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Title: Find Value in Code (Tricore Arch) Post by: unicornux on November 11, 2020, 01:59:34 AM I want to find a value(4 byte) in my algorithm that implemented in a tricore processor.
The line of code that load this value shown below: ld32.w d4, [a0]-0x68D4 Recently some guys(thanks to them) help me find 'a0' value in code in this topic =⇒ http://nefariousmotorsports.com/forum/index.php?topic=18673.msg141137#msg141137 (http://nefariousmotorsports.com/forum/index.php?topic=18673.msg141137#msg141137) So, a0 = 0xD00032E0 Then =⇒ 0xD00032E0 - 0x68D4 = 0xCFFFCA0C (it seems incorrect) But, According to this thread ⇒ http://nefariousmotorsports.com/forum/index.php?topic=6990.msg87488#msg87488 I guess there are a struct that help me find the correct value but I couldn't make or find this struct. Is there any way that I can find the correct value of d4? Title: Re: Find Value in Code (Tricore Arch) Post by: nyet on November 11, 2020, 02:05:01 AM I'd make sure unk_d00032e0 is actually 0xd00032e0
looks like you need to find the equivalent copy_block that tells you where d000032e0 was copied to. Title: Re: Find Value in Code (Tricore Arch) Post by: unicornux on November 11, 2020, 02:27:00 AM looks like you need to find the equivalent copy_block that tells you where d000032e0 was copied to. Yes Yes. Exactly. But how I can find copy_block? I have no idea about that. Title: Re: Find Value in Code (Tricore Arch) Post by: unicornux on November 11, 2020, 11:02:53 PM I think I could find something but it's different with data that other people found before.
Like: Code:
It seems incorrect data but because I want to sure about that I calculated all of the data with this lineup: <unk_D4000000, dword_80020000> Finally, as I expected data was incorrect. So I attach my ECU dump and I would be so happy if you help me due to my file. File uploaded here ==> https://gofile.io/d/peZ812 (https://gofile.io/d/peZ812) Thanks in andvance. Title: Re: Find Value in Code (Tricore Arch) Post by: unicornux on November 13, 2020, 08:00:04 AM I'm pretty sure there is not any Copy_Block in my ECU file.
I explored the whole of the file and I did not find anything. for example : I search 00 D0 ** ** ** 80 (stars can be anythings) in file but it was nothing. I am one step away from success. Title: Re: Find Value in Code (Tricore Arch) Post by: unicornux on November 17, 2020, 10:21:13 PM Related concept about copy_block:
https://reverseengineering.stackexchange.com/questions/26289/what-is-copy-block-struct-in-tricore-arch/26315#26315 (https://reverseengineering.stackexchange.com/questions/26289/what-is-copy-block-struct-in-tricore-arch/26315#26315) |