<html lang="en"> <head> <title>LM32-Modifiers - 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="LM32-Syntax.html#LM32-Syntax" title="LM32 Syntax"> <link rel="prev" href="LM32_002dRegs.html#LM32_002dRegs" title="LM32-Regs"> <link rel="next" href="LM32_002dChars.html#LM32_002dChars" title="LM32-Chars"> <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="LM32-Modifiers"></a> <a name="LM32_002dModifiers"></a> <p> Next: <a rel="next" accesskey="n" href="LM32_002dChars.html#LM32_002dChars">LM32-Chars</a>, Previous: <a rel="previous" accesskey="p" href="LM32_002dRegs.html#LM32_002dRegs">LM32-Regs</a>, Up: <a rel="up" accesskey="u" href="LM32-Syntax.html#LM32-Syntax">LM32 Syntax</a> <hr> </div> <h5 class="subsubsection">9.20.2.2 Relocatable Expression Modifiers</h5> <p><a name="index-LM32-modifiers-1254"></a><a name="index-syntax_002c-LM32-1255"></a> The assembler supports several modifiers when using relocatable addresses in LM32 instruction operands. The general syntax is the following: <pre class="smallexample"> modifier(relocatable-expression) </pre> <a name="index-symbol-modifiers-1256"></a> <dl> <dt><code>lo</code><dd> This modifier allows you to use bits 0 through 15 of an address expression as 16 bit relocatable expression. <br><dt><code>hi</code><dd> This modifier allows you to use bits 16 through 23 of an address expression as 16 bit relocatable expression. <p>For example <pre class="smallexample"> ori r4, r4, lo(sym+10) orhi r4, r4, hi(sym+10) </pre> <br><dt><code>gp</code><dd> This modified creates a 16-bit relocatable expression that is the offset of the symbol from the global pointer. <pre class="smallexample"> mva r4, gp(sym) </pre> <br><dt><code>got</code><dd> This modifier places a symbol in the GOT and creates a 16-bit relocatable expression that is the offset into the GOT of this symbol. <pre class="smallexample"> lw r4, (gp+got(sym)) </pre> <br><dt><code>gotofflo16</code><dd> This modifier allows you to use the bits 0 through 15 of an address which is an offset from the GOT. <br><dt><code>gotoffhi16</code><dd> This modifier allows you to use the bits 16 through 31 of an address which is an offset from the GOT. <pre class="smallexample"> orhi r4, r4, gotoffhi16(lsym) addi r4, r4, gotofflo16(lsym) </pre> </dl> </body></html>