| // Copyright (c) 2004 by Arthur Langereis (arthur_ext at domain xfinitegames, tld com) |
| |
| |
| var result = 0; |
| |
| // 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; |
| var sum = 0; |
| for(var x=0; x<35000; x++) |
| for(var y=0; y<256; y++) sum += func(y); |
| return sum; |
| } |
| |
| result = TimeFunc(bitsinbyte); |
| |
| var expected = 35840000; |
| if (result != expected) |
| throw "ERROR: bad result: expected " + expected + " but got " + result; |
| |
