183 lines
6.9 KiB
HTML
183 lines
6.9 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the GNU Assembler "as".
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Copyright (C) 1991-2016 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled "GNU Free Documentation License".
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-->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using as: ARC Options</title>
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<meta name="description" content="Using as: ARC Options">
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<meta name="keywords" content="Using as: ARC Options">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="ARC_002dDependent.html#ARC_002dDependent" rel="up" title="ARC-Dependent">
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<link href="ARC-Syntax.html#ARC-Syntax" rel="next" title="ARC Syntax">
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<link href="ARC_002dDependent.html#ARC_002dDependent" rel="prev" title="ARC-Dependent">
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<style type="text/css">
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</style>
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</head>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="ARC-Options"></a>
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<div class="header">
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<p>
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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>
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</div>
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<hr>
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<a name="Options-2"></a>
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<h4 class="subsection">9.3.1 Options</h4>
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<a name="index-ARC-options"></a>
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<a name="index-options-for-ARC"></a>
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<p>The following options control the type of CPU for which code is
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assembled, and generic constraints on the code generated:
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</p>
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<dl compact="compact">
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<dt><code>-mcpu=<var>cpu</var></code></dt>
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<dd><a name="index-_002dmcpu_003dcpu-command-line-option_002c-ARC"></a>
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<p>Set architecture type and register usage for <var>cpu</var>. There are
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also shortcut alias options available for backward compatibility and
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convenience. Supported values for <var>cpu</var> are
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</p>
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<dl compact="compact">
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<dd><a name="index-mA6-command-line-option_002c-ARC"></a>
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<a name="index-marc600-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>arc600</code></dt>
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<dd><p>Assemble for ARC 600. Aliases: <code>-mA6</code>, <code>-mARC600</code>.
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</p>
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</dd>
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<dt><code>arc601</code></dt>
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<dd><a name="index-mARC601-command-line-option_002c-ARC"></a>
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<p>Assemble for ARC 601. Alias: <code>-mARC601</code>.
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</p>
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</dd>
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<dt><code>arc700</code></dt>
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<dd><a name="index-mA7-command-line-option_002c-ARC"></a>
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<a name="index-mARC700-command-line-option_002c-ARC"></a>
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<p>Assemble for ARC 700. Aliases: <code>-mA7</code>, <code>-mARC700</code>.
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</p>
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</dd>
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<dt><code>arcem</code></dt>
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<dd><a name="index-mEM-command-line-option_002c-ARC"></a>
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<p>Assemble for ARC EM. Aliases: <code>-mEM</code>
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</p>
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</dd>
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<dt><code>archs</code></dt>
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<dd><a name="index-mHS-command-line-option_002c-ARC"></a>
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<p>Assemble for ARC HS. Aliases: <code>-mHS</code>, <code>-mav2hs</code>.
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</p>
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</dd>
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<dt><code>nps400</code></dt>
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<dd><a name="index-mnps400-command-line-option_002c-ARC"></a>
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<p>Assemble for ARC 700 with NPS-400 extended instructions.
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</p>
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</dd>
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</dl>
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<p>Note: the <code>.cpu</code> directive (see <a href="ARC-Directives.html#ARC-Directives">ARC Directives</a>) can
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to be used to select a core variant from within assembly code.
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</p>
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<a name="index-_002dEB-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-EB</code></dt>
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<dd><p>This option specifies that the output generated by the assembler should
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be marked as being encoded for a big-endian processor.
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</p>
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<a name="index-_002dEL-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-EL</code></dt>
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<dd><p>This option specifies that the output generated by the assembler should
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be marked as being encoded for a little-endian processor - this is the
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default.
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</p>
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<a name="index-_002dmcode_002ddensity-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-mcode-density</code></dt>
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<dd><p>This option turns on Code Density instructions. Only valid for ARC EM
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processors.
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</p>
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<a name="index-_002dmrelax-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-mrelax</code></dt>
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<dd><p>Enable support for assembly-time relaxation. The assembler will
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replace a longer version of an instruction with a shorter one,
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whenever it is possible.
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</p>
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<a name="index-_002dmnps400-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-mnps400</code></dt>
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<dd><p>Enable support for NPS-400 extended instructions.
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</p>
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<a name="index-_002dmspfp-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-mspfp</code></dt>
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<dd><p>Enable support for single-precision floating point instructions.
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</p>
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<a name="index-_002dmdpfp-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-mdpfp</code></dt>
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<dd><p>Enable support for double-precision floating point instructions.
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</p>
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<a name="index-_002dmfpuda-command-line-option_002c-ARC"></a>
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</dd>
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<dt><code>-mfpuda</code></dt>
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<dd><p>Enable support for double-precision assist floating point instructions.
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Only valid for ARC EM processors.
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</p>
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</dd>
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</dl>
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<hr>
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<div class="header">
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<p>
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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>
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</div>
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</body>
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</html>
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