781 lines
40 KiB
HTML
781 lines
40 KiB
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<html lang="en">
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<head>
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<title>Overview - Using as</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using as">
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<meta name="generator" content="makeinfo 4.7">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="prev" href="index.html#Top" title="Top">
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<link rel="next" href="Invoking.html#Invoking" title="Invoking">
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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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man end-->
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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family: serif; font-weight: normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<p>
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<a name="Overview"></a>Next: <a rel="next" accesskey="n" href="Invoking.html#Invoking">Invoking</a>,
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Previous: <a rel="previous" accesskey="p" href="index.html#Top">Top</a>,
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Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
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<hr><br>
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</div>
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<h2 class="chapter">1 Overview</h2>
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<p><a name="index-invocation-summary-1"></a><a name="index-option-summary-2"></a><a name="index-summary-of-options-3"></a>Here is a brief summary of how to invoke <span class="command">as</span>. For details,
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see <a href="Invoking.html#Invoking">Command-Line Options</a>.
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<!-- man title AS the portable GNU assembler. -->
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<!-- We don't use deffn and friends for the following because they seem -->
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<!-- to be limited to one line for the header. -->
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<pre class="smallexample"> <!-- man begin SYNOPSIS -->
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as [<b>-a</b>[<b>cdghlns</b>][=<var>file</var>]] [<b>--alternate</b>] [<b>-D</b>]
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[<b>--debug-prefix-map</b> <var>old</var>=<var>new</var>]
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[<b>--defsym</b> <var>sym</var>=<var>val</var>] [<b>-f</b>] [<b>-g</b>] [<b>--gstabs</b>]
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[<b>--gstabs+</b>] [<b>--gdwarf-2</b>] [<b>--help</b>] [<b>-I</b> <var>dir</var>] [<b>-J</b>]
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[<b>-K</b>] [<b>-L</b>] [<b>--listing-lhs-width</b>=<var>NUM</var>]
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[<b>--listing-lhs-width2</b>=<var>NUM</var>] [<b>--listing-rhs-width</b>=<var>NUM</var>]
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[<b>--listing-cont-lines</b>=<var>NUM</var>] [<b>--keep-locals</b>] [<b>-o</b>
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<var>objfile</var>] [<b>-R</b>] [<b>--reduce-memory-overheads</b>] [<b>--statistics</b>]
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[<b>-v</b>] [<b>-version</b>] [<b>--version</b>] [<b>-W</b>] [<b>--warn</b>]
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[<b>--fatal-warnings</b>] [<b>-w</b>] [<b>-x</b>] [<b>-Z</b>] [<b>@</b><var>FILE</var>]
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[<b>--target-help</b>] [<var>target-options</var>]
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[<b>--</b>|<var>files</var> ...]
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<!-- Target dependent options are listed below. Keep the list sorted. -->
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<!-- Add an empty line for separation. -->
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<em>Target Alpha options:</em>
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[<b>-m</b><var>cpu</var>]
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[<b>-mdebug</b> | <b>-no-mdebug</b>]
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[<b>-relax</b>] [<b>-g</b>] [<b>-G</b><var>size</var>]
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[<b>-F</b>] [<b>-32addr</b>]
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<em>Target ARC options:</em>
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[<b>-marc[5|6|7|8]</b>]
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[<b>-EB</b>|<b>-EL</b>]
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<em>Target ARM options:</em>
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<!-- Don't document the deprecated options -->
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[<b>-mcpu</b>=<var>processor</var>[+<var>extension</var>...]]
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[<b>-march</b>=<var>architecture</var>[+<var>extension</var>...]]
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[<b>-mfpu</b>=<var>floating-point-format</var>]
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[<b>-mfloat-abi</b>=<var>abi</var>]
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[<b>-meabi</b>=<var>ver</var>]
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[<b>-mthumb</b>]
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[<b>-EB</b>|<b>-EL</b>]
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[<b>-mapcs-32</b>|<b>-mapcs-26</b>|<b>-mapcs-float</b>|
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<b>-mapcs-reentrant</b>]
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[<b>-mthumb-interwork</b>] [<b>-k</b>]
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<em>Target CRIS options:</em>
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[<b>--underscore</b> | <b>--no-underscore</b>]
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[<b>--pic</b>] [<b>-N</b>]
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[<b>--emulation=criself</b> | <b>--emulation=crisaout</b>]
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[<b>--march=v0_v10</b> | <b>--march=v10</b> | <b>--march=v32</b> | <b>--march=common_v10_v32</b>]
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<!-- Deprecated - deliberately not documented. -->
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<!-- [@b{-h}] [@b{-H}] -->
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<em>Target D10V options:</em>
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[<b>-O</b>]
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<em>Target D30V options:</em>
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[<b>-O</b>|<b>-n</b>|<b>-N</b>]
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<em>Target H8/300 options:</em>
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[-h-tick-hex]
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<!-- HPPA has no machine-dependent assembler options (yet). -->
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<em>Target i386 options:</em>
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[<b>--32</b>|<b>--64</b>] [<b>-n</b>]
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[<b>-march</b>=<var>CPU</var>[+<var>EXTENSION</var>...]] [<b>-mtune</b>=<var>CPU</var>]
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<em>Target i960 options:</em>
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<!-- see md_parse_option in tc-i960.c -->
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[<b>-ACA</b>|<b>-ACA_A</b>|<b>-ACB</b>|<b>-ACC</b>|<b>-AKA</b>|<b>-AKB</b>|
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<b>-AKC</b>|<b>-AMC</b>]
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[<b>-b</b>] [<b>-no-relax</b>]
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<em>Target IA-64 options:</em>
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[<b>-mconstant-gp</b>|<b>-mauto-pic</b>]
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[<b>-milp32</b>|<b>-milp64</b>|<b>-mlp64</b>|<b>-mp64</b>]
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[<b>-mle</b>|<b>mbe</b>]
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[<b>-mtune=itanium1</b>|<b>-mtune=itanium2</b>]
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[<b>-munwind-check=warning</b>|<b>-munwind-check=error</b>]
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[<b>-mhint.b=ok</b>|<b>-mhint.b=warning</b>|<b>-mhint.b=error</b>]
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[<b>-x</b>|<b>-xexplicit</b>] [<b>-xauto</b>] [<b>-xdebug</b>]
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<em>Target IP2K options:</em>
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[<b>-mip2022</b>|<b>-mip2022ext</b>]
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<em>Target M32C options:</em>
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[<b>-m32c</b>|<b>-m16c</b>] [-relax] [-h-tick-hex]
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<em>Target M32R options:</em>
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[<b>--m32rx</b>|<b>--[no-]warn-explicit-parallel-conflicts</b>|
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<b>--W[n]p</b>]
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<em>Target M680X0 options:</em>
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[<b>-l</b>] [<b>-m68000</b>|<b>-m68010</b>|<b>-m68020</b>|...]
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<em>Target M68HC11 options:</em>
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[<b>-m68hc11</b>|<b>-m68hc12</b>|<b>-m68hcs12</b>]
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[<b>-mshort</b>|<b>-mlong</b>]
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[<b>-mshort-double</b>|<b>-mlong-double</b>]
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[<b>--force-long-branches</b>] [<b>--short-branches</b>]
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[<b>--strict-direct-mode</b>] [<b>--print-insn-syntax</b>]
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[<b>--print-opcodes</b>] [<b>--generate-example</b>]
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<em>Target MCORE options:</em>
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[<b>-jsri2bsr</b>] [<b>-sifilter</b>] [<b>-relax</b>]
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[<b>-mcpu=[210|340]</b>]
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<em>Target MIPS options:</em>
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[<b>-nocpp</b>] [<b>-EL</b>] [<b>-EB</b>] [<b>-O</b>[<var>optimization level</var>]]
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[<b>-g</b>[<var>debug level</var>]] [<b>-G</b> <var>num</var>] [<b>-KPIC</b>] [<b>-call_shared</b>]
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[<b>-non_shared</b>] [<b>-xgot</b> [<b>-mvxworks-pic</b>]
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[<b>-mabi</b>=<var>ABI</var>] [<b>-32</b>] [<b>-n32</b>] [<b>-64</b>] [<b>-mfp32</b>] [<b>-mgp32</b>]
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[<b>-march</b>=<var>CPU</var>] [<b>-mtune</b>=<var>CPU</var>] [<b>-mips1</b>] [<b>-mips2</b>]
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[<b>-mips3</b>] [<b>-mips4</b>] [<b>-mips5</b>] [<b>-mips32</b>] [<b>-mips32r2</b>]
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[<b>-mips64</b>] [<b>-mips64r2</b>]
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[<b>-construct-floats</b>] [<b>-no-construct-floats</b>]
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[<b>-trap</b>] [<b>-no-break</b>] [<b>-break</b>] [<b>-no-trap</b>]
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[<b>-mfix7000</b>] [<b>-mno-fix7000</b>]
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[<b>-mips16</b>] [<b>-no-mips16</b>]
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[<b>-msmartmips</b>] [<b>-mno-smartmips</b>]
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[<b>-mips3d</b>] [<b>-no-mips3d</b>]
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[<b>-mdmx</b>] [<b>-no-mdmx</b>]
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[<b>-mdsp</b>] [<b>-mno-dsp</b>]
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[<b>-mdspr2</b>] [<b>-mno-dspr2</b>]
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[<b>-mmt</b>] [<b>-mno-mt</b>]
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[<b>-mdebug</b>] [<b>-no-mdebug</b>]
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[<b>-mpdr</b>] [<b>-mno-pdr</b>]
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<em>Target MMIX options:</em>
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[<b>--fixed-special-register-names</b>] [<b>--globalize-symbols</b>]
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[<b>--gnu-syntax</b>] [<b>--relax</b>] [<b>--no-predefined-symbols</b>]
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[<b>--no-expand</b>] [<b>--no-merge-gregs</b>] [<b>-x</b>]
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[<b>--linker-allocated-gregs</b>]
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<em>Target PDP11 options:</em>
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[<b>-mpic</b>|<b>-mno-pic</b>] [<b>-mall</b>] [<b>-mno-extensions</b>]
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[<b>-m</b><var>extension</var>|<b>-mno-</b><var>extension</var>]
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[<b>-m</b><var>cpu</var>] [<b>-m</b><var>machine</var>]
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<em>Target picoJava options:</em>
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[<b>-mb</b>|<b>-me</b>]
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<em>Target PowerPC options:</em>
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[<b>-mpwrx</b>|<b>-mpwr2</b>|<b>-mpwr</b>|<b>-m601</b>|<b>-mppc</b>|<b>-mppc32</b>|<b>-m603</b>|<b>-m604</b>|
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<b>-m403</b>|<b>-m405</b>|<b>-mppc64</b>|<b>-m620</b>|<b>-mppc64bridge</b>|<b>-mbooke</b>|
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<b>-mbooke32</b>|<b>-mbooke64</b>]
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[<b>-mcom</b>|<b>-many</b>|<b>-maltivec</b>|<b>-mvsx</b>] [<b>-memb</b>]
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[<b>-mregnames</b>|<b>-mno-regnames</b>]
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[<b>-mrelocatable</b>|<b>-mrelocatable-lib</b>]
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[<b>-mlittle</b>|<b>-mlittle-endian</b>|<b>-mbig</b>|<b>-mbig-endian</b>]
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[<b>-msolaris</b>|<b>-mno-solaris</b>]
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<em>Target SPARC options:</em>
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<!-- The order here is important. See c-sparc.texi. -->
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[<b>-Av6</b>|<b>-Av7</b>|<b>-Av8</b>|<b>-Asparclet</b>|<b>-Asparclite</b>
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<b>-Av8plus</b>|<b>-Av8plusa</b>|<b>-Av9</b>|<b>-Av9a</b>]
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[<b>-xarch=v8plus</b>|<b>-xarch=v8plusa</b>] [<b>-bump</b>]
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[<b>-32</b>|<b>-64</b>]
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<em>Target TIC54X options:</em>
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[<b>-mcpu=54[123589]</b>|<b>-mcpu=54[56]lp</b>] [<b>-mfar-mode</b>|<b>-mf</b>]
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[<b>-merrors-to-file</b> <var><filename></var>|<b>-me</b> <var><filename></var>]
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<em>Target Z80 options:</em>
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[<b>-z80</b>] [<b>-r800</b>]
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[<b> -ignore-undocumented-instructions</b>] [<b>-Wnud</b>]
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[<b> -ignore-unportable-instructions</b>] [<b>-Wnup</b>]
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[<b> -warn-undocumented-instructions</b>] [<b>-Wud</b>]
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[<b> -warn-unportable-instructions</b>] [<b>-Wup</b>]
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[<b> -forbid-undocumented-instructions</b>] [<b>-Fud</b>]
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[<b> -forbid-unportable-instructions</b>] [<b>-Fup</b>]
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<!-- Z8000 has no machine-dependent assembler options -->
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<em>Target Xtensa options:</em>
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[<b>--[no-]text-section-literals</b>] [<b>--[no-]absolute-literals</b>]
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[<b>--[no-]target-align</b>] [<b>--[no-]longcalls</b>]
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[<b>--[no-]transform</b>]
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[<b>--rename-section</b> <var>oldname</var>=<var>newname</var>]
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<!-- man end -->
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</pre>
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<!-- man begin OPTIONS -->
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<dl>
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<!-- This file is designed to be included in manuals that use -->
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<!-- expandargv. -->
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<dt><code>@</code><var>file</var><dd>Read command-line options from <var>file</var>. The options read are
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inserted in place of the original @<var>file</var> option. If <var>file</var>
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does not exist, or cannot be read, then the option will be treated
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literally, and not removed.
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<p>Options in <var>file</var> are separated by whitespace. A whitespace
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character may be included in an option by surrounding the entire
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option in either single or double quotes. Any character (including a
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backslash) may be included by prefixing the character to be included
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with a backslash. The <var>file</var> may itself contain additional
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@<var>file</var> options; any such options will be processed recursively.
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<br><dt><code>-a[cdghlmns]</code><dd>Turn on listings, in any of a variety of ways:
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<dl>
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<dt><code>-ac</code><dd>omit false conditionals
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<br><dt><code>-ad</code><dd>omit debugging directives
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<br><dt><code>-ag</code><dd>include general information, like as version and options passed
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<br><dt><code>-ah</code><dd>include high-level source
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<br><dt><code>-al</code><dd>include assembly
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<br><dt><code>-am</code><dd>include macro expansions
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<br><dt><code>-an</code><dd>omit forms processing
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|
|
<br><dt><code>-as</code><dd>include symbols
|
||
|
|
|
||
|
|
<br><dt><code>=file</code><dd>set the name of the listing file
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>You may combine these options; for example, use <span class="samp">-aln</span> for assembly
|
||
|
|
listing without forms processing. The <span class="samp">=file</span> option, if used, must be
|
||
|
|
the last one. By itself, <span class="samp">-a</span> defaults to <span class="samp">-ahls</span>.
|
||
|
|
|
||
|
|
<br><dt><code>--alternate</code><dd>Begin in alternate macro mode.
|
||
|
|
See <a href="Altmacro.html#Altmacro"><code>.altmacro</code></a>.
|
||
|
|
|
||
|
|
<br><dt><code>-D</code><dd>Ignored. This option is accepted for script compatibility with calls to
|
||
|
|
other assemblers.
|
||
|
|
|
||
|
|
<br><dt><code>--debug-prefix-map </code><var>old</var><code>=</code><var>new</var><dd>When assembling files in directory <var>old</var>, record debugging
|
||
|
|
information describing them as in <var>new</var> instead.
|
||
|
|
|
||
|
|
<br><dt><code>--defsym </code><var>sym</var><code>=</code><var>value</var><dd>Define the symbol <var>sym</var> to be <var>value</var> before assembling the input file.
|
||
|
|
<var>value</var> must be an integer constant. As in C, a leading <span class="samp">0x</span>
|
||
|
|
indicates a hexadecimal value, and a leading <span class="samp">0</span> indicates an octal
|
||
|
|
value. The value of the symbol can be overridden inside a source file via the
|
||
|
|
use of a <code>.set</code> pseudo-op.
|
||
|
|
|
||
|
|
<br><dt><code>-f</code><dd>“fast”—skip whitespace and comment preprocessing (assume source is
|
||
|
|
compiler output).
|
||
|
|
|
||
|
|
<br><dt><code>-g</code><dt><code>--gen-debug</code><dd>Generate debugging information for each assembler source line using whichever
|
||
|
|
debug format is preferred by the target. This currently means either STABS,
|
||
|
|
ECOFF or DWARF2.
|
||
|
|
|
||
|
|
<br><dt><code>--gstabs</code><dd>Generate stabs debugging information for each assembler line. This
|
||
|
|
may help debugging assembler code, if the debugger can handle it.
|
||
|
|
|
||
|
|
<br><dt><code>--gstabs+</code><dd>Generate stabs debugging information for each assembler line, with GNU
|
||
|
|
extensions that probably only gdb can handle, and that could make other
|
||
|
|
debuggers crash or refuse to read your program. This
|
||
|
|
may help debugging assembler code. Currently the only GNU extension is
|
||
|
|
the location of the current working directory at assembling time.
|
||
|
|
|
||
|
|
<br><dt><code>--gdwarf-2</code><dd>Generate DWARF2 debugging information for each assembler line. This
|
||
|
|
may help debugging assembler code, if the debugger can handle it. Note—this
|
||
|
|
option is only supported by some targets, not all of them.
|
||
|
|
|
||
|
|
<br><dt><code>--help</code><dd>Print a summary of the command line options and exit.
|
||
|
|
|
||
|
|
<br><dt><code>--target-help</code><dd>Print a summary of all target specific options and exit.
|
||
|
|
|
||
|
|
<br><dt><code>-I </code><var>dir</var><dd>Add directory <var>dir</var> to the search list for <code>.include</code> directives.
|
||
|
|
|
||
|
|
<br><dt><code>-J</code><dd>Don't warn about signed overflow.
|
||
|
|
|
||
|
|
<br><dt><code>-K</code><dd>Issue warnings when difference tables altered for long displacements.
|
||
|
|
|
||
|
|
<br><dt><code>-L</code><dt><code>--keep-locals</code><dd>Keep (in the symbol table) local symbols. These symbols start with
|
||
|
|
system-specific local label prefixes, typically <span class="samp">.L</span> for ELF systems
|
||
|
|
or <span class="samp">L</span> for traditional a.out systems.
|
||
|
|
See <a href="Symbol-Names.html#Symbol-Names">Symbol Names</a>.
|
||
|
|
|
||
|
|
<br><dt><code>--listing-lhs-width=</code><var>number</var><dd>Set the maximum width, in words, of the output data column for an assembler
|
||
|
|
listing to <var>number</var>.
|
||
|
|
|
||
|
|
<br><dt><code>--listing-lhs-width2=</code><var>number</var><dd>Set the maximum width, in words, of the output data column for continuation
|
||
|
|
lines in an assembler listing to <var>number</var>.
|
||
|
|
|
||
|
|
<br><dt><code>--listing-rhs-width=</code><var>number</var><dd>Set the maximum width of an input source line, as displayed in a listing, to
|
||
|
|
<var>number</var> bytes.
|
||
|
|
|
||
|
|
<br><dt><code>--listing-cont-lines=</code><var>number</var><dd>Set the maximum number of lines printed in a listing for a single line of input
|
||
|
|
to <var>number</var> + 1.
|
||
|
|
|
||
|
|
<br><dt><code>-o </code><var>objfile</var><dd>Name the object-file output from <span class="command">as</span> <var>objfile</var>.
|
||
|
|
|
||
|
|
<br><dt><code>-R</code><dd>Fold the data section into the text section.
|
||
|
|
|
||
|
|
<p><a name="index-_002d_002dhash_002dsize_003d_0040var_007bnumber_007d-4"></a>Set the default size of GAS's hash tables to a prime number close to
|
||
|
|
<var>number</var>. Increasing this value can reduce the length of time it takes the
|
||
|
|
assembler to perform its tasks, at the expense of increasing the assembler's
|
||
|
|
memory requirements. Similarly reducing this value can reduce the memory
|
||
|
|
requirements at the expense of speed.
|
||
|
|
|
||
|
|
<br><dt><code>--reduce-memory-overheads</code><dd>This option reduces GAS's memory requirements, at the expense of making the
|
||
|
|
assembly processes slower. Currently this switch is a synonym for
|
||
|
|
<span class="samp">--hash-size=4051</span>, but in the future it may have other effects as well.
|
||
|
|
|
||
|
|
<br><dt><code>--statistics</code><dd>Print the maximum space (in bytes) and total time (in seconds) used by
|
||
|
|
assembly.
|
||
|
|
|
||
|
|
<br><dt><code>--strip-local-absolute</code><dd>Remove local absolute symbols from the outgoing symbol table.
|
||
|
|
|
||
|
|
<br><dt><code>-v</code><dt><code>-version</code><dd>Print the <span class="command">as</span> version.
|
||
|
|
|
||
|
|
<br><dt><code>--version</code><dd>Print the <span class="command">as</span> version and exit.
|
||
|
|
|
||
|
|
<br><dt><code>-W</code><dt><code>--no-warn</code><dd>Suppress warning messages.
|
||
|
|
|
||
|
|
<br><dt><code>--fatal-warnings</code><dd>Treat warnings as errors.
|
||
|
|
|
||
|
|
<br><dt><code>--warn</code><dd>Don't suppress warning messages or treat them as errors.
|
||
|
|
|
||
|
|
<br><dt><code>-w</code><dd>Ignored.
|
||
|
|
|
||
|
|
<br><dt><code>-x</code><dd>Ignored.
|
||
|
|
|
||
|
|
<br><dt><code>-Z</code><dd>Generate an object file even after errors.
|
||
|
|
|
||
|
|
<br><dt><code>-- | </code><var>files</var><code> ...</code><dd>Standard input, or source files to assemble.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for
|
||
|
|
an ARC processor.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-marc[5|6|7|8]</code><dd>This option selects the core processor variant.
|
||
|
|
<br><dt><code>-EB | -EL</code><dd>Select either big-endian (-EB) or little-endian (-EL) output.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the ARM
|
||
|
|
processor family.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-mcpu=</code><var>processor</var><code>[+</code><var>extension</var><code>...]</code><dd>Specify which ARM processor variant is the target.
|
||
|
|
<br><dt><code>-march=</code><var>architecture</var><code>[+</code><var>extension</var><code>...]</code><dd>Specify which ARM architecture variant is used by the target.
|
||
|
|
<br><dt><code>-mfpu=</code><var>floating-point-format</var><dd>Select which Floating Point architecture is the target.
|
||
|
|
<br><dt><code>-mfloat-abi=</code><var>abi</var><dd>Select which floating point ABI is in use.
|
||
|
|
<br><dt><code>-mthumb</code><dd>Enable Thumb only instruction decoding.
|
||
|
|
<br><dt><code>-mapcs-32 | -mapcs-26 | -mapcs-float | -mapcs-reentrant</code><dd>Select which procedure calling convention is in use.
|
||
|
|
<br><dt><code>-EB | -EL</code><dd>Select either big-endian (-EB) or little-endian (-EL) output.
|
||
|
|
<br><dt><code>-mthumb-interwork</code><dd>Specify that the code has been generated with interworking between Thumb and
|
||
|
|
ARM code in mind.
|
||
|
|
<br><dt><code>-k</code><dd>Specify that PIC code has been generated.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>See the info pages for documentation of the CRIS-specific options.
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for
|
||
|
|
a D10V processor.
|
||
|
|
|
||
|
|
<a name="index-D10V-optimization-5"></a>
|
||
|
|
<a name="index-optimization_002c-D10V-6"></a>
|
||
|
|
<dl><dt><code>-O</code><dd>Optimize output by parallelizing instructions.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for a D30V
|
||
|
|
processor.
|
||
|
|
|
||
|
|
<a name="index-D30V-optimization-7"></a>
|
||
|
|
<a name="index-optimization_002c-D30V-8"></a>
|
||
|
|
<dl><dt><code>-O</code><dd>Optimize output by parallelizing instructions.
|
||
|
|
|
||
|
|
<p><a name="index-D30V-nops-9"></a><br><dt><code>-n</code><dd>Warn when nops are generated.
|
||
|
|
|
||
|
|
<p><a name="index-D30V-nops-after-32_002dbit-multiply-10"></a><br><dt><code>-N</code><dd>Warn when a nop after a 32-bit multiply instruction is generated.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the
|
||
|
|
Intel 80960 processor.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-ACA | -ACA_A | -ACB | -ACC | -AKA | -AKB | -AKC | -AMC</code><dd>Specify which variant of the 960 architecture is the target.
|
||
|
|
|
||
|
|
<br><dt><code>-b</code><dd>Add code to collect statistics about branches taken.
|
||
|
|
|
||
|
|
<br><dt><code>-no-relax</code><dd>Do not alter compare-and-branch instructions for long displacements;
|
||
|
|
error if necessary.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the
|
||
|
|
Ubicom IP2K series.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-mip2022ext</code><dd>Specifies that the extended IP2022 instructions are allowed.
|
||
|
|
|
||
|
|
<br><dt><code>-mip2022</code><dd>Restores the default behaviour, which restricts the permitted instructions to
|
||
|
|
just the basic IP2022 ones.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the
|
||
|
|
Renesas M32C and M16C processors.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-m32c</code><dd>Assemble M32C instructions.
|
||
|
|
|
||
|
|
<br><dt><code>-m16c</code><dd>Assemble M16C instructions (the default).
|
||
|
|
|
||
|
|
<br><dt><code>-relax</code><dd>Enable support for link-time relaxations.
|
||
|
|
|
||
|
|
<br><dt><code>-h-tick-hex</code><dd>Support H'00 style hex constants in addition to 0x00 style.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the
|
||
|
|
Renesas M32R (formerly Mitsubishi M32R) series.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>--m32rx</code><dd>Specify which processor in the M32R family is the target. The default
|
||
|
|
is normally the M32R, but this option changes it to the M32RX.
|
||
|
|
|
||
|
|
<br><dt><code>--warn-explicit-parallel-conflicts or --Wp</code><dd>Produce warning messages when questionable parallel constructs are
|
||
|
|
encountered.
|
||
|
|
|
||
|
|
<br><dt><code>--no-warn-explicit-parallel-conflicts or --Wnp</code><dd>Do not produce warning messages when questionable parallel constructs are
|
||
|
|
encountered.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the
|
||
|
|
Motorola 68000 series.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-l</code><dd>Shorten references to undefined symbols, to one word instead of two.
|
||
|
|
|
||
|
|
<br><dt><code>-m68000 | -m68008 | -m68010 | -m68020 | -m68030</code><dt><code>| -m68040 | -m68060 | -m68302 | -m68331 | -m68332</code><dt><code>| -m68333 | -m68340 | -mcpu32 | -m5200</code><dd>Specify what processor in the 68000 family is the target. The default
|
||
|
|
is normally the 68020, but this can be changed at configuration time.
|
||
|
|
|
||
|
|
<br><dt><code>-m68881 | -m68882 | -mno-68881 | -mno-68882</code><dd>The target machine does (or does not) have a floating-point coprocessor.
|
||
|
|
The default is to assume a coprocessor for 68020, 68030, and cpu32. Although
|
||
|
|
the basic 68000 is not compatible with the 68881, a combination of the
|
||
|
|
two can be specified, since it's possible to do emulation of the
|
||
|
|
coprocessor instructions with the main processor.
|
||
|
|
|
||
|
|
<br><dt><code>-m68851 | -mno-68851</code><dd>The target machine does (or does not) have a memory-management
|
||
|
|
unit coprocessor. The default is to assume an MMU for 68020 and up.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>For details about the PDP-11 machine dependent features options,
|
||
|
|
see <a href="PDP_002d11_002dOptions.html#PDP_002d11_002dOptions">PDP-11-Options</a>.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-mpic | -mno-pic</code><dd>Generate position-independent (or position-dependent) code. The
|
||
|
|
default is <span class="option">-mpic</span>.
|
||
|
|
|
||
|
|
<br><dt><code>-mall</code><dt><code>-mall-extensions</code><dd>Enable all instruction set extensions. This is the default.
|
||
|
|
|
||
|
|
<br><dt><code>-mno-extensions</code><dd>Disable all instruction set extensions.
|
||
|
|
|
||
|
|
<br><dt><code>-m</code><var>extension</var><code> | -mno-</code><var>extension</var><dd>Enable (or disable) a particular instruction set extension.
|
||
|
|
|
||
|
|
<br><dt><code>-m</code><var>cpu</var><dd>Enable the instruction set extensions supported by a particular CPU, and
|
||
|
|
disable all other extensions.
|
||
|
|
|
||
|
|
<br><dt><code>-m</code><var>machine</var><dd>Enable the instruction set extensions supported by a particular machine
|
||
|
|
model, and disable all other extensions.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for
|
||
|
|
a picoJava processor.
|
||
|
|
|
||
|
|
|
||
|
|
<a name="index-PJ-endianness-11"></a>
|
||
|
|
<a name="index-endianness_002c-PJ-12"></a>
|
||
|
|
<a name="index-big-endian-output_002c-PJ-13"></a>
|
||
|
|
<dl><dt><code>-mb</code><dd>Generate “big endian” format output.
|
||
|
|
|
||
|
|
<p><a name="index-little-endian-output_002c-PJ-14"></a><br><dt><code>-ml</code><dd>Generate “little endian” format output.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the
|
||
|
|
Motorola 68HC11 or 68HC12 series.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-m68hc11 | -m68hc12 | -m68hcs12</code><dd>Specify what processor is the target. The default is
|
||
|
|
defined by the configuration option when building the assembler.
|
||
|
|
|
||
|
|
<br><dt><code>-mshort</code><dd>Specify to use the 16-bit integer ABI.
|
||
|
|
|
||
|
|
<br><dt><code>-mlong</code><dd>Specify to use the 32-bit integer ABI.
|
||
|
|
|
||
|
|
<br><dt><code>-mshort-double</code><dd>Specify to use the 32-bit double ABI.
|
||
|
|
|
||
|
|
<br><dt><code>-mlong-double</code><dd>Specify to use the 64-bit double ABI.
|
||
|
|
|
||
|
|
<br><dt><code>--force-long-branches</code><dd>Relative branches are turned into absolute ones. This concerns
|
||
|
|
conditional branches, unconditional branches and branches to a
|
||
|
|
sub routine.
|
||
|
|
|
||
|
|
<br><dt><code>-S | --short-branches</code><dd>Do not turn relative branches into absolute ones
|
||
|
|
when the offset is out of range.
|
||
|
|
|
||
|
|
<br><dt><code>--strict-direct-mode</code><dd>Do not turn the direct addressing mode into extended addressing mode
|
||
|
|
when the instruction does not support direct addressing mode.
|
||
|
|
|
||
|
|
<br><dt><code>--print-insn-syntax</code><dd>Print the syntax of instruction in case of error.
|
||
|
|
|
||
|
|
<br><dt><code>--print-opcodes</code><dd>print the list of instructions with syntax and then exit.
|
||
|
|
|
||
|
|
<br><dt><code>--generate-example</code><dd>print an example of instruction for each possible instruction and then exit.
|
||
|
|
This option is only useful for testing <span class="command">as</span>.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when <span class="command">as</span> is configured
|
||
|
|
for the SPARC architecture:
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-Av6 | -Av7 | -Av8 | -Asparclet | -Asparclite</code><dt><code>-Av8plus | -Av8plusa | -Av9 | -Av9a</code><dd>Explicitly select a variant of the SPARC architecture.
|
||
|
|
|
||
|
|
<p><span class="samp">-Av8plus</span> and <span class="samp">-Av8plusa</span> select a 32 bit environment.
|
||
|
|
<span class="samp">-Av9</span> and <span class="samp">-Av9a</span> select a 64 bit environment.
|
||
|
|
|
||
|
|
<p><span class="samp">-Av8plusa</span> and <span class="samp">-Av9a</span> enable the SPARC V9 instruction set with
|
||
|
|
UltraSPARC extensions.
|
||
|
|
|
||
|
|
<br><dt><code>-xarch=v8plus | -xarch=v8plusa</code><dd>For compatibility with the Solaris v9 assembler. These options are
|
||
|
|
equivalent to -Av8plus and -Av8plusa, respectively.
|
||
|
|
|
||
|
|
<br><dt><code>-bump</code><dd>Warn when the assembler switches to another architecture.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for the 'c54x
|
||
|
|
architecture.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-mfar-mode</code><dd>Enable extended addressing mode. All addresses and relocations will assume
|
||
|
|
extended addressing (usually 23 bits).
|
||
|
|
<br><dt><code>-mcpu=</code><var>CPU_VERSION</var><dd>Sets the CPU version being compiled for.
|
||
|
|
<br><dt><code>-merrors-to-file </code><var>FILENAME</var><dd>Redirect error output to a file, for broken systems which don't support such
|
||
|
|
behaviour in the shell.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for
|
||
|
|
a <span class="sc">mips</span> processor.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-G </code><var>num</var><dd>This option sets the largest size of an object that can be referenced
|
||
|
|
implicitly with the <code>gp</code> register. It is only accepted for targets that
|
||
|
|
use ECOFF format, such as a DECstation running Ultrix. The default value is 8.
|
||
|
|
|
||
|
|
<p><a name="index-MIPS-endianness-15"></a><a name="index-endianness_002c-MIPS-16"></a><a name="index-big-endian-output_002c-MIPS-17"></a><br><dt><code>-EB</code><dd>Generate “big endian” format output.
|
||
|
|
|
||
|
|
<p><a name="index-little-endian-output_002c-MIPS-18"></a><br><dt><code>-EL</code><dd>Generate “little endian” format output.
|
||
|
|
|
||
|
|
<p><a name="index-MIPS-ISA-19"></a><br><dt><code>-mips1</code><dt><code>-mips2</code><dt><code>-mips3</code><dt><code>-mips4</code><dt><code>-mips5</code><dt><code>-mips32</code><dt><code>-mips32r2</code><dt><code>-mips64</code><dt><code>-mips64r2</code><dd>Generate code for a particular <span class="sc">mips</span> Instruction Set Architecture level.
|
||
|
|
<span class="samp">-mips1</span> is an alias for <span class="samp">-march=r3000</span>, <span class="samp">-mips2</span> is an
|
||
|
|
alias for <span class="samp">-march=r6000</span>, <span class="samp">-mips3</span> is an alias for
|
||
|
|
<span class="samp">-march=r4000</span> and <span class="samp">-mips4</span> is an alias for <span class="samp">-march=r8000</span>.
|
||
|
|
<span class="samp">-mips5</span>, <span class="samp">-mips32</span>, <span class="samp">-mips32r2</span>, <span class="samp">-mips64</span>, and
|
||
|
|
<span class="samp">-mips64r2</span>
|
||
|
|
correspond to generic
|
||
|
|
<span class="samp">MIPS V</span>, <span class="samp">MIPS32</span>, <span class="samp">MIPS32 Release 2</span>, <span class="samp">MIPS64</span>,
|
||
|
|
and <span class="samp">MIPS64 Release 2</span>
|
||
|
|
ISA processors, respectively.
|
||
|
|
|
||
|
|
<br><dt><code>-march=</code><var>CPU</var><dd>Generate code for a particular <span class="sc">mips</span> cpu.
|
||
|
|
|
||
|
|
<br><dt><code>-mtune=</code><var>cpu</var><dd>Schedule and tune for a particular <span class="sc">mips</span> cpu.
|
||
|
|
|
||
|
|
<br><dt><code>-mfix7000</code><dt><code>-mno-fix7000</code><dd>Cause nops to be inserted if the read of the destination register
|
||
|
|
of an mfhi or mflo instruction occurs in the following two instructions.
|
||
|
|
|
||
|
|
<br><dt><code>-mdebug</code><dt><code>-no-mdebug</code><dd>Cause stabs-style debugging output to go into an ECOFF-style .mdebug
|
||
|
|
section instead of the standard ELF .stabs sections.
|
||
|
|
|
||
|
|
<br><dt><code>-mpdr</code><dt><code>-mno-pdr</code><dd>Control generation of <code>.pdr</code> sections.
|
||
|
|
|
||
|
|
<br><dt><code>-mgp32</code><dt><code>-mfp32</code><dd>The register sizes are normally inferred from the ISA and ABI, but these
|
||
|
|
flags force a certain group of registers to be treated as 32 bits wide at
|
||
|
|
all times. <span class="samp">-mgp32</span> controls the size of general-purpose registers
|
||
|
|
and <span class="samp">-mfp32</span> controls the size of floating-point registers.
|
||
|
|
|
||
|
|
<br><dt><code>-mips16</code><dt><code>-no-mips16</code><dd>Generate code for the MIPS 16 processor. This is equivalent to putting
|
||
|
|
<code>.set mips16</code> at the start of the assembly file. <span class="samp">-no-mips16</span>
|
||
|
|
turns off this option.
|
||
|
|
|
||
|
|
<br><dt><code>-msmartmips</code><dt><code>-mno-smartmips</code><dd>Enables the SmartMIPS extension to the MIPS32 instruction set. This is
|
||
|
|
equivalent to putting <code>.set smartmips</code> at the start of the assembly file.
|
||
|
|
<span class="samp">-mno-smartmips</span> turns off this option.
|
||
|
|
|
||
|
|
<br><dt><code>-mips3d</code><dt><code>-no-mips3d</code><dd>Generate code for the MIPS-3D Application Specific Extension.
|
||
|
|
This tells the assembler to accept MIPS-3D instructions.
|
||
|
|
<span class="samp">-no-mips3d</span> turns off this option.
|
||
|
|
|
||
|
|
<br><dt><code>-mdmx</code><dt><code>-no-mdmx</code><dd>Generate code for the MDMX Application Specific Extension.
|
||
|
|
This tells the assembler to accept MDMX instructions.
|
||
|
|
<span class="samp">-no-mdmx</span> turns off this option.
|
||
|
|
|
||
|
|
<br><dt><code>-mdsp</code><dt><code>-mno-dsp</code><dd>Generate code for the DSP Release 1 Application Specific Extension.
|
||
|
|
This tells the assembler to accept DSP Release 1 instructions.
|
||
|
|
<span class="samp">-mno-dsp</span> turns off this option.
|
||
|
|
|
||
|
|
<br><dt><code>-mdspr2</code><dt><code>-mno-dspr2</code><dd>Generate code for the DSP Release 2 Application Specific Extension.
|
||
|
|
This option implies -mdsp.
|
||
|
|
This tells the assembler to accept DSP Release 2 instructions.
|
||
|
|
<span class="samp">-mno-dspr2</span> turns off this option.
|
||
|
|
|
||
|
|
<br><dt><code>-mmt</code><dt><code>-mno-mt</code><dd>Generate code for the MT Application Specific Extension.
|
||
|
|
This tells the assembler to accept MT instructions.
|
||
|
|
<span class="samp">-mno-mt</span> turns off this option.
|
||
|
|
|
||
|
|
<br><dt><code>--construct-floats</code><dt><code>--no-construct-floats</code><dd>The <span class="samp">--no-construct-floats</span> option disables the construction of
|
||
|
|
double width floating point constants by loading the two halves of the
|
||
|
|
value into the two single width floating point registers that make up
|
||
|
|
the double width register. By default <span class="samp">--construct-floats</span> is
|
||
|
|
selected, allowing construction of these floating point constants.
|
||
|
|
|
||
|
|
<p><a name="index-emulation-20"></a><br><dt><code>--emulation=</code><var>name</var><dd>This option causes <span class="command">as</span> to emulate <span class="command">as</span> configured
|
||
|
|
for some other target, in all respects, including output format (choosing
|
||
|
|
between ELF and ECOFF only), handling of pseudo-opcodes which may generate
|
||
|
|
debugging information or store symbol table information, and default
|
||
|
|
endianness. The available configuration names are: <span class="samp">mipsecoff</span>,
|
||
|
|
<span class="samp">mipself</span>, <span class="samp">mipslecoff</span>, <span class="samp">mipsbecoff</span>, <span class="samp">mipslelf</span>,
|
||
|
|
<span class="samp">mipsbelf</span>. The first two do not alter the default endianness from that
|
||
|
|
of the primary target for which the assembler was configured; the others change
|
||
|
|
the default to little- or big-endian as indicated by the <span class="samp">b</span> or <span class="samp">l</span>
|
||
|
|
in the name. Using <span class="samp">-EB</span> or <span class="samp">-EL</span> will override the endianness
|
||
|
|
selection in any case.
|
||
|
|
|
||
|
|
<p>This option is currently supported only when the primary target
|
||
|
|
<span class="command">as</span> is configured for is a <span class="sc">mips</span> ELF or ECOFF target.
|
||
|
|
Furthermore, the primary target or others specified with
|
||
|
|
<span class="samp">--enable-targets=...</span> at configuration time must include support for
|
||
|
|
the other format, if both are to be available. For example, the Irix 5
|
||
|
|
configuration includes support for both.
|
||
|
|
|
||
|
|
<p>Eventually, this option will support more configurations, with more
|
||
|
|
fine-grained control over the assembler's behavior, and will be supported for
|
||
|
|
more processors.
|
||
|
|
|
||
|
|
<br><dt><code>-nocpp</code><dd><span class="command">as</span> ignores this option. It is accepted for compatibility with
|
||
|
|
the native tools.
|
||
|
|
|
||
|
|
<br><dt><code>--trap</code><dt><code>--no-trap</code><dt><code>--break</code><dt><code>--no-break</code><dd>Control how to deal with multiplication overflow and division by zero.
|
||
|
|
<span class="samp">--trap</span> or <span class="samp">--no-break</span> (which are synonyms) take a trap exception
|
||
|
|
(and only work for Instruction Set Architecture level 2 and higher);
|
||
|
|
<span class="samp">--break</span> or <span class="samp">--no-trap</span> (also synonyms, and the default) take a
|
||
|
|
break exception.
|
||
|
|
|
||
|
|
<br><dt><code>-n</code><dd>When this option is used, <span class="command">as</span> will issue a warning every
|
||
|
|
time it generates a nop instruction from a macro.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for
|
||
|
|
an MCore processor.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>-jsri2bsr</code><dt><code>-nojsri2bsr</code><dd>Enable or disable the JSRI to BSR transformation. By default this is enabled.
|
||
|
|
The command line option <span class="samp">-nojsri2bsr</span> can be used to disable it.
|
||
|
|
|
||
|
|
<br><dt><code>-sifilter</code><dt><code>-nosifilter</code><dd>Enable or disable the silicon filter behaviour. By default this is disabled.
|
||
|
|
The default can be overridden by the <span class="samp">-sifilter</span> command line option.
|
||
|
|
|
||
|
|
<br><dt><code>-relax</code><dd>Alter jump instructions for long displacements.
|
||
|
|
|
||
|
|
<br><dt><code>-mcpu=[210|340]</code><dd>Select the cpu type on the target hardware. This controls which instructions
|
||
|
|
can be assembled.
|
||
|
|
|
||
|
|
<br><dt><code>-EB</code><dd>Assemble for a big endian target.
|
||
|
|
|
||
|
|
<br><dt><code>-EL</code><dd>Assemble for a little endian target.
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>See the info pages for documentation of the MMIX-specific options.
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for
|
||
|
|
an Xtensa processor.
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><code>--text-section-literals | --no-text-section-literals</code><dd>With <span class="option">--text-section-literals</span>, literal pools are interspersed
|
||
|
|
in the text section. The default is
|
||
|
|
<span class="option">--no-text-section-literals</span>, which places literals in a
|
||
|
|
separate section in the output file. These options only affect literals
|
||
|
|
referenced via PC-relative <code>L32R</code> instructions; literals for
|
||
|
|
absolute mode <code>L32R</code> instructions are handled separately.
|
||
|
|
|
||
|
|
<br><dt><code>--absolute-literals | --no-absolute-literals</code><dd>Indicate to the assembler whether <code>L32R</code> instructions use absolute
|
||
|
|
or PC-relative addressing. The default is to assume absolute addressing
|
||
|
|
if the Xtensa processor includes the absolute <code>L32R</code> addressing
|
||
|
|
option. Otherwise, only the PC-relative <code>L32R</code> mode can be used.
|
||
|
|
|
||
|
|
<br><dt><code>--target-align | --no-target-align</code><dd>Enable or disable automatic alignment to reduce branch penalties at the
|
||
|
|
expense of some code density. The default is <span class="option">--target-align</span>.
|
||
|
|
|
||
|
|
<br><dt><code>--longcalls | --no-longcalls</code><dd>Enable or disable transformation of call instructions to allow calls
|
||
|
|
across a greater range of addresses. The default is
|
||
|
|
<span class="option">--no-longcalls</span>.
|
||
|
|
|
||
|
|
<br><dt><code>--transform | --no-transform</code><dd>Enable or disable all assembler transformations of Xtensa instructions.
|
||
|
|
The default is <span class="option">--transform</span>;
|
||
|
|
<span class="option">--no-transform</span> should be used only in the rare cases when the
|
||
|
|
instructions must be exactly as specified in the assembly source.
|
||
|
|
|
||
|
|
<br><dt><code>--rename-section </code><var>oldname</var><code>=</code><var>newname</var><dd>When generating output sections, rename the <var>oldname</var> section to
|
||
|
|
<var>newname</var>.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p>The following options are available when as is configured for
|
||
|
|
a Z80 family processor.
|
||
|
|
<dl>
|
||
|
|
<dt><code>-z80</code><dd>Assemble for Z80 processor.
|
||
|
|
<br><dt><code>-r800</code><dd>Assemble for R800 processor.
|
||
|
|
<br><dt><code>-ignore-undocumented-instructions</code><dt><code>-Wnud</code><dd>Assemble undocumented Z80 instructions that also work on R800 without warning.
|
||
|
|
<br><dt><code>-ignore-unportable-instructions</code><dt><code>-Wnup</code><dd>Assemble all undocumented Z80 instructions without warning.
|
||
|
|
<br><dt><code>-warn-undocumented-instructions</code><dt><code>-Wud</code><dd>Issue a warning for undocumented Z80 instructions that also work on R800.
|
||
|
|
<br><dt><code>-warn-unportable-instructions</code><dt><code>-Wup</code><dd>Issue a warning for undocumented Z80 instructions that do not work on R800.
|
||
|
|
<br><dt><code>-forbid-undocumented-instructions</code><dt><code>-Fud</code><dd>Treat all undocumented instructions as errors.
|
||
|
|
<br><dt><code>-forbid-unportable-instructions</code><dt><code>-Fup</code><dd>Treat undocumented Z80 instructions that do not work on R800 as errors.
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<!-- man end -->
|
||
|
|
<ul class="menu">
|
||
|
|
<li><a accesskey="1" href="Manual.html#Manual">Manual</a>: Structure of this Manual
|
||
|
|
<li><a accesskey="2" href="GNU-Assembler.html#GNU-Assembler">GNU Assembler</a>: The GNU Assembler
|
||
|
|
<li><a accesskey="3" href="Object-Formats.html#Object-Formats">Object Formats</a>: Object File Formats
|
||
|
|
<li><a accesskey="4" href="Command-Line.html#Command-Line">Command Line</a>: Command Line
|
||
|
|
<li><a accesskey="5" href="Input-Files.html#Input-Files">Input Files</a>: Input Files
|
||
|
|
<li><a accesskey="6" href="Object.html#Object">Object</a>: Output (Object) File
|
||
|
|
<li><a accesskey="7" href="Errors.html#Errors">Errors</a>: Error and Warning Messages
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
</body></html>
|
||
|
|
|