NtDoom running inside the Windows kernel.

      • ByteSorcerer@beehaw.org
        4·
        1 year ago

        The main reasons why it’s Doom specifically are also because:

        • The game is open-source: https://github.com/id-Software/DOOM/pulls?q=is%3Aopen+is%3Apr This makes it much more doable to port it to other platforms (and to strip out anything not absolutely required to get the first level to run when you run into technological limitations) than when you have to rely on unofficial modding tools.

        • It’s nearly 30 years old and designed for computers with only a few megabytes of memory and for processors of well under 100MHz, which are specs which the majority of modern systems have, even embedded systems. It also renders fully on the CPU and doesn’t require specific hardware like a GPU or a specific graphics chip.

        • Being a first person shooter with 3D-ish visuals it looks a lot more impressive than if you show off a simple game like Pong orTetris or something like that. It has the right balance between performance requirements and impressiveness, and it’s also a game that was very popular in its time and it’s instantly recognisable to a lot of people.

  • uint8_t@beehaw.org
    13·
    1 year ago

    Your scientists were so preoccupied with whether or not they could, they didn’t stop to think if they should.

  • M_Djallo@feddit.it
    4·
    1 year ago

    I’m ignorant, but what does this means? I mean, what’s the difference running it “in the kernel” and running it normally on windows?

    • LedgeDrop@lemm.ee
      18·
      1 year ago

      Windows (and most other operating systems) have a “user land” and a “kernel space”.

      “user land” is where all your applications run. A “user land” application can only see other applications and files owned by the same user. Eventually, a user land app will want to do “something”. This can be something like read a file from disk, make a network connection, draw a picture on the screen. To accomplish this, the user space app need to “talk” to the kernel.

      If user space apps were instruments being played in an orchestra, the kernel would be the conductor. The kernel is responsible for making sure the user land apps can only see their respective users files/apps/etc.

      The kernel “can see and do everything”, it reports to no one. It has complete access to all the applications and every file. Your device drivers for your printer, video card, ect all run in “kernel space”.

      Basically, the OPs link: they’ve ported Doom to run effectively like a device driver. This means that if doom crashes, your PC will blue screen.

      This has no practical purpose, other than saying “yeah, we did it” :)

    • Gradinko@kbin.social
      13·
      1 year ago

      It means that all the code is running in privileged kernel mode instead of user mode. Kernel mode is usually reserved for the operating system and device drivers only. If code running in kernel mode has an unhandled exception or error, the entire system will crash. This creates the BSOD or “blue screen of death” on Windows.

      User mode is less privileged and where all your typical applications run. If something crashes in user mode, it only crashes that process, not the whole system.

      It’s a crazy thing that they did. Very impressive technically, but not really useful.

      • AnarchistArtificer@slrpnk.net
        1·
        1 year ago

        Very impressive technically, but not really useful.

        Those are my favourite kinds of shitposts. I find them legitimately beautiful