71 lines
3.3 KiB
HTML
71 lines
3.3 KiB
HTML
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<html lang="en">
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<head>
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<title>Dcb - Using as</title>
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<link rel="up" href="Pseudo-Ops.html#Pseudo-Ops" title="Pseudo Ops">
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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="Dcb"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Ds.html#Ds">Ds</a>,
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Previous: <a rel="previous" accesskey="p" href="Dc.html#Dc">Dc</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">7.14 <code>.dcb[</code><var>size</var><code>] </code><var>number</var><code> [,</code><var>fill</var><code>]</code></h3>
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<p><a name="index-g_t_0040code_007bdcb_007d-directive-311"></a>This directive emits <var>number</var> copies of <var>fill</var>, each of <var>size</var>
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bytes. Both <var>number</var> and <var>fill</var> are absolute expressions. If the
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comma and <var>fill</var> are omitted, <var>fill</var> is assumed to be zero. The
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<var>size</var> suffix, if present, must be one of:
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<dl>
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<dt><code>‘</code><samp><span class="samp">.b</span></samp><code>’</code><dd>Emits single byte 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 4-byte 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 2-byte 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 the <var>size</var> suffix is omitted 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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