67 lines
3 KiB
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67 lines
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HTML
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<title>Line - Using as</title>
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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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<a name="Line"></a>Next: <a rel="next" accesskey="n" href="Linkonce.html#Linkonce">Linkonce</a>,
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Previous: <a rel="previous" accesskey="p" href="Lflags.html#Lflags">Lflags</a>,
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Up: <a rel="up" accesskey="u" href="Pseudo-Ops.html#Pseudo-Ops">Pseudo Ops</a>
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</div>
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<h3 class="section">7.70 <code>.line </code><var>line-number</var></h3>
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<p><a name="index-_0040code_007bline_007d-directive-376"></a><a name="index-logical-line-number-377"></a>Change the logical line number. <var>line-number</var> must be an absolute
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expression. The next line has that logical line number. Therefore any other
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statements on the current line (after a statement separator character) are
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reported as on logical line number <var>line-number</var> − 1. One day
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<span class="command">as</span> will no longer support this directive: it is recognized only
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for compatibility with existing assembler programs.
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<p>Even though this is a directive associated with the <code>a.out</code> or
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<code>b.out</code> object-code formats, <span class="command">as</span> still recognizes it
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when producing COFF output, and treats <span class="samp">.line</span> as though it
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were the COFF <span class="samp">.ln</span> <em>if</em> it is found outside a
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<code>.def</code>/<code>.endef</code> pair.
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<p>Inside a <code>.def</code>, <span class="samp">.line</span> is, instead, one of the directives
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used by compilers to generate auxiliary symbol information for
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debugging.
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</body></html>
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