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82 lines
3.6 KiB
HTML
82 lines
3.6 KiB
HTML
15 years ago
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<head>
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<title>CRIS-Symbols - 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 4.7">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="CRIS_002dDependent.html#CRIS_002dDependent" title="CRIS-Dependent">
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<link rel="prev" href="CRIS_002dExpand.html#CRIS_002dExpand" title="CRIS-Expand">
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<link rel="next" href="CRIS_002dSyntax.html#CRIS_002dSyntax" title="CRIS-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, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
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2006, 2007 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 1.1
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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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man end-->
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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.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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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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--></style>
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</head>
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<body>
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<div class="node">
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<p>
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<a name="CRIS_002dSymbols"></a>Next: <a rel="next" accesskey="n" href="CRIS_002dSyntax.html#CRIS_002dSyntax">CRIS-Syntax</a>,
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Previous: <a rel="previous" accesskey="p" href="CRIS_002dExpand.html#CRIS_002dExpand">CRIS-Expand</a>,
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Up: <a rel="up" accesskey="u" href="CRIS_002dDependent.html#CRIS_002dDependent">CRIS-Dependent</a>
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<hr><br>
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</div>
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<h4 class="subsection">9.7.3 Symbols</h4>
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<p><a name="index-Symbols_002c-built_002din_002c-CRIS-695"></a><a name="index-Symbols_002c-CRIS_002c-built_002din-696"></a><a name="index-CRIS-built_002din-symbols-697"></a><a name="index-Built_002din-symbols_002c-CRIS-698"></a>
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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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<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>
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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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<dl>
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<dt><code>..asm.arch.cris.any_v0_v10</code><dd>This symbol is non-zero when <span class="option">--march=v0_v10</span> is specified
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or the default.
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<br><dt><code>..asm.arch.cris.common_v10_v32</code><dd>Set according to the option <span class="option">--march=common_v10_v32</span>.
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<br><dt><code>..asm.arch.cris.v10</code><dd>Reflects the option <span class="option">--march=v10</span>.
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<br><dt><code>..asm.arch.cris.v32</code><dd>Corresponds to <span class="option">--march=v10</span>.
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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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</body></html>
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