<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- This file documents the GNU Assembler "as".
Copyright (C) 1991-2019 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".
-->
<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
<head>
<title>NDS32 Options (Using as)</title>
<meta name="description" content="NDS32 Options (Using as)">
<meta name="keywords" content="NDS32 Options (Using as)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link href="index.html#Top" rel="start" title="Top">
<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
<link href="NDS32_002dDependent.html#NDS32_002dDependent" rel="up" title="NDS32-Dependent">
<link href="NDS32-Syntax.html#NDS32-Syntax" rel="next" title="NDS32 Syntax">
<link href="NDS32_002dDependent.html#NDS32_002dDependent" rel="prev" title="NDS32-Dependent">
<style type="text/css">
<!--
a.summary-letter {text-decoration: none}
blockquote.indentedblock {margin-right: 0em}
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
blockquote.smallquotation {font-size: smaller}
div.display {margin-left: 3.2em}
div.example {margin-left: 3.2em}
div.lisp {margin-left: 3.2em}
div.smalldisplay {margin-left: 3.2em}
div.smallexample {margin-left: 3.2em}
div.smalllisp {margin-left: 3.2em}
kbd {font-style: oblique}
pre.display {font-family: inherit}
pre.format {font-family: inherit}
pre.menu-comment {font-family: serif}
pre.menu-preformatted {font-family: serif}
pre.smalldisplay {font-family: inherit; font-size: smaller}
pre.smallexample {font-size: smaller}
pre.smallformat {font-family: inherit; font-size: smaller}
pre.smalllisp {font-size: smaller}
span.nolinebreak {white-space: nowrap}
span.roman {font-family: initial; font-weight: normal}
span.sansserif {font-family: sans-serif; font-weight: normal}
ul.no-bullet {list-style: none}
-->
</style>
</head>
<body lang="en">
<a name="NDS32-Options"></a>
<div class="header">
<p>
Next: <a href="NDS32-Syntax.html#NDS32-Syntax" accesskey="n" rel="next">NDS32 Syntax</a>, Up: <a href="NDS32_002dDependent.html#NDS32_002dDependent" accesskey="u" rel="up">NDS32-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
</div>
<hr>
<a name="NDS32-Options-1"></a>
<h4 class="subsection">9.29.1 NDS32 Options</h4>
<a name="index-NDS32-options"></a>
<a name="index-options-for-NDS32"></a>
<p>The NDS32 configurations of <small>GNU</small> <code>as</code> support these
special options:
</p>
<dl compact="compact">
<dt><code>-O1</code></dt>
<dd><p>Optimize for performance.
</p>
</dd>
<dt><code>-Os</code></dt>
<dd><p>Optimize for space.
</p>
</dd>
<dt><code>-EL</code></dt>
<dd><p>Produce little endian data output.
</p>
</dd>
<dt><code>-EB</code></dt>
<dd><p>Produce little endian data output.
</p>
</dd>
<dt><code>-mpic</code></dt>
<dd><p>Generate PIC.
</p>
</dd>
<dt><code>-mno-fp-as-gp-relax</code></dt>
<dd><p>Suppress fp-as-gp relaxation for this file.
</p>
</dd>
<dt><code>-mb2bb-relax</code></dt>
<dd><p>Back-to-back branch optimization.
</p>
</dd>
<dt><code>-mno-all-relax</code></dt>
<dd><p>Suppress all relaxation for this file.
</p>
</dd>
<dt><code>-march=<arch name></code></dt>
<dd><p>Assemble for architecture <arch name> which could be v3, v3j, v3m, v3f,
v3s, v2, v2j, v2f, v2s.
</p>
</dd>
<dt><code>-mbaseline=<baseline></code></dt>
<dd><p>Assemble for baseline <baseline> which could be v2, v3, v3m.
</p>
</dd>
<dt><code>-mfpu-freg=<var>FREG</var></code></dt>
<dd><p>Specify a FPU configuration.
</p><dl compact="compact">
<dt><code>0 8 SP / 4 DP registers</code></dt>
<dt><code>1 16 SP / 8 DP registers</code></dt>
<dt><code>2 32 SP / 16 DP registers</code></dt>
<dt><code>3 32 SP / 32 DP registers</code></dt>
</dl>
</dd>
<dt><code>-mabi=<var>abi</var></code></dt>
<dd><p>Specify a abi version <abi> could be v1, v2, v2fp, v2fpp.
</p>
</dd>
<dt><code>-m[no-]mac</code></dt>
<dd><p>Enable/Disable Multiply instructions support.
</p>
</dd>
<dt><code>-m[no-]div</code></dt>
<dd><p>Enable/Disable Divide instructions support.
</p>
</dd>
<dt><code>-m[no-]16bit-ext</code></dt>
<dd><p>Enable/Disable 16-bit extension
</p>
</dd>
<dt><code>-m[no-]dx-regs</code></dt>
<dd><p>Enable/Disable d0/d1 registers
</p>
</dd>
<dt><code>-m[no-]perf-ext</code></dt>
<dd><p>Enable/Disable Performance extension
</p>
</dd>
<dt><code>-m[no-]perf2-ext</code></dt>
<dd><p>Enable/Disable Performance extension 2
</p>
</dd>
<dt><code>-m[no-]string-ext</code></dt>
<dd><p>Enable/Disable String extension
</p>
</dd>
<dt><code>-m[no-]reduced-regs</code></dt>
<dd><p>Enable/Disable Reduced Register configuration (GPR16) option
</p>
</dd>
<dt><code>-m[no-]audio-isa-ext</code></dt>
<dd><p>Enable/Disable AUDIO ISA extension
</p>
</dd>
<dt><code>-m[no-]fpu-sp-ext</code></dt>
<dd><p>Enable/Disable FPU SP extension
</p>
</dd>
<dt><code>-m[no-]fpu-dp-ext</code></dt>
<dd><p>Enable/Disable FPU DP extension
</p>
</dd>
<dt><code>-m[no-]fpu-fma</code></dt>
<dd><p>Enable/Disable FPU fused-multiply-add instructions
</p>
</dd>
<dt><code>-mall-ext</code></dt>
<dd><p>Turn on all extensions and instructions support
</p></dd>
</dl>
</body>
</html>