You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.8 KiB
HTML
60 lines
2.8 KiB
HTML
<html lang="en">
|
|
<head>
|
|
<title>Dot - 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="Symbols.html#Symbols" title="Symbols">
|
|
<link rel="prev" href="Symbol-Names.html#Symbol-Names" title="Symbol Names">
|
|
<link rel="next" href="Symbol-Attributes.html#Symbol-Attributes" title="Symbol Attributes">
|
|
<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="Dot"></a>
|
|
<p>
|
|
Next: <a rel="next" accesskey="n" href="Symbol-Attributes.html#Symbol-Attributes">Symbol Attributes</a>,
|
|
Previous: <a rel="previous" accesskey="p" href="Symbol-Names.html#Symbol-Names">Symbol Names</a>,
|
|
Up: <a rel="up" accesskey="u" href="Symbols.html#Symbols">Symbols</a>
|
|
<hr>
|
|
</div>
|
|
|
|
<h3 class="section">5.4 The Special Dot Symbol</h3>
|
|
|
|
<p><a name="index-dot-_0028symbol_0029-221"></a><a name="index-g_t_0040code_007b_002e_007d-_0028symbol_0029-222"></a><a name="index-current-address-223"></a><a name="index-location-counter-224"></a>The special symbol ‘<samp><span class="samp">.</span></samp>’ refers to the current address that
|
|
<samp><span class="command">as</span></samp> is assembling into. Thus, the expression ‘<samp><span class="samp">melvin:
|
|
.long .</span></samp>’ defines <code>melvin</code> to contain its own address.
|
|
Assigning a value to <code>.</code> is treated the same as a <code>.org</code>
|
|
directive.
|
|
Thus, the expression ‘<samp><span class="samp">.=.+4</span></samp>’ is the same as saying
|
|
‘<samp><span class="samp">.space 4</span></samp>’.
|
|
|
|
</body></html>
|
|
|