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67 lines
3.5 KiB
HTML
67 lines
3.5 KiB
HTML
15 years ago
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<title>MIPS floating-point - Using as</title>
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<meta name="description" content="Using as">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="MIPS_002dDependent.html#MIPS_002dDependent" title="MIPS-Dependent">
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<link rel="prev" href="MIPS-ASE-instruction-generation-overrides.html#MIPS-ASE-instruction-generation-overrides" title="MIPS ASE instruction generation overrides">
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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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--></style>
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<body>
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<div class="node">
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<p>
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<a name="MIPS-floating_002dpoint"></a>Previous: <a rel="previous" accesskey="p" href="MIPS-ASE-instruction-generation-overrides.html#MIPS-ASE-instruction-generation-overrides">MIPS ASE instruction generation overrides</a>,
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Up: <a rel="up" accesskey="u" href="MIPS_002dDependent.html#MIPS_002dDependent">MIPS-Dependent</a>
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<hr><br>
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</div>
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<h4 class="subsection">9.22.10 Directives to override floating-point options</h4>
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<p><a name="index-Disable-floating_002dpoint-instructions-1243"></a><a name="index-_0040code_007b_002eset-softfloat_007d-1244"></a><a name="index-_0040code_007b_002eset-hardfloat_007d-1245"></a>The directives <code>.set softfloat</code> and <code>.set hardfloat</code> provide
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finer control of disabling and enabling float-point instructions.
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These directives always override the default (that hard-float
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instructions are accepted) or the command-line options
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(<span class="samp">-msoft-float</span> and <span class="samp">-mhard-float</span>).
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<p><a name="index-Disable-single_002dprecision-floating_002dpoint-operations-1246"></a><a name="index-_0040code_007b_002eset-softfloat_007d-1247"></a><a name="index-_0040code_007b_002eset-hardfloat_007d-1248"></a>The directives <code>.set singlefloat</code> and <code>.set doublefloat</code>
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provide finer control of disabling and enabling double-precision
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float-point operations. These directives always override the default
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(that double-precision operations are accepted) or the command-line
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options (<span class="samp">-msingle-float</span> and <span class="samp">-mdouble-float</span>).
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<p>Traditional <span class="sc">mips</span> assemblers do not support these directives.
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<!-- Copyright 2001, 2002, 2003 Free Software Foundation, Inc. -->
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<!-- This is part of the GAS manual. -->
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<!-- For copying conditions, see the file as.texinfo. -->
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<!-- MMIX description by Hans-Peter Nilsson, hp@bitrange.com -->
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</body></html>
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