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58 lines
2.6 KiB
HTML
58 lines
2.6 KiB
HTML
15 years ago
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<html lang="en">
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<head>
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<title>Dot - 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="up" href="Symbols.html#Symbols" title="Symbols">
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<link rel="prev" href="Symbol-Names.html#Symbol-Names" title="Symbol Names">
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<link rel="next" href="Symbol-Attributes.html#Symbol-Attributes" title="Symbol Attributes">
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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.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { 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="Dot"></a>Next: <a rel="next" accesskey="n" href="Symbol-Attributes.html#Symbol-Attributes">Symbol Attributes</a>,
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Previous: <a rel="previous" accesskey="p" href="Symbol-Names.html#Symbol-Names">Symbol Names</a>,
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Up: <a rel="up" accesskey="u" href="Symbols.html#Symbols">Symbols</a>
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<hr><br>
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</div>
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<h3 class="section">5.4 The Special Dot Symbol</h3>
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<p><a name="index-dot-_0028symbol_0029-221"></a><a name="index-_0040code_007b_002e_007d-_0028symbol_0029-222"></a><a name="index-current-address-223"></a><a name="index-location-counter-224"></a>The special symbol <span class="samp">.</span> refers to the current address that
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<span class="command">as</span> is assembling into. Thus, the expression <span class="samp">melvin:
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.long .</span> defines <code>melvin</code> to contain its own address.
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Assigning a value to <code>.</code> is treated the same as a <code>.org</code>
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directive. Thus, the expression <span class="samp">.=.+4</span> is the same as saying
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<span class="samp">.space 4</span>.
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</body></html>
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