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Code Injection: Load floating number as integer. How to ?

 
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Zaladine
Expert Cheater
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Joined: 14 Oct 2012
Posts: 129
Location: Djokdja, Indonesia
PostPosted: Sat May 16, 2020 9:09 am    Post subject: Code Injection: Load floating number as integer. How to ? Reply with quote
So I have 2 addresses:
- Current HP (4 bytes integer) at address Player+08
- Max HP (float) at address Player+0C

I would like to make a code injection to freeze my Current HP at the same value as Max HP.

What command in ASM should I use?
I believe this is the exact opposite of FILD command.
I've tried to google it, but my English got in the way of searching the correct keyword.

Thank you very much in advance.
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ParkourPenguin
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Joined: 06 Jul 2014
Posts: 4722
PostPosted: Sat May 16, 2020 9:54 am    Post subject: This post has 1 review(s) Reply with quote
Code:
cvtss2si eax,[rsi+C]
mov [rsi+8],eax

Backup eax with push/pop or use a different register that's not in use.
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Zaladine
Expert Cheater
Reputation: 3

Joined: 14 Oct 2012
Posts: 129
Location: Djokdja, Indonesia
PostPosted: Sat May 16, 2020 11:05 am    Post subject: Reply with quote
Yes... i guess that's the one i need.

Thank you very much!.




---------------------------

EDIT:
Penguin, Sir... Thanks to you, I managed to make invincibility for my own CT of Ace Combat 7 v1.01.

Code:
[ENABLE]
alloc(newmem,2048,"Ace7Game.exe"+5C4AB7B)
label(returnhere)
label(originalcode)
label(exit)

newmem:
push eax
cvtss2si eax,[rcx+000004C4]
imul eax,#10
mov dword ptr [rcx+00000AEC],eax
pop eax

originalcode:
movd xmm0,[rcx+00000AEC]

exit:
jmp returnhere

"Ace7Game.exe"+5C4AB7B:
jmp newmem
nop
nop
nop
returnhere:


 
 
[DISABLE]
dealloc(newmem)
"Ace7Game.exe"+5C4AB7B:
movd xmm0,[rcx+00000AEC]
//Alt: db 66 0F 6E 81 EC 0A 00 00


Thanks again!. Wink Cool
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