Cheat Engine

Dark Byte · Posted: Fri Dec 02, 2005 9:10 am Post subject:

no, if you want to write the decimal value of 99, use the hexadecimal value of 63

and it may crash if the instruction being changed was being executed at that moment

levis · Newbie cheater Reputation: 0 Joined: 30 Nov 2005 Posts: 24

with reference to my code snipet...
the program crashes becos execution during the change of instruction, as u say..

could it be becos i changed the eax to 99 at 004001d5, and then during execution, somewhere along the line when i "off" the script, when it goes back to 004001C5, the eax is at its wrong value, causing some error exception... ?

come to think of it, when i modify registers eax to 99 (using the "change register at this address" option), to revert back to original, i just have to uncheck the eax checkbox... however when i directly change opcode, how is it possible to revert the value of eax back to its original (using opcodes?)

Dark Byte · Posted: Fri Dec 02, 2005 11:01 am Post subject:

one way it can go wrong is when the "mov [ecx],eax" instruction has been written back and it gets executed, but the jmp hasn't been written back yet.

it will then start running random data after it and eventually crash

levis · Newbie cheater Reputation: 0 Joined: 30 Nov 2005 Posts: 24

any suggestion on how to counter this? or a better way to improve those codes..

Dark Byte · Posted: Fri Dec 02, 2005 11:16 am Post subject:

The problem only happens when that code is being executed. so make it that you are not executing that code when you press the hotkey for that option

Usually I would pause the game, then replace and resume, but I doubt thats a viable option in your case.

try in the enable part:

levis · Newbie cheater Reputation: 0 Joined: 30 Nov 2005 Posts: 24

hey darkbyte, u've been a great help..
now i implemented the method and it works fine.. at least it didnt crash out for the past 20mins or so.. and hopefully it wont ever.. lol

u're great.. thank you~!

levis · Newbie cheater Reputation: 0 Joined: 30 Nov 2005 Posts: 24

ic.. the usage of cmp.. i nv thought of that though...
kk i'll try both method and see whichever works out better..

3 thumbs up ~!

Dark Byte · Posted: Fri Dec 02, 2005 12:09 pm Post subject:

your post looks weird here, but thats because I deleted my old post because one slight bug in the fullaccess line (I forgot the ,4 and ce doesn't give a error notification when you forget it, and I didn't even need it...)

anyhow, this was the other code I posted (fixed)