title: C# fast crc32 calculation :
body: <p>I've profiled my application with Ants and found out that > 10% is in CRC32 calculations.
  (The CRC32-calculation is done in plain C#)</p>
  
  <p>I did some googling and learned about the following intrinsics in Visual Studio 2008 :</p>
  
  <p>_mm_crc32_u8</p>
  
  <p>_mm_crc32_u16</p>
  
  <p>_mm_crc32_u32</p>
  
  <p>_mm_crc32_u64</p>
  
  <p>( <a href="http://msdn.microsoft.com/en-us/library/bb514036.aspx" rel="nofollow noreferrer">http://msdn.microsoft.com/en-us/library/bb514036.aspx</a> )</p>
  
  <p>Can anyone tell me / show me how to use these to replace my homebrew CRC32 ?</p>