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Setting-Symbols.html 3.7KB

3 年之前
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  15. <title>Setting Symbols (Using as)</title>
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  23. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
  24. <link href="Symbols.html#Symbols" rel="up" title="Symbols">
  25. <link href="Symbol-Names.html#Symbol-Names" rel="next" title="Symbol Names">
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  56. <a name="Setting-Symbols"></a>
  57. <div class="header">
  58. <p>
  59. Next: <a href="Symbol-Names.html#Symbol-Names" accesskey="n" rel="next">Symbol Names</a>, Previous: <a href="Labels.html#Labels" accesskey="p" rel="prev">Labels</a>, Up: <a href="Symbols.html#Symbols" accesskey="u" rel="up">Symbols</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
  60. </div>
  61. <hr>
  62. <a name="Giving-Symbols-Other-Values"></a>
  63. <h3 class="section">5.2 Giving Symbols Other Values</h3>
  64. <a name="index-assigning-values-to-symbols"></a>
  65. <a name="index-symbol-values_002c-assigning"></a>
  66. <p>A symbol can be given an arbitrary value by writing a symbol, followed
  67. by an equals sign &lsquo;<samp>=</samp>&rsquo;, followed by an expression
  68. (see <a href="Expressions.html#Expressions">Expressions</a>). This is equivalent to using the <code>.set</code>
  69. directive. See <a href="Set.html#Set"><code>.set</code></a>. In the same way, using a double
  70. equals sign &lsquo;<samp>=</samp>&rsquo;&lsquo;<samp>=</samp>&rsquo; here represents an equivalent of the
  71. <code>.eqv</code> directive. See <a href="Eqv.html#Eqv"><code>.eqv</code></a>.
  72. </p>
  73. <p>Blackfin does not support symbol assignment with &lsquo;<samp>=</samp>&rsquo;.
  74. </p>
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