|
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122 |
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <!-- This file documents the GNU Assembler "as".
-
- Copyright (C) 1991-2020 Free Software Foundation, Inc.
-
- Permission is granted to copy, distribute and/or modify this document
- under the terms of the GNU Free Documentation License, Version 1.3
- or any later version published by the Free Software Foundation;
- with no Invariant Sections, with no Front-Cover Texts, and with no
- Back-Cover Texts. A copy of the license is included in the
- section entitled "GNU Free Documentation License".
- -->
- <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
- <title>Altmacro (Using as)</title>
-
- <meta name="description" content="Altmacro (Using as)">
- <meta name="keywords" content="Altmacro (Using as)">
- <meta name="resource-type" content="document">
- <meta name="distribution" content="global">
- <meta name="Generator" content="makeinfo">
- <link href="index.html#Top" rel="start" title="Top">
- <link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
- <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
- <link href="Pseudo-Ops.html#Pseudo-Ops" rel="up" title="Pseudo Ops">
- <link href="Ascii.html#Ascii" rel="next" title="Ascii">
- <link href="Align.html#Align" rel="prev" title="Align">
- <style type="text/css">
- <!--
- a.summary-letter {text-decoration: none}
- blockquote.indentedblock {margin-right: 0em}
- blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
- blockquote.smallquotation {font-size: smaller}
- div.display {margin-left: 3.2em}
- div.example {margin-left: 3.2em}
- div.lisp {margin-left: 3.2em}
- div.smalldisplay {margin-left: 3.2em}
- div.smallexample {margin-left: 3.2em}
- div.smalllisp {margin-left: 3.2em}
- kbd {font-style: oblique}
- pre.display {font-family: inherit}
- pre.format {font-family: inherit}
- pre.menu-comment {font-family: serif}
- pre.menu-preformatted {font-family: serif}
- pre.smalldisplay {font-family: inherit; font-size: smaller}
- pre.smallexample {font-size: smaller}
- pre.smallformat {font-family: inherit; font-size: smaller}
- pre.smalllisp {font-size: smaller}
- span.nolinebreak {white-space: nowrap}
- span.roman {font-family: initial; font-weight: normal}
- span.sansserif {font-family: sans-serif; font-weight: normal}
- ul.no-bullet {list-style: none}
- -->
- </style>
-
-
- </head>
-
- <body lang="en">
- <a name="Altmacro"></a>
- <div class="header">
- <p>
- Next: <a href="Ascii.html#Ascii" accesskey="n" rel="next">Ascii</a>, Previous: <a href="Align.html#Align" accesskey="p" rel="prev">Align</a>, Up: <a href="Pseudo-Ops.html#Pseudo-Ops" accesskey="u" rel="up">Pseudo Ops</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>
- </div>
- <hr>
- <a name="g_t_002ealtmacro"></a>
- <h3 class="section">7.4 <code>.altmacro</code></h3>
- <p>Enable alternate macro mode, enabling:
- </p>
- <dl compact="compact">
- <dt><code>LOCAL <var>name</var> [ , … ]</code>
- <a name="index-LOCAL-name-_005b-_002c-_2026-_005d"></a>
- </dt>
- <dd><p>One additional directive, <code>LOCAL</code>, is available. It is used to
- generate a string replacement for each of the <var>name</var> arguments, and
- replace any instances of <var>name</var> in each macro expansion. The
- replacement string is unique in the assembly, and different for each
- separate macro expansion. <code>LOCAL</code> allows you to write macros that
- define symbols, without fear of conflict between separate macro expansions.
- </p>
- </dd>
- <dt><code>String delimiters</code>
- <a name="index-String-delimiters"></a>
- </dt>
- <dd><p>You can write strings delimited in these other ways besides
- <code>"<var>string</var>"</code>:
- </p>
- <dl compact="compact">
- <dt><code>'<var>string</var>'</code></dt>
- <dd><p>You can delimit strings with single-quote characters.
- </p>
- </dd>
- <dt><code><<var>string</var>></code></dt>
- <dd><p>You can delimit strings with matching angle brackets.
- </p></dd>
- </dl>
-
- </dd>
- <dt><code>single-character string escape</code>
- <a name="index-single_002dcharacter-string-escape"></a>
- </dt>
- <dd><p>To include any single character literally in a string (even if the
- character would otherwise have some special meaning), you can prefix the
- character with ‘<samp>!</samp>’ (an exclamation mark). For example, you can
- write ‘<samp><4.3 !> 5.4!!></samp>’ to get the literal text ‘<samp>4.3 > 5.4!</samp>’.
- </p>
- </dd>
- <dt><code>Expression results as strings</code>
- <a name="index-Expression-results-as-strings"></a>
- </dt>
- <dd><p>You can write ‘<samp>%<var>expr</var></samp>’ to evaluate the expression <var>expr</var>
- and use the result as a string.
- </p></dd>
- </dl>
-
-
-
-
- </body>
- </html>
|