blob: d56dff0d5ee93a18222e6e9d482b85ac0ce8f910 [file] [log] [blame]
<html lang="en">
<head>
<title>Fill - Using as</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="Using as">
<meta name="generator" content="makeinfo 4.13">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Pseudo-Ops.html#Pseudo-Ops" title="Pseudo Ops">
<link rel="prev" href="File.html#File" title="File">
<link rel="next" href="Float.html#Float" title="Float">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<!--
This file documents the GNU Assembler "as".
Copyright (C) 1991-2019 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''.
-->
<meta http-equiv="Content-Style-Type" content="text/css">
<style type="text/css"><!--
pre.display { font-family:inherit }
pre.format { font-family:inherit }
pre.smalldisplay { font-family:inherit; font-size:smaller }
pre.smallformat { font-family:inherit; font-size:smaller }
pre.smallexample { font-size:smaller }
pre.smalllisp { font-size:smaller }
span.sc { font-variant:small-caps }
span.roman { font-family:serif; font-weight:normal; }
span.sansserif { font-family:sans-serif; font-weight:normal; }
--></style>
</head>
<body>
<div class="node">
<a name="Fill"></a>
<p>
Next:&nbsp;<a rel="next" accesskey="n" href="Float.html#Float">Float</a>,
Previous:&nbsp;<a rel="previous" accesskey="p" href="File.html#File">File</a>,
Up:&nbsp;<a rel="up" accesskey="u" href="Pseudo-Ops.html#Pseudo-Ops">Pseudo Ops</a>
<hr>
</div>
<h3 class="section">7.36 <code>.fill </code><var>repeat</var><code> , </code><var>size</var><code> , </code><var>value</var></h3>
<p><a name="index-g_t_0040code_007bfill_007d-directive-346"></a><a name="index-writing-patterns-in-memory-347"></a><a name="index-patterns_002c-writing-in-memory-348"></a><var>repeat</var>, <var>size</var> and <var>value</var> are absolute expressions.
This emits <var>repeat</var> copies of <var>size</var> bytes. <var>Repeat</var>
may be zero or more. <var>Size</var> may be zero or more, but if it is
more than 8, then it is deemed to have the value 8, compatible with
other people's assemblers. The contents of each <var>repeat</var> bytes
is taken from an 8-byte number. The highest order 4 bytes are
zero. The lowest order 4 bytes are <var>value</var> rendered in the
byte-order of an integer on the computer <samp><span class="command">as</span></samp> is assembling for.
Each <var>size</var> bytes in a repetition is taken from the lowest order
<var>size</var> bytes of this number. Again, this bizarre behavior is
compatible with other people's assemblers.
<p><var>size</var> and <var>value</var> are optional.
If the second comma and <var>value</var> are absent, <var>value</var> is
assumed zero. If the first comma and following tokens are absent,
<var>size</var> is assumed to be 1.
</body></html>