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<title>Using as: Altmacro</title>

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<a name="Altmacro"></a>
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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> &nbsp; [<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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<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> [ , &hellip; ]</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>&quot;<var>string</var>&quot;</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>&lt;<var>string</var>&gt;</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 &lsquo;<samp>!</samp>&rsquo; (an exclamation mark).  For example, you can
write &lsquo;<samp>&lt;4.3 !&gt; 5.4!!&gt;</samp>&rsquo; to get the literal text &lsquo;<samp>4.3 &gt; 5.4!</samp>&rsquo;.
</p>
</dd>
<dt><code>Expression results as strings</code>
<a name="index-Expression-results-as-strings"></a>
</dt>
<dd><p>You can write &lsquo;<samp>%<var>expr</var></samp>&rsquo; to evaluate the expression <var>expr</var>
and use the result as a string.
</p></dd>
</dl>


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