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84 lines
3.8 KiB
HTML
84 lines
3.8 KiB
HTML
4 years ago
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<html lang="en">
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<title>MicroBlaze Directives - Using as</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using as">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent" title="MicroBlaze-Dependent">
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<link rel="next" href="MicroBlaze-Syntax.html#MicroBlaze-Syntax" title="MicroBlaze Syntax">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.
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-->
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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family:serif; font-weight:normal; }
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span.sansserif { font-family:sans-serif; font-weight:normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="MicroBlaze-Directives"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="MicroBlaze-Syntax.html#MicroBlaze-Syntax">MicroBlaze Syntax</a>,
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Up: <a rel="up" accesskey="u" href="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent">MicroBlaze-Dependent</a>
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<hr>
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</div>
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<h4 class="subsection">9.26.1 Directives</h4>
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<p><a name="index-MicroBlaze-directives-1464"></a>A number of assembler directives are available for MicroBlaze.
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<dl>
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<dt><code>.data8 </code><var>expression</var><code>,...</code><dd>This directive is an alias for <code>.byte</code>. Each expression is assembled
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into an eight-bit value.
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<br><dt><code>.data16 </code><var>expression</var><code>,...</code><dd>This directive is an alias for <code>.hword</code>. Each expression is assembled
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into an 16-bit value.
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<br><dt><code>.data32 </code><var>expression</var><code>,...</code><dd>This directive is an alias for <code>.word</code>. Each expression is assembled
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into an 32-bit value.
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<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
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<var>name</var> at (optional) <var>label</var>.
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<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
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<var>name</var>.
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<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>
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is stored in the data section.
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<br><dt><code>.weakext </code><var>label</var><dd>Declare that <var>label</var> is a weak external symbol.
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<br><dt><code>.rodata</code><dd>Switch to .rodata section. Equivalent to <code>.section .rodata</code>
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<br><dt><code>.sdata2</code><dd>Switch to .sdata2 section. Equivalent to <code>.section .sdata2</code>
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<br><dt><code>.sdata</code><dd>Switch to .sdata section. Equivalent to <code>.section .sdata</code>
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<br><dt><code>.bss</code><dd>Switch to .bss section. Equivalent to <code>.section .bss</code>
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<br><dt><code>.sbss</code><dd>Switch to .sbss section. Equivalent to <code>.section .sbss</code>
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</dl>
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</body></html>
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