1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- This file documents the GNU Assembler "as". 4 5Copyright (C) 1991-2021 Free Software Foundation, Inc. 6 7Permission is granted to copy, distribute and/or modify this document 8under the terms of the GNU Free Documentation License, Version 1.3 9or any later version published by the Free Software Foundation; 10with no Invariant Sections, with no Front-Cover Texts, and with no 11Back-Cover Texts. A copy of the license is included in the 12section entitled "GNU Free Documentation License". 13 --> 14<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> 15<head> 16<title>Using as: MIPS assembly options</title> 17 18<meta name="description" content="Using as: MIPS assembly options"> 19<meta name="keywords" content="Using as: MIPS assembly options"> 20<meta name="resource-type" content="document"> 21<meta name="distribution" content="global"> 22<meta name="Generator" content="makeinfo"> 23<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 24<link href="index.html#Top" rel="start" title="Top"> 25<link href="AS-Index.html#AS-Index" rel="index" title="AS Index"> 26<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 27<link href="MIPS_002dDependent.html#MIPS_002dDependent" rel="up" title="MIPS-Dependent"> 28<link href="MIPS-autoextend.html#MIPS-autoextend" rel="next" title="MIPS autoextend"> 29<link href="MIPS-ISA.html#MIPS-ISA" rel="previous" title="MIPS ISA"> 30<style type="text/css"> 31<!-- 32a.summary-letter {text-decoration: none} 33blockquote.smallquotation {font-size: smaller} 34div.display {margin-left: 3.2em} 35div.example {margin-left: 3.2em} 36div.indentedblock {margin-left: 3.2em} 37div.lisp {margin-left: 3.2em} 38div.smalldisplay {margin-left: 3.2em} 39div.smallexample {margin-left: 3.2em} 40div.smallindentedblock {margin-left: 3.2em; font-size: smaller} 41div.smalllisp {margin-left: 3.2em} 42kbd {font-style:oblique} 43pre.display {font-family: inherit} 44pre.format {font-family: inherit} 45pre.menu-comment {font-family: serif} 46pre.menu-preformatted {font-family: serif} 47pre.smalldisplay {font-family: inherit; font-size: smaller} 48pre.smallexample {font-size: smaller} 49pre.smallformat {font-family: inherit; font-size: smaller} 50pre.smalllisp {font-size: smaller} 51span.nocodebreak {white-space:nowrap} 52span.nolinebreak {white-space:nowrap} 53span.roman {font-family:serif; font-weight:normal} 54span.sansserif {font-family:sans-serif; font-weight:normal} 55ul.no-bullet {list-style: none} 56--> 57</style> 58 59 60</head> 61 62<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> 63<a name="MIPS-assembly-options"></a> 64<div class="header"> 65<p> 66Next: <a href="MIPS-autoextend.html#MIPS-autoextend" accesskey="n" rel="next">MIPS autoextend</a>, Previous: <a href="MIPS-ISA.html#MIPS-ISA" accesskey="p" rel="previous">MIPS ISA</a>, Up: <a href="MIPS_002dDependent.html#MIPS_002dDependent" accesskey="u" rel="up">MIPS-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> 67</div> 68<hr> 69<a name="Directives-to-control-code-generation"></a> 70<h4 class="subsection">9.27.6 Directives to control code generation</h4> 71 72<a name="index-MIPS-directives-to-override-command_002dline-options"></a> 73<a name="index-_002emodule"></a> 74<p>The <code>.module</code> directive allows command-line options to be set directly 75from assembly. The format of the directive matches the <code>.set</code> 76directive but only those options which are relevant to a whole module are 77supported. The effect of a <code>.module</code> directive is the same as the 78corresponding command-line option. Where <code>.set</code> directives support 79returning to a default then the <code>.module</code> directives do not as they 80define the defaults. 81</p> 82<p>These module-level directives must appear first in assembly. 83</p> 84<p>Traditional MIPS assemblers do not support this directive. 85</p> 86<a name="index-MIPS-32_002dbit-microMIPS-instruction-generation-override"></a> 87<a name="index-_002eset-insn32"></a> 88<a name="index-_002eset-noinsn32"></a> 89<p>The directive <code>.set insn32</code> makes the assembler only use 32-bit 90instruction encodings when generating code for the microMIPS processor. 91This directive inhibits the use of any 16-bit instructions from that 92point on in the assembly. The <code>.set noinsn32</code> directive allows 9316-bit instructions to be accepted. 94</p> 95<p>Traditional MIPS assemblers do not support this directive. 96</p> 97 98 99 100</body> 101</html> 102