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: S12Z Options</title> 17 18<meta name="description" content="Using as: S12Z Options"> 19<meta name="keywords" content="Using as: S12Z 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="S12Z_002dDependent.html#S12Z_002dDependent" rel="up" title="S12Z-Dependent"> 28<link href="S12Z-Syntax.html#S12Z-Syntax" rel="next" title="S12Z Syntax"> 29<link href="S12Z_002dDependent.html#S12Z_002dDependent" rel="previous" title="S12Z-Dependent"> 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="S12Z-Options"></a> 64<div class="header"> 65<p> 66Next: <a href="S12Z-Syntax.html#S12Z-Syntax" accesskey="n" rel="next">S12Z Syntax</a>, Up: <a href="S12Z_002dDependent.html#S12Z_002dDependent" accesskey="u" rel="up">S12Z-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="S12Z-Options-1"></a> 70<h4 class="subsection">9.24.1 S12Z Options</h4> 71 72<a name="index-options_002c-S12Z"></a> 73<a name="index-S12Z-options"></a> 74 75<p>The S12Z version of <code>as</code> recognizes the following options: 76</p> 77<dl compact="compact"> 78<dt>‘<samp>-mreg-prefix=<var>prefix</var></samp>’</dt> 79<dd><a name="index-_002dmreg_002dprefix_003dprefix-option_002c-reg_002dprefix"></a> 80<p>You can use the ‘<samp>-mreg-prefix=<var>pfx</var></samp>’ option to indicate 81that the assembler should expect all register names to be prefixed with the 82string <var>pfx</var>. 83</p> 84<p>For an explanation of what this means and why it might be needed, 85see <a href="S12Z-Register-Notation.html#S12Z-Register-Notation">S12Z Register Notation</a>. 86</p> 87 88</dd> 89<dt>‘<samp>-mdollar-hex</samp>’</dt> 90<dd><a name="index-_002dmdollar_002dhex-option_002c-dollar_002dhex"></a> 91<a name="index-hexadecimal-prefix_002c-S12Z"></a> 92<p>The ‘<samp>-mdollar-hex</samp>’ option affects the way that literal hexadecimal constants 93are represented. When this option is specified, the assembler will consider 94the ‘<samp>$</samp>’ character as the start of a hexadecimal integer constant. Without 95this option, the standard value of ‘<samp>0x</samp>’ is expected. 96</p> 97<p>If you use this option, then you cannot have symbol names starting with ‘<samp>$</samp>’. 98‘<samp>-mdollar-hex</samp>’ is implied if the ‘<samp>--traditional-format</samp>’ 99(see <a href="traditional_002dformat.html#traditional_002dformat">traditional-format</a>) is used. 100</p></dd> 101</dl> 102 103 104 105 106</body> 107</html> 108