> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Wolfgang Denk
> Sent: Friday, July 24, 2009 11:41 AM
> To: IaMaPlAyEr
> Cc: [email protected]
> Subject: Re: [U-Boot] hi, I could not understand the
> memsize.c,somebody help me?
>
> Dear IaMaPlAyEr,
>
> In message
> <[email protected]>
> you wrote:
> >
> > I could not understand common/memsize.c, how it works?
>
> It writes markers at specific memory locations and then reads
> these back. The algorithm is chosen to be fast but still to
> be able to detect mirrored address ranges and other memory errors.
Suppose I configure MAX_MEM)SIZE as 1Gig and the actual memory on the
board is 512M, is this function supposed to return 512M?
>
> > maxsize / sizeof (long), what's meaning of it? why sizeof (long) is
> > dividend?
>
> Please read some boot about C programming, section pointer
> arithmetics.
>
> > just like stack, push every step mem addr to save:
> >
> > save[i++] = *addr;
> > and then?
>
> The test is intended to be a non-desctructive one.
>
> Best regards,
>
> Wolfgang Denk
>
> --
> DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email:
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