[INFO] Jumps

[phoenixraider]

I made a reply to a thread, posted somewhat this ..
Thought I'd post it here for all you Assembly & OllyDBG users.
- enjoy


Z Flag, C Flag, S Flag ..
Witch allows you to do/un-do jumps ..
Depending on witch jump .. You should edit witch you need for the exact thing ..

Examples (Most Common) ..

JNE .....
That will "operate" only if the Z Flag is not equal to 0 ..

JE
That will "operate" only if the Z Flag is equal to 0 ..

JA
That will "operate" only if the C Flag & Z Flag is ABOVE 0 ..

JB
That will "operate" only if the C Flag is below 1 ..

JG
That will "operate" only if the Z Flag & S Flag is greater then 0 ..

JGE
That will "operate" only if the S Flag is greater or equal to 0 ..

In some other cases ...

JMP ....

That, always jumps ..
You will have to edit the whole line of JMP ...
To what ever fits ur needs.

P.S: I'm no expert, but I hope that helped

[rwkeith]

Excellent Post. A couple of these helped me.