63 lines
3 KiB
HTML
63 lines
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<html lang="en">
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<title>MIPS option stack - 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-insn.html#MIPS-insn" title="MIPS insn">
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<link rel="next" 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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<body>
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<div class="node">
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<p>
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<a name="MIPS-option-stack"></a>Next: <a rel="next" accesskey="n" href="MIPS-ASE-instruction-generation-overrides.html#MIPS-ASE-instruction-generation-overrides">MIPS ASE instruction generation overrides</a>,
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Previous: <a rel="previous" accesskey="p" href="MIPS-insn.html#MIPS-insn">MIPS insn</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">9.22.8 Directives to save and restore options</h4>
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<p><a name="index-MIPS-option-stack-1222"></a><a name="index-_0040code_007b_002eset-push_007d-1223"></a><a name="index-_0040code_007b_002eset-pop_007d-1224"></a>The directives <code>.set push</code> and <code>.set pop</code> may be used to save
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and restore the current settings for all the options which are
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controlled by <code>.set</code>. The <code>.set push</code> directive saves the
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current settings on a stack. The <code>.set pop</code> directive pops the
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stack and restores the settings.
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<p>These directives can be useful inside an macro which must change an
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option such as the ISA level or instruction reordering but does not want
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to change the state of the code which invoked the macro.
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<p>Traditional <span class="sc">mips</span> assemblers do not support these directives.
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</body></html>
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