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<a name="MIPS-Embedded-1"></a>
<h4 class="subsection">21.3.6 <acronym>MIPS</acronym> Embedded</h4>

<p><small>GDB</small> supports these special commands for <acronym>MIPS</acronym> targets:
</p>
<dl compact="compact">
<dt><code>set mipsfpu double</code></dt>
<dt><code>set mipsfpu single</code></dt>
<dt><code>set mipsfpu none</code></dt>
<dt><code>set mipsfpu auto</code></dt>
<dt><code>show mipsfpu</code></dt>
<dd><a name="index-set-mipsfpu"></a>
<a name="index-show-mipsfpu"></a>
<a name="index-MIPS-remote-floating-point"></a>
<a name="index-floating-point_002c-MIPS-remote"></a>
<p>If your target board does not support the <acronym>MIPS</acronym> floating point
coprocessor, you should use the command &lsquo;<samp>set mipsfpu none</samp>&rsquo; (if you
need this, you may wish to put the command in your <small>GDB</small> init
file).  This tells <small>GDB</small> how to find the return value of
functions which return floating point values.  It also allows
<small>GDB</small> to avoid saving the floating point registers when calling
functions on the board.  If you are using a floating point coprocessor
with only single precision floating point support, as on the <small>R4650</small>
processor, use the command &lsquo;<samp>set mipsfpu single</samp>&rsquo;.  The default
double precision floating point coprocessor may be selected using
&lsquo;<samp>set mipsfpu double</samp>&rsquo;.
</p>
<p>In previous versions the only choices were double precision or no
floating point, so &lsquo;<samp>set mipsfpu on</samp>&rsquo; will select double precision
and &lsquo;<samp>set mipsfpu off</samp>&rsquo; will select no floating point.
</p>
<p>As usual, you can inquire about the <code>mipsfpu</code> variable with
&lsquo;<samp>show mipsfpu</samp>&rsquo;.
</p></dd>
</dl>


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