Make VBA functions like these:

Public Function BITXOR(x As Long, y As Long)
   BITXOR = x Xor y
End Function

Public Function BITAND(x As Long, y As Long)
   BITAND = x And y
End Function

Public Function BITOR(x As Long, y As Long)
   BITOR = x Or y
End Function

How does one do bitwise manipulations such as exclusive-or (XOR), AND, etc.?