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7.1 KiB
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137 lines
7.1 KiB
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<html lang="en">
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<head>
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<title>ARC Options - Using as</title>
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<meta name="description" content="Using as">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="ARC_002dDependent.html#ARC_002dDependent" title="ARC-Dependent">
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<link rel="next" href="ARC-Syntax.html#ARC-Syntax" title="ARC 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) 1991-2019 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
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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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</head>
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<body>
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<div class="node">
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<a name="ARC-Options"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="ARC-Syntax.html#ARC-Syntax">ARC Syntax</a>,
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Up: <a rel="up" accesskey="u" href="ARC_002dDependent.html#ARC_002dDependent">ARC-Dependent</a>
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<hr>
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</div>
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<h4 class="subsection">9.3.1 Options</h4>
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<p><a name="index-ARC-options-617"></a><a name="index-options-for-ARC-618"></a>
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The following options control the type of CPU for which code is
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assembled, and generic constraints on the code generated:
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<dl>
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<dt><code>-mcpu=</code><var>cpu</var><dd><a name="index-g_t_0040code_007b_002dmcpu_003d_0040var_007bcpu_007d_007d-command_002dline-option_002c-ARC-619"></a>Set architecture type and register usage for <var>cpu</var>. There are
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also shortcut alias options available for backward compatibility and
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convenience. Supported values for <var>cpu</var> are
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<a name="index-g_t_0040code_007bmA6_007d-command_002dline-option_002c-ARC-620"></a>
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<a name="index-g_t_0040code_007bmarc600_007d-command_002dline-option_002c-ARC-621"></a>
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<dl><dt><code>arc600</code><dd>Assemble for ARC 600. Aliases: <code>-mA6</code>, <code>-mARC600</code>.
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<br><dt><code>arc600_norm</code><dd>Assemble for ARC 600 with norm instructions.
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<br><dt><code>arc600_mul64</code><dd>Assemble for ARC 600 with mul64 instructions.
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<br><dt><code>arc600_mul32x16</code><dd>Assemble for ARC 600 with mul32x16 instructions.
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<br><dt><code>arc601</code><dd><a name="index-g_t_0040code_007bmARC601_007d-command_002dline-option_002c-ARC-622"></a>Assemble for ARC 601. Alias: <code>-mARC601</code>.
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<br><dt><code>arc601_norm</code><dd>Assemble for ARC 601 with norm instructions.
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<br><dt><code>arc601_mul64</code><dd>Assemble for ARC 601 with mul64 instructions.
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<br><dt><code>arc601_mul32x16</code><dd>Assemble for ARC 601 with mul32x16 instructions.
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<br><dt><code>arc700</code><dd><a name="index-g_t_0040code_007bmA7_007d-command_002dline-option_002c-ARC-623"></a><a name="index-g_t_0040code_007bmARC700_007d-command_002dline-option_002c-ARC-624"></a>Assemble for ARC 700. Aliases: <code>-mA7</code>, <code>-mARC700</code>.
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<br><dt><code>arcem</code><dd><a name="index-g_t_0040code_007bmEM_007d-command_002dline-option_002c-ARC-625"></a>Assemble for ARC EM. Aliases: <code>-mEM</code>
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<br><dt><code>em</code><dd>Assemble for ARC EM, identical as arcem variant.
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<br><dt><code>em4</code><dd>Assemble for ARC EM with code-density instructions.
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<br><dt><code>em4_dmips</code><dd>Assemble for ARC EM with code-density instructions.
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<br><dt><code>em4_fpus</code><dd>Assemble for ARC EM with code-density instructions.
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<br><dt><code>em4_fpuda</code><dd>Assemble for ARC EM with code-density, and double-precision assist
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instructions.
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<br><dt><code>quarkse_em</code><dd>Assemble for QuarkSE-EM cpu.
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<br><dt><code>archs</code><dd><a name="index-g_t_0040code_007bmHS_007d-command_002dline-option_002c-ARC-626"></a>Assemble for ARC HS. Aliases: <code>-mHS</code>, <code>-mav2hs</code>.
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<br><dt><code>hs</code><dd>Assemble for ARC HS.
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<br><dt><code>hs34</code><dd>Assemble for ARC HS34.
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<br><dt><code>hs38</code><dd>Assemble for ARC HS38.
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<br><dt><code>hs38_linux</code><dd>Assemble for ARC HS38 with floating point support on.
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<br><dt><code>nps400</code><dd><a name="index-g_t_0040code_007bmnps400_007d-command_002dline-option_002c-ARC-627"></a>Assemble for ARC 700 with NPS-400 extended instructions.
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</dl>
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<p>Note: the <code>.cpu</code> directive (see <a href="ARC-Directives.html#ARC-Directives">ARC Directives</a>) can
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to be used to select a core variant from within assembly code.
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<p><a name="index-g_t_0040code_007b_002dEB_007d-command_002dline-option_002c-ARC-628"></a><br><dt><code>-EB</code><dd>This option specifies that the output generated by the assembler should
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be marked as being encoded for a big-endian processor.
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<p><a name="index-g_t_0040code_007b_002dEL_007d-command_002dline-option_002c-ARC-629"></a><br><dt><code>-EL</code><dd>This option specifies that the output generated by the assembler should
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be marked as being encoded for a little-endian processor - this is the
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default.
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<p><a name="index-g_t_0040code_007b_002dmcode_002ddensity_007d-command_002dline-option_002c-ARC-630"></a><br><dt><code>-mcode-density</code><dd>This option turns on Code Density instructions. Only valid for ARC EM
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processors.
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<p><a name="index-g_t_0040code_007b_002dmrelax_007d-command_002dline-option_002c-ARC-631"></a><br><dt><code>-mrelax</code><dd>Enable support for assembly-time relaxation. The assembler will
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replace a longer version of an instruction with a shorter one,
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whenever it is possible.
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<p><a name="index-g_t_0040code_007b_002dmnps400_007d-command_002dline-option_002c-ARC-632"></a><br><dt><code>-mnps400</code><dd>Enable support for NPS-400 extended instructions.
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<p><a name="index-g_t_0040code_007b_002dmspfp_007d-command_002dline-option_002c-ARC-633"></a><br><dt><code>-mspfp</code><dd>Enable support for single-precision floating point instructions.
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<p><a name="index-g_t_0040code_007b_002dmdpfp_007d-command_002dline-option_002c-ARC-634"></a><br><dt><code>-mdpfp</code><dd>Enable support for double-precision floating point instructions.
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<p><a name="index-g_t_0040code_007b_002dmfpuda_007d-command_002dline-option_002c-ARC-635"></a><br><dt><code>-mfpuda</code><dd>Enable support for double-precision assist floating point instructions.
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Only valid for ARC EM processors.
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</dl>
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</body></html>
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