You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
3.0 KiB
HTML
78 lines
3.0 KiB
HTML
4 years ago
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>RL78-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="RL78_002dDependent.html#RL78_002dDependent" title="RL78-Dependent">
|
||
|
|
<link rel="prev" href="RL78_002dOpts.html#RL78_002dOpts" title="RL78-Opts">
|
||
|
|
<link rel="next" href="RL78_002dDirectives.html#RL78_002dDirectives" title="RL78-Directives">
|
||
|
|
<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="RL78-Modifiers"></a>
|
||
|
|
<a name="RL78_002dModifiers"></a>
|
||
|
|
<p>
|
||
|
|
Next: <a rel="next" accesskey="n" href="RL78_002dDirectives.html#RL78_002dDirectives">RL78-Directives</a>,
|
||
|
|
Previous: <a rel="previous" accesskey="p" href="RL78_002dOpts.html#RL78_002dOpts">RL78-Opts</a>,
|
||
|
|
Up: <a rel="up" accesskey="u" href="RL78_002dDependent.html#RL78_002dDependent">RL78-Dependent</a>
|
||
|
|
<hr>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h4 class="subsection">9.36.2 Symbolic Operand Modifiers</h4>
|
||
|
|
|
||
|
|
<p><a name="index-RL78-modifiers-1828"></a><a name="index-syntax_002c-RL78-1829"></a>
|
||
|
|
The RL78 has three modifiers that adjust the relocations used by the
|
||
|
|
linker:
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>%lo16()</code><dd>
|
||
|
|
When loading a 20-bit (or wider) address into registers, this modifier
|
||
|
|
selects the 16 least significant bits.
|
||
|
|
|
||
|
|
<pre class="smallexample"> movw ax,#%lo16(_sym)
|
||
|
|
</pre>
|
||
|
|
<br><dt><code>%hi16()</code><dd>
|
||
|
|
When loading a 20-bit (or wider) address into registers, this modifier
|
||
|
|
selects the 16 most significant bits.
|
||
|
|
|
||
|
|
<pre class="smallexample"> movw ax,#%hi16(_sym)
|
||
|
|
</pre>
|
||
|
|
<br><dt><code>%hi8()</code><dd>
|
||
|
|
When loading a 20-bit (or wider) address into registers, this modifier
|
||
|
|
selects the 8 bits that would go into CS or ES (i.e. bits 23..16).
|
||
|
|
|
||
|
|
<pre class="smallexample"> mov es, #%hi8(_sym)
|
||
|
|
</pre>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
</body></html>
|
||
|
|
|