You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
3.0 KiB
HTML
64 lines
3.0 KiB
HTML
4 years ago
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>MIPS Option Stack - Using as</title>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html">
|
||
|
|
<meta name="description" content="Using as">
|
||
|
|
<meta name="generator" content="makeinfo 4.13">
|
||
|
|
<link title="Top" rel="start" href="index.html#Top">
|
||
|
|
<link rel="up" href="MIPS_002dDependent.html#MIPS_002dDependent" title="MIPS-Dependent">
|
||
|
|
<link rel="prev" href="MIPS-NaN-Encodings.html#MIPS-NaN-Encodings" title="MIPS NaN Encodings">
|
||
|
|
<link rel="next" href="MIPS-ASE-Instruction-Generation-Overrides.html#MIPS-ASE-Instruction-Generation-Overrides" title="MIPS ASE Instruction Generation Overrides">
|
||
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
||
|
|
<!--
|
||
|
|
This file documents the GNU Assembler "as".
|
||
|
|
|
||
|
|
Copyright (C) 1991-2015 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Permission is granted to copy, distribute and/or modify this document
|
||
|
|
under the terms of the GNU Free Documentation License, Version 1.3
|
||
|
|
or any later version published by the Free Software Foundation;
|
||
|
|
with no Invariant Sections, with no Front-Cover Texts, and with no
|
||
|
|
Back-Cover Texts. A copy of the license is included in the
|
||
|
|
section entitled ``GNU Free Documentation License''.
|
||
|
|
|
||
|
|
-->
|
||
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
||
|
|
<style type="text/css"><!--
|
||
|
|
pre.display { font-family:inherit }
|
||
|
|
pre.format { font-family:inherit }
|
||
|
|
pre.smalldisplay { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallformat { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallexample { font-size:smaller }
|
||
|
|
pre.smalllisp { font-size:smaller }
|
||
|
|
span.sc { font-variant:small-caps }
|
||
|
|
span.roman { font-family:serif; font-weight:normal; }
|
||
|
|
span.sansserif { font-family:sans-serif; font-weight:normal; }
|
||
|
|
--></style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<div class="node">
|
||
|
|
<a name="MIPS-Option-Stack"></a>
|
||
|
|
<p>
|
||
|
|
Next: <a rel="next" accesskey="n" href="MIPS-ASE-Instruction-Generation-Overrides.html#MIPS-ASE-Instruction-Generation-Overrides">MIPS ASE Instruction Generation Overrides</a>,
|
||
|
|
Previous: <a rel="previous" accesskey="p" href="MIPS-NaN-Encodings.html#MIPS-NaN-Encodings">MIPS NaN Encodings</a>,
|
||
|
|
Up: <a rel="up" accesskey="u" href="MIPS_002dDependent.html#MIPS_002dDependent">MIPS-Dependent</a>
|
||
|
|
<hr>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h4 class="subsection">9.27.11 Directives to save and restore options</h4>
|
||
|
|
|
||
|
|
<p><a name="index-MIPS-option-stack-1514"></a><a name="index-g_t_0040code_007b_002eset-push_007d-1515"></a><a name="index-g_t_0040code_007b_002eset-pop_007d-1516"></a>The directives <code>.set push</code> and <code>.set pop</code> may be used to save
|
||
|
|
and restore the current settings for all the options which are
|
||
|
|
controlled by <code>.set</code>. The <code>.set push</code> directive saves the
|
||
|
|
current settings on a stack. The <code>.set pop</code> directive pops the
|
||
|
|
stack and restores the settings.
|
||
|
|
|
||
|
|
<p>These directives can be useful inside an macro which must change an
|
||
|
|
option such as the ISA level or instruction reordering but does not want
|
||
|
|
to change the state of the code which invoked the macro.
|
||
|
|
|
||
|
|
<p>Traditional MIPS assemblers do not support these directives.
|
||
|
|
|
||
|
|
</body></html>
|
||
|
|
|