code: function fe32(sBox, x, R) {
  
          var toReturn = sBox[2 * chooseB(x, R)] ^
                         sBox[2 * chooseB(x, R + 1) + 1] ^
                         sBox[0x200 + 2 * chooseB(x, R + 2)] ^
                         sBox[0x200 + 2 * chooseB(x, R + 3) + 1];
  
          return new Uint32Array([toReturn])[0];
        }
docs: /* eslint-enable no-shadow /* eslint-disable no-bitwise