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<h5 class="subsubsection">9.1.3.2 Register Names</h5>
<p><a name="index-Alpha-registers-528"></a><a name="index-register-names_002c-Alpha-529"></a>
The 32 integer registers are referred to as &lsquo;<samp><span class="samp">$</span><var>n</var></samp>&rsquo; or
&lsquo;<samp><span class="samp">$r</span><var>n</var></samp>&rsquo;. In addition, registers 15, 28, 29, and 30 may
be referred to by the symbols &lsquo;<samp><span class="samp">$fp</span></samp>&rsquo;, &lsquo;<samp><span class="samp">$at</span></samp>&rsquo;, &lsquo;<samp><span class="samp">$gp</span></samp>&rsquo;,
and &lsquo;<samp><span class="samp">$sp</span></samp>&rsquo; respectively.
<p>The 32 floating-point registers are referred to as &lsquo;<samp><span class="samp">$f</span><var>n</var></samp>&rsquo;.
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