Re: [U-Boot] hi, I could not understand the memsize.c, somebody help me?

Dear IaMaPlAyEr,

In message 2ae8403e0906242014k7e37b8f0tebaffaeeaea3f6bc@mail.gmail.com 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.

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