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1 <!DOCTYPE html> |
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2 <head> |
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3 <!-- |
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4 Copyright (C) 2007 Apple Inc. All rights reserved. |
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5 |
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6 Redistribution and use in source and binary forms, with or without |
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7 modification, are permitted provided that the following conditions |
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8 are met: |
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9 1. Redistributions of source code must retain the above copyright |
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10 notice, this list of conditions and the following disclaimer. |
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11 2. Redistributions in binary form must reproduce the above copyright |
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12 notice, this list of conditions and the following disclaimer in the |
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13 documentation and/or other materials provided with the distribution. |
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14 |
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15 THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
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16 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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18 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
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19 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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23 OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 --> |
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27 |
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28 <title>SunSpider bitops-nsieve-bits</title> |
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29 |
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30 </head> |
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31 |
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32 <body> |
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33 <h3>bitops-nsieve-bits</h3> |
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34 <div id="console"> |
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35 </div> |
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36 |
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37 <script> |
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38 |
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39 var _sunSpiderStartDate = new Date(); |
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40 |
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41 // The Great Computer Language Shootout |
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42 // http://shootout.alioth.debian.org |
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43 // |
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44 // Contributed by Ian Osgood |
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45 |
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46 function pad(n,width) { |
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47 var s = n.toString(); |
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48 while (s.length < width) s = ' ' + s; |
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49 return s; |
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50 } |
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51 |
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52 function primes(isPrime, n) { |
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53 var i, count = 0, m = 10000<<n, size = m+31>>5; |
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54 |
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55 for (i=0; i<size; i++) isPrime[i] = 0xffffffff; |
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56 |
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57 for (i=2; i<m; i++) |
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58 if (isPrime[i>>5] & 1<<(i&31)) { |
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59 for (var j=i+i; j<m; j+=i) |
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60 isPrime[j>>5] &= ~(1<<(j&31)); |
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61 count++; |
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62 } |
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63 } |
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64 |
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65 function sieve() { |
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66 for (var i = 4; i <= 4; i++) { |
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67 var isPrime = new Array((10000<<i)+31>>5); |
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68 primes(isPrime, i); |
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69 } |
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70 } |
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71 |
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72 sieve(); |
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73 |
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74 |
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75 var _sunSpiderInterval = new Date() - _sunSpiderStartDate; |
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76 |
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77 document.getElementById("console").innerHTML = _sunSpiderInterval; |
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78 </script> |
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79 |
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80 |
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81 </body> |
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82 </html> |