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Can't use label in AOB injection

 
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boogiepoppu
How do I cheat?
Reputation: 0

Joined: 25 May 2020
Posts: 1
Location: United States
PostPosted: Mon May 25, 2020 8:31 am    Post subject: Can't use label in AOB injection Reply with quote
I'm kinda new to cheat engine and I'm trying to define a float, give it a label, and move that value into an address. But I keep getting this error message
"Error in line 21 (mov [rdx+4],[ffffffffffffffff]): This instruction can't be compiled"


Here's my script:

Code:

[ENABLE]

aobscanmodule(INJECT,UnityPlayer.dll,0F 29 1A A8 07 74 5E) // should be unique
alloc(newmem,$1000,"UnityPlayer.dll"+546267)

label(code)
label(return)
label(floatHeight)

newmem:
  code:
    movaps [rdx],xmm3
    mov [rdx+4],[floatHeight]
    test al,07
    jmp return

  floatHeight:
    dd (float)10.0

  INJECT:
    jmp newmem
    return:

registersymbol(INJECT)
registersymbol(floatHeight)

[DISABLE]

INJECT:
  db 0F 29 1A A8 07

unregistersymbol(INJECT)
dealloc(newmem)


What am I doing wrong? And why does my label evaluate to 'ffffffffffffffff?'
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ParkourPenguin
I post too much
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Joined: 06 Jul 2014
Posts: 4754
PostPosted: Mon May 25, 2020 10:17 am    Post subject: Reply with quote
fff... is just a placeholder while CE checks the syntax of your script.

There is no mov instruction that allows you to move from one address into another address. You have to use a register as an intermediary.
Code:
push rcx
mov ecx,[floatHeight]
mov [rdx+4],ecx
pop rcx

Also, your script should work fine without this, but you should put this before floatHeight:
Code:
align 4 CC
floatHeight:
  dd ...
Or just give floatHeight its own alloc.
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