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Author Topic: Resident Evil [PSX] change protection  (Read 1 times)
« on: January 24, 2010, 12:49:29 pm »

Hey, guys! Looks, like RE has some copy protection, cause it hangs on any filechange. Surprisingly pirated discs with translated data has byte-hack, which owerwrites a command to nop:

But I don't get how does the trick work? And why did developers need this strange command 'sra $0, 0' It does nothing, Just like nop...
« Reply #1 on: January 24, 2010, 07:51:17 pm »

There is a topic about this somewhere.
You should talk to Phoenix from SadNES city.
I believe he was the one to figure it out.
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