| <html lang="en"> |
| <head> |
| <title>Constants - Untitled</title> |
| <meta http-equiv="Content-Type" content="text/html"> |
| <meta name="description" content="Untitled"> |
| <meta name="generator" content="makeinfo 4.13"> |
| <link title="Top" rel="start" href="index.html#Top"> |
| <link rel="up" href="Expressions.html#Expressions" title="Expressions"> |
| <link rel="next" href="Symbolic-Constants.html#Symbolic-Constants" title="Symbolic Constants"> |
| <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> |
| <!-- |
| This file documents the GNU linker LD |
| (Sourcery G++ Lite 2011.03-41) |
| version 2.20.51. |
| |
| Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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> |
| <link rel="stylesheet" type="text/css" href="../cs.css"> |
| </head> |
| <body> |
| <div class="node"> |
| <a name="Constants"></a> |
| <p> |
| Next: <a rel="next" accesskey="n" href="Symbolic-Constants.html#Symbolic-Constants">Symbolic Constants</a>, |
| Up: <a rel="up" accesskey="u" href="Expressions.html#Expressions">Expressions</a> |
| <hr> |
| </div> |
| |
| <h4 class="subsection">3.10.1 Constants</h4> |
| |
| <p><a name="index-integer-notation-489"></a><a name="index-constants-in-linker-scripts-490"></a>All constants are integers. |
| |
| <p>As in C, the linker considers an integer beginning with ‘<samp><span class="samp">0</span></samp>’ to be |
| octal, and an integer beginning with ‘<samp><span class="samp">0x</span></samp>’ or ‘<samp><span class="samp">0X</span></samp>’ to be |
| hexadecimal. Alternatively the linker accepts suffixes of ‘<samp><span class="samp">h</span></samp>’ or |
| ‘<samp><span class="samp">H</span></samp>’ for hexadeciaml, ‘<samp><span class="samp">o</span></samp>’ or ‘<samp><span class="samp">O</span></samp>’ for octal, ‘<samp><span class="samp">b</span></samp>’ or |
| ‘<samp><span class="samp">B</span></samp>’ for binary and ‘<samp><span class="samp">d</span></samp>’ or ‘<samp><span class="samp">D</span></samp>’ for decimal. Any integer |
| value without a prefix or a suffix is considered to be decimal. |
| |
| <p><a name="index-scaled-integers-491"></a><a name="index-K-and-M-integer-suffixes-492"></a><a name="index-M-and-K-integer-suffixes-493"></a><a name="index-suffixes-for-integers-494"></a><a name="index-integer-suffixes-495"></a>In addition, you can use the suffixes <code>K</code> and <code>M</code> to scale a |
| constant by |
| <!-- TEXI2ROFF-KILL --> |
| <!-- END TEXI2ROFF-KILL --> |
| <code>1024</code> or <code>1024*1024</code> |
| <!-- TEXI2ROFF-KILL --> |
| <!-- END TEXI2ROFF-KILL --> |
| respectively. For example, the following |
| all refer to the same quantity: |
| |
| <pre class="smallexample"> _fourk_1 = 4K; |
| _fourk_2 = 4096; |
| _fourk_3 = 0x1000; |
| _fourk_4 = 10000o; |
| </pre> |
| <p>Note - the <code>K</code> and <code>M</code> suffixes cannot be used in |
| conjunction with the base suffixes mentioned above. |
| |
| </body></html> |
| |
