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84 lines
3.4 KiB
HTML
84 lines
3.4 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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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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-->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Z80-Case (Using as)</title>
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<meta name="description" content="Z80-Case (Using as)">
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<meta name="keywords" content="Z80-Case (Using as)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Z80-Syntax.html#Z80-Syntax" rel="up" title="Z80 Syntax">
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<link href="Z80-Floating-Point.html#Z80-Floating-Point" rel="next" title="Z80 Floating Point">
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<link href="Z80_002dRegs.html#Z80_002dRegs" rel="prev" title="Z80-Regs">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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blockquote.indentedblock {margin-right: 0em}
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blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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blockquote.smallquotation {font-size: smaller}
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div.display {margin-left: 3.2em}
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div.example {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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span.nolinebreak {white-space: nowrap}
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span.roman {font-family: initial; font-weight: normal}
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span.sansserif {font-family: sans-serif; font-weight: normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Z80_002dCase"></a>
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<div class="header">
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<p>
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Previous: <a href="Z80_002dRegs.html#Z80_002dRegs" accesskey="p" rel="prev">Z80-Regs</a>, Up: <a href="Z80-Syntax.html#Z80-Syntax" accesskey="u" rel="up">Z80 Syntax</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Case-Sensitivity"></a>
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<h4 class="subsubsection">9.55.2.3 Case Sensitivity</h4>
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<a name="index-Z80_002c-case-sensitivity"></a>
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<a name="index-case-sensitivity_002c-Z80"></a>
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<p>Upper and lower case are equivalent in register names, opcodes,
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condition codes and assembler directives.
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The case of letters is significant in labels and symbol names. The case
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is also important to distinguish the suffix ‘<samp>b</samp>’ for a backward reference
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to a local label from the suffix ‘<samp>B</samp>’ for a number in binary notation.
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</p>
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</body>
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</html>
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