public void Platter_RegisterB()
{
Platter p = new Platter(new byte[] { 0, 0, 0, 255 });
Assert.AreEqual((uint)7, p.RegisterB);
p = new Platter(new byte[] { 0, 0, 0, 40 });
Assert.AreEqual((uint)5, p.RegisterB);
var newP = p.SetRegisterB(6);
Assert.AreEqual((uint)6, newP.RegisterB);
}