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Author Topic: Can IDA pro make error on MED9.1?  (Read 3315 times)
AngelPowy
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« on: June 11, 2019, 12:39:35 AM »

Hi everyone, I'm trying to do m hands on IDA pro. I'm working on my audi S3's ecu. At the moment I try to understand well how powerpc works and I'm facing a problem. When I look to LDRXN in IDA it don't give me any cross-reference but the address of LDRXN is located at 1CED4A (so 5CED4A as this part of the rom is mounted with 0x400000 offset). If we take axis with, the address is 1CEF48(5CEF48 with the offset)
In one of the loc there is the right call to LDRXN but the 2 other references are wrong. Is there a way to solve this? Or am I completely wrong?
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littco
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« Reply #1 on: June 15, 2019, 06:42:09 AM »

There's more than 1 ldrxn on the tfsi ecus. Are you referencing the same ones or one of the others?
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AngelPowy
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« Reply #2 on: June 26, 2019, 11:55:44 AM »

Sorry get busy with exams. I am referencing the first 1. There is 3 set of LDRXN/ZK in this file. I'm assuming that the first of each is in use in the file and they are like this:
LDRXN1,2,3 LDRXNZK1,2,3
After some manipulation it seem's that I've been able to correct it.
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