Cheat Engine

danrevella · Posted: Sat Mar 08, 2014 5:12 pm Post subject: target process is 32 or 64 ?

Hi!!
I have a very simple lua script that tell me if the target game is a 32 or 64 bit process:

mgr.inz.Player · Posted: Sun Mar 09, 2014 7:12 am Post subject:

- auto-generated 32bit trainer can only attach to 32bit processes. And it works on 32bit OS and 64bit OS (Win32, Win64).

- auto-generated 64bit trainer can attach to 32bit processes and 64bit processes. But it works only on 64bit OS.

- Why? Because 32bit CheatEngine can only attach to 32bit processes (and works on both Win32 and Win64) AND 64bit CheatEngine can attach to 32bit processes and 64bit processes (and works only on Win64)

- most people makes 32bit trainer for 32bit processes ("target process is 32bit") and 64bit trainer for 64bit processes ("target process is 64bit").

Conclusion:
- you can use [32-bit], [/32-bit], [64-bit] and [/64-bit] tags in your AA scripts and then create 64bit trainer, it will be two-in-one (for 32bit game version and 64bit game version), but it will only work under Win64.

- or you can merge both CT files you created (one for 32bit game version and one for 64bit game version). In "Lua Script" you can use targetIs64Bit() function and decide which script you want to enable. (AA script can be pasted entirely in "Lua Script" window, you just use autoAssemble() function). Then save it as 64bit trainer. It will be 2-in-1.

- you can also make 2-in-1 trainer, working on both Win32 and Win64. But it will increase trainer size greatly.

- in few weeks, there will be no more security updates or technical support for the Windows XP OS. Year or few after, expect more 2-in-1 trainers. Because, for some games, 32bit architecture is enough.

EDIT:
Actually [32-bit], [/32-bit], [64-bit] and [/64-bit] do not work for games. I thought it is a global feature...
But, you can write a Lua function which will strip cpu specific code from AA script.

danrevella · Posted: Sun Mar 09, 2014 7:29 am Post subject:

Ahhhh.... OK!! Very Happy

A bit complicate, but now is clear..
In my good old days I used gamewizard+Softice for dos, but it was more easy....
BTW, there is still a little pending question:

Dark Byte · Posted: Sun Mar 09, 2014 8:07 am Post subject:

You could just look at the assembler code.
if it uses R** registers as address specifier, it's 64-bit

anyhow, copy this lua file to the autorun folder inside cheat engine and when you open a process it'll show if it's 64-bit or 32-bit

danrevella · Posted: Sun Mar 09, 2014 8:12 am Post subject:

mgr.inz.Player · Posted: Sun Mar 09, 2014 8:13 am Post subject:

danrevella · Posted: Sun Mar 09, 2014 8:24 am Post subject:

Very good!!!
two solution for my problems.....
I had to better understand Lua in general: it is really strong!!!