71 lines
3.6 KiB
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71 lines
3.6 KiB
HTML
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<title>S12Z Options - Using as</title>
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This file documents the GNU Assembler "as".
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<a name="S12Z-Options"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="S12Z-Syntax.html#S12Z-Syntax">S12Z Syntax</a>,
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Up: <a rel="up" accesskey="u" href="S12Z_002dDependent.html#S12Z_002dDependent">S12Z-Dependent</a>
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<h4 class="subsection">9.24.1 S12Z Options</h4>
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<p><a name="index-options_002c-S12Z-1517"></a><a name="index-S12Z-options-1518"></a>
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The S12Z version of <code>as</code> recognizes the following options:
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<dl>
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<dt>‘<samp><span class="samp">-mreg-prefix=</span><var>prefix</var></samp>’<dd><a name="index-g_t_0040samp_007b_002dmreg_002dprefix_003d_0040var_007bprefix_007d_007d-option_002c-reg_002dprefix-1519"></a>You can use the ‘<samp><span class="samp">-mreg-prefix=</span><var>pfx</var></samp>’ option to indicate
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that the assembler should expect all register names to be prefixed with the
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string <var>pfx</var>.
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<p>For an explanation of what this means and why it might be needed,
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see <a href="S12Z-Register-Notation.html#S12Z-Register-Notation">S12Z Register Notation</a>.
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<br><dt>‘<samp><span class="samp">-mdollar-hex</span></samp>’<dd><a name="index-g_t_0040samp_007b_002dmdollar_002dhex_007d-option_002c-dollar_002dhex-1520"></a><a name="index-hexadecimal-prefix_002c-S12Z-1521"></a>The ‘<samp><span class="samp">-mdollar-hex</span></samp>’ option affects the way that literal hexadecimal constants
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are represented. When this option is specified, the assembler will consider
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the ‘<samp><span class="samp">$</span></samp>’ character as the start of a hexadecimal integer constant. Without
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this option, the standard value of ‘<samp><span class="samp">0x</span></samp>’ is expected.
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<p>If you use this option, then you cannot have symbol names starting with ‘<samp><span class="samp">$</span></samp>’.
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‘<samp><span class="samp">-mdollar-hex</span></samp>’ is implied if the ‘<samp><span class="samp">--traditional-format</span></samp>’
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(see <a href="traditional_002dformat.html#traditional_002dformat">traditional-format</a>) is used.
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</dl>
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</body></html>
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