SDL Now Supports DOS

(github.com)

112 points | by Jayschwa 2 hours ago

9 comments

  • ronsor 1 hour ago
    All that's left now is SDL for UEFI, and then all our games can run in a pre-OS environment.
    • BirAdam 20 minutes ago
      Well… UEFI is kind of modern DOS.
    • chaps 1 hour ago
      That honestly sounds amazing. Imagine booting into something like a grub menu that's just a list of classic games.
      • Xirdus 1 hour ago
        I basically had this setup back in the day. I don't really know how I ended up with it, I was 7 at the time and none of it was intentional - but my bootloader had two entries: I could boot into Windows 98, or I could boot into Worms.
        • Dwedit 54 minutes ago
          It's a similar idea, but that's a DOS menu. At the point when the menu appears, MS-DOS 7.1 has already been loaded.
        • dale_glass 50 minutes ago
          Probably your parents setting it up?

          As far as I know, Worms is a normal DOS game, so the only way for that to happen should be a DOS install configured to just auto-start Worms on boot. Which makes sense as a way to keep a kid away from anything that could cause trouble.

          I very vaguely recall that there used to be a very few PC games that worked as boot floppies and possibly didn't use DOS at all, but it was a rarity and Worms definitely wasn't one.

          • Induane 40 minutes ago
            I bet it wasn't actually the bootloader but something with autoexec.bat - you could setup choices in it and windows was just one launch option.
            • Xirdus 18 minutes ago
              Well, if you treat DOS as a bootloader for Windows 98 - which it was actually - then modifying autoexec.bat would count as setting up the bootloader.
          • Xirdus 20 minutes ago
            No, I set it up. My parents were non-technical. I had a CD-ROM re-release of Worms for DOS from one gaming magazine or another. I guess the installer set it up somewhere somehow but I remember it wasn't easy to get it installed and there were further problems trying to launch it. It's possible the installer itself was a DOS program, not a Windows program.
      • queuebert 1 hour ago
        I would guess a modern BIOS chip is as powerful as an NES, right?
        • snazz 1 hour ago
          You can do substantially more in UEFI than NES-level games. (See https://uefi.org/specs/UEFI/2.9_A/12_Protocols_Console_Suppo...)
        • fluoridation 1 hour ago
          What do you mean by "BIOS chip"? Like, the flash memory that stores the motherboard's firmware? I don't think that contains any processing elements.
          • sedatk 1 hour ago
            BIOS can only manage VESA which is much much slower than the capabilities of a modern GPU, so they might have meant graphical performance in regards to that.
  • alnwlsn 1 hour ago
    This is an especially funny screenshot as DosBOX itself is built on SDL.
  • vunderba 55 minutes ago
    Awesome. I wonder how this would work with a 386+ targeted MS-DOS executable from FreeBASIC, which supports binding to SDL.

    [1] - https://github.com/freebasic/fbc

  • jlokier 46 minutes ago
    Perfect! I was just doing some Turbo C development inside DOSBox-X inside Debian GNU/Linux inside VMware Fusion inside macOS this morning.
    • bpavuk 28 minutes ago
      you may also enjoy watching Inception then :)
  • Dwedit 1 hour ago
    Technically this already worked with HXDOS, which emulated DirectDraw well enough that SDL could use it.
  • shevy-java 5 minutes ago
    Good - now we can play more DOS games again!
  • dwedge 1 hour ago
    I got really confused and thought this was sdf, I only read the comments and none of them made sense
  • raverbashing 1 hour ago
    Well I guess Allegra was a bit old already /s
    • sedatk 22 minutes ago
      I loved Allegra! Saved me a lot of time when I was writing code for our musicdisk. That was 29 years ago though. :)
  • jan_Sate 1 hour ago
    Uhm... excuse me? Why? Is there anyone even using DOS for anything serious these days?
    • mrweasel 36 minutes ago
      Perhaps not serious, but I think people gravitate towards older systems these days because they are easier to conceptualize. It's not unrealistic for a single person to have a complete grasp of e.g. the C64 and it's programming environment. DOS is similarly constraint, but also easier for you to form a more or less complete mental model around.

      Some people love computers and making them do weird stuff, older computers make certain tasks feel more manageable.

    • kjs3 5 minutes ago
      Because it's fun, at least for certain folks? Crazy, right?
    • sedatk 1 hour ago
      Most computers in Turkey come with FreeDOS preinstalled because there's a law that states all computers must be sold with an operating system. FreeDOS turns out to be the cheapest and easiest.

      That's why you don't let people who have never touched a computer write tech laws. You get results like this.

      • Dwedit 1 hour ago
        The really weird case is where the computer isn't actually compatible with DOS, so they put in a locked-down Linux distro that emulates FreeDOS.
        • ronsor 1 hour ago
          Wasn't it Dell or HP that did this? IIRC it was FreeDOS-on-QEMU-on-X11-on-Linux.
      • unleaded 50 minutes ago
        Those types of laws aren't all that bad.. they got us this: https://segaretro.org/Dottori_Kun
      • wk_end 1 hour ago
        Is there a reason they don't go with Ubuntu or something like that instead?
        • prmoustache 59 minutes ago
          I guess they don't want to get support's call. DOS looks like firmware for non techies.
    • wk_end 1 hour ago
      Who said anything about "serious"?

      (FWIW: I suspect there are more than a few old industrial control systems and such out there that are still running DOS, just because of an "if it ain't broke, don't fix it" attitude)

    • gbin 1 hour ago
      The real question is "why not?" :)
      • spijdar 1 hour ago
        I think this PR is awesome, and I can totally see myself playing around with this at some point. Being able to create DOS executables of SDL projects is just ... cool!

        But I do wonder about the practicality. This would, I presume (never done DOS development, never touched a memory extender) only run on 386+ CPUs, and maybe more importantly, probably require a newer CPU than that to run anything non-trivial at acceptable performance. So I wonder how many "real DOS machines" this can practically target.

        Still, it is massively cool.

    • queuebert 1 hour ago
      There used to be stock exchanges running happily on DOS. Maybe there still are.
      • BirAdam 17 minutes ago
        Most use Linux now, and specifically RHEL. I did see some IBM z, but that was specifically for one old DB that handled oil pipeline stuff.
      • chaps 1 hour ago
        Worked at an exchange in 2007/2008 and... we had systems still running from the 80s. Mostly tape audit stuff.
    • mikepurvis 1 hour ago
      Hacker News
    • benatkin 10 minutes ago
      SDL is written in C. So it can support it without too much trouble. And some people are compiling stuff to run on DOS. So it makes sense. And your objection doesn't hold any water.
    • alnwlsn 1 hour ago
      because you can