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| <h4 class="subsection">9.9.1 D30V Options</h4> |
| |
| <p><a name="index-options_002c-D30V-777"></a><a name="index-D30V-options-778"></a>The Mitsubishi D30V version of <code>as</code> has a few machine |
| dependent options. |
| |
| <dl> |
| <dt>‘<samp><span class="samp">-O</span></samp>’<dd>The D30V can often execute two sub-instructions in parallel. When this option |
| is used, <code>as</code> will attempt to optimize its output by detecting when |
| instructions can be executed in parallel. |
| |
| <br><dt>‘<samp><span class="samp">-n</span></samp>’<dd>When this option is used, <code>as</code> will issue a warning every |
| time it adds a nop instruction. |
| |
| <br><dt>‘<samp><span class="samp">-N</span></samp>’<dd>When this option is used, <code>as</code> will issue a warning if it |
| needs to insert a nop after a 32-bit multiply before a load or 16-bit |
| multiply instruction. |
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