Added another bitops test from SunSpider.

tests/MANIFEST.json

@@ -143,6 +143,14 @@
 	category: "SunSpider JavaScript Tests",
 	tags: ["looping", "bitops"]
 },
+"sunspider-bitops-bits-in-byte": {
+	file: "sunspider-bitops-bits-in-byte.js",
+	name: "Compute Bits in Byte (2)",
+	origin: ["SunSpider", "http://www2.webkit.org/perf/sunspider-0.9/sunspider.html"],
+	desc: "Compute the number of bits in a number using bitops.",
+	category: "SunSpider JavaScript Tests",
+	tags: ["looping", "bitops"]
+},
 "sunspider-bitops-nsieve-bits": {
 	file: "sunspider-bitops-nsieve-bits.js",
 	name: "Prime Number Computation (2)",

tests/sunspider-bitops-bits-in-byte.js

@@ -0,0 +1,31 @@
+// Copyright (c) 2004 by Arthur Langereis (arthur_ext at domain xfinitegames, tld com)
+
+
+// 1 op = 2 assigns, 16 compare/branches, 8 ANDs, (0-8) ADDs, 8 SHLs
+// O(n)
+function bitsinbyte(b) {
+var m = 1, c = 0;
+while(m<0x100) {
+if(b & m) c++;
+m <<= 1;
+}
+return c;
+}
+
+function TimeFunc(func) {
+var x, y, t;
+for(var x=0; x<100; x++)
+for(var y=0; y<256; y++) func(y);
+}
+
+startTest("sunspider-bitops-bits-in-byte");
+
+for ( var i = 0; i < 4; i++ ) {
+
+test("Bit in byte (2)", i, function(){
+	TimeFunc(bitsinbyte);
+});
+
+}
+
+endTest();