<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- This file documents the GNU linker LD (SiFive Binutils 2.32.0-2020.04.1) version 2.32. Copyright (C) 1991-2019 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". --> <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ --> <head> <title>Constants (LD)</title> <meta name="description" content="Constants (LD)"> <meta name="keywords" content="Constants (LD)"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="makeinfo"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <link href="index.html#Top" rel="start" title="Top"> <link href="LD-Index.html#LD-Index" rel="index" title="LD Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="Expressions.html#Expressions" rel="up" title="Expressions"> <link href="Symbolic-Constants.html#Symbolic-Constants" rel="next" title="Symbolic Constants"> <link href="Expressions.html#Expressions" rel="prev" title="Expressions"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} div.smalldisplay {margin-left: 3.2em} div.smallexample {margin-left: 3.2em} div.smalllisp {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} pre.smalldisplay {font-family: inherit; font-size: smaller} pre.smallexample {font-size: smaller} pre.smallformat {font-family: inherit; font-size: smaller} pre.smalllisp {font-size: smaller} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} ul.no-bullet {list-style: none} --> </style> </head> <body lang="en"> <a name="Constants"></a> <div class="header"> <p> Next: <a href="Symbolic-Constants.html#Symbolic-Constants" accesskey="n" rel="next">Symbolic Constants</a>, Up: <a href="Expressions.html#Expressions" accesskey="u" rel="up">Expressions</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LD-Index.html#LD-Index" title="Index" rel="index">Index</a>]</p> </div> <hr> <a name="Constants-1"></a> <h4 class="subsection">3.10.1 Constants</h4> <a name="index-integer-notation"></a> <a name="index-constants-in-linker-scripts"></a> <p>All constants are integers. </p> <p>As in C, the linker considers an integer beginning with ‘<samp>0</samp>’ to be octal, and an integer beginning with ‘<samp>0x</samp>’ or ‘<samp>0X</samp>’ to be hexadecimal. Alternatively the linker accepts suffixes of ‘<samp>h</samp>’ or ‘<samp>H</samp>’ for hexadecimal, ‘<samp>o</samp>’ or ‘<samp>O</samp>’ for octal, ‘<samp>b</samp>’ or ‘<samp>B</samp>’ for binary and ‘<samp>d</samp>’ or ‘<samp>D</samp>’ for decimal. Any integer value without a prefix or a suffix is considered to be decimal. </p> <a name="index-scaled-integers"></a> <a name="index-K-and-M-integer-suffixes"></a> <a name="index-M-and-K-integer-suffixes"></a> <a name="index-suffixes-for-integers"></a> <a name="index-integer-suffixes"></a> <p>In addition, you can use the suffixes <code>K</code> and <code>M</code> to scale a constant by <code>1024</code> or <code>1024*1024</code> respectively. For example, the following all refer to the same quantity: </p> <div class="smallexample"> <pre class="smallexample">_fourk_1 = 4K; _fourk_2 = 4096; _fourk_3 = 0x1000; _fourk_4 = 10000o; </pre></div> <p>Note - the <code>K</code> and <code>M</code> suffixes cannot be used in conjunction with the base suffixes mentioned above. </p> </body> </html>