chrome/test/data/dromaeo/tests/sunspider-bitops-nsieve-bits.html

   1 <html>
   2 <head>
   3 <script src="../htmlrunner.js"></script>
   4 <script>
   5 // The Great Computer Language Shootout
   6 //  http://shootout.alioth.debian.org
   7 //
   8 //  Contributed by Ian Osgood
   9
  10 function pad(n,width) {
  11   var s = n.toString();
  12   while (s.length < width) s = ' ' + s;
  13   return s;
  14 }
  15
  16 function primes(isPrime, n) {
  17   var i, count = 0, m = 10000<<n, size = m+31>>5;
  18
  19   for (i=0; i<size; i++) isPrime[i] = 0xffffffff;
  20
  21   for (i=2; i<m; i++)
  22     if (isPrime[i>>5] & 1<<(i&31)) {
  23       for (var j=i+i; j<m; j+=i)
  24         isPrime[j>>5] &= ~(1<<(j&31));
  25       count++;
  26     }
  27 }
  28
  29 window.onload = function(){ startTest("sunspider-bitops-nsieve-bits", '35973a6b');
  30
  31 var i = 2;
  32
  33 test( "N-Sieve Bits", function(){
  34         var isPrime = new Array((10000<<i)+31>>5);
  35         primes(isPrime, i);
  36 });
  37
  38 endTest(); };
  39 </script>
  40 </head>
  41 <body></body>
  42 </html>