SH7055/SH7058/SH72531/SH72543R Processor Register Listing

dschultz · **Posted:** Sun Apr 01, 2018 12:33 pm

They have not been defined yet.

big_dims · **Joined:** Mon Sep 02, 2019 11:51 am **Posts:** 10

Hello,

19 wrx here. Pulled my base rom and opened in ida pro (is 0xFFFF0000-0xFFFFFFFF correct for SH72543R?)

I'm following along on Get started with IDA and disassembly SH7058. Downloaded XmltoIdc as that seems the next step in the guide, but stumped where I can get ecu_defs.xml and logger.xml.

Any help is appreciated! I'm more than happy to do my own reading/research.

Best,
dima

Puddles · **Posted:** Tue Sep 17, 2019 10:10 am

big_dims wrote:

Hello,

19 wrx here. Pulled my base rom and opened in ida pro (is 0xFFFF0000-0xFFFFFFFF correct for SH72543R?)

I'm following along on Get started with IDA and disassembly SH7058. Downloaded XmltoIdc as that seems the next step in the guide, but stumped where I can get ecu_defs.xml and logger.xml.

Any help is appreciated! I'm more than happy to do my own reading/research.

Best,
dima

ecu_defs viewtopic.php?f=8&t=360

logger_defs viewtopic.php?f=8&t=1642

Using XmlToIdc viewtopic.php?f=40&t=6234

kalisto2002 · **Joined:** Wed May 06, 2015 1:01 am **Posts:** 38

I am struggling to decompile sh72531 based rom in Ida pro.

This is the offset to the power on reset function i believe (according to the Getting started with Ida thread)
but moving there and doing make code gives me this, 0 functions after the fact. i am using the register list in this thread.

How big is my rom section supposed to be?
how big is my ram section supposed to be?

What am i missing, can someone point me in the right direction for this processor type?

biela · **Posted:** Fri May 13, 2022 3:25 pm

Hello

More vectors and register definitions for SH7052 and SH7054 for use with IDA.

Kurosei · **Joined:** Sat Apr 13, 2019 7:44 am **Posts:** 3

Old thread, I know.

But there's not many people doing this anymore...

I am trying to define a JP5E001B rom, that uses a SH7059 ecu.

I am trying to use the SH4B / SH7058 mode in IDA as I haven't found IDA configs for a SH7059.

I'm following this guide here: viewtopic.php?t=8449

I can find my SSM Base address in the rom, but no luck finding the DTC tables. I get about a dozen results for 0335 byte sequence, but none have only 00 & 01 a page above. Plenty of 00 with random other data mix in, but no clean 00 01 00 01 sort of data.

Does anyone have SH7059 configs for IDA? or another way to find DTC tables?

dschultz · **Posted:** Sat Aug 13, 2022 12:59 pm

The diesel DTC listing does not follow the petrol format. In the diesel ROM all the DTC codes are in a single long WORD list. Search for sequence 03410335 and that should get you into the centre of the list. I don't recall how they are enabled/disabled, it's been a long time since I looked at a diesel ROM.
SH7059 is a SH2E processor just like the 7058 but with more RAM. Use SH4B and a RAM section of starting at 0xFFFE8000 length 0x14000.

RomRaider

SH7055/SH7058/SH72531/SH72543R Processor Register Listing

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