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.
69 lines
3.1 KiB
HTML
69 lines
3.1 KiB
HTML
4 years ago
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>Symbol Intro - 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="Syntax.html#Syntax" title="Syntax">
|
||
|
|
<link rel="prev" href="Comments.html#Comments" title="Comments">
|
||
|
|
<link rel="next" href="Statements.html#Statements" title="Statements">
|
||
|
|
<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="Symbol-Intro"></a>
|
||
|
|
<p>
|
||
|
|
Next: <a rel="next" accesskey="n" href="Statements.html#Statements">Statements</a>,
|
||
|
|
Previous: <a rel="previous" accesskey="p" href="Comments.html#Comments">Comments</a>,
|
||
|
|
Up: <a rel="up" accesskey="u" href="Syntax.html#Syntax">Syntax</a>
|
||
|
|
<hr>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h3 class="section">3.4 Symbols</h3>
|
||
|
|
|
||
|
|
<p><a name="index-characters-used-in-symbols-128"></a>A <dfn>symbol</dfn> is one or more characters chosen from the set of all
|
||
|
|
letters (both upper and lower case), digits and the three characters
|
||
|
|
‘<samp><span class="samp">_.$</span></samp>’.
|
||
|
|
On most machines, you can also use <code>$</code> in symbol names; exceptions
|
||
|
|
are noted in <a href="Machine-Dependencies.html#Machine-Dependencies">Machine Dependencies</a>.
|
||
|
|
No symbol may begin with a digit. Case is significant.
|
||
|
|
There is no length limit; all characters are significant. Multibyte characters
|
||
|
|
are supported. Symbols are delimited by characters not in that set, or by the
|
||
|
|
beginning of a file (since the source program must end with a newline, the end
|
||
|
|
of a file is not a possible symbol delimiter). See <a href="Symbols.html#Symbols">Symbols</a>.
|
||
|
|
|
||
|
|
<p>Symbol names may also be enclosed in double quote <code>"</code> characters. In such
|
||
|
|
cases any characters are allowed, except for the NUL character. If a double
|
||
|
|
quote character is to be included in the symbol name it must be preceeded by a
|
||
|
|
backslash <code>\</code> character.
|
||
|
|
<a name="index-length-of-symbols-129"></a>
|
||
|
|
|
||
|
|
</body></html>
|
||
|
|
|