code: def memory_write64(self, addr, data, zone=None):
          
          words = []
          bitmask = 0xFFFFFFFF
          for long_word in data:
              words.append(long_word & bitmask)          # Last 32-bits
              words.append((long_word >> 32) & bitmask)  # First 32-bits
          return self.memory_write32(addr, words, zone=zone)
docs: Writes long words to memory of a target system.
  
          Note:
            This is little-endian.
  
          Args:
            self (JLink): the ``JLink`` instance
            addr (int): start address to write to
            data (list): list of long words to write
            zone (str): optional memory zone to access
  
          Returns:
            Number of long words written to target.
  
          Raises:
            JLinkException: on memory access error.