121 lines
4.7 KiB
HTML
121 lines
4.7 KiB
HTML
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<!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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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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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using as: CRIS-Symbols</title>
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<meta name="description" content="Using as: CRIS-Symbols">
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<meta name="keywords" content="Using as: CRIS-Symbols">
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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="CRIS_002dDependent.html#CRIS_002dDependent" rel="up" title="CRIS-Dependent">
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<link href="CRIS_002dSyntax.html#CRIS_002dSyntax" rel="next" title="CRIS-Syntax">
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<link href="CRIS_002dExpand.html#CRIS_002dExpand" rel="prev" title="CRIS-Expand">
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</style>
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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="CRIS_002dSymbols"></a>
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<div class="header">
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<p>
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Next: <a href="CRIS_002dSyntax.html#CRIS_002dSyntax" accesskey="n" rel="next">CRIS-Syntax</a>, Previous: <a href="CRIS_002dExpand.html#CRIS_002dExpand" accesskey="p" rel="prev">CRIS-Expand</a>, Up: <a href="CRIS_002dDependent.html#CRIS_002dDependent" accesskey="u" rel="up">CRIS-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="Symbols-3"></a>
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<h4 class="subsection">9.8.3 Symbols</h4>
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<a name="index-Symbols_002c-built_002din_002c-CRIS"></a>
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<a name="index-Symbols_002c-CRIS_002c-built_002din"></a>
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<a name="index-CRIS-built_002din-symbols"></a>
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<a name="index-Built_002din-symbols_002c-CRIS"></a>
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<p>Some symbols are defined by the assembler. They’re intended to
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be used in conditional assembly, for example:
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</p><div class="smallexample">
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<pre class="smallexample"> .if ..asm.arch.cris.v32
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<var>code for CRIS v32</var>
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.elseif ..asm.arch.cris.common_v10_v32
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<var>code common to CRIS v32 and CRIS v10</var>
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.elseif ..asm.arch.cris.v10 | ..asm.arch.cris.any_v0_v10
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<var>code for v10</var>
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.else
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.error "Code needs to be added here."
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.endif
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</pre></div>
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<p>These symbols are defined in the assembler, reflecting
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command-line options, either when specified or the default.
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They are always defined, to 0 or 1.
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</p><dl compact="compact">
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<dt><code>..asm.arch.cris.any_v0_v10</code></dt>
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<dd><p>This symbol is non-zero when <samp>--march=v0_v10</samp> is specified
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or the default.
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</p>
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</dd>
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<dt><code>..asm.arch.cris.common_v10_v32</code></dt>
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<dd><p>Set according to the option <samp>--march=common_v10_v32</samp>.
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</p>
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</dd>
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<dt><code>..asm.arch.cris.v10</code></dt>
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<dd><p>Reflects the option <samp>--march=v10</samp>.
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</p>
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</dd>
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<dt><code>..asm.arch.cris.v32</code></dt>
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<dd><p>Corresponds to <samp>--march=v10</samp>.
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</p></dd>
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</dl>
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<p>Speaking of symbols, when a symbol is used in code, it can have
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a suffix modifying its value for use in position-independent
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code. See <a href="CRIS_002dPic.html#CRIS_002dPic">CRIS-Pic</a>.
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</p>
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</body>
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</html>
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