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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>shift left (or right) logical</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../S.html" title="S"/><link rel="previous" href="shell-out.html" title="shell out"/><link rel="next" href="shim.html" title="shim"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">shift left (or right) logical</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="shell-out.html">Prev</a> </td><th width="60%" align="center">S</th><td width="20%" align="right"> <a accesskey="n" href="shim.html">Next</a></td></tr></table><hr/></div><dt><a id="shift-left-or-right-logical"/><dt xmlns="" id="shift-left-or-right-logical"><b>shift left (or right) logical</b></dt></dt><dd><p> [from any of various machines' instruction sets] </p></dd><dd><p> 1. <span class="grammar">vi.</span> To move oneself to the
left (right). To move out of the way. </p></dd><dd><p> 2. imper. &#8220;<span class="quote">Get out of my seat! You can shift to that empty
one to the left (right).</span>&#8221; Often used without the <span class="firstterm">logical</span>, or as <span class="firstterm">left
shift</span> instead of <span class="firstterm">shift
left</span>. Sometimes heard as LSH <span class="pronunciation">/lish/</span>, from the
<a href="../P/PDP-10.html"><i class="glossterm">PDP-10</i></a> instruction set. See
<a href="../P/Programmers-Cheer.html"><i class="glossterm">Programmer's Cheer</i></a>.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="shell-out.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../S.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="shim.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">shell out </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> shim</td></tr></table></div></body></html>