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67 lines
3.3 KiB
HTML
67 lines
3.3 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>MMIX-Chars - 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 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="MMIX_002dSyntax.html#MMIX_002dSyntax" title="MMIX-Syntax">
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<link rel="next" href="MMIX_002dSymbols.html#MMIX_002dSymbols" title="MMIX-Symbols">
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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) 1991-2015 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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-->
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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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span.sansserif { font-family:sans-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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<a name="MMIX-Chars"></a>
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<a name="MMIX_002dChars"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="MMIX_002dSymbols.html#MMIX_002dSymbols">MMIX-Symbols</a>,
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Up: <a rel="up" accesskey="u" href="MMIX_002dSyntax.html#MMIX_002dSyntax">MMIX-Syntax</a>
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<hr>
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</div>
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<h5 class="subsubsection">9.28.3.1 Special Characters</h5>
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<p><a name="index-line-comment-characters_002c-MMIX-1573"></a><a name="index-MMIX-line-comment-characters-1574"></a>
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The characters ‘<samp><span class="samp">*</span></samp>’ and ‘<samp><span class="samp">#</span></samp>’ are line comment characters; each
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start a comment at the beginning of a line, but only at the beginning of a
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line. A ‘<samp><span class="samp">#</span></samp>’ prefixes a hexadecimal number if found elsewhere on a
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line. If a ‘<samp><span class="samp">#</span></samp>’ appears at the start of a line the whole line is
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treated as a comment, but the line can also act as a logical line
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number directive (see <a href="Comments.html#Comments">Comments</a>) or a preprocessor control command
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(see <a href="Preprocessing.html#Preprocessing">Preprocessing</a>).
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<p>Two other characters, ‘<samp><span class="samp">%</span></samp>’ and ‘<samp><span class="samp">!</span></samp>’, each start a comment anywhere
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on the line. Thus you can't use the ‘<samp><span class="samp">modulus</span></samp>’ and ‘<samp><span class="samp">not</span></samp>’
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operators in expressions normally associated with these two characters.
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<p>A ‘<samp><span class="samp">;</span></samp>’ is a line separator, treated as a new-line, so separate
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instructions can be specified on a single line.
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</body></html>
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