----- Original Message -----
 Hello Dave,
 
 The new patch is attached.
 
 I  simplified the display_with_pre_and_post() function by calling the
 currently-existing display_memory() function, and made the output
 readable according to your advice.
 
 Thanks
 Zhang Yanfei
  
It's looking pretty good -- a couple minor points/questions:
(1) in display_memory(), why re-initialize the error_handle each
    time through the loop, instead of doing it just once?
(2) in display_memory(), shouldn't the "lost" variable be reset 
    to 0 after a line of output is printed?
Dave