| <!DOCTYPE html> |
| <head> |
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| Copyright (C) 2007 Apple Inc. All rights reserved. |
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| |
| <title>SunSpider bitops-nsieve-bits</title> |
| |
| </head> |
| |
| <body> |
| <h3>bitops-nsieve-bits</h3> |
| <div id="console"> |
| </div> |
| |
| <script> |
| |
| var _sunSpiderStartDate = new Date(); |
| |
| // The Great Computer Language Shootout |
| // http://shootout.alioth.debian.org |
| // |
| // Contributed by Ian Osgood |
| |
| function pad(n,width) { |
| var s = n.toString(); |
| while (s.length < width) s = ' ' + s; |
| return s; |
| } |
| |
| function primes(isPrime, n) { |
| var i, count = 0, m = 10000<<n, size = m+31>>5; |
| |
| for (i=0; i<size; i++) isPrime[i] = 0xffffffff; |
| |
| for (i=2; i<m; i++) |
| if (isPrime[i>>5] & 1<<(i&31)) { |
| for (var j=i+i; j<m; j+=i) |
| isPrime[j>>5] &= ~(1<<(j&31)); |
| count++; |
| } |
| } |
| |
| function sieve() { |
| for (var i = 4; i <= 4; i++) { |
| var isPrime = new Array((10000<<i)+31>>5); |
| primes(isPrime, i); |
| } |
| } |
| |
| sieve(); |
| |
| |
| var _sunSpiderInterval = new Date() - _sunSpiderStartDate; |
| |
| document.getElementById("console").innerHTML = _sunSpiderInterval; |
| </script> |
| |
| |
| </body> |
| </html> |
