<!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) 1991-2020 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 6.5, http://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>ARC Options (Using as)</title>
<meta name="description" content="ARC Options (Using as)">
<meta name="keywords" content="ARC Options (Using as)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<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="ARC_002dDependent.html#ARC_002dDependent" rel="up" title="ARC-Dependent">
<link href="ARC-Syntax.html#ARC-Syntax" rel="next" title="ARC Syntax">
<link href="ARC_002dDependent.html#ARC_002dDependent" rel="prev" title="ARC-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="ARC-Options"></a>
<div class="header">
<p>
Next: <a href="ARC-Syntax.html#ARC-Syntax" accesskey="n" rel="next">ARC Syntax</a>, Up: <a href="ARC_002dDependent.html#ARC_002dDependent" accesskey="u" rel="up">ARC-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="Options-2"></a>
<h4 class="subsection">9.3.1 Options</h4>
<a name="index-ARC-options"></a>
<a name="index-options-for-ARC"></a>
<p>The following options control the type of CPU for which code is
assembled, and generic constraints on the code generated:
</p>
<dl compact="compact">
<dt><code>-mcpu=<var>cpu</var></code></dt>
<dd><a name="index-_002dmcpu_003dcpu-command_002dline-option_002c-ARC"></a>
<p>Set architecture type and register usage for <var>cpu</var>. There are
also shortcut alias options available for backward compatibility and
convenience. Supported values for <var>cpu</var> are
</p>
<dl compact="compact">
<dd><a name="index-mA6-command_002dline-option_002c-ARC"></a>
<a name="index-marc600-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>arc600</code></dt>
<dd><p>Assemble for ARC 600. Aliases: <code>-mA6</code>, <code>-mARC600</code>.
</p>
</dd>
<dt><code>arc600_norm</code></dt>
<dd><p>Assemble for ARC 600 with norm instructions.
</p>
</dd>
<dt><code>arc600_mul64</code></dt>
<dd><p>Assemble for ARC 600 with mul64 instructions.
</p>
</dd>
<dt><code>arc600_mul32x16</code></dt>
<dd><p>Assemble for ARC 600 with mul32x16 instructions.
</p>
</dd>
<dt><code>arc601</code></dt>
<dd><a name="index-mARC601-command_002dline-option_002c-ARC"></a>
<p>Assemble for ARC 601. Alias: <code>-mARC601</code>.
</p>
</dd>
<dt><code>arc601_norm</code></dt>
<dd><p>Assemble for ARC 601 with norm instructions.
</p>
</dd>
<dt><code>arc601_mul64</code></dt>
<dd><p>Assemble for ARC 601 with mul64 instructions.
</p>
</dd>
<dt><code>arc601_mul32x16</code></dt>
<dd><p>Assemble for ARC 601 with mul32x16 instructions.
</p>
</dd>
<dt><code>arc700</code></dt>
<dd><a name="index-mA7-command_002dline-option_002c-ARC"></a>
<a name="index-mARC700-command_002dline-option_002c-ARC"></a>
<p>Assemble for ARC 700. Aliases: <code>-mA7</code>, <code>-mARC700</code>.
</p>
</dd>
<dt><code>arcem</code></dt>
<dd><a name="index-mEM-command_002dline-option_002c-ARC"></a>
<p>Assemble for ARC EM. Aliases: <code>-mEM</code>
</p>
</dd>
<dt><code>em</code></dt>
<dd><p>Assemble for ARC EM, identical as arcem variant.
</p>
</dd>
<dt><code>em4</code></dt>
<dd><p>Assemble for ARC EM with code-density instructions.
</p>
</dd>
<dt><code>em4_dmips</code></dt>
<dd><p>Assemble for ARC EM with code-density instructions.
</p>
</dd>
<dt><code>em4_fpus</code></dt>
<dd><p>Assemble for ARC EM with code-density instructions.
</p>
</dd>
<dt><code>em4_fpuda</code></dt>
<dd><p>Assemble for ARC EM with code-density, and double-precision assist
instructions.
</p>
</dd>
<dt><code>quarkse_em</code></dt>
<dd><p>Assemble for QuarkSE-EM cpu.
</p>
</dd>
<dt><code>archs</code></dt>
<dd><a name="index-mHS-command_002dline-option_002c-ARC"></a>
<p>Assemble for ARC HS. Aliases: <code>-mHS</code>, <code>-mav2hs</code>.
</p>
</dd>
<dt><code>hs</code></dt>
<dd><p>Assemble for ARC HS.
</p>
</dd>
<dt><code>hs34</code></dt>
<dd><p>Assemble for ARC HS34.
</p>
</dd>
<dt><code>hs38</code></dt>
<dd><p>Assemble for ARC HS38.
</p>
</dd>
<dt><code>hs38_linux</code></dt>
<dd><p>Assemble for ARC HS38 with floating point support on.
</p>
</dd>
<dt><code>nps400</code></dt>
<dd><a name="index-mnps400-command_002dline-option_002c-ARC"></a>
<p>Assemble for ARC 700 with NPS-400 extended instructions.
</p>
</dd>
</dl>
<p>Note: the <code>.cpu</code> directive (see <a href="ARC-Directives.html#ARC-Directives">ARC Directives</a>) can
to be used to select a core variant from within assembly code.
</p>
<a name="index-_002dEB-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-EB</code></dt>
<dd><p>This option specifies that the output generated by the assembler should
be marked as being encoded for a big-endian processor.
</p>
<a name="index-_002dEL-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-EL</code></dt>
<dd><p>This option specifies that the output generated by the assembler should
be marked as being encoded for a little-endian processor - this is the
default.
</p>
<a name="index-_002dmcode_002ddensity-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-mcode-density</code></dt>
<dd><p>This option turns on Code Density instructions. Only valid for ARC EM
processors.
</p>
<a name="index-_002dmrelax-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-mrelax</code></dt>
<dd><p>Enable support for assembly-time relaxation. The assembler will
replace a longer version of an instruction with a shorter one,
whenever it is possible.
</p>
<a name="index-_002dmnps400-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-mnps400</code></dt>
<dd><p>Enable support for NPS-400 extended instructions.
</p>
<a name="index-_002dmspfp-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-mspfp</code></dt>
<dd><p>Enable support for single-precision floating point instructions.
</p>
<a name="index-_002dmdpfp-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-mdpfp</code></dt>
<dd><p>Enable support for double-precision floating point instructions.
</p>
<a name="index-_002dmfpuda-command_002dline-option_002c-ARC"></a>
</dd>
<dt><code>-mfpuda</code></dt>
<dd><p>Enable support for double-precision assist floating point instructions.
Only valid for ARC EM processors.
</p>
</dd>
</dl>
<hr>
<div class="header">
<p>
Next: <a href="ARC-Syntax.html#ARC-Syntax" accesskey="n" rel="next">ARC Syntax</a>, Up: <a href="ARC_002dDependent.html#ARC_002dDependent" accesskey="u" rel="up">ARC-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>
</body>
</html>