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<title>D30V-Opts - Using as</title>
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This file documents the GNU Assembler "as".
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Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
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2006, 2007 Free Software Foundation, Inc.
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<a name="D30V_002dOpts"></a>Next: <a rel="next" accesskey="n" href="D30V_002dSyntax.html#D30V_002dSyntax">D30V-Syntax</a>,
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Up: <a rel="up" accesskey="u" href="D30V_002dDependent.html#D30V_002dDependent">D30V-Dependent</a>
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<h4 class="subsection">9.9.1 D30V Options</h4>
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<p><a name="index-options_002c-D30V-750"></a><a name="index-D30V-options-751"></a>The Mitsubishi D30V version of <code>as</code> has a few machine
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dependent options.
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<dl>
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<dt><span class="samp">-O</span><dd>The D30V can often execute two sub-instructions in parallel. When this option
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is used, <code>as</code> will attempt to optimize its output by detecting when
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instructions can be executed in parallel.
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<br><dt><span class="samp">-n</span><dd>When this option is used, <code>as</code> will issue a warning every
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time it adds a nop instruction.
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<br><dt><span class="samp">-N</span><dd>When this option is used, <code>as</code> will issue a warning if it
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needs to insert a nop after a 32-bit multiply before a load or 16-bit
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multiply instruction.
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</dl>
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