto 0).
 
−
  -- Result: Adds a SIGNED vector, L, to an INTEGER, R.
 
 
</syntaxhighlight>
 
</syntaxhighlight>

Edição das 21h12min de 10 de maio de 2016

Implícitos

Alguns operadores estão definidos implicitamente na linguagem VHDL 

   function "+" ( a, b: integer ) return integer;
   function "+" (anonymous: real) return real;
   function "+" (anonymous, anonymous2: real) return real;
   function "+" (anonymous1: TIME) return TIME;
   function "+" (anonymous1, anonymous2: TIME) return TIME;

numeric_std

  function "+" (L, R: UNSIGNED) return UNSIGNED;
  function "+" (L, R: SIGNED) return SIGNED;
  function "+" (L: UNSIGNED; R: NATURAL) return UNSIGNED;
  function "+" (L: NATURAL; R: UNSIGNED) return UNSIGNED;
  function "+" (L: INTEGER; R: SIGNED) return SIGNED;
  function "+" (L: SIGNED; R: INTEGER) return SIGNED;
Disponível em “https://wiki.sj.ifsc.edu.br/index.php?title=Operadores_Aritméticos_em_VHDL&oldid=107511”