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<title>Using as: Z80-Regs</title>

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Next: <a href="Z80_002dCase.html#Z80_002dCase" accesskey="n" rel="next">Z80-Case</a>, Previous: <a href="Z80_002dChars.html#Z80_002dChars" accesskey="p" rel="prev">Z80-Chars</a>, Up: <a href="Z80-Syntax.html#Z80-Syntax" accesskey="u" rel="up">Z80 Syntax</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="Register-Names-17"></a>
<h4 class="subsubsection">9.46.2.2 Register Names</h4>
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<a name="index-register-names_002c-Z80"></a>

<p>The registers are referred to with the letters assigned to them by
Zilog. In addition <code>as</code> recognizes &lsquo;<samp>ixl</samp>&rsquo; and
&lsquo;<samp>ixh</samp>&rsquo; as the least and most significant octet in &lsquo;<samp>ix</samp>&rsquo;, and
similarly &lsquo;<samp>iyl</samp>&rsquo; and  &lsquo;<samp>iyh</samp>&rsquo; as parts of &lsquo;<samp>iy</samp>&rsquo;.
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