| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- This file documents the GNU Assembler "as". |
| |
| Copyright (C) 1991-2014 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". |
| --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>Using as: MicroBlaze Directives</title> |
| |
| <meta name="description" content="Using as: MicroBlaze Directives"> |
| <meta name="keywords" content="Using as: MicroBlaze Directives"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="AS-Index.html#AS-Index" rel="index" title="AS Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent" rel="up" title="MicroBlaze-Dependent"> |
| <link href="MicroBlaze-Syntax.html#MicroBlaze-Syntax" rel="next" title="MicroBlaze Syntax"> |
| <link href="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent" rel="prev" title="MicroBlaze-Dependent"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="MicroBlaze-Directives"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="MicroBlaze-Syntax.html#MicroBlaze-Syntax" accesskey="n" rel="next">MicroBlaze Syntax</a>, Up: <a href="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent" accesskey="u" rel="up">MicroBlaze-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| <hr> |
| <a name="Directives-1"></a> |
| <h4 class="subsection">9.26.1 Directives</h4> |
| <a name="index-MicroBlaze-directives"></a> |
| <p>A number of assembler directives are available for MicroBlaze. |
| </p> |
| <dl compact="compact"> |
| <dt><code>.data8 <var>expression</var>,...</code></dt> |
| <dd><p>This directive is an alias for <code>.byte</code>. Each expression is assembled |
| into an eight-bit value. |
| </p> |
| </dd> |
| <dt><code>.data16 <var>expression</var>,...</code></dt> |
| <dd><p>This directive is an alias for <code>.hword</code>. Each expression is assembled |
| into an 16-bit value. |
| </p> |
| </dd> |
| <dt><code>.data32 <var>expression</var>,...</code></dt> |
| <dd><p>This directive is an alias for <code>.word</code>. Each expression is assembled |
| into an 32-bit value. |
| </p> |
| </dd> |
| <dt><code>.ent <var>name</var>[,<var>label</var>]</code></dt> |
| <dd><p>This directive is an alias for <code>.func</code> denoting the start of function |
| <var>name</var> at (optional) <var>label</var>. |
| </p> |
| </dd> |
| <dt><code>.end <var>name</var>[,<var>label</var>]</code></dt> |
| <dd><p>This directive is an alias for <code>.endfunc</code> denoting the end of function |
| <var>name</var>. |
| </p> |
| </dd> |
| <dt><code>.gpword <var>label</var>,...</code></dt> |
| <dd><p>This directive is an alias for <code>.rva</code>. The resolved address of <var>label</var> |
| is stored in the data section. |
| </p> |
| </dd> |
| <dt><code>.weakext <var>label</var></code></dt> |
| <dd><p>Declare that <var>label</var> is a weak external symbol. |
| </p> |
| </dd> |
| <dt><code>.rodata</code></dt> |
| <dd><p>Switch to .rodata section. Equivalent to <code>.section .rodata</code> |
| </p> |
| </dd> |
| <dt><code>.sdata2</code></dt> |
| <dd><p>Switch to .sdata2 section. Equivalent to <code>.section .sdata2</code> |
| </p> |
| </dd> |
| <dt><code>.sdata</code></dt> |
| <dd><p>Switch to .sdata section. Equivalent to <code>.section .sdata</code> |
| </p> |
| </dd> |
| <dt><code>.bss</code></dt> |
| <dd><p>Switch to .bss section. Equivalent to <code>.section .bss</code> |
| </p> |
| </dd> |
| <dt><code>.sbss</code></dt> |
| <dd><p>Switch to .sbss section. Equivalent to <code>.section .sbss</code> |
| </p></dd> |
| </dl> |
| |
| |
| |
| |
| </body> |
| </html> |