<html lang="en">
<head>
<title>SH-Addressing - 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="SH-Syntax.html#SH-Syntax" title="SH Syntax">
<link rel="prev" href="SH_002dRegs.html#SH_002dRegs" title="SH-Regs">
<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="SH-Addressing"></a>
<a name="SH_002dAddressing"></a>
<p>
Previous: <a rel="previous" accesskey="p" href="SH_002dRegs.html#SH_002dRegs">SH-Regs</a>,
Up: <a rel="up" accesskey="u" href="SH-Syntax.html#SH-Syntax">SH Syntax</a>
<hr>
</div>
<h5 class="subsubsection">9.40.2.3 Addressing Modes</h5>
<p><a name="index-addressing-modes_002c-SH-1948"></a><a name="index-SH-addressing-modes-1949"></a><code>as</code> understands the following addressing modes for the SH.
<code>R</code><var>n</var> in the following refers to any of the numbered
registers, but <em>not</em> the control registers.
<dl>
<dt><code>R</code><var>n</var><dd>Register direct
<br><dt><code>@R</code><var>n</var><dd>Register indirect
<br><dt><code>@-R</code><var>n</var><dd>Register indirect with pre-decrement
<br><dt><code>@R</code><var>n</var><code>+</code><dd>Register indirect with post-increment
<br><dt><code>@(</code><var>disp</var><code>, R</code><var>n</var><code>)</code><dd>Register indirect with displacement
<br><dt><code>@(R0, R</code><var>n</var><code>)</code><dd>Register indexed
<br><dt><code>@(</code><var>disp</var><code>, GBR)</code><dd><code>GBR</code> offset
<br><dt><code>@(R0, GBR)</code><dd>GBR indexed
<br><dt><var>addr</var><dt><code>@(</code><var>disp</var><code>, PC)</code><dd>PC relative address (for branch or for addressing memory). The
<code>as</code> implementation allows you to use the simpler form
<var>addr</var> anywhere a PC relative address is called for; the alternate
form is supported for compatibility with other assemblers.
<br><dt><code>#</code><var>imm</var><dd>Immediate data
</dl>
</body></html>