PS2DIS experts?

Discuss the development of new homebrew software, tools and libraries.

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PosX100
Posts: 98
Joined: Wed Aug 15, 2007 1:02 am

PS2DIS experts?

Post by PosX100 »

Are there any ps2dis experts here? we need urgent help on something!

Here we go!

Im trying with a friend, to edit the memory of our test psp application , so we can get a better understanding of how memory works.

Here's what we have , and our progress:

we have a simple eboot , that does this:
int somevariable=0;

while (inloop) {
CLEAR;
//track changes
printf("PRESS X/O TO INCREASE/DECREASE THE VARIABLE ");
switch(somevariable)
{
case 0: THE_MESSAGE="DEFAULT!";break;
case 650: THE_MESSAGE="Hey , why you edited my data?";break;
case 445:THE_MESSAGE="STOP IT!";break;
}
}
Now , with cheat master we're able to locate & edit the address.
All fine here.

But guess what happens if we edit the code a little:
int somevariable=0;
to
int *somevariable= new int;
What actually happens , is , that the address is always different on each run.
We heard that we have to use PS2dis(so we can find the secret pointer) , and we tried to learn...but we need a little help.
We searched for the actual variable name (which is MANA_POINTS) , but the address is fake.

Can someone expert/experienced help us?

thanks.
jimparis
Posts: 1145
Joined: Fri Jun 10, 2005 4:21 am
Location: Boston

Post by jimparis »

New allocates memory at runtime. There's no reason the address would be the same each time.
PosX100
Posts: 98
Joined: Wed Aug 15, 2007 1:02 am

Post by PosX100 »

jimparis wrote:New allocates memory at runtime. There's no reason the address would be the same each time.
Yes , we know it , but let me explain why were doing it that way.

Our target , is to create CHEATS for our favorite games that we own& share them to the public.
Some games allocate memory DYNAMICALLY (people call them "dma games"), and you have to search all the time for addresses.

There is a reason that we call our demo-app "D.M.A EMULATOR"...
So , can someone help us with some tips on how to locate the wanted address?
kururin
Posts: 36
Joined: Wed Jul 05, 2006 7:19 am

Post by kururin »

"We don't hack official games here"

Something tells me that's how ooPo will close the message :p
Stealth Kill
Posts: 18
Joined: Sun Aug 21, 2005 12:51 am

Post by Stealth Kill »

I can hack every game with Ps2dis.

here a video

http://www.myvideo.de/watch/2157490
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jbit
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Posts: 293
Joined: Sat May 28, 2005 3:11 am
Location: København, Danmark
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Post by jbit »

We don't hack official games here
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