61 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
		
		
			
		
	
	
			61 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
| 
								 | 
							
								<html lang="en">
							 | 
						||
| 
								 | 
							
								<head>
							 | 
						||
| 
								 | 
							
								<title>Chars - Using as</title>
							 | 
						||
| 
								 | 
							
								<meta http-equiv="Content-Type" content="text/html">
							 | 
						||
| 
								 | 
							
								<meta name="description" content="Using as">
							 | 
						||
| 
								 | 
							
								<meta name="generator" content="makeinfo 4.7">
							 | 
						||
| 
								 | 
							
								<link title="Top" rel="start" href="index.html#Top">
							 | 
						||
| 
								 | 
							
								<link rel="up" href="Characters.html#Characters" title="Characters">
							 | 
						||
| 
								 | 
							
								<link rel="prev" href="Strings.html#Strings" title="Strings">
							 | 
						||
| 
								 | 
							
								<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
							 | 
						||
| 
								 | 
							
								<!--
							 | 
						||
| 
								 | 
							
								This file documents the GNU Assembler "as".
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
							 | 
						||
| 
								 | 
							
								2006, 2007 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 1.1
							 | 
						||
| 
								 | 
							
								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''.
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								man end-->
							 | 
						||
| 
								 | 
							
								<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; } 
							 | 
						||
| 
								 | 
							
								--></style>
							 | 
						||
| 
								 | 
							
								</head>
							 | 
						||
| 
								 | 
							
								<body>
							 | 
						||
| 
								 | 
							
								<div class="node">
							 | 
						||
| 
								 | 
							
								<p>
							 | 
						||
| 
								 | 
							
								<a name="Chars"></a>Previous: <a rel="previous" accesskey="p" href="Strings.html#Strings">Strings</a>,
							 | 
						||
| 
								 | 
							
								Up: <a rel="up" accesskey="u" href="Characters.html#Characters">Characters</a>
							 | 
						||
| 
								 | 
							
								<hr><br>
							 | 
						||
| 
								 | 
							
								</div>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								<h5 class="subsubsection">3.6.1.2 Characters</h5>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								<p><a name="index-single-character-constant-164"></a><a name="index-character_002c-single-165"></a><a name="index-constant_002c-single-character-166"></a>A single character may be written as a single quote immediately
							 | 
						||
| 
								 | 
							
								followed by that character.  The same escapes apply to characters as
							 | 
						||
| 
								 | 
							
								to strings.  So if you want to write the character backslash, you
							 | 
						||
| 
								 | 
							
								must write <kbd>'\\</kbd> where the first <code>\</code> escapes the second
							 | 
						||
| 
								 | 
							
								<code>\</code>.  As you can see, the quote is an acute accent, not a
							 | 
						||
| 
								 | 
							
								grave accent.  A newline
							 | 
						||
| 
								 | 
							
								immediately following an acute accent is taken as a literal character
							 | 
						||
| 
								 | 
							
								and does not count as the end of a statement.  The value of a character
							 | 
						||
| 
								 | 
							
								constant in a numeric expression is the machine's byte-wide code for
							 | 
						||
| 
								 | 
							
								that character.  <span class="command">as</span> assumes your character code is ASCII:
							 | 
						||
| 
								 | 
							
								<kbd>'A</kbd> means 65, <kbd>'B</kbd> means 66, and so on.
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								   </body></html>
							 | 
						||
| 
								 | 
							
								
							 |