devdocs/gcc~13/fr-v-built-in-functions.html


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<div class="subsection-level-extent" id="FR-V-Built-in-Functions"> <div class="nav-panel"> <p> Next: <a href="loongarch-base-built-in-functions" accesskey="n" rel="next">LoongArch Base Built-in Functions</a>, Previous: <a href="bpf-built-in-functions" accesskey="p" rel="prev">BPF Built-in Functions</a>, Up: <a href="target-builtins" accesskey="u" rel="up">Built-in Functions Specific to Particular Target Machines</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="subsection" id="FR-V-Built-in-Functions-1"><span>6.60.13 FR-V Built-in Functions<a class="copiable-link" href="#FR-V-Built-in-Functions-1"> ¶</a></span></h1> <p>GCC provides many FR-V-specific built-in functions. In general, these functions are intended to be compatible with those described by FR-V Family, Softune C/C++ Compiler Manual (V6), Fujitsu Semiconductor. The two exceptions are <code class="code">__MDUNPACKH</code> and <code class="code">__MBTOHE</code>, the GCC forms of which pass 128-bit values by pointer rather than by value. </p> <p>Most of the functions are named after specific FR-V instructions. Such functions are said to be “directly mapped” and are summarized here in tabular form. </p> <ul class="mini-toc"> <li><a href="argument-types" accesskey="1">Argument Types</a></li> <li><a href="directly-mapped-integer-functions" accesskey="2">Directly-Mapped Integer Functions</a></li> <li><a href="directly-mapped-media-functions" accesskey="3">Directly-Mapped Media Functions</a></li> <li><a href="raw-read_002fwrite-functions" accesskey="4">Raw Read/Write Functions</a></li> <li><a href="other-built-in-functions" accesskey="5">Other Built-in Functions</a></li> </ul> </div><div class="_attribution">
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