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Title: Clearing BYTE buffer
Post by: brixton on December 25, 2005, 05:31:29 PM

How do I clear the contents of a BYTE buffer? Like with registers, I can just xor register, register

Apologies for such a simple question,

-brixton

Title: Re: Clearing BYTE buffer
Post by: G`HOST on December 25, 2005, 06:40:24 PM

invoke RtlZeroMemory........................
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/Kernel_r/hh/Kernel_r/k109_63d9f0fb-d698-4707-9018-de2fa851a94b.xml.asp
:U

Title: Re: Clearing BYTE buffer
Post by: brixton on December 25, 2005, 08:21:27 PM

Looks great, thanks, perfect, amazing, yeah!

Is there any other way of doing it though, except a small loop moving 0 to each BYTE PTR?

Actually I suppose I'm just being greedy now :lol

Title: Re: Clearing BYTE buffer
Post by: Mincho Georgiev on December 25, 2005, 09:12:09 PM

Yes ,there is a third way, you separating the whole array on dwords and using DWORD PTR ,it's mutch more faster than a BYTE PTR loop.

Title: Re: Clearing BYTE buffer
Post by: hutch-- on December 25, 2005, 09:15:15 PM

brixton,

Usual trick is unless you need to zero fill the entire string, just write a zero to the first location and its a zero length string that you can write to.

Title: Re: Clearing BYTE buffer
Post by: brixton on December 25, 2005, 10:05:23 PM

Thanks for all the replies, and yes hutch--, I did that and it suits my needs for this particular project. Thanks! :bg :U

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General Forums => The Campus => Topic started by: brixton on December 25, 2005, 05:31:29 PM