115 lines
4.7 KiB
HTML
115 lines
4.7 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the GNU Assembler "as".
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Copyright (C) 1991-2016 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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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using as: H8/300 Directives</title>
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<meta name="description" content="Using as: H8/300 Directives">
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<meta name="keywords" content="Using as: H8/300 Directives">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="H8_002f300_002dDependent.html#H8_002f300_002dDependent" rel="up" title="H8/300-Dependent">
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<link href="H8_002f300-Opcodes.html#H8_002f300-Opcodes" rel="next" title="H8/300 Opcodes">
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<link href="H8_002f300-Floating-Point.html#H8_002f300-Floating-Point" rel="prev" title="H8/300 Floating Point">
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a.summary-letter {text-decoration: none}
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div.example {margin-left: 3.2em}
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</head>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="H8_002f300-Directives"></a>
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<div class="header">
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<p>
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Next: <a href="H8_002f300-Opcodes.html#H8_002f300-Opcodes" accesskey="n" rel="next">H8/300 Opcodes</a>, Previous: <a href="H8_002f300-Floating-Point.html#H8_002f300-Floating-Point" accesskey="p" rel="prev">H8/300 Floating Point</a>, Up: <a href="H8_002f300_002dDependent.html#H8_002f300_002dDependent" accesskey="u" rel="up">H8/300-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>
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</div>
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<hr>
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<a name="H8_002f300-Machine-Directives"></a>
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<h4 class="subsection">9.12.4 H8/300 Machine Directives</h4>
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<a name="index-H8_002f300-machine-directives-_0028none_0029"></a>
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<a name="index-machine-directives_002c-H8_002f300-_0028none_0029"></a>
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<a name="index-word-directive_002c-H8_002f300"></a>
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<a name="index-int-directive_002c-H8_002f300"></a>
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<p><code>as</code> has the following machine-dependent directives for
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the H8/300:
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</p>
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<dl compact="compact">
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<dd><a name="index-H8_002f300H_002c-assembling-for"></a>
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</dd>
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<dt><code>.h8300h</code></dt>
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<dd><p>Recognize and emit additional instructions for the H8/300H variant, and
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also make <code>.int</code> emit 32-bit numbers rather than the usual (16-bit)
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for the H8/300 family.
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</p>
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</dd>
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<dt><code>.h8300s</code></dt>
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<dd><p>Recognize and emit additional instructions for the H8S variant, and
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also make <code>.int</code> emit 32-bit numbers rather than the usual (16-bit)
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for the H8/300 family.
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</p>
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</dd>
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<dt><code>.h8300hn</code></dt>
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<dd><p>Recognize and emit additional instructions for the H8/300H variant in
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normal mode, and also make <code>.int</code> emit 32-bit numbers rather than
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the usual (16-bit) for the H8/300 family.
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</p>
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</dd>
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<dt><code>.h8300sn</code></dt>
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<dd><p>Recognize and emit additional instructions for the H8S variant in
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normal mode, and also make <code>.int</code> emit 32-bit numbers rather than
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the usual (16-bit) for the H8/300 family.
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</p></dd>
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</dl>
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<p>On the H8/300 family (including the H8/300H) ‘<samp>.word</samp>’ directives
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generate 16-bit numbers.
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</p>
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</body>
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</html>
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