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SmitdoggAdministrator
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Arcade Hacker: A Journey Into Capcom's CPS2 Silicon - Part 3
#376530 - 05/31/18 02:57 AM


http://arcadehacker.blogspot.com/2018/05/a-journey-into-capcoms-cps2-silicon-part3.html



Kitsune Sniper
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Re: Arcade Hacker: A Journey Into Capcom's CPS2 Silicon - Part 3 new [Re: Smitdogg]
#376533 - 05/31/18 03:08 AM


> http://arcadehacker.blogspot.com/2018/05/a-journey-into-capcoms-cps2-silicon-part3.html

Does anyone know if those unknown bytes in the CPS2 security RAM are the same in various copies of the same board?

It might be something silly, like a marker for the date the security code was compiled / configured, or just a serial code or board info.



MetalliC
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Re: Arcade Hacker: A Journey Into Capcom's CPS2 Silicon - Part 3 new [Re: Kitsune Sniper]
#376675 - 06/05/18 05:21 PM


> Does anyone know if those unknown bytes in the CPS2 security RAM are the same in
> various copies of the same board?
>
> It might be something silly, like a marker for the date the security code was
> compiled / configured, or just a serial code or board info.

they are suspected to be upper encryption limit and sprite control register addresses, but this haven't been confirmed.


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