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76 lines
3.7 KiB
HTML
76 lines
3.7 KiB
HTML
4 years ago
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<title>RL78 Options - Using the GNU Compiler Collection (GCC)</title>
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<meta name="description" content="Using the GNU Compiler Collection (GCC)">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Submodel-Options.html#Submodel-Options" title="Submodel Options">
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<link rel="prev" href="PowerPC-Options.html#PowerPC-Options" title="PowerPC Options">
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<link rel="next" href="RS_002f6000-and-PowerPC-Options.html#RS_002f6000-and-PowerPC-Options" title="RS/6000 and PowerPC Options">
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Copyright (C) 1988-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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</head>
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<body>
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<div class="node">
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<a name="RL78-Options"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="RS_002f6000-and-PowerPC-Options.html#RS_002f6000-and-PowerPC-Options">RS/6000 and PowerPC Options</a>,
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Previous: <a rel="previous" accesskey="p" href="PowerPC-Options.html#PowerPC-Options">PowerPC Options</a>,
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Up: <a rel="up" accesskey="u" href="Submodel-Options.html#Submodel-Options">Submodel Options</a>
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<hr>
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</div>
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<h4 class="subsection">3.17.36 RL78 Options</h4>
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<p><a name="index-RL78-Options-2194"></a>
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<dl>
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<dt><code>-msim</code><dd><a name="index-msim-2195"></a>Links in additional target libraries to support operation within a
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simulator.
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<br><dt><code>-mmul=none</code><dt><code>-mmul=g13</code><dt><code>-mmul=rl78</code><dd><a name="index-mmul-2196"></a>Specifies the type of hardware multiplication support to be used. The
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default is ‘<samp><span class="samp">none</span></samp>’, which uses software multiplication functions.
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The ‘<samp><span class="samp">g13</span></samp>’ option is for the hardware multiply/divide peripheral
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only on the RL78/G13 targets. The ‘<samp><span class="samp">rl78</span></samp>’ option is for the
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standard hardware multiplication defined in the RL78 software manual.
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<br><dt><code>-m64bit-doubles</code><dt><code>-m32bit-doubles</code><dd><a name="index-m64bit_002ddoubles-2197"></a><a name="index-m32bit_002ddoubles-2198"></a>Make the <code>double</code> data type be 64 bits (<samp><span class="option">-m64bit-doubles</span></samp>)
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or 32 bits (<samp><span class="option">-m32bit-doubles</span></samp>) in size. The default is
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<samp><span class="option">-m32bit-doubles</span></samp>.
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</dl>
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</body></html>
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