def __add__(self, other):
        """Performs a wrapping addition of two equal-sized BinWords."""
        self._check_match(other)
        return BinWord(self._width, self._val + other._val, trunc=True)
def __add__ ( self , other ) : self . _check_match ( other ) return BinWord ( self . _width , self . _val + other . _val , trunc = True )
Performs a wrapping addition of two equal-sized BinWords.