code: function shr_64(x, n)
  	{
  		var retVal = null;
  
  		if (32 >= n)
  		{
  			retVal = new Int_64(
  					x.highOrder >>> n,
  					x.lowOrder >>> n | ((x.highOrder << (32 - n)) & 0xFFFFFFFF)
  				);
  		}
  		else
  		{
  			retVal = new Int_64(
  					0,
  					x.highOrder >>> (n - 32)
  				);
  		}
  
  		return retVal;
  	}
docs: The 64-bit implementation of shift right
  
  @private
  @param {Int_64} x The 64-bit integer argument
  @param {number} n The number of bits to shift
  @return {Int_64} The x shifted by n bits