Cheat Engine Forum Index Cheat Engine
The Official Site of Cheat Engine
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 


Conceptual questions

 
Post new topic   Reply to topic    Cheat Engine Forum Index -> General Gamehacking
View previous topic :: View next topic  
Author Message
kitesan
Expert Cheater
Reputation: 0

Joined: 01 May 2014
Posts: 124
PostPosted: Sat Dec 12, 2015 10:29 am    Post subject: Conceptual questions Reply with quote
why old games memory was "static" and there was no need of finding pointers?

when we talk about pointers what we mean actually? how you can represent them in C for example?

how do you recognize a game's function call in assembly?
Back to top
View user's profile Send private message
Gniarf
Grandmaster Cheater Supreme
Reputation: 43

Joined: 12 Mar 2012
Posts: 1285
PostPosted: Sun Dec 13, 2015 3:36 am    Post subject: Reply with quote
kitesan wrote:
why old games memory was "static" and there was no need of finding pointers?
Older programs were more focused on being small and fast rather than being moddable/patchable or reusable for other projects. As a result more stuff was hardcoded into the exe = static.

kitesan wrote:
when we talk about pointers what we mean actually? how you can represent them in C for example?
A pointer is an integer that contains the address of another variable. That being said cheat engine's pointers are also called pointers in C.
Code:
int Somevar=1; //this is a global static variable
int* SomePtr=&Somevar; //this is a static pointer to Somevar

void main()
{
int** SomePPtr=&SomePtr; //this is a pointer to SomePtr
int*** SomePPPtr=&SomePPtr; //this is a pointer to a pointer to a pointer to Somevar.
}

kitesan wrote:
how do you recognize a game's function call in assembly?
The "call" assembly instruction. Function are only called through other means when you're looking at obfuscated/protected code.
_________________
DO NOT PM me if you want help on making/fixing/using a hack.
Back to top
View user's profile Send private message
kitesan
Expert Cheater
Reputation: 0

Joined: 01 May 2014
Posts: 124
PostPosted: Sun Dec 13, 2015 7:45 am    Post subject: Reply with quote
many thanks
Back to top
View user's profile Send private message
atom0s
Moderator
Reputation: 205

Joined: 25 Jan 2006
Posts: 8587
Location: 127.0.0.1
PostPosted: Sun Dec 13, 2015 2:30 pm    Post subject: Reply with quote
Another thing to keep in mind is that when older games were developed C++ was still in its infancy and the use of OOP code was very scarce. That said, people made use of global variables and such in C which is why you see so many things static in older games, where in C++ with OOP code you see pointers to objects etc.
_________________
- Retired.
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    Cheat Engine Forum Index -> General Gamehacking All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group

CE Wiki   IRC (#CEF)   Twitter
Third party websites