1<html lang="en"> 2<head> 3<title>H8/300 Options - Using the GNU Compiler Collection (GCC)</title> 4<meta http-equiv="Content-Type" content="text/html"> 5<meta name="description" content="Using the GNU Compiler Collection (GCC)"> 6<meta name="generator" content="makeinfo 4.13"> 7<link title="Top" rel="start" href="index.html#Top"> 8<link rel="up" href="Submodel-Options.html#Submodel-Options" title="Submodel Options"> 9<link rel="prev" href="GNU_002fLinux-Options.html#GNU_002fLinux-Options" title="GNU/Linux Options"> 10<link rel="next" href="HPPA-Options.html#HPPA-Options" title="HPPA Options"> 11<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> 12<!-- 13Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 141998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 152010 Free Software Foundation, Inc. 16 17Permission is granted to copy, distribute and/or modify this document 18under the terms of the GNU Free Documentation License, Version 1.3 or 19any later version published by the Free Software Foundation; with the 20Invariant Sections being ``Funding Free Software'', the Front-Cover 21Texts being (a) (see below), and with the Back-Cover Texts being (b) 22(see below). A copy of the license is included in the section entitled 23``GNU Free Documentation License''. 24 25(a) The FSF's Front-Cover Text is: 26 27 A GNU Manual 28 29(b) The FSF's Back-Cover Text is: 30 31 You have freedom to copy and modify this GNU Manual, like GNU 32 software. Copies published by the Free Software Foundation raise 33 funds for GNU development.--> 34<meta http-equiv="Content-Style-Type" content="text/css"> 35<style type="text/css"><!-- 36 pre.display { font-family:inherit } 37 pre.format { font-family:inherit } 38 pre.smalldisplay { font-family:inherit; font-size:smaller } 39 pre.smallformat { font-family:inherit; font-size:smaller } 40 pre.smallexample { font-size:smaller } 41 pre.smalllisp { font-size:smaller } 42 span.sc { font-variant:small-caps } 43 span.roman { font-family:serif; font-weight:normal; } 44 span.sansserif { font-family:sans-serif; font-weight:normal; } 45--></style> 46<link rel="stylesheet" type="text/css" href="../cs.css"> 47</head> 48<body> 49<div class="node"> 50<a name="H8%2f300-Options"></a> 51<a name="H8_002f300-Options"></a> 52<p> 53Next: <a rel="next" accesskey="n" href="HPPA-Options.html#HPPA-Options">HPPA Options</a>, 54Previous: <a rel="previous" accesskey="p" href="GNU_002fLinux-Options.html#GNU_002fLinux-Options">GNU/Linux Options</a>, 55Up: <a rel="up" accesskey="u" href="Submodel-Options.html#Submodel-Options">Submodel Options</a> 56<hr> 57</div> 58 59<h4 class="subsection">3.17.13 H8/300 Options</h4> 60 61<p>These ‘<samp><span class="samp">-m</span></samp>’ options are defined for the H8/300 implementations: 62 63 <dl> 64<dt><code>-mrelax</code><dd><a name="index-mrelax-1299"></a>Shorten some address references at link time, when possible; uses the 65linker option <samp><span class="option">-relax</span></samp>. See <a href="../ld/H8_002f300.html#H8_002f300"><code>ld</code> and the H8/300</a>, for a fuller description. 66 67 <br><dt><code>-mh</code><dd><a name="index-mh-1300"></a>Generate code for the H8/300H. 68 69 <br><dt><code>-ms</code><dd><a name="index-ms-1301"></a>Generate code for the H8S. 70 71 <br><dt><code>-mn</code><dd><a name="index-mn-1302"></a>Generate code for the H8S and H8/300H in the normal mode. This switch 72must be used either with <samp><span class="option">-mh</span></samp> or <samp><span class="option">-ms</span></samp>. 73 74 <br><dt><code>-ms2600</code><dd><a name="index-ms2600-1303"></a>Generate code for the H8S/2600. This switch must be used with <samp><span class="option">-ms</span></samp>. 75 76 <br><dt><code>-mint32</code><dd><a name="index-mint32-1304"></a>Make <code>int</code> data 32 bits by default. 77 78 <br><dt><code>-malign-300</code><dd><a name="index-malign_002d300-1305"></a>On the H8/300H and H8S, use the same alignment rules as for the H8/300. 79The default for the H8/300H and H8S is to align longs and floats on 4 80byte boundaries. 81<samp><span class="option">-malign-300</span></samp> causes them to be aligned on 2 byte boundaries. 82This option has no effect on the H8/300. 83</dl> 84 85 </body></html> 86 87