Cheat Engine

themandem · Cheater Reputation: 0 Joined: 06 Dec 2019 Posts: 35

is there any way to use the inline ASM function in visual studio for x64 applications? i don't know how to code in C++
so far I had been using inline ASM to make my DLL for hacks/cheats but it was for x86. now I'm working on a x64 game and I cannot find a way

ParkourPenguin · Posted: Fri Aug 18, 2023 10:01 pm Post subject:

That depends on what language and compiler you're using. Look for relevant documentation. e.g. gcc:
https://gcc.gnu.org/onlinedocs/gcc/Using-Assembly-Language-with-C.html
This should be more or less the same in C++ / g++.

themandem · Cheater Reputation: 0 Joined: 06 Dec 2019 Posts: 35

atom0s · Posted: Sat Aug 19, 2023 12:15 am Post subject:

Microsoft's compiler does not support inline assembly when compiling for x64 (or ARM).

You can, however, make use of their MASM build tooling while also compiling a C++ application to build .asm scripts into your application/module. With that, you can then use the scripts you create in asm directly within your C++ code, meaning you can make use of the functions in a similar manner as if you were calling a C/C++ function. Using that setup you can do hooks/detours, patches, etc. to jump to your asm function (assuming you're in an injected DLL etc.) which will mimic the setup of inline asm, just with a bit more work/steps.

You can see how to mix C++ and MASM usage here:
https://programminghaven.home.blog/2020/02/16/setup-an-assembly-project-on-visual-studio-2019/

The same setup works for pretty much all modern versions of Visual Studio, not just 2019.