anchor.diff:        expect(counter.w, floatEquals(21.0));
     });
   
  -  test('test Uint32x4', () {
  +  test('test Int32x4', () {
         if (Platform.supportsSimd) {
  -	final val = new Uint32x4(1, 2, 3, 4);
  +	final val = new Int32x4(1, 2, 3, 4);
   	expect(val.x, equals(1));
   	expect(val.y, equals(2));
   	expect(val.z, equals(3));
  
positive.code: 	expect(val2.x, floatEquals(2.0));
  	expect(val2.y, floatEquals(4.0));
  	expect(val2.z, floatEquals(6.0));
  	expect(val2.w, floatEquals(8.0));	
        }	
    });
  
    test('test Float32x4List', () {
  
negative.code: 	expect(val2.x, equals(0));
  	expect(val2.y, equals(0));
  	expect(val2.z, equals(0));
  	expect(val2.w, equals(0));
        }
    });
  }
  