visus
/
toolchain-gcc-arm-embedded

<!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>Desc (Using as)</title>

<meta name="description" content="Desc (Using as)">
<meta name="keywords" content="Desc (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="Pseudo-Ops.html#Pseudo-Ops" rel="up" title="Pseudo Ops">
<link href="Dim.html#Dim" rel="next" title="Dim">
<link href="Def.html#Def" rel="prev" title="Def">
<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="Desc"></a>
<div class="header">
<p>
Next: <a href="Dim.html#Dim" accesskey="n" rel="next">Dim</a>, Previous: <a href="Def.html#Def" accesskey="p" rel="prev">Def</a>, Up: <a href="Pseudo-Ops.html#Pseudo-Ops" accesskey="u" rel="up">Pseudo Ops</a> &nbsp; [<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="g_t_002edesc-symbol_002c-abs_002dexpression"></a>
<h3 class="section">7.17 <code>.desc <var>symbol</var>, <var>abs-expression</var></code></h3>

<a name="index-desc-directive"></a>
<a name="index-COFF-symbol-descriptor"></a>
<a name="index-symbol-descriptor_002c-COFF"></a>
<p>This directive sets the descriptor of the symbol (see <a href="Symbol-Attributes.html#Symbol-Attributes">Symbol Attributes</a>)
to the low 16 bits of an absolute expression.
</p>
<p>The &lsquo;<samp>.desc</samp>&rsquo; directive is not available when <code>as</code> is
configured for COFF output; it is only for <code>a.out</code> or <code>b.out</code>
object format.  For the sake of compatibility, <code>as</code> accepts
it, but produces no output, when configured for COFF.
</p>


</body>
</html>