| <!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) 1991-2013 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 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>Using as: Z8000-Regs</title> |
| |
| <meta name="description" content="Using as: Z8000-Regs"> |
| <meta name="keywords" content="Using as: Z8000-Regs"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <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="Z8000-Syntax.html#Z8000-Syntax" rel="up" title="Z8000 Syntax"> |
| <link href="Z8000_002dAddressing.html#Z8000_002dAddressing" rel="next" title="Z8000-Addressing"> |
| <link href="Z8000_002dChars.html#Z8000_002dChars" rel="prev" title="Z8000-Chars"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| 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.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="Z8000_002dRegs"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="Z8000_002dAddressing.html#Z8000_002dAddressing" accesskey="n" rel="next">Z8000-Addressing</a>, Previous: <a href="Z8000_002dChars.html#Z8000_002dChars" accesskey="p" rel="prev">Z8000-Chars</a>, Up: <a href="Z8000-Syntax.html#Z8000-Syntax" accesskey="u" rel="up">Z8000 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> |
| </div> |
| <hr> |
| <a name="Register-Names-18"></a> |
| <h4 class="subsubsection">9.47.2.2 Register Names</h4> |
| |
| <a name="index-Z8000-registers"></a> |
| <a name="index-registers_002c-Z8000"></a> |
| <p>The Z8000 has sixteen 16 bit registers, numbered 0 to 15. You can refer |
| to different sized groups of registers by register number, with the |
| prefix ‘<samp>r</samp>’ for 16 bit registers, ‘<samp>rr</samp>’ for 32 bit registers and |
| ‘<samp>rq</samp>’ for 64 bit registers. You can also refer to the contents of |
| the first eight (of the sixteen 16 bit registers) by bytes. They are |
| named ‘<samp>rl<var>n</var></samp>’ and ‘<samp>rh<var>n</var></samp>’. |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample"><em>byte registers</em> |
| </pre><pre class="smallexample">rl0 rh0 rl1 rh1 rl2 rh2 rl3 rh3 |
| rl4 rh4 rl5 rh5 rl6 rh6 rl7 rh7 |
| |
| </pre><pre class="smallexample"><em>word registers</em> |
| </pre><pre class="smallexample">r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 r13 r14 r15 |
| |
| </pre><pre class="smallexample"><em>long word registers</em> |
| </pre><pre class="smallexample">rr0 rr2 rr4 rr6 rr8 rr10 rr12 rr14 |
| |
| </pre><pre class="smallexample"><em>quad word registers</em> |
| </pre><pre class="smallexample">rq0 rq4 rq8 rq12 |
| </pre></div> |
| |
| |
| |
| |
| </body> |
| </html> |
