<html lang="en"> <head> <title>NDS32 Options - Using as</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="Using as"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="NDS32_002dDependent.html#NDS32_002dDependent" title="NDS32-Dependent"> <link rel="next" href="NDS32-Syntax.html#NDS32-Syntax" title="NDS32 Syntax"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This file documents the GNU Assembler "as". Copyright (C) 1991-2015 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled ``GNU Free Documentation License''. --> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="NDS32-Options"></a> <p> Next: <a rel="next" accesskey="n" href="NDS32-Syntax.html#NDS32-Syntax">NDS32 Syntax</a>, Up: <a rel="up" accesskey="u" href="NDS32_002dDependent.html#NDS32_002dDependent">NDS32-Dependent</a> <hr> </div> <h4 class="subsection">9.30.1 NDS32 Options</h4> <p><a name="index-NDS32-options-1659"></a><a name="index-options-for-NDS32-1660"></a>The NDS32 configurations of <span class="sc">gnu</span> <code>as</code> support these special options: <!-- man begin OPTIONS --> <dl> <dt><code>-O1</code><dd>Optimize for performance. <br><dt><code>-Os</code><dd>Optimize for space. <br><dt><code>-EL</code><dd>Produce little endian data output. <br><dt><code>-EB</code><dd>Produce little endian data output. <br><dt><code>-mpic</code><dd>Generate PIC. <br><dt><code>-mno-fp-as-gp-relax</code><dd>Suppress fp-as-gp relaxation for this file. <br><dt><code>-mb2bb-relax</code><dd>Back-to-back branch optimization. <br><dt><code>-mno-all-relax</code><dd>Suppress all relaxation for this file. <br><dt><code>-march=<arch name></code><dd>Assemble for architecture <arch name> which could be v3, v3j, v3m, v3f, v3s, v2, v2j, v2f, v2s. <br><dt><code>-mbaseline=<baseline></code><dd>Assemble for baseline <baseline> which could be v2, v3, v3m. <br><dt><code>-mfpu-freg=</code><var>FREG</var><dd>Specify a FPU configuration. <dl> <dt><code>0 8 SP / 4 DP registers</code><br><dt><code>1 16 SP / 8 DP registers</code><br><dt><code>2 32 SP / 16 DP registers</code><br><dt><code>3 32 SP / 32 DP registers</code><dd></dl> <br><dt><code>-mabi=</code><var>abi</var><dd>Specify a abi version <abi> could be v1, v2, v2fp, v2fpp. <br><dt><code>-m[no-]mac</code><dd>Enable/Disable Multiply instructions support. <br><dt><code>-m[no-]div</code><dd>Enable/Disable Divide instructions support. <br><dt><code>-m[no-]16bit-ext</code><dd>Enable/Disable 16-bit extension <br><dt><code>-m[no-]dx-regs</code><dd>Enable/Disable d0/d1 registers <br><dt><code>-m[no-]perf-ext</code><dd>Enable/Disable Performance extension <br><dt><code>-m[no-]perf2-ext</code><dd>Enable/Disable Performance extension 2 <br><dt><code>-m[no-]string-ext</code><dd>Enable/Disable String extension <br><dt><code>-m[no-]reduced-regs</code><dd>Enable/Disable Reduced Register configuration (GPR16) option <br><dt><code>-m[no-]audio-isa-ext</code><dd>Enable/Disable AUDIO ISA extension <br><dt><code>-m[no-]fpu-sp-ext</code><dd>Enable/Disable FPU SP extension <br><dt><code>-m[no-]fpu-dp-ext</code><dd>Enable/Disable FPU DP extension <br><dt><code>-m[no-]fpu-fma</code><dd>Enable/Disable FPU fused-multiply-add instructions <br><dt><code>-mall-ext</code><dd>Turn on all extensions and instructions support </dl> <!-- man end --> </body></html>