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<title>NDS32 Options - Using the GNU Compiler Collection (GCC)</title>
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<a name="NDS32-Options"></a>
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Next: <a rel="next" accesskey="n" href="Nios-II-Options.html#Nios-II-Options">Nios II Options</a>,
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Previous: <a rel="previous" accesskey="p" href="MSP430-Options.html#MSP430-Options">MSP430 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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<h4 class="subsection">3.17.30 NDS32 Options</h4>
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<p><a name="index-NDS32-Options-2116"></a>
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These options are defined for NDS32 implementations:
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<dl>
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<dt><code>-mbig-endian</code><dd><a name="index-mbig_002dendian-2117"></a>Generate code in big-endian mode.
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<br><dt><code>-mlittle-endian</code><dd><a name="index-mlittle_002dendian-2118"></a>Generate code in little-endian mode.
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<br><dt><code>-mreduced-regs</code><dd><a name="index-mreduced_002dregs-2119"></a>Use reduced-set registers for register allocation.
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<br><dt><code>-mfull-regs</code><dd><a name="index-mfull_002dregs-2120"></a>Use full-set registers for register allocation.
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<br><dt><code>-mcmov</code><dd><a name="index-mcmov-2121"></a>Generate conditional move instructions.
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<br><dt><code>-mno-cmov</code><dd><a name="index-mno_002dcmov-2122"></a>Do not generate conditional move instructions.
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<br><dt><code>-mperf-ext</code><dd><a name="index-mperf_002dext-2123"></a>Generate performance extension instructions.
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<br><dt><code>-mno-perf-ext</code><dd><a name="index-mno_002dperf_002dext-2124"></a>Do not generate performance extension instructions.
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<br><dt><code>-mv3push</code><dd><a name="index-mv3push-2125"></a>Generate v3 push25/pop25 instructions.
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<br><dt><code>-mno-v3push</code><dd><a name="index-mno_002dv3push-2126"></a>Do not generate v3 push25/pop25 instructions.
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<br><dt><code>-m16-bit</code><dd><a name="index-m16_002dbit-2127"></a>Generate 16-bit instructions.
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<br><dt><code>-mno-16-bit</code><dd><a name="index-mno_002d16_002dbit-2128"></a>Do not generate 16-bit instructions.
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<br><dt><code>-misr-vector-size=</code><var>num</var><dd><a name="index-misr_002dvector_002dsize-2129"></a>Specify the size of each interrupt vector, which must be 4 or 16.
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<br><dt><code>-mcache-block-size=</code><var>num</var><dd><a name="index-mcache_002dblock_002dsize-2130"></a>Specify the size of each cache block,
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which must be a power of 2 between 4 and 512.
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<br><dt><code>-march=</code><var>arch</var><dd><a name="index-march-2131"></a>Specify the name of the target architecture.
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<br><dt><code>-mcmodel=</code><var>code-model</var><dd><a name="index-mcmodel-2132"></a>Set the code model to one of
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<dl>
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<dt>‘<samp><span class="samp">small</span></samp>’<dd>All the data and read-only data segments must be within 512KB addressing space.
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The text segment must be within 16MB addressing space.
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<br><dt>‘<samp><span class="samp">medium</span></samp>’<dd>The data segment must be within 512KB while the read-only data segment can be
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within 4GB addressing space. The text segment should be still within 16MB
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addressing space.
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<br><dt>‘<samp><span class="samp">large</span></samp>’<dd>All the text and data segments can be within 4GB addressing space.
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</dl>
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<br><dt><code>-mctor-dtor</code><dd><a name="index-mctor_002ddtor-2133"></a>Enable constructor/destructor feature.
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<br><dt><code>-mrelax</code><dd><a name="index-mrelax-2134"></a>Guide linker to relax instructions.
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</dl>
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</body></html>
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