75 lines
3.5 KiB
HTML
75 lines
3.5 KiB
HTML
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<html lang="en">
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<head>
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<title>Dc - Using as</title>
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<meta name="description" content="Using as">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Pseudo-Ops.html#Pseudo-Ops" title="Pseudo Ops">
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<link rel="prev" href="Data.html#Data" title="Data">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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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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</head>
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<body>
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<div class="node">
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<a name="Dc"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Dcb.html#Dcb">Dcb</a>,
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Previous: <a rel="previous" accesskey="p" href="Data.html#Data">Data</a>,
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Up: <a rel="up" accesskey="u" href="Pseudo-Ops.html#Pseudo-Ops">Pseudo Ops</a>
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<hr>
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</div>
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<h3 class="section">7.13 <code>.dc[</code><var>size</var><code>] </code><var>expressions</var></h3>
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<p><a name="index-g_t_0040code_007bdc_007d-directive-310"></a>
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The <code>.dc</code> directive expects zero or more <var>expressions</var> separated by
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commas. These expressions are evaluated and their values inserted into the
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current section. The size of the emitted value depends upon the suffix to the
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<code>.dc</code> directive:
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<dl>
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<dt><code>‘</code><samp><span class="samp">.a</span></samp><code>’</code><dd>Emits N-bit values, where N is the size of an address on the target system.
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<br><dt><code>‘</code><samp><span class="samp">.b</span></samp><code>’</code><dd>Emits 8-bit values.
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<br><dt><code>‘</code><samp><span class="samp">.d</span></samp><code>’</code><dd>Emits double precision floating-point values.
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<br><dt><code>‘</code><samp><span class="samp">.l</span></samp><code>’</code><dd>Emits 32-bit values.
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<br><dt><code>‘</code><samp><span class="samp">.s</span></samp><code>’</code><dd>Emits single precision floating-point values.
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<br><dt><code>‘</code><samp><span class="samp">.w</span></samp><code>’</code><dd>Emits 16-bit values.
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Note - this is true even on targets where the <code>.word</code> directive would emit
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32-bit values.
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<br><dt><code>‘</code><samp><span class="samp">.x</span></samp><code>’</code><dd>Emits long double precision floating-point values.
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</dl>
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<p>If no suffix is used then ‘<samp><span class="samp">.w</span></samp>’ is assumed.
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<p>The byte ordering is target dependent, as is the size and format of floating
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point values.
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</body></html>
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