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 ASE Instruction Generation Overrides</title> 17 18<meta name="description" content="Using as: MIPS ASE Instruction Generation Overrides"> 19<meta name="keywords" content="Using as: MIPS ASE Instruction Generation Overrides"> 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-Floating_002dPoint.html#MIPS-Floating_002dPoint" rel="next" title="MIPS Floating-Point"> 29<link href="MIPS-Option-Stack.html#MIPS-Option-Stack" rel="previous" title="MIPS Option Stack"> 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-ASE-Instruction-Generation-Overrides"></a> 64<div class="header"> 65<p> 66Next: <a href="MIPS-Floating_002dPoint.html#MIPS-Floating_002dPoint" accesskey="n" rel="next">MIPS Floating-Point</a>, Previous: <a href="MIPS-Option-Stack.html#MIPS-Option-Stack" accesskey="p" rel="previous">MIPS Option Stack</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-generation-of-MIPS-ASE-instructions"></a> 70<h4 class="subsection">9.27.12 Directives to control generation of MIPS ASE instructions</h4> 71 72<a name="index-MIPS-MIPS_002d3D-instruction-generation-override"></a> 73<a name="index-_002eset-mips3d"></a> 74<a name="index-_002eset-nomips3d"></a> 75<p>The directive <code>.set mips3d</code> makes the assembler accept instructions 76from the MIPS-3D Application Specific Extension from that point on 77in the assembly. The <code>.set nomips3d</code> directive prevents MIPS-3D 78instructions from being accepted. 79</p> 80<a name="index-SmartMIPS-instruction-generation-override"></a> 81<a name="index-_002eset-smartmips"></a> 82<a name="index-_002eset-nosmartmips"></a> 83<p>The directive <code>.set smartmips</code> makes the assembler accept 84instructions from the SmartMIPS Application Specific Extension to the 85MIPS32 ISA from that point on in the assembly. The 86<code>.set nosmartmips</code> directive prevents SmartMIPS instructions from 87being accepted. 88</p> 89<a name="index-MIPS-MDMX-instruction-generation-override"></a> 90<a name="index-_002eset-mdmx"></a> 91<a name="index-_002eset-nomdmx"></a> 92<p>The directive <code>.set mdmx</code> makes the assembler accept instructions 93from the MDMX Application Specific Extension from that point on 94in the assembly. The <code>.set nomdmx</code> directive prevents MDMX 95instructions from being accepted. 96</p> 97<a name="index-MIPS-DSP-Release-1-instruction-generation-override"></a> 98<a name="index-_002eset-dsp"></a> 99<a name="index-_002eset-nodsp"></a> 100<p>The directive <code>.set dsp</code> makes the assembler accept instructions 101from the DSP Release 1 Application Specific Extension from that point 102on in the assembly. The <code>.set nodsp</code> directive prevents DSP 103Release 1 instructions from being accepted. 104</p> 105<a name="index-MIPS-DSP-Release-2-instruction-generation-override"></a> 106<a name="index-_002eset-dspr2"></a> 107<a name="index-_002eset-nodspr2"></a> 108<p>The directive <code>.set dspr2</code> makes the assembler accept instructions 109from the DSP Release 2 Application Specific Extension from that point 110on in the assembly. This directive implies <code>.set dsp</code>. The 111<code>.set nodspr2</code> directive prevents DSP Release 2 instructions from 112being accepted. 113</p> 114<a name="index-MIPS-DSP-Release-3-instruction-generation-override"></a> 115<a name="index-_002eset-dspr3"></a> 116<a name="index-_002eset-nodspr3"></a> 117<p>The directive <code>.set dspr3</code> makes the assembler accept instructions 118from the DSP Release 3 Application Specific Extension from that point 119on in the assembly. This directive implies <code>.set dsp</code> and 120<code>.set dspr2</code>. The <code>.set nodspr3</code> directive prevents DSP 121Release 3 instructions from being accepted. 122</p> 123<a name="index-MIPS-MT-instruction-generation-override"></a> 124<a name="index-_002eset-mt"></a> 125<a name="index-_002eset-nomt"></a> 126<p>The directive <code>.set mt</code> makes the assembler accept instructions 127from the MT Application Specific Extension from that point on 128in the assembly. The <code>.set nomt</code> directive prevents MT 129instructions from being accepted. 130</p> 131<a name="index-MIPS-MCU-instruction-generation-override"></a> 132<a name="index-_002eset-mcu"></a> 133<a name="index-_002eset-nomcu"></a> 134<p>The directive <code>.set mcu</code> makes the assembler accept instructions 135from the MCU Application Specific Extension from that point on 136in the assembly. The <code>.set nomcu</code> directive prevents MCU 137instructions from being accepted. 138</p> 139<a name="index-MIPS-SIMD-Architecture-instruction-generation-override"></a> 140<a name="index-_002eset-msa"></a> 141<a name="index-_002eset-nomsa"></a> 142<p>The directive <code>.set msa</code> makes the assembler accept instructions 143from the MIPS SIMD Architecture Extension from that point on 144in the assembly. The <code>.set nomsa</code> directive prevents MSA 145instructions from being accepted. 146</p> 147<a name="index-Virtualization-instruction-generation-override"></a> 148<a name="index-_002eset-virt"></a> 149<a name="index-_002eset-novirt"></a> 150<p>The directive <code>.set virt</code> makes the assembler accept instructions 151from the Virtualization Application Specific Extension from that point 152on in the assembly. The <code>.set novirt</code> directive prevents Virtualization 153instructions from being accepted. 154</p> 155<a name="index-MIPS-eXtended-Physical-Address-_0028XPA_0029-instruction-generation-override"></a> 156<a name="index-_002eset-xpa"></a> 157<a name="index-_002eset-noxpa"></a> 158<p>The directive <code>.set xpa</code> makes the assembler accept instructions 159from the XPA Extension from that point on in the assembly. The 160<code>.set noxpa</code> directive prevents XPA instructions from being accepted. 161</p> 162<a name="index-MIPS16e2-instruction-generation-override"></a> 163<a name="index-_002eset-mips16e2"></a> 164<a name="index-_002eset-nomips16e2"></a> 165<p>The directive <code>.set mips16e2</code> makes the assembler accept instructions 166from the MIPS16e2 Application Specific Extension from that point on in the 167assembly, whenever in MIPS16 mode. The <code>.set nomips16e2</code> directive 168prevents MIPS16e2 instructions from being accepted, in MIPS16 mode. Neither 169directive affects the state of MIPS16 mode being active itself which has 170separate controls. 171</p> 172<a name="index-MIPS-cyclic-redundancy-check-_0028CRC_0029-instruction-generation-override"></a> 173<a name="index-_002eset-crc"></a> 174<a name="index-_002eset-nocrc"></a> 175<p>The directive <code>.set crc</code> makes the assembler accept instructions 176from the CRC Extension from that point on in the assembly. The 177<code>.set nocrc</code> directive prevents CRC instructions from being accepted. 178</p> 179<a name="index-MIPS-Global-INValidate-_0028GINV_0029-instruction-generation-override"></a> 180<a name="index-_002eset-ginv"></a> 181<a name="index-_002eset-noginv"></a> 182<p>The directive <code>.set ginv</code> makes the assembler accept instructions 183from the GINV Extension from that point on in the assembly. The 184<code>.set noginv</code> directive prevents GINV instructions from being accepted. 185</p> 186<a name="index-Loongson-MultiMedia-extensions-Instructions-_0028MMI_0029-generation-override"></a> 187<a name="index-_002eset-loongson_002dmmi"></a> 188<a name="index-_002eset-noloongson_002dmmi"></a> 189<p>The directive <code>.set loongson-mmi</code> makes the assembler accept 190instructions from the MMI Extension from that point on in the assembly. 191The <code>.set noloongson-mmi</code> directive prevents MMI instructions from 192being accepted. 193</p> 194<a name="index-Loongson-Content-Address-Memory-_0028CAM_0029-generation-override"></a> 195<a name="index-_002eset-loongson_002dcam"></a> 196<a name="index-_002eset-noloongson_002dcam"></a> 197<p>The directive <code>.set loongson-cam</code> makes the assembler accept 198instructions from the Loongson CAM from that point on in the assembly. 199The <code>.set noloongson-cam</code> directive prevents Loongson CAM instructions 200from being accepted. 201</p> 202<a name="index-Loongson-EXTensions-_0028EXT_0029-instructions-generation-override"></a> 203<a name="index-_002eset-loongson_002dext"></a> 204<a name="index-_002eset-noloongson_002dext"></a> 205<p>The directive <code>.set loongson-ext</code> makes the assembler accept 206instructions from the Loongson EXT from that point on in the assembly. 207The <code>.set noloongson-ext</code> directive prevents Loongson EXT instructions 208from being accepted. 209</p> 210<a name="index-Loongson-EXTensions-R2-_0028EXT2_0029-instructions-generation-override"></a> 211<a name="index-_002eset-loongson_002dext2"></a> 212<a name="index-_002eset-noloongson_002dext2"></a> 213<p>The directive <code>.set loongson-ext2</code> makes the assembler accept 214instructions from the Loongson EXT2 from that point on in the assembly. 215This directive implies <code>.set loognson-ext</code>. 216The <code>.set noloongson-ext2</code> directive prevents Loongson EXT2 instructions 217from being accepted. 218</p> 219<p>Traditional MIPS assemblers do not support these directives. 220</p> 221<hr> 222<div class="header"> 223<p> 224Next: <a href="MIPS-Floating_002dPoint.html#MIPS-Floating_002dPoint" accesskey="n" rel="next">MIPS Floating-Point</a>, Previous: <a href="MIPS-Option-Stack.html#MIPS-Option-Stack" accesskey="p" rel="previous">MIPS Option Stack</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> 225</div> 226 227 228 229</body> 230</html> 231