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<h5 class="subsubsection">9.1.3.2 Register Names</h5>
<p><a name="index-Alpha-registers-525"></a><a name="index-register-names_002c-Alpha-526"></a>
The 32 integer registers are referred to as <span class="samp">$</span><var>n</var> or
<span class="samp">$r</span><var>n</var>. In addition, registers 15, 28, 29, and 30 may
be referred to by the symbols <span class="samp">$fp</span>, <span class="samp">$at</span>, <span class="samp">$gp</span>,
and <span class="samp">$sp</span> respectively.
<p>The 32 floating-point registers are referred to as <span class="samp">$f</span><var>n</var>.
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