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<h3 class="section">5.1 Labels</h3>

<p><a name="index-labels-212"></a>A <dfn>label</dfn> is written as a symbol immediately followed by a colon
&lsquo;<samp><span class="samp">:</span></samp>&rsquo;.  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 <samp><span class="command">as</span></samp> also
provides a special directive <code>.label</code> for defining labels more flexibly.

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