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<html lang="en">
<head>
<title>Labels - Using as</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="Using as">
<meta name="generator" content="makeinfo 4.7">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Symbols.html#Symbols" title="Symbols">
<link rel="next" href="Setting-Symbols.html#Setting-Symbols" title="Setting Symbols">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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Permission is granted to copy, distribute and/or modify this document
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<body>
<div class="node">
<p>
<a name="Labels"></a>Next:&nbsp;<a rel="next" accesskey="n" href="Setting-Symbols.html#Setting-Symbols">Setting Symbols</a>,
Up:&nbsp;<a rel="up" accesskey="u" href="Symbols.html#Symbols">Symbols</a>
<hr><br>
</div>
<h3 class="section">5.1 Labels</h3>
<p><a name="index-labels-210"></a>A <dfn>label</dfn> is written as a symbol immediately followed by a colon
<span class="samp">:</span>. The symbol then represents the current value of the
active location counter, and is, for example, a suitable instruction
operand. You are warned if you use the same symbol to represent two
different locations: the first definition overrides any other
definitions.
<p>On the HPPA, the usual form for a label need not be immediately followed by a
colon, but instead must start in column zero. Only one label may be defined on
a single line. To work around this, the HPPA version of <span class="command">as</span> also
provides a special directive <code>.label</code> for defining labels more flexibly.
</body></html>