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94 lines
4.0 KiB
HTML
94 lines
4.0 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) 1991-2019 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 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>2byte (Using as)</title>
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<meta name="description" content="2byte (Using as)">
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<meta name="keywords" content="2byte (Using as)">
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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="Pseudo-Ops.html#Pseudo-Ops" rel="up" title="Pseudo Ops">
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<link href="4byte.html#g_t4byte" rel="next" title="4byte">
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<link href="Zero.html#Zero" rel="prev" title="Zero">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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blockquote.indentedblock {margin-right: 0em}
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blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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blockquote.smallquotation {font-size: smaller}
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div.display {margin-left: 3.2em}
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div.example {margin-left: 3.2em}
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div.lisp {margin-left: 3.2em}
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div.smalldisplay {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.smalldisplay {font-family: inherit; font-size: smaller}
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ul.no-bullet {list-style: none}
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</style>
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</head>
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<body lang="en">
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<a name="g_t2byte"></a>
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<div class="header">
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<p>
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Next: <a href="4byte.html#g_t4byte" accesskey="n" rel="next">4byte</a>, Previous: <a href="Zero.html#Zero" accesskey="p" rel="prev">Zero</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_002e2byte-expression-_005b_002c-expression_005d_002a"></a>
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<h3 class="section">7.109 <code>.2byte <var>expression</var> [, <var>expression</var>]*</code></h3>
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<a name="index-2byte-directive"></a>
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<a name="index-two_002dbyte-integer"></a>
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<a name="index-integer_002c-2_002dbyte"></a>
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<p>This directive expects zero or more expressions, separated by commas. If there
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are no expressions then the directive does nothing. Otherwise each expression
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is evaluated in turn and placed in the next two bytes of the current output
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section, using the endian model of the target. If an expression will not fit
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in two bytes, a warning message is displayed and the least significant two
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bytes of the expression’s value are used. If an expression cannot be evaluated
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at assembly time then relocations will be generated in order to compute the
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value at link time.
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</p>
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<p>This directive does not apply any alignment before or after inserting the
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values. As a result of this, if relocations are generated, they may be
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different from those used for inserting values with a guaranteed alignment.
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</p>
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<p>This directive is only available for ELF targets,
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</p>
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</body>
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</html>
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