94 lines
3.8 KiB
HTML
94 lines
3.8 KiB
HTML
<!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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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using as: Struct</title>
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<meta name="description" content="Using as: Struct">
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<meta name="keywords" content="Using as: Struct">
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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="Pseudo-Ops.html#Pseudo-Ops" rel="up" title="Pseudo Ops">
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Struct"></a>
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<div class="header">
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<p>
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Next: <a href="SubSection.html#SubSection" accesskey="n" rel="next">SubSection</a>, Previous: <a href="String.html#String" accesskey="p" rel="prev">String</a>, Up: <a href="Pseudo-Ops.html#Pseudo-Ops" accesskey="u" rel="up">Pseudo Ops</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="g_t_002estruct-expression"></a>
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<h3 class="section">7.88 <code>.struct <var>expression</var></code></h3>
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<a name="index-struct-directive"></a>
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<p>Switch to the absolute section, and set the section offset to <var>expression</var>,
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which must be an absolute expression. You might use this as follows:
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</p><div class="smallexample">
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<pre class="smallexample"> .struct 0
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field1:
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.struct field1 + 4
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field2:
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.struct field2 + 4
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field3:
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</pre></div>
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<p>This would define the symbol <code>field1</code> to have the value 0, the symbol
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<code>field2</code> to have the value 4, and the symbol <code>field3</code> to have the
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value 8. Assembly would be left in the absolute section, and you would need to
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use a <code>.section</code> directive of some sort to change to some other section
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before further assembly.
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</p>
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</body>
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</html>
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