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94 lines
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94 lines
5.0 KiB
HTML
15 years ago
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<title>V850 Options - Using as</title>
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="V850_002dDependent.html#V850_002dDependent" title="V850-Dependent">
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<link rel="next" href="V850-Syntax.html#V850-Syntax" title="V850 Syntax">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
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2006, 2007 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 1.1
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.
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<body>
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<div class="node">
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<p>
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<a name="V850-Options"></a>Next: <a rel="next" accesskey="n" href="V850-Syntax.html#V850-Syntax">V850 Syntax</a>,
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Up: <a rel="up" accesskey="u" href="V850_002dDependent.html#V850_002dDependent">V850-Dependent</a>
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<hr><br>
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</div>
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<h4 class="subsection">9.35.1 Options</h4>
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<p><a name="index-V850-options-_0028none_0029-1783"></a><a name="index-options-for-V850-_0028none_0029-1784"></a><code>as</code> supports the following additional command-line options
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for the V850 processor family:
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<p><a name="index-command-line-options_002c-V850-1785"></a><a name="index-V850-command-line-options-1786"></a>
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<a name="index-_0040code_007b_002dwsigned_005foverflow_007d-command-line-option_002c-V850-1787"></a>
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<dl><dt><code>-wsigned_overflow</code><dd>Causes warnings to be produced when signed immediate values overflow the
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space available for then within their opcodes. By default this option
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is disabled as it is possible to receive spurious warnings due to using
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exact bit patterns as immediate constants.
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<p><a name="index-_0040code_007b_002dwunsigned_005foverflow_007d-command-line-option_002c-V850-1788"></a><br><dt><code>-wunsigned_overflow</code><dd>Causes warnings to be produced when unsigned immediate values overflow
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the space available for then within their opcodes. By default this
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option is disabled as it is possible to receive spurious warnings due to
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using exact bit patterns as immediate constants.
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<p><a name="index-_0040code_007b_002dmv850_007d-command-line-option_002c-V850-1789"></a><br><dt><code>-mv850</code><dd>Specifies that the assembled code should be marked as being targeted at
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the V850 processor. This allows the linker to detect attempts to link
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such code with code assembled for other processors.
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<p><a name="index-_0040code_007b_002dmv850e_007d-command-line-option_002c-V850-1790"></a><br><dt><code>-mv850e</code><dd>Specifies that the assembled code should be marked as being targeted at
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the V850E processor. This allows the linker to detect attempts to link
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such code with code assembled for other processors.
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<p><a name="index-_0040code_007b_002dmv850e1_007d-command-line-option_002c-V850-1791"></a><br><dt><code>-mv850e1</code><dd>Specifies that the assembled code should be marked as being targeted at
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the V850E1 processor. This allows the linker to detect attempts to link
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such code with code assembled for other processors.
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<p><a name="index-_0040code_007b_002dmv850any_007d-command-line-option_002c-V850-1792"></a><br><dt><code>-mv850any</code><dd>Specifies that the assembled code should be marked as being targeted at
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the V850 processor but support instructions that are specific to the
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extended variants of the process. This allows the production of
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binaries that contain target specific code, but which are also intended
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to be used in a generic fashion. For example libgcc.a contains generic
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routines used by the code produced by GCC for all versions of the v850
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architecture, together with support routines only used by the V850E
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architecture.
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<p><a name="index-_0040code_007b_002dmrelax_007d-command-line-option_002c-V850-1793"></a><br><dt><code>-mrelax</code><dd>Enables relaxation. This allows the .longcall and .longjump pseudo
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ops to be used in the assembler source code. These ops label sections
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of code which are either a long function call or a long branch. The
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assembler will then flag these sections of code and the linker will
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attempt to relax them.
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</dl>
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</body></html>
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