code: def do_dw(self, arg):
          
          self.print_memory_display(arg, HexDump.hexblock_word)
          self.last_display_command = self.do_dw
docs: [~thread] dw <register> - show memory contents as words
          [~thread] dw <register-register> - show memory contents as words
          [~thread] dw <register> <size> - show memory contents as words
          [~process] dw <address> - show memory contents as words
          [~process] dw <address-address> - show memory contents as words
          [~process] dw <address> <size> - show memory contents as words