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Next: <a rel="next" accesskey="n" href="Paired_002dSingle-Built_002din-Functions.html#Paired_002dSingle-Built_002din-Functions">Paired-Single Built-in Functions</a>,
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Up: <a rel="up" accesskey="u" href="MIPS-Loongson-Built_002din-Functions.html#MIPS-Loongson-Built_002din-Functions">MIPS Loongson Built-in Functions</a>
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<h5 class="subsubsection">6.58.14.1 Paired-Single Arithmetic</h5>
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<p>The table below lists the <code>v2sf</code> operations for which hardware
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support exists. <code>a</code>, <code>b</code> and <code>c</code> are <code>v2sf</code>
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values and <code>x</code> is an integral value.
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<p><table summary=""><tr align="left"><td valign="top" width="50%">C code </td><td valign="top" width="50%">MIPS instruction
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>a + b</code> </td><td valign="top" width="50%"><code>add.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>a - b</code> </td><td valign="top" width="50%"><code>sub.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>-a</code> </td><td valign="top" width="50%"><code>neg.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>a * b</code> </td><td valign="top" width="50%"><code>mul.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>a * b + c</code> </td><td valign="top" width="50%"><code>madd.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>a * b - c</code> </td><td valign="top" width="50%"><code>msub.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>-(a * b + c)</code> </td><td valign="top" width="50%"><code>nmadd.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>-(a * b - c)</code> </td><td valign="top" width="50%"><code>nmsub.ps</code>
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<br></td></tr><tr align="left"><td valign="top" width="50%"><code>x ? a : b</code> </td><td valign="top" width="50%"><code>movn.ps</code>/<code>movz.ps</code>
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<br></td></tr></table>
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<p>Note that the multiply-accumulate instructions can be disabled
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using the command-line option <code>-mno-fused-madd</code>.
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