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+<!DOCTYPE html>
+<head>
+<!--
+ Copyright (C) 2007 Apple Inc. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<title>SunSpider bitops-3bit-bits-in-byte</title>
+
+</head>
+
+<body>
+<h3>bitops-3bit-bits-in-byte</h3>
+<div id="console">
+</div>
+
+<script>
+
+var _sunSpiderStartDate = new Date();
+
+// Copyright (c) 2004 by Arthur Langereis (arthur_ext at domain xfinitegames, tld com
+
+// 1 op = 6 ANDs, 3 SHRs, 3 SHLs, 4 assigns, 2 ADDs
+// O(1)
+function fast3bitlookup(b) {
+var c, bi3b = 0xE994; // 0b1110 1001 1001 0100; // 3 2 2 1 2 1 1 0
+c = 3 & (bi3b >> ((b << 1) & 14));
+c += 3 & (bi3b >> ((b >> 2) & 14));
+c += 3 & (bi3b >> ((b >> 5) & 6));
+return c;
+
+/*
+lir4,0xE994; 9 instructions, no memory access, minimal register dependence, 6 shifts, 2 adds, 1 inline assign
+rlwinmr5,r3,1,28,30
+rlwinmr6,r3,30,28,30
+rlwinmr7,r3,27,29,30
+rlwnmr8,r4,r5,30,31
+rlwnmr9,r4,r6,30,31
+rlwnmr10,r4,r7,30,31
+addr3,r8,r9
+addr3,r3,r10
+*/
+}
+
+
+function TimeFunc(func) {
+var x, y, t;
+for(var x=0; x<500; x++)
+for(var y=0; y<256; y++) func(y);
+}
+
+TimeFunc(fast3bitlookup);
+
+
+var _sunSpiderInterval = new Date() - _sunSpiderStartDate;
+
+document.getElementById("console").innerHTML = _sunSpiderInterval;
+</script>
+
+
+</body>
+</html>