Cheat Engine

[yuvesch]

Hello every1,
1st of all, i already serched and could'nt find answers to my questions,
so pls, be gentel with me

here is my questions:
1) i've seen this "thing" and i dont know how to put the code inside the UCE, i mean, they wrote:

[me]

That looks like a code cave asm for a game,
a code cave is a free piece of memory space (usually buffer space which just means free space between code or data in a program ),
this space can be used to put your own cheat code in like is written above in your post,

the

[yuvesch]

1st of all, ty.
now, i know it's a code, that's the code of the dupx vac.
do u know hoe to run this code?

i tried by:
view memoriy --> tools --> auto assmbli (or whatever u wirte it)
and i paste the code and it says:

"the code can be injected. are u sure?"
and i have "yes" "no" buttons.

when i click on "yes" it says:
"not all instructions could be injected"
"ok" buttom.

and nothing happen.

and pls tell me how to run the other code to:
"Change EIP at address : 5EE7D5 to point to : 4001C5
Add in your list : 4001ED (on Double) and change its value to (default) -555"

this 1.

TY SO MUCH!

[me]

In the AUTO ASSEMBLE window did you use a template??

at the top of the AUTO ASSEMBLE window you got FILE TEMPLATE menu's

if you use the CODE INJECTION template you can enter the start address of your

code cave in the pop up box, this will put your auto assembled code in the right

place,
you need to write your jump into the games address to jump to your code cave

still..for example 5EE7D5:
jmp 4001C5


in the auto assemble script,

there will probably need to be nop's after that jump to balance out the code, so

at 5EE7D5 in the disassembler window right click 5EE7D5 and choose CREATE JUMP

AND INITIALIZE CODE CAVE, then in the pop up box enter your code cave address

4001C5... see what code is written by that in your code cave and what the jump

and nops look like at 5EE7D5, copy and past those into notepad for later,

you see when you create a code cave and make a jump somtimes a few nops have to

be added at the jump point to balance out the code, (like you jump may be made of

an odd number of bytes so nops have to be added to make it an even number of

bytes)
then the code that is nopped out has to be recreated in the code cave to stop the

game crashing,

as for Add in your list : 4001ED (on Double) and change its value to (default)

-555

notice he says list... I take he means the address list,
so in the main cheat engine window click on the add address manually button ..

enter 4001ED in the pop up box... this will add that address to the address

list..
then double click on the 4 bytes part of the address under "type" and in the pop

up box use the drop down menu and choose the double option,hit the ok button

,then just change the value of that address to -555,,

[yuvesch]

OMG! U'R THE MAN!!
I LOVE YOU
TY SO MUCHHHHHH!!!

but can u please explain those things too:

[me]

Hmm well I dont play the game so I was just telling you about the code cave bussiness and how to get that -555 address up,

anyway about that fmul qword ptr [00400330],

well that is another floating point quadword, and that is a static address,

so if you want you can add that address to the list the same way as you did with the 4001ED make it a double the same way and see what happens to it or change or freeze it to whatever you need to, if you need to that is

just tinker around and look in the autoassemble and maplestory tuts,
add addresses that you see into the address list , set some hotkeys for any of the co-ordinate addresses and mess about with the game,

oh and nop means NO-OPERATION in assembly language, so when you nop out some code the program just passes over the nop without doing anything till it get to the instruction after that nop,
for example if you go and replace DEC EAX with nop it will not decrease EAX anymore and if EAX is holding ammo or lives or whatever you want to keep you got infinite things,,

[yuvesch]

man, evert time i treid to do the "assimble" and clicks yes, it's restart my PC.
the same thing when i tried to do what u said about that code:

[me]

I just meant you can add fmul qword ptr [00400330] to the address list as a double to see what it does,

-----ahh I just found the page you got this from http://forum.cheatengine.org/viewtopic.php?t=13116