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denizdeni
How do I cheat?
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Joined: 09 Dec 2018
Posts: 2
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 Posted: Sun Dec 09, 2018 12:41 pm Post subject: GetAsyncKeyState x64 crash |
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hi guys.
i wanted to use getasync on my assembly code but it's not work. i used breakpoint, it's crashing after some game static address (it's 100-150 lines after). and it's crashing without pressed key. **and i can't press key because it's crashing xD**
my Assembly Code
| Code: |
[ENABLE]
alloc(newmem,2048,"eurotrucks2.exe"+71D670)
alloc(multiplier,4)
alloc(limit,4)
alloc(limitreverse,4)
label(returnhere)
label(exit)
multiplier:
dd (float)1.014
limit:
dd (float)80
limitreverse:
dd (float)-15
newmem:
comiss xmm0,[limit]
jbe test1
jae returnhere
test1:
comiss xmm0,[limitreverse]
jbe returnhere
push rax
push rcx
push rdx
pushfq
push 'W'
call GetAsyncKeyState
shr ax,#15
cmp ax,1
jne exit
mulss xmm0, dword ptr[multiplier]
movss [rax+rdi*4],xmm0
jmp exit
exit:
popfq
pop rdx
pop rcx
pop rax
jmp returnhere
"eurotrucks2.exe"+71D670:
jmp newmem
returnhere:
[DISABLE]
dealloc(newmem)
"eurotrucks2.exe"+71D670:
movss [rax+rdi*4],xmm0
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ParkourPenguin
I post too much
 Reputation: 152
Joined: 06 Jul 2014
Posts: 4723
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| Posted: Sun Dec 09, 2018 3:58 pm Post subject: |
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Windows x64 calling conventions are completely different.
https://docs.microsoft.com/en-us/previous-versions/ms235286%28v=vs.140%29
e.g. sleep:
| Code: | push rbp
mov rbp,rsp // establish new stack frame
and spl,F0 // align stack on 16-byte boundary
sub rsp,20 // scratch space
mov ecx,#5000 // 1st parameter
call kernel32.sleep
mov rsp,rbp // tear down stack frame
pop rbp |
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denizdeni
How do I cheat?
![]() Reputation: 0
Joined: 09 Dec 2018
Posts: 2
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| Posted: Mon Dec 10, 2018 7:57 am Post subject: |
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| ParkourPenguin wrote: | Windows x64 calling conventions are completely different.
e.g. sleep:
| Code: | push rbp
mov rbp,rsp // establish new stack frame
and spl,F0 // align stack on 16-byte boundary
sub rsp,20 // scratch space
mov ecx,#5000 // 1st parameter
call kernel32.sleep
mov rsp,rbp // tear down stack frame
pop rbp |
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any code for getasynckeystate x64? i don't figure anything
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