Cheat Engine

Chaosis13 · Posted: Fri Jul 11, 2008 5:04 pm Post subject: [Help] Array Pointers

I am trying to make an array that looks like this:

a = addy
v = addy's value

[x][1][2]
[1][a][v]
[2][a][v]
[3][a][v]
[4][a][v]
[5][a][v]

So I tryed to compile it, no errors. I ran it, blah.exe has stoped working... I tryed making an array that was a pointer, and just putting pointers into it, same. Whenever I try to do something with an array and a pointer the program stops working.

I am using VC++ 2008, whats wrong?

Flyte · Posted: Fri Jul 11, 2008 5:43 pm Post subject:

Chaosis13 · Posted: Fri Jul 11, 2008 5:49 pm Post subject:

Well I know what I am doing, but it is using a pointer which is giving me errors.... I dont know whats going on. Could you show me how you would put the value of an address into an array?

Flyte · Posted: Fri Jul 11, 2008 6:12 pm Post subject:

Chaosis13 · Posted: Fri Jul 11, 2008 6:45 pm Post subject:

Crashed instantly.... I am going to keep trying different things... One idea I had was to use ASM and its mov function to put the address stored by a variable into another. How would I do this with the __asm function.

normally it would be like: mov var,[addy]

any ideas?

Symbol · Posted: Fri Jul 11, 2008 7:55 pm Post subject:

Did you used this exact same code:

Chaosis13 · Posted: Fri Jul 11, 2008 8:01 pm Post subject:

Yes, I did. But I have also been trying other things. I think by not using any pointers it would have no errors... So how could I do this in ASM (put the value a variable stores into another variable)

Symbol · Posted: Fri Jul 11, 2008 8:04 pm Post subject:

These addresses aren't even valid. (unless you allocated memory there)
Try changing the addresses to valid addresses?

Chaosis13 · Posted: Fri Jul 11, 2008 8:26 pm Post subject:

That could be it... I will check. (I am using addresses 0x00400000 - 0x0040000F).

Wait. I checked with CE the addys are from 40000-FFFFFFFF.... There is memory at 0x00400000.
But how would I put the value of an address stored in a variable into another variable in ASM? ty.

EDIT:
Problem fixed! I am going to show off my program now! Ty for both of your help, I have thanked you in my program.

samuri25404 · Posted: Sat Jul 12, 2008 7:28 am Post subject:

lol...

You probably shouldn't be screwing around down there at the base address; that's where the PE header is, and if you go far enough, you could truly fuck some stuff up (not permanently). In the PE header are where your imports are stored, as well as your exports and what not. If you rewrite some of it, then... well, who knows what would happen. Most likely an instant crash would result.

Chaosis13 · Posted: Sat Jul 12, 2008 8:26 am Post subject:

Ah... Thank you for inrming me, that could be bad. It is clear I am making a C++ cheat engine, just a very very very simple one. But how would I search for the memory region of a process? If I did 00000000-FFFFFFFF that would be 4 gigs.... Not the best way to do it.

samuri25404 · Posted: Sat Jul 12, 2008 8:51 am Post subject:

sphere90 · Posted: Sat Jul 12, 2008 8:51 am Post subject:

samuri25404 · Posted: Sat Jul 12, 2008 8:58 am Post subject:

Chaosis13 · Posted: Sat Jul 12, 2008 9:56 am Post subject:

I have been searching through CE source, but havent found out anything good yet... Maybe I could do it just like CE.

Also I dont care about the ram usage, aslong as it doesn't get too big... I have 4 gigs, and most modern computers have atleast 2. So using 100mb of ram woundnt be horrible...