devdocs/gcc~13/ft32-options.html


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

<div class="subsection-level-extent" id="FT32-Options"> <div class="nav-panel"> <p> Next: <a href="frv-options" accesskey="n" rel="next">FRV Options</a>, Previous: <a href="fr30-options" accesskey="p" rel="prev">FR30 Options</a>, Up: <a href="submodel-options" accesskey="u" rel="up">Machine-Dependent Options</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="FT32-Options-1"><span>3.19.15 FT32 Options<a class="copiable-link" href="#FT32-Options-1"> ¶</a></span></h1>  <p>These options are defined specifically for the FT32 port. </p> <dl class="table"> <dt>
<span><code class="code">-msim</code><a class="copiable-link" href="#index-msim-3"> ¶</a></span>
</dt> <dd>
<p>Specifies that the program will be run on the simulator. This causes an alternate runtime startup and library to be linked. You must not use this option when generating programs that will run on real hardware; you must provide your own runtime library for whatever I/O functions are needed. </p> </dd> <dt>
<span><code class="code">-mlra</code><a class="copiable-link" href="#index-mlra-1"> ¶</a></span>
</dt> <dd>
<p>Enable Local Register Allocation. This is still experimental for FT32, so by default the compiler uses standard reload. </p> </dd> <dt>
<span><code class="code">-mnodiv</code><a class="copiable-link" href="#index-mnodiv"> ¶</a></span>
</dt> <dd>
<p>Do not use div and mod instructions. </p> </dd> <dt>
<span><code class="code">-mft32b</code><a class="copiable-link" href="#index-mft32b"> ¶</a></span>
</dt> <dd>
<p>Enable use of the extended instructions of the FT32B processor. </p> </dd> <dt>
<span><code class="code">-mcompress</code><a class="copiable-link" href="#index-mcompress"> ¶</a></span>
</dt> <dd>
<p>Compress all code using the Ft32B code compression scheme. </p> </dd> <dt>
<span><code class="code">-mnopm</code><a class="copiable-link" href="#index-mnopm"> ¶</a></span>
</dt> <dd>
<p>Do not generate code that reads program memory. </p> </dd> </dl> </div><div class="_attribution">
  <p class="_attribution-p">
    &copy; 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/FT32-Options.html" class="_attribution-link">https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/FT32-Options.html</a>
  </p>
</div>