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Title: help convert time
Post by: ecube on March 25, 2010, 09:08:33 PM

thanks qword

Title: Re: help convert time
Post by: qWord on March 25, 2010, 09:46:06 PM

seems like an byte swap:

xTime db "0123" ;=> db 30h,31h,32h,33h
the algo does:
30h SHL 24 + 31h SHL 16 + 32h SHL 8 + 33h = 30313233h 
stored in mem: db 33h,32h,31h,30h

bswap is your friend:

Code Select

mov eax,DWORD ptr xTime
bswap eax
;eax = result

Title: Re: help convert time
Post by: qWord on March 25, 2010, 10:21:49 PM

how can an 4 byte numeric string exceed 9999 (or if hex decimal 0xffff) ?

EDIT: didn't see your example :red - this also works! even with: FF FF FF FF

Title: Re: help convert time
Post by: qWord on March 25, 2010, 10:54:52 PM

bswap is correct for converting an DWORD from Network byte order to Little-Endian.
Did you ever heard of differenc between signed and unsigned int :U

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General Forums => The Workshop => Topic started by: ecube on March 25, 2010, 09:08:33 PM