<!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>