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.
69 lines
3.0 KiB
HTML
69 lines
3.0 KiB
HTML
4 years ago
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>RX-Directives - 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="RX_002dDependent.html#RX_002dDependent" title="RX-Dependent">
|
||
|
|
<link rel="prev" href="RX_002dModifiers.html#RX_002dModifiers" title="RX-Modifiers">
|
||
|
|
<link rel="next" href="RX_002dFloat.html#RX_002dFloat" title="RX-Float">
|
||
|
|
<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="RX-Directives"></a>
|
||
|
|
<a name="RX_002dDirectives"></a>
|
||
|
|
<p>
|
||
|
|
Next: <a rel="next" accesskey="n" href="RX_002dFloat.html#RX_002dFloat">RX-Float</a>,
|
||
|
|
Previous: <a rel="previous" accesskey="p" href="RX_002dModifiers.html#RX_002dModifiers">RX-Modifiers</a>,
|
||
|
|
Up: <a rel="up" accesskey="u" href="RX_002dDependent.html#RX_002dDependent">RX-Dependent</a>
|
||
|
|
<hr>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h4 class="subsection">9.37.3 Assembler Directives</h4>
|
||
|
|
|
||
|
|
<p><a name="index-assembler-directives_002c-RX-1858"></a><a name="index-RX-assembler-directives-1859"></a>
|
||
|
|
The RX version of <code>as</code> has the following specific
|
||
|
|
assembler directives:
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>.3byte</code><dd><a name="index-assembler-directive-_002e3byte_002c-RX-1860"></a><a name="index-RX-assembler-directive-_002e3byte-1861"></a>Inserts a 3-byte value into the output file at the current location.
|
||
|
|
|
||
|
|
<br><dt><code>.fetchalign</code><dd><a name="index-assembler-directive-_002efetchalign_002c-RX-1862"></a><a name="index-RX-assembler-directive-_002efetchalign-1863"></a>If the next opcode following this directive spans a fetch line
|
||
|
|
boundary (8 byte boundary), the opcode is aligned to that boundary.
|
||
|
|
If the next opcode does not span a fetch line, this directive has no
|
||
|
|
effect. Note that one or more labels may be between this directive
|
||
|
|
and the opcode; those labels are aligned as well. Any inserted bytes
|
||
|
|
due to alignment will form a NOP opcode.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
</body></html>
|
||
|
|
|