def _ceil(self, address):
        """
        Returns the smallest page boundary value not less than the address.
        :rtype: int
        :param address: the address to calculate its ceil.
        :return: the ceil of C{address}.
        """
        return (((address - 1) + self.page_size) & ~self.page_mask) & self.memory_mask
def _ceil(self, address):
        """
        Returns the smallest page boundary value not less than the address.
        :rtype: int
        :param address: the address to calculate its ceil.
        :return: the ceil of C{address}.
        """
        return (((address - 1) + self.page_size) & ~self.page_mask) & self.memory_mask
def _ceil ( self , address ) : return ( ( ( address - 1 ) + self . page_size ) & ~ self . page_mask ) & self . memory_mask
Returns the smallest page boundary value not less than the address.
        :rtype: int
        :param address: the address to calculate its ceil.
        :return: the ceil of C{address}.
Returns the smallest page boundary value not less than the address . : rtype : int : param address : the address to calculate its ceil . : return : the ceil of C { address } .