84 lines
3.8 KiB
HTML
84 lines
3.8 KiB
HTML
<html lang="en">
|
|
<head>
|
|
<title>MicroBlaze 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="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent" title="MicroBlaze-Dependent">
|
|
<link rel="next" href="MicroBlaze-Syntax.html#MicroBlaze-Syntax" title="MicroBlaze Syntax">
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
|
<!--
|
|
This file documents the GNU Assembler "as".
|
|
|
|
Copyright (C) 1991-2019 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="MicroBlaze-Directives"></a>
|
|
<p>
|
|
Next: <a rel="next" accesskey="n" href="MicroBlaze-Syntax.html#MicroBlaze-Syntax">MicroBlaze Syntax</a>,
|
|
Up: <a rel="up" accesskey="u" href="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent">MicroBlaze-Dependent</a>
|
|
<hr>
|
|
</div>
|
|
|
|
<h4 class="subsection">9.26.1 Directives</h4>
|
|
|
|
<p><a name="index-MicroBlaze-directives-1548"></a>A number of assembler directives are available for MicroBlaze.
|
|
|
|
<dl>
|
|
<dt><code>.data8 </code><var>expression</var><code>,...</code><dd>This directive is an alias for <code>.byte</code>. Each expression is assembled
|
|
into an eight-bit value.
|
|
|
|
<br><dt><code>.data16 </code><var>expression</var><code>,...</code><dd>This directive is an alias for <code>.hword</code>. Each expression is assembled
|
|
into an 16-bit value.
|
|
|
|
<br><dt><code>.data32 </code><var>expression</var><code>,...</code><dd>This directive is an alias for <code>.word</code>. Each expression is assembled
|
|
into an 32-bit value.
|
|
|
|
<br><dt><code>.ent </code><var>name</var><code>[,</code><var>label</var><code>]</code><dd>This directive is an alias for <code>.func</code> denoting the start of function
|
|
<var>name</var> at (optional) <var>label</var>.
|
|
|
|
<br><dt><code>.end </code><var>name</var><code>[,</code><var>label</var><code>]</code><dd>This directive is an alias for <code>.endfunc</code> denoting the end of function
|
|
<var>name</var>.
|
|
|
|
<br><dt><code>.gpword </code><var>label</var><code>,...</code><dd>This directive is an alias for <code>.rva</code>. The resolved address of <var>label</var>
|
|
is stored in the data section.
|
|
|
|
<br><dt><code>.weakext </code><var>label</var><dd>Declare that <var>label</var> is a weak external symbol.
|
|
|
|
<br><dt><code>.rodata</code><dd>Switch to .rodata section. Equivalent to <code>.section .rodata</code>
|
|
|
|
<br><dt><code>.sdata2</code><dd>Switch to .sdata2 section. Equivalent to <code>.section .sdata2</code>
|
|
|
|
<br><dt><code>.sdata</code><dd>Switch to .sdata section. Equivalent to <code>.section .sdata</code>
|
|
|
|
<br><dt><code>.bss</code><dd>Switch to .bss section. Equivalent to <code>.section .bss</code>
|
|
|
|
<br><dt><code>.sbss</code><dd>Switch to .sbss section. Equivalent to <code>.section .sbss</code>
|
|
</dl>
|
|
|
|
</body></html>
|
|
|