Hi ya,
> I could not understand common/memsize.c, how it works?
Like a charm ;)
> maxsize / sizeof (long), what's meaning of it? why sizeof (long) is
> dividend?
As the comment in line 50 states, "cnt" is used in pointer arithmetic,
so addr is increased in sizeof(long) bytes. maxsize however is
considered to be in bytes only. Makes sense?
> just like stack, push every step mem addr to save:
>
> save[i++] = *addr;
> and then?
Cannot parse the question.
The algorithm should be pretty clear however (take a paper and pencil
and work out the values of addr as it proceeds) - we save the original
content of the adressed cells and write our own pattern there (~cnt).
Then we walk these cells upward and see where the previous write did not
work like it was supposed to - voila.
Cheers
Detlev
--
The continental people think life is a game. The English think
cricket is a game.
-- George Mikes
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: d...@denx.de
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
