Help/Support How to make a int version return false in IDA?

[Ted2 39.2k iPhone 13 Pro 16.0 Donor]

hi,

 

So I got this function:

 

Coins - (int)cheated
__text:0003F99C
__text:0003F99C ; int __cdecl -[Coins cheated](struct Coins *self, SEL)
__text:0003F99C __Coins_cheated_
__text:0003F99C                 MOV             R1, #(_OBJC_IVAR_$_Coins.cheated - 0x3F9A8) ; int cheated;
__text:0003F9A4                 ADD             R1, PC  ; int cheated;
__text:0003F9A6                 LDR             R1, [R1] ; int cheated;
__text:0003F9A8                 LDR             R0, [R0,R1]
__text:0003F9AA                 BX              LR

 

Iknow I could MSHook this, but I wanna practice IDA..

So.. how would I return the int to 0?

 

I've no idea which one I have to change..

 

I thought the first MOV to MOV R1, #0 but I don't think it worked..

 

help would be great!

[Archangel04 33.1k iPhone 7 14.3]

writeData(0x3F99C, 0x00207047);

Updated May 4, 2017 by Archangel04

[Rook 566.8k iPad Pro (2nd gen) 17.4 Donor]

Use MOV R0, #0 (00207047)

This is covered in one of Zahir's hacking videos.

[Archangel04 33.1k iPhone 7 14.3]

i.e mov r0, #0 then bx lr. 

LDR             R0, [R0,R1] is your coins cheated i think

1 minute ago, DiDA said:

Use MOV R0, #0 (00207047)

This is covered in one of Zahir's hacking videos.

Beat you ( ͡° ͜ʖ ͡°)

Updated May 4, 2017 by Archangel04

[Ted2 39.2k iPhone 13 Pro 16.0 Donor]

1 minute ago, Archangel04 said:

i.e mov r0, #0 then bx lr. 

LDR             R0, [R0,R1] is your coins cheated i think

 

 

2 minutes ago, DiDA said:

Use MOV R0, #0 (00207047)

This is covered in one of Zahir's hacking videos.

Thanks guys

[Joka 3.9k iPhone X 12.4]

1 minute ago, Archangel04 said:

i.e mov r0, #0 then bx lr. 

LDR             R0, [R0,R1] is your coins cheated i think

Beat you ( ͡° ͜ʖ ͡°)

Lol