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| author | Craig Jennings <c@cjennings.net> | 2024-04-07 13:41:34 -0500 |
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| committer | Craig Jennings <c@cjennings.net> | 2024-04-07 13:41:34 -0500 |
| commit | 754bbf7a25a8dda49b5d08ef0d0443bbf5af0e36 (patch) | |
| tree | f1190704f78f04a2b0b4c977d20fe96a828377f1 /devdocs/gcc~13/paired-single-arithmetic.html | |
new repository
Diffstat (limited to 'devdocs/gcc~13/paired-single-arithmetic.html')
| -rw-r--r-- | devdocs/gcc~13/paired-single-arithmetic.html | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/devdocs/gcc~13/paired-single-arithmetic.html b/devdocs/gcc~13/paired-single-arithmetic.html new file mode 100644 index 00000000..2d4ca99c --- /dev/null +++ b/devdocs/gcc~13/paired-single-arithmetic.html @@ -0,0 +1,39 @@ +<div class="subsubsection-level-extent" id="Paired-Single-Arithmetic"> <div class="nav-panel"> <p> Next: <a href="paired-single-built-in-functions" accesskey="n" rel="next">Paired-Single Built-in Functions</a>, Up: <a href="mips-loongson-built-in-functions" accesskey="u" rel="up">MIPS Loongson Built-in Functions</a> [<a href="index#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="indices" title="Index" rel="index">Index</a>]</p> </div> <h1 class="subsubsection" id="Paired-Single-Arithmetic-1"><span>6.60.17.1 Paired-Single Arithmetic<a class="copiable-link" href="#Paired-Single-Arithmetic-1"> ΒΆ</a></span></h1> <p>The table below lists the <code class="code">v2sf</code> operations for which hardware support exists. <code class="code">a</code>, <code class="code">b</code> and <code class="code">c</code> are <code class="code">v2sf</code> values and <code class="code">x</code> is an integral value. </p> <table class="multitable"> <thead><tr> +<th width="50%">C code</th> +<th width="50%">MIPS instruction</th> +</tr></thead> <tbody> +<tr> +<td width="50%"><code class="code">a + b</code></td> +<td width="50%"><code class="code">add.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">a - b</code></td> +<td width="50%"><code class="code">sub.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">-a</code></td> +<td width="50%"><code class="code">neg.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">a * b</code></td> +<td width="50%"><code class="code">mul.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">a * b + c</code></td> +<td width="50%"><code class="code">madd.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">a * b - c</code></td> +<td width="50%"><code class="code">msub.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">-(a * b + c)</code></td> +<td width="50%"><code class="code">nmadd.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">-(a * b - c)</code></td> +<td width="50%"><code class="code">nmsub.ps</code></td> +</tr> <tr> +<td width="50%"><code class="code">x ? a : b</code></td> +<td width="50%"> +<code class="code">movn.ps</code>/<code class="code">movz.ps</code> +</td> +</tr> </tbody> </table> <p>Note that the multiply-accumulate instructions can be disabled using the command-line option <code class="code">-mno-fused-madd</code>. </p> </div><div class="_attribution"> + <p class="_attribution-p"> + © Free Software Foundation<br>Licensed under the GNU Free Documentation License, Version 1.3.<br> + <a href="https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/Paired-Single-Arithmetic.html" class="_attribution-link">https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/Paired-Single-Arithmetic.html</a> + </p> +</div> |