<html lang="en"> <head> <title>AArch64 Opcodes - 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="AArch64_002dDependent.html#AArch64_002dDependent" title="AArch64-Dependent"> <link rel="prev" href="AArch64-Directives.html#AArch64-Directives" title="AArch64 Directives"> <link rel="next" href="AArch64-Mapping-Symbols.html#AArch64-Mapping-Symbols" title="AArch64 Mapping Symbols"> <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="AArch64-Opcodes"></a> <p> Next: <a rel="next" accesskey="n" href="AArch64-Mapping-Symbols.html#AArch64-Mapping-Symbols">AArch64 Mapping Symbols</a>, Previous: <a rel="previous" accesskey="p" href="AArch64-Directives.html#AArch64-Directives">AArch64 Directives</a>, Up: <a rel="up" accesskey="u" href="AArch64_002dDependent.html#AArch64_002dDependent">AArch64-Dependent</a> <hr> </div> <h4 class="subsection">9.1.6 Opcodes</h4> <p><a name="index-AArch64-opcodes-557"></a><a name="index-opcodes-for-AArch64-558"></a>GAS implements all the standard AArch64 opcodes. It also implements several pseudo opcodes, including several synthetic load instructions. <a name="index-g_t_0040code_007bLDR-reg_002c_003d_003cexpr_003e_007d-pseudo-op_002c-AArch64-559"></a> <dl><dt><code>LDR =</code><dd> <pre class="smallexample"> ldr <register> , =<expression> </pre> <p>The constant expression will be placed into the nearest literal pool (if it not already there) and a PC-relative LDR instruction will be generated. </dl> <p>For more information on the AArch64 instruction set and assembly language notation, see ‘<samp><span class="samp">ARMv8 Instruction Set Overview</span></samp>’ available at <a href="http://infocenter.arm.com">http://infocenter.arm.com</a>. </body></html>