67 lines
3.6 KiB
HTML
67 lines
3.6 KiB
HTML
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<html lang="en">
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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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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2019 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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</head>
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<body>
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<div class="node">
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<a name="MIPS-Floating-Point"></a>
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<a name="MIPS-Floating_002dPoint"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="MIPS-Syntax.html#MIPS-Syntax">MIPS Syntax</a>,
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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>
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</div>
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<h4 class="subsection">9.27.13 Directives to override floating-point options</h4>
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<p><a name="index-Disable-floating_002dpoint-instructions-1655"></a><a name="index-g_t_0040code_007b_002eset-softfloat_007d-1656"></a><a name="index-g_t_0040code_007b_002eset-hardfloat_007d-1657"></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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(‘<samp><span class="samp">-msoft-float</span></samp>’ and ‘<samp><span class="samp">-mhard-float</span></samp>’).
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<p><a name="index-Disable-single_002dprecision-floating_002dpoint-operations-1658"></a><a name="index-g_t_0040code_007b_002eset-singlefloat_007d-1659"></a><a name="index-g_t_0040code_007b_002eset-doublefloat_007d-1660"></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 (‘<samp><span class="samp">-msingle-float</span></samp>’ and ‘<samp><span class="samp">-mdouble-float</span></samp>’).
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<p>Traditional MIPS assemblers do not support these directives.
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</body></html>
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