LongToByte in ASM

[Grob]

This could be included in packet.dll or your ASM program if you'd feel like it. LongToByte(dword, 0) would get you the first byte, and , 1 would get you the second byte etc.

Code:

LongToByte proc szValue:DWORD,nCount:DWORD
    lea eax,szValue ; Set eax to the address of szValue
    add eax,nCount ; We add nCount to eax (if nCount is 1 we will return the second byte of the dword)
    movzx eax,byte ptr [eax] ; We move a byte into the 32-bit register using movzx. eax will now hold the correct byte
    ret ; Return eax which holds the correct byte to the application calling this function
LongToByte endp

[Juapillo]

putting it on packet structure's post
thanks you

~juapillo~