<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) 1991-2015 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: <a rel="next" accesskey="n" href="Float.html#Float">Float</a>, Previous: <a rel="previous" accesskey="p" href="File.html#File">File</a>, Up: <a rel="up" accesskey="u" href="Pseudo-Ops.html#Pseudo-Ops">Pseudo Ops</a> <hr> </div> <h3 class="section">7.33 <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-341"></a><a name="index-writing-patterns-in-memory-342"></a><a name="index-patterns_002c-writing-in-memory-343"></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>