104 lines
4.1 KiB
HTML
104 lines
4.1 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: Irp</title>
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<meta name="description" content="Using as: Irp">
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<meta name="keywords" content="Using as: Irp">
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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="Pseudo-Ops.html#Pseudo-Ops" rel="up" title="Pseudo Ops">
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<link href="Irpc.html#Irpc" rel="next" title="Irpc">
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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="Irp"></a>
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<div class="header">
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<p>
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Next: <a href="Irpc.html#Irpc" accesskey="n" rel="next">Irpc</a>, Previous: <a href="Internal.html#Internal" accesskey="p" rel="prev">Internal</a>, Up: <a href="Pseudo-Ops.html#Pseudo-Ops" accesskey="u" rel="up">Pseudo Ops</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="g_t_002eirp-symbol_002cvalues_2026"></a>
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<h3 class="section">7.46 <code>.irp <var>symbol</var>,<var>values</var></code>…</h3>
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<a name="index-irp-directive"></a>
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<p>Evaluate a sequence of statements assigning different values to <var>symbol</var>.
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The sequence of statements starts at the <code>.irp</code> directive, and is
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terminated by an <code>.endr</code> directive. For each <var>value</var>, <var>symbol</var> is
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set to <var>value</var>, and the sequence of statements is assembled. If no
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<var>value</var> is listed, the sequence of statements is assembled once, with
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<var>symbol</var> set to the null string. To refer to <var>symbol</var> within the
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sequence of statements, use <var>\symbol</var>.
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</p>
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<p>For example, assembling
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</p>
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<div class="example">
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<pre class="example"> .irp param,1,2,3
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move d\param,sp@-
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.endr
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</pre></div>
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<p>is equivalent to assembling
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</p>
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<div class="example">
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<pre class="example"> move d1,sp@-
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move d2,sp@-
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move d3,sp@-
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</pre></div>
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<p>For some caveats with the spelling of <var>symbol</var>, see also <a href="Macro.html#Macro">Macro</a>.
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</p>
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</body>
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</html>
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