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   Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:03:06 JST Foone🏳️‍⚧️

   oh hello copy protection, fancy meeting you here

   • Embed this notice
     Legit_Spaghetti (legit_spaghetti@mastodo.neoliber.al)'s status on Tuesday, 12-Aug-2025 09:03:00 JST Legit_Spaghetti

     in reply to

     @foone "Normal" went out the window a long time ago around here.

     Haelwenn /элвэн/ :triskell: likes this.
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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:03:01 JST Foone🏳️‍⚧️

     in reply to

     normal people don't do this. normal people don't write 16bit DOS assembly in 2025.

     Haelwenn /элвэн/ :triskell: likes this.
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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:03:02 JST Foone🏳️‍⚧️

     in reply to

     okay I now know HOW to crack the game, I just gotta write the x86 assembly.

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:03:03 JST Foone🏳️‍⚧️

     in reply to

     oh god they overwrite the DOS interrupt 1E in the middle, to make DOS think it's a different kind of floppy disk.

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:03:04 JST Foone🏳️‍⚧️

     in reply to

     they call the copy protection on two different sectors, and throw the out-of-phase error if they give the same result, I think

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:03:04 JST Foone🏳️‍⚧️

     in reply to

     so you can't just overwrite check_copyprotection_sector with return 0

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:03:05 JST Foone🏳️‍⚧️

     in reply to

     oh hey that's fun. this game has two layers of copy protection! if I hack the "check weird sector" code to always return 0 (for found-it), it tells me "Diskette/version out of phase"

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     J.V.B. (denjohn@mas.to)'s status on Tuesday, 12-Aug-2025 09:05:28 JST J.V.B.

     in reply to

     @foone Your reference point for normal people seems to have become like https://xkcd.com/2501/

     Haelwenn /элвэн/ :triskell: likes this.
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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:15:44 JST Foone🏳️‍⚧️

     in reply to

     insert pop-team-epic "you are motherfucker" here

     Haelwenn /элвэн/ :triskell: likes this.
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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:15:45 JST Foone🏳️‍⚧️

     in reply to

     I patched the EXE to have the right value, but then they checksum it, and now the value is wrong!

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:15:46 JST Foone🏳️‍⚧️

     in reply to

     I need a comparative DOS CPU tracer.

     Like, load two copies of the same EXE, and run until the execution diverges

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:15:46 JST Foone🏳️‍⚧️

     in reply to

     THEY CHECKSUM THE FIRST 16KB OF EXECUTABLE RAM?

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:15:47 JST Foone🏳️‍⚧️

     in reply to

     I think they might be depending on the value of the weird sector elsewhere. like they're loading it SOMEWHERE, maybe they overwrite some code?

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:15:48 JST Foone🏳️‍⚧️

     in reply to

     I have 37 bytes. this won't be hard

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 12-Aug-2025 09:15:48 JST Foone🏳️‍⚧️

     in reply to

     and... it doesn't work.
     tertiary copy protection?