Help/Support Modding setter method in IDA?

[ThePianoGuy 2.9k 14]

Hi

 

Should i mod setter methods in IDA?  i'm not sure if it is possible... i always mod getter methods.

 

about PUSH and POP. can i simply replace it or should i keep it like this?

PUSH {R4,LR}
MOV R0, R7
POP {R4,PC}

Here is the full ARM assembly code

_DWORD __fastcall Hero::SetCriticalDmg(Hero *__hidden this, unsigned __int16)
EXPORT _ZN4Hero14SetCriticalDmgEt
_ZN4Hero14SetCriticalDmgEt              ; DATA XREF: .data.rel.ro:00BCD0E8o
PUSH    {R4,LR}
MOVS    R4, R0
BL      _ZN5Actor14SetCriticalDmgEt ; Actor::SetCriticalDmg(ushort)
LDR     R3, =0x5EC
LDR     R0, [R4,R3]     ; this
CMP     R0, #0
BEQ     locret_4AD148
BL      _ZN13PlayerInfoMgr14IncHeroDataVerEv ; PlayerInfoMgr::IncHeroDataVer(void)
locret_4AD148                           ; CODE XREF: Hero::SetCriticalDmg(ushort)+Ej
POP     {R4,PC}

[castix 18.4k iPhone X 12.1.1]

What game is dat

 

Converting it to MS you will get the function (void)setCriticalDamage:(unsigned short). I don't know about IDA but in MS and MSHook you can hack it

void _ZN4Hero14SetCriticalDmgEt(ushort damage) {
return old__ZN4Hero14SetCriticalDmgEt(9999);
}

[ThePianoGuy 2.9k 14]

 

What game is dat

 

Converting it to MS you will get the function (void)setCriticalDamage:(unsigned short). I don't know about IDA but in MS and MSHook you can hack it

void _ZN4Hero14SetCriticalDmgEt(ushort damage) {
return old__ZN4Hero14SetCriticalDmgEt(9999);
}

it's Final Fable

 

but if i set the number to 65025 like this

MOV R0, #0xFF
MOV R1, #0xFF
MULS R0, R1
BX LR

max value will be 1 and it goes down to negative value. how do i do