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116 lines
4.9 KiB
HTML
116 lines
4.9 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2018 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Funding Free Software", the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>M32C Options (Using the GNU Compiler Collection (GCC))</title>
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<meta name="description" content="M32C Options (Using the GNU Compiler Collection (GCC))">
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<meta name="keywords" content="M32C Options (Using the GNU Compiler Collection (GCC))">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Submodel-Options.html#Submodel-Options" rel="up" title="Submodel Options">
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<link href="M32R_002fD-Options.html#M32R_002fD-Options" rel="next" title="M32R/D Options">
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<link href="LM32-Options.html#LM32-Options" rel="prev" title="LM32 Options">
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<style type="text/css">
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-->
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</style>
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</head>
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<body lang="en">
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<a name="M32C-Options"></a>
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<div class="header">
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<p>
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Next: <a href="M32R_002fD-Options.html#M32R_002fD-Options" accesskey="n" rel="next">M32R/D Options</a>, Previous: <a href="LM32-Options.html#LM32-Options" accesskey="p" rel="prev">LM32 Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="M32C-Options-1"></a>
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<h4 class="subsection">3.18.20 M32C Options</h4>
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<a name="index-M32C-options"></a>
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<dl compact="compact">
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<dt><code>-mcpu=<var>name</var></code></dt>
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<dd><a name="index-mcpu_003d-1"></a>
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<p>Select the CPU for which code is generated. <var>name</var> may be one of
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‘<samp>r8c</samp>’ for the R8C/Tiny series, ‘<samp>m16c</samp>’ for the M16C (up to
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/60) series, ‘<samp>m32cm</samp>’ for the M16C/80 series, or ‘<samp>m32c</samp>’ for
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the M32C/80 series.
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</p>
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</dd>
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<dt><code>-msim</code></dt>
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<dd><a name="index-msim-4"></a>
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<p>Specifies that the program will be run on the simulator. This causes
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an alternate runtime library to be linked in which supports, for
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example, file I/O. You must not use this option when generating
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programs that will run on real hardware; you must provide your own
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runtime library for whatever I/O functions are needed.
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</p>
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</dd>
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<dt><code>-memregs=<var>number</var></code></dt>
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<dd><a name="index-memregs_003d"></a>
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<p>Specifies the number of memory-based pseudo-registers GCC uses
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during code generation. These pseudo-registers are used like real
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registers, so there is a tradeoff between GCC’s ability to fit the
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code into available registers, and the performance penalty of using
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memory instead of registers. Note that all modules in a program must
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be compiled with the same value for this option. Because of that, you
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must not use this option with GCC’s default runtime libraries.
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</p>
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</dd>
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</dl>
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</body>
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</html>
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