Cracking Projects For Newbies

Re: Re: Task# 3; CORRECTIONS
Monday, 08-Feb-99 12:31:06
    209.209.30.231 writes:

    I have noted several mistakes I made in descriptions in my notes such as the following:

    <<:0040CCD6 8A01 mov al, byte ptr [ecx] (Compare first Char# of ecx fake # with value in al)

    This should read:

    :0040CCD6 8A01 mov al, byte ptr [ecx] (Move<<- first Char# of ecx fake # & put value in al)

    ..........................................................
    This one is incorrect also:

    <<:0040CCE3 3A4201 cmp al, byte ptr [edx+01](add next char# of edx string into al (?)

    This should read:

    :0040CCE3 3A4201 cmp al, byte ptr [edx+01](add next char# of edx string & compare with value of ecx in al


    ............................................................

    Here is another one incorrect:

    < :0040CCF0 75E4 jne 0040CCD6
    will see that the last character has been checked and will pass us thru to:
    :0040CCF2 33C0 xor eax, eax <<--if Okay eax=0; if NOT; eax=ffffffff; or 01

    Should read:

    At the end of the loop the conditional jump at:0040CCDE...

    :0040CCDC 0AC0 or al, al <:0040CCDE 7412 je 0040CCF2 (not sure what its suppossed to be equal to)
    ...will see that the last character has been checked in al and will pass us thru to:
    :0040CCF2 33C0 xor eax, eax <<--if Okay eax=0; if NOT; eax=ffffffff; or 01


    So it is here and not at :0040CCF0 that the jump to xor eax will occur.


    ............................................................

    There are several more mistakes in it and I am sorry if I have misinformed the new newby I have flagged; "Hey, come Read this One"; but in my OWN Case I am actually pleased that each time I go over it
    I can see things here and there that are not consistant; I am pleased because this means that
    I am beginning to follow and see into the asm mystery a little bit more with each project.
    .............................................................

    Regards
    Respects
    Cheers
    Jeff

    Jeff


Message thread:

Jeff: jas's Thread for NEW newbys (05-Feb-99 21:20:24)

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