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moleeater
How do I cheat?
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Joined: 28 Feb 2025
Posts: 4
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 Posted: Fri Feb 28, 2025 11:25 pm Post subject: noob help, how to access a table value from a script |
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Hi, i am a beginner in Cheat Engine, i would like to allow the user to have a normal value in his cheat table, that he can edit freely, and i would like to have a script in this table, that can read the value of what the user has set, and use it in the script, edit it into the ram. I would not like to search for the pointer of the vanilla value in the ram, i would like to make my own value in the ram.
This is my current table, it is not working on clicking the checkbox:
| Code: |
<CheatEntry>
<Description>Camera FOV -- enable</Description>
<ID>6</ID>
<VariableType>Auto Assembler Script</VariableType>
<AssemblerScript>
// ModuleCamera::UpdateCameraFXs
// v101->camera_parameters.field_of_view = (float)((float)(v69 * 0.5) + 1.0) * 0.6981317007977318;
// (this_02->camera_parameters).field_of_view = (fVar16 * 0.04 * 0.5 + 1.0) * 0.6981317;
[ENABLE]
globalalloc(camera_fov_value, 8)
camera_fov_value:
dd (double)0.6981317007977318
aobscanmodule(vanilla_address6, prog.dll, ****************660F5AC0F30F118118060000C7456700000000488D5567E896753300F3410F10858000)
registersymbol(vanilla_address6)
alloc(modded_address6, 0x20, vanilla_address6)
modded_address6:
mulsd xmm0, [camera_fov_value]
jmp vanilla_address6+8
vanilla_address6:
jmp modded_address6
[DISABLE]
vanilla_address6:
db F2 0F 59 05 4A 4A 49 00
unregistersymbol(vanilla_address6)
dealloc(modded_address6)
</AssemblerScript>
<CheatEntries>
<CheatEntry>
<Description>Camera FOV -- value</Description>
<ID>7</ID>
<VariableType>Double</VariableType>
<Address>camera_fov_value</Address>
</CheatEntry>
</CheatEntries>
</CheatEntry>
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Am i using the CheatEntry correctly? Am i referencing it correctly? Where is the error? Please help me, thank you!
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Dark Byte
Site Admin
 Reputation: 470
Joined: 09 May 2003
Posts: 25768
Location: The netherlands
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| Posted: Sat Mar 01, 2025 1:26 am Post subject: |
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change
| Code: |
mulsd xmm0, [camera_fov_value]
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to
| Code: |
push rax
mov rax,camera_fov_value
mulsd xmm0, [rax]
pop rax
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or change
| Code: |
globalalloc(camera_fov_value, 8)
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to
| Code: |
alloc(camera_fov_value,8,prog.dll)
registersymbol(camera_fov_value)
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_________________
Do not ask me about online cheats. I don't know any and wont help finding them.
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moleeater
How do I cheat?
![]() Reputation: 0
Joined: 28 Feb 2025
Posts: 4
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| Posted: Sat Mar 01, 2025 4:10 am Post subject: |
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Thank you for your help!
Another question, if i may hijack this thread, how do reference the value (not pointer) of a CheatEntry in {$asm} ?
| Code: | | mov dword ptr [r13+0x618], camera_fov_value |
wrote in ram a different value. Do i need to put it into a register, like
| Code: | push rax
mov rax, [camera_fov_value]
mov dword ptr [r13+0x618], rax
pop rax |
?
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ParkourPenguin
I post too much
 Reputation: 152
Joined: 06 Jul 2014
Posts: 4691
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| Posted: Sat Mar 01, 2025 12:33 pm Post subject: |
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Use square brackets to access the memory at an address.
Most instructions can only access one memory address at a time. Memory-to-memory `mov` instructions aren't possible.
Use a register as you said, but use the right size for the data you're moving:
| Code: | push rax // back up the entire 8-byte register
mov eax,[camera_fov_value] // move 4 bytes
mov [r13+618],eax // ^
pop rax // restore the entire register |
_________________
I don't know where I'm going, but I'll figure it out when I get there. |
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