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Ask Slashdot: DOSBox, or DOS Box?

An anonymous reader writes "Are DOS game emulators like the highly-respectable DOSBox good enough now, or is there still no substitute for the real thing? Like a lot of Slashdotters I'm getting older and simplifying, which means tossing out old junk. Which means The Closet full of DOS era crap. And I'm hesitating — should I put aside things like the ISA SoundBlaster with gameport? Am I trashing things that some fellow geek somewhere truly needs to preserve the old games? Or can I now truck all this stuff down to recycling without a twinge of guilt? (Younger folk who didn't play DOOM at 320x200 should really resist commenting this time. Let the Mods keep them off our lawn.)"

61 of 585 comments (clear)

  1. Long term... by seifried · · Score: 5, Interesting

    We're better off with DOSbox, emulators tend to last a lot longer than physical hardware. Plus we can just keep layering emulators (DOSBox in Linux in VMware on top of whatever comes next).

    1. Re:Long term... by cpu6502 · · Score: 3, Insightful

      Unless your game is using a non-standard keyboard. Example: Try playing Sid Meier's Red Storm Rising on an emulator. Since he wrote it to work with a C64 keyboard, you really need a C64. Hence the need for the original hardware.

      But other than that, yes I agree emulators are easier to maintain and keep working. Unless you are playing Zelda: Ocarina of Time which uses the unique N64 controller, and is nigh-impossible to play on an emulator.

      --
      My AC stalker: " I personally agree with your posts most of the time, but that won't keep me from modding you troll"
    2. Re:Long term... by mellon · · Score: 2

      Yup. Also, it's not that hard to reverse engineer the hardware the game expects to talk to if you really want to play it. Actually, in my foggy memory of Apple ][ game hacking, I am pretty sure that hacking the game was more fun than playing it anyway.

    3. Re:Long term... by flyneye · · Score: 2

      Wul, is there really a problem with having a small DOS partition?

      --
      *Repent!Quit Your Job!Slack Off!The World Ends Tomorrow and You May Die!
    4. Re:Long term... by FlyingCheese · · Score: 2

      The DOS partition isn't the problem at all. It's that DOS doesn't run on modern hardware.

    5. Re:Long term... by arth1 · · Score: 4, Informative

      DOS runs just fine on modern hardware.

      Including modern hardware that doesn't have a floppy drive, doesn't have PS/2 or serial ports for the keyboard, the video card doesn't support VESA, and the hard drive uses 4 kB alignment instead of 512 byte alignment, and boots through EFI instead of BIOS?

      The new systems that can run DOS out of the box without adding legacy hardware are becoming fewer every day.

    6. Re:Long term... by AmiMoJo · · Score: 2

      I made a device that lets you use N64 controllers, as well as many others, with a PC via USB. Works well with emulators and the whole project (software and hardware) is open source: http://denki.world3.net/retro_v2.html

      I should also point out that I do sell these things, but you are of course able to make your own with the downloads available on the site. I even do kits at pretty much cost price if anyone is interested.

      I also converted a BBC Master Compact keyboard to USB, but almost any old computer could be modified this way. The BBC used for this hack was dead already so nothing was lost. I also added a little audio amp to run sound from a soundcard to the internal speaker. I wanted to re-use the sound IC but it would be a major project. http://denki.world3.net/beebkb.html

      You can't beat the original controllers.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  2. no substitute for the real thing by Drogo007 · · Score: 5, Informative

    Not for DOS-era games, but the ones that came just after that (Dungeon Keeper 2, Roller Coaster Tycoon, Need For Speed 4, etc)

    I've spent a lot of hours trying to get those games running reliably in a Win7 environment with no success (compatibility mode, virtual machines, etc).

    1. Re:no substitute for the real thing by JBMcB · · Score: 5, Interesting

      Yeah, the games designed for Win98 just don't work well on anything after XP. Most don't work that well in XP, either.

      Here's a fantastic rig for Win98 games:

      1GHz P3 on an AOpen A34 motherboard
      256MB RAM
      GeForce 2 AGP video card
      Turtle Beach Santa Cruz audio card
      Intel Pro/100 Ethernet
      500GB HD

      Running Windows 98SE with the unofficial 2.1a service pack, DX9, MP9, IE6, and KernelEx to run more recent browsers.

      The nice thing about the above hardware combo is that it was supported until fairly recently - most of the kinks have been worked out in the supported games. The GeForce 2 has enough horsepower to play nearly every 98 era game at 1024x768 res as fast as your monitor can refresh.

      --
      My Other Computer Is A Data General Nova III.
    2. Re:no substitute for the real thing by Urza9814 · · Score: 3, Informative

      Try Linux. Seriously. I've gotten a lot of the older Westwood games (original Command and Conquer and Red Alert, Renegade, etc) to run perfectly under Wine (or occasionally Cedega, though I can't remember if that was actually necessary -- I just happened to be using it at the time) when I couldn't get them to run no matter what I tried under XP.

    3. Re:no substitute for the real thing by drinkypoo · · Score: 2

      I've actually found that Windows XP x32 is about the last place that most of the Windows 9x games will work. Often I don't even need to use compatibility mode; usually it doesn't seem to help anyway :) But on anything after XP they usually don't work, or at least, don't work quite right.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    4. Re:no substitute for the real thing by Anonymous Coward · · Score: 5, Informative

      W98 gaming is a different pile than my closet of DOS crap.* With 98se you're pretty good well into about 2004 for hardware.

      These are the last vidcards with support.
      http://en.wikipedia.org/wiki/GeForce_6_Series
      http://en.wikipedia.org/wiki/Radeon_R420
      The ATI x800/x850 only have beta support on the Catalyst 6.2 driver. Beta because they didn't make the 2004 cutoff for MS Certification. Also you'll have to search around to find the link to that driver's page -- you can't get there from ATI's front page.

      W98se can recognize over 2 gigs of RAM, but will seldom access it.

      There are hacks to deal with most any size IDE drive. SATA depends on whether your controller chip has a w98 driver though. Also note this page on same site as the "real thing" for actually installing 98 on a SATA. (That guy has great stuff. I hope he enjoys the /.ing.)
      http://www.flaterco.com/kb/W98.html

      There doesn't seem to be a CPU limit in 32bit. Basically it seems you can use the fasted chip you can fit in an AGP motherboard.

      Look for PCI Soundblaster cards with gameport. Some w95 era games may not like USB joysticks, and gameports are _very_ rare on AGP motherboards.

      That's the basics. With any w98se install, the most stable system is /don't/ use the official upgrade packs. Search around for the unofficial one. Also /don't/ install any major MS software like Word or IE updates -- those always make a dicier machine. And for godsakes keep it offline 'cause it's insecure as heck now. But you'll have a terrific gaming box for all sorts of classics from about 1995 to 2004. Enjoy.

      Oh -- and also look for the patch to make w98se recognize USB memory sticks. That's way useful.

      *yup, I'm the story submitter, though of course as AC no proof.

    5. Re:no substitute for the real thing by jluzwick · · Score: 3, Informative

      Here's what I did, tell me if this works or if it's a bust. I clearly remember hitting a wall for a while before I discovered how to get it to run without crashing.

      This is working on a Windows 7 64-bit PC with an ATI gfx card.

      Assuming you have installed the DK2 and have a shortcut to the DKII.exe (otherwise make a shortcut to this)
      Then right-click open up properties.


      In compatibility add these settings:
      Run in Windows 2000
      (Unchecked) Run in 256 Colors
      (Unchecked) Run in 640 x 480 screen res
      (Checked) Disable visual themes
      (Checked) Disable desktop composition
      (Checked) Disable display scaling on high DPI settings
      (Checked) Run program as admin.


      Then in the registry you need to go:
      HKEY_CURRENT_USER->Software->Bullfrog Productions Ltd->Dungeon Keeper II->Configuration->Video
      EngineID=4
      ScreenHardware3D=0 (disables hardware acceleration)


      The registry stuff did the trick for me. Also I didn't patch any of the non-bullfrog ones, I used whatever the last bullfrog patch was.


      This website helped with installation: http://404forums.net/archive/index.php/t-4459.html


      Tell me if this helped you at all. If it didn't then tell me the error you get and it might remind me if I forgot to mention anything.

    6. Re:no substitute for the real thing by cbope · · Score: 2

      Seconded. I have my so-called "legacy" game system, mainly for pre-Win98 DOS games, plus a few Win9x era games:

      200MHz Pentium Pro (yes, a Pro, not a plain Pentium. If you don't know what that means, you're too young)
      64MB RAM
      Some PCI video card (can't recall at the moment what it is)
      ISA Creative Sound Blaster AWE64
      1GB HD
      5.25 and 3.5 floppy drives
      4x CD-ROM
      3Com 10/100 Ethernet card
      Dual-boot Win98SE / DOS 6.2
      Small tower case with 200W PS

      A 500GB HD is WAY overkill for such a system. Even if I archived every old pre-2000 game I ever owned, it would all fit in under 1GB. Remember, games in the DOS days came on floppies, both 5.25 and 3.5". Total installed game size was a few megabytes at best, maybe 5-10MB average. A big game might be close to 50MB, but that was already creeping into Win9x days.

      Running on "real" hardware beats emulators every time. Besides, how much space does one old box take up anyway? Use a KVM switch and you don't need a separate KVM for your legacy system. Mine, I keep in the closet most of the time, and only haul it out when I want to play Doom or some other old DOS game.

      To be honest, I tried DOSbox some time ago, but not recently. It was just simpler to dig up old hardware and throw together my legacy box, rather than tweak DOSbox to get old games running. Maybe emulation has improved over time, but it will likely never match running on real iron.

    7. Re:no substitute for the real thing by keithjr · · Score: 2

      There's a cross-platform port for duke3d. You don't need an emulator.

  3. Good riddance by VirexEye · · Score: 4, Interesting

    The more physical things we can get rid of, the better

    I for one I'm quite happy to not have a closet full of 286/386/486/PIIs/PIIIs/etc boxes and peripherals... so much less stuff to store/maintain/move. It also makes you look like a sane person when you bring a woman home =)

    1. Re:Good riddance by PsychoSlashDot · · Score: 5, Insightful

      It's that word. "Closet". That says it all.

      The question being asked wasn't "should I get rid of all of the fun stuff I use every day that's sitting in my entertainment room?" Instead it was "can I throw out my unused crap that's all in storage, neglected?"

      All that stuff about emulators is just a smokescreen. You're not playing your legacy DOS stuff now, you won't tomorrow, and the day after that you'll be dead. It's a real trick to recognize when you're saving stuff because you have sentimental value attached to the memories, not the stuff itself.

      --
      "Oh no... he found the .sig setting."
    2. Re:Good riddance by epyT-R · · Score: 4, Insightful

      no.. it just suggests to her that you'll willingly submit to her whims and judgments about your lifestyle when you're married and she asks you (tells you) to sell your hobby (whatever it is) off so 'we' can afford to do whatever is that she thinks is important..

      if you like that stuff, keep it.. if she hates it, you're with the wrong girl. just hit it and leave it.

    3. Re:Good riddance by VocationalZero · · Score: 2

      So by this logic I should throw out all my classic movies that I'm not currently watching? :\

      DOS Box is a top notch emulator if you learn the commands. I finished a replay of an old game (Wing Commander I & II) and part of Ultima Underworld about four months ago. Just because I haven't played UU in a while does not mean I will never do it again and I that I should trash my old games.

      If you are seriously considering throwing out your old games I beg of you considering putting them up on ebay or something for those of us who still care.

    4. Re:Good riddance by leamanc · · Score: 3, Insightful

      I think you hit the nail on the head. It's really about getting older, priorities shifting, and having less time to play around with this old stuff.

      Being a long-time Apple user, I used to love to let people donate their old hardware to me, and I'd spend time digging up the latest System Software/Mac OS it would run, cram all the 30-pin SIMMS it would take into it, and installi the latest versions of Excel, Photoshop, etc., it cold run. I would proudly show it off to those who could give a shit, to show how old hardware could still be useful, how I could bridge it into my WiFi network, connect to OS X boxes, and even how "fast" these things could be when running age appropriate software.

      Then a year after my daughter was born, we bought our first home. Moving out of our rented home, I decided that anything that couldn't run the latest version of OS X had to go to the trash. With life changes that come with more responsibility at work, the aforementioned kid, getting old and not being able to stay up all night jacking with computer crap, I knew I didn't need all that old junk. It was hard to part with it, but I feel much better now, leaving it in the past.

      The real test was when I ran across a pretty nice Apple //c at the local Salvation Army for $5, complete with the //c green monitor. That was my first computer. Oh, the memories! Wouldn't I just love to get that beast up and running? I resisted, went home and loaded up Lemonade Stand in Basilisk and realized I'd never use the damn thing, and it wasn't even worth $5 to me, considering the amount of time I'd spend on getting it up and running and maintaining it. Unlike the olden days, my time is worth something these days, and downtime is even more valuable to me.

      To sum up, let it go. Throw the crap out with next week's trash pickup. (Err, I mean recycle it all responsibly.) If you ever do get the urge to play some of those old games, DOSBox will always be there, along with torrents or other repositories full of disk images of all that old software.

      --
      :q!
    5. Re:Good riddance by mug+funky · · Score: 2

      interesting point.

      when wifey hints that my LPs are taking up too much space, or that there's cables everywhere, i simply say "i'll clean up the cables when i'm done with them, but the LPs are fucking staying".

      if you can't assert yourself to someone who is supposedly your equal (ie other half), then it's just not going to work.

      though with a kid coming in 2-3 weeks, i doubt i'll have an awful lot of time to bugger around with my hobby stuff, at least for a few months.

    6. Re:Good riddance by Totenglocke · · Score: 2

      The moral of the story that I got out of your post was "Don't have kids" or possibly "Don't get married" because it sucks all the fun out of life.

      --
      "The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants." ~Thomas Jefferson
    7. Re:Good riddance by leamanc · · Score: 2

      The moral of the story that I got out of your post was "Don't have kids" or possibly "Don't get married" because it sucks all the fun out of life.

      Hmmm....well, possibly. Don't forget "job" turning into "career" (you know, where you can afford to have a kid, take a vacation every once in a while and sock some money back) is also a big factor that limits the time I can spend on computer hobby activities. Perhaps the fact that I am an IT manager means that I'd just like to use my computers in the evenings, and not fix up old classics.

      But what I was more going for was maturity is the real reason you drop unfettered nostalgia for your computing past. I had my teens and 20s. They were great...I worked hard and played hard and I wouldn't trade them for anything. My daughter was born when I was 31. But I am far more content now and really have no desire to still be the Mac geek who stayed up till 4 am modding a Mac Color Classic so that it could take a 68040 processor and up its screen resolution to 640x480. A solid seven hours of sleep and getting a big old hug from my kiddo when I wake her up for school is immensely more satisfying.

      Maybe I am boring, but marriage didn't suck the joy out of my life. My wife was there for all that Mac hacking, too. If I do happen to break out the tiny Phillips and torx T-8 screwdrivers without her, she gets really, really pissed. The moral there is if you are going to have computers take up a significant portion of your life, choose a life partner who is at the very least OK with that, or at best will be right there with you, hacking away.

      --
      :q!
  4. Neither DOSbox nor a 486 - go Amiga by cpu6502 · · Score: 2, Interesting

    With just a few exceptions, an Atari 800 or Commodore 64 or Amiga emulator is better than any DOS-based games. Better graphics, better sound, and so simple even an idiot could make it work (standard hardware == console level simplicity == plug'n'play). No need to mess with complicated DOS configurations trying to make the carn-sarn-flippy-flam VGA or soundblasthing work. (Grrrr.)

    For the era 1985 to 95, almost every game looks and plays better Via the Amiga version. Now when you're talking Pentium-level games, which are post 1995, those will eclipse what an Amiga could do. But still - no need for DOSbox. Windows XP will do the trick, or Windows98 if XP fails for some reason.

    --
    My AC stalker: " I personally agree with your posts most of the time, but that won't keep me from modding you troll"
  5. DosBox should do it for personal gaming. by Sinthet · · Score: 5, Insightful

    Lacking any modern computer hardware until around 2007 or so, I feel I can relate to you, despite being one of the younger folks here. I grew up slaughtering hordes of Nazis in Wolf3D during the PS2 era, along with saving chicks with Duke Nukem, then getting my nerd on with Shadowland (I think thats what it was called :/). Anyway, I have a strong nostalgic love for these old DOS games, and I've yet to run into a problem playing them on DOSbox (Under Linux, just fyi). However, instead of tossing all that retro goodness, I'd put it up on ebay. You'd make a buck or two, and some other nostalgic fanboy will wet himself in joy. Everyone wins!

  6. Serial interfacing by Anonymous Coward · · Score: 2, Interesting

    Ever try to program a Motorola commercial radio from the 80's? It turns out that you need some hardware from the era to make it work. DOSBox runs the program just fine, but it can't control the serial ports correctly, so the program cannot read or write radio configruations.

  7. On getting rid of old hardware... by The+Archon+V2.0 · · Score: 3, Interesting

    For every piece of old hardware I have, I can usually find a home for it. I have people asking me for leads on stuff like AT power supplies and boards that aren't all PCI/PCI-E.

    So before you chuck that old DOS box away, make sure there's not some other collector who would like it. :)

    (Hugs MSD SD2.)

    1. Re:On getting rid of old hardware... by VortexCortex · · Score: 4, Interesting

      Mod parent up! When it comes to recreating the sound-effects and music of the classics, nothing beats the original hardware... Chiptune is officially a thing now.

  8. Chuck it. by timeOday · · Score: 3, Interesting
    Obviously this is all just IMHO, but I tossed out most of my old stuff a while ago and have rarely missed any of it. It reduces the temptation to waste an evening (or more) trying to scrounge together a frankenstein system, reading old newsgroups to figure out how to resolve IRQ conflicts and write an autoexec.bat, and all that evil stuff. I have purchased a few old nostalgia items from ebay (non-computer stuff) and I find having it again is never as good as reminiscing about it.

    If nothing else, figure the space in your home is $150-$200 / sf. Keeping junk isn't free, it costs money. Declutter and you may feel less desire for a larger place.

  9. I bit the bullet... by pongo000 · · Score: 4, Insightful

    ...and destroyed about 1000 floppy disks chock full of games, shareware, and what not. My grand plans were always to "show my kids" what I grew up with...but now they're almost out of school, and aren't the least bit interested.

    So practicality trumped nostalgia. The disks, machines, drives, everything are gone forever. I still have pangs of guilt over the decision, but also remind myself that realistically I would never run anything under DOS again.

    1. Re:I bit the bullet... by VocationalZero · · Score: 2

      ...and destroyed about 1000 floppy disks chock full of games, shareware, and what not.

      I cried a little

    2. Re:I bit the bullet... by pongo000 · · Score: 4, Insightful

      ...and destroyed about 1000 floppy disks chock full of games, shareware, and what not.

      I cried a little

      So did I, believe me...

    3. Re:I bit the bullet... by PitaBred · · Score: 2

      No interest in making money and selling them to someone that actually would want them?

    4. Re:I bit the bullet... by Hatta · · Score: 2

      Kids aren't interested unless you're interested. Don't go "hey kids look at this old crap!", that won't work. Play with it while they're around and they will be interested in what you're doing. It's monkey see, monkey do with kids.

      --
      Give me Classic Slashdot or give me death!
  10. Zelda: Ocarina of Time by MrTrick · · Score: 2

    Plays well enough with an Xbox360 controller. (In fact, they are fantastic for most console emulation) Don't even bother trying to play N64 games with a Playstation controller, blecch.

    1. Re:Zelda: Ocarina of Time by Samantha+Wright · · Score: 3, Insightful

      Some people just aren't comfortable with controllers that aren't XBOX HUGE. And y'gotta admit, the N64 controller was pretty big. I could see how a 360 gamer would feel, y'know, less alienated than usual on an N64.

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  11. Try FreeDos with VirtualBox by Billly+Gates · · Score: 5, Informative

    Get a copy of VirtualBox for Linux or Windows and fire up the ISO download. I doubt FreeDOS can read modern SATA drives so running it through a virtual machine is ideal. FreeDOS is the most MS DOS compatible OS. Not to mention with virtualbox you can share files with a shared folder. I do not know if the guestadditions for Dos are available as I use Linux under it but it is worth a shot for sure.

    What is great about FreeDOS is it comes with a TCP/IP stack and gnu tools like gcc and a nice editor so you can at least transfer files and old files from the internet to it to have the old experience back if you want to run DOOM shareware for example

  12. Re:GOG by Inner_Child · · Score: 3, Informative

    I think for oldschool PC gaming, emulation isn't quite there like it is for oldschool consoles. Yet. The amazing combinations of HIMEM.SYS, EMM386, and SMARTDRV (and clones, HyperDisk was truly amazing) that each developer chose to run with makes for lots of variables that emulation seems ill-equipped to deal with.

    Actually, this makes DOSBox a much better solution, especially with a frontend (like D-Fend Reloaded or DBGL [warning, it's Java-based]) that maintains separate configuration files for each game. It also handles booters (those the-game-is-its-own-OS titles) quite well. Now you only have to configure the funky memory setups once for each game, and you're set.

    --
    Today is red jello day - all workers must eat all of their red jello. Failure to comply will result in five demerits.
  13. This might be useful by hduff · · Score: 3, Informative

    Alternate DOS extenders.
    http://maximumhoyt.blogspot.com/2008/12/dos4gwexe-version-201a-and-alternative.html

    The most useful appears to be DOS/32A, a drop-in replacement for DOS4GW.EXE .
    http://dos32a.narechk.net/index_en.html

    --
    "I believe in Karma. That means I can do bad things to people all day long and I assume they deserve it." : Dogbert
  14. Only one thing you need a physical box for... by damn_registrars · · Score: 3, Insightful

    All the games you have on 5.25" floppy. Once you get all that from floppy to images, you can junk the box and bask in the glory of having one less physical system. As an added bonus, your spouse will thank you - or if you're still single, you'll have a slightly better chance of finding one.

    --
    Damn_registrars has no butt-hole. Damn_registrars has no use for a butt-hole.
  15. Offer it on old dos game forums for the postage. by mrmeval · · Score: 2

    I've used Dosbox to emulate all of my companies legacy dos stuff we have to use. It works find with XP.

    Every game I've tried it with works though most of mine are text based Remember T-Zero? http://www.sparkynet.com/spag/t.html#tzero all of Infocom's games.

    I still play the ones I've not solved yet, I have all my notes.

    --
    I'd go on a Vegan diet but the delivery time from Vega is too long. --brownkitty
  16. DOSBox FTW by atomicbutterfly · · Score: 3, Informative

    Here are the reasons:

    (1) As of the latest version (0.74) it runs every DOS game I've thrown at it.
    (2) If a game needs more resources, simply increase the clock rate within DOSBox using a few hotkeys. Better yet, give the game a custom .conf file specifying the clock rate you want (max CPU if required), resolution, audio quality, and any other peripherals it could use.
    (3) Sound support NEVER fails. It supports all typical DOS audio interfaces out of the box.
    (4) Why boot another computer for DOS games when you can simply launch from your main rig?
    (5) DOSBox is open source. It works on nearly everything.

    1. Re:DOSBox FTW by DNS-and-BIND · · Score: 4, Insightful
      which forces you to use a cracked copy (for some retrogamers this is a big deal as they want everything unmolested).

      You know, back then, we always used the cracked version, even for software we owned. I don't know what could be more authentic. Dumb hipsters.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    2. Re:DOSBox FTW by damiangerous · · Score: 2

      StarFlight actually works perfectly in CGA mode with DOSBox 0.74. There are still a handful of games that do not work, but that number seems to decrease with every release.

    3. Re:DOSBox FTW by Nimey · · Score: 3, Informative

      Use the DBGL front-end. It's Java and hence cross-platform, and it's got some canned system profiles you can associate with your games, for example 486DX2-66 or 16 MHz 386.

      --
      Hail Eris, full of mischief...

      E pluribus sanguinem
  17. Re:VMWare? by black3d · · Score: 5, Informative

    While you can certainly install DOS on most VMs, the problem isn't the CPU being emulated, but other hardware. And even the CPU isn't being directly emulated in most VMs like VMware or VirtualBox, but rather utilising virtualization tech on your main CPU, but I digress - back to the hardware issues.

    Sound in most VMs, for instance, is a virtualized AC97 or similar codec. Sure, there are some 16-bit and virtualized sound drivers (in VMware) for instance if you want to install original OS/2, but predominantly what we're talking about is a software-driven sound card as opposed to an entirely hardware based controller. If you've been around a while, you'll recall the difference between real modems and "win modems". One can be polled directly via its own interrupt/DMA (the real one), and the all the others sit on IRQ11 (not necessarily true, example) and wait for a higher-level driver to sort out what goes where.

    DOS relied on "real" sound cards with addressable interrupts, etc, which simply aren't emulated in almost all VMs. DosBox does, emulating almost every function of the actual chipsets of SoundBlasters/Adlib/GUS/etc. It's exactly what real emulation is, as opposed to virtualization. VMware, VirtualPC, VirtualBox etc, provide virtualization. DosBox provides emulation. And there is a difference. :)

    Likewise, CGA, EGA, VGA cards. Most virtualizers provide a VESA compatiable SVGA driver(think, an S3 Virge, or similar). DosBox actually emulates the individual functions and quirks of the different graphics adapter chipsets. CGA for instance, isn't just "4 color graphics, 16 color text". It's a very broad specification, and DosBox has to emulate how each aspect of that specification can be used, and abused, to provide the various graphical effects that programmers coaxed out of the original systems, and graphical trickery.

    And most virtual machines don't support protected run-time mode, which you can look up. :) I've written enough already!

    So yeah - you can run DOS on a VM. You just can't play many games on it. :)

    --
    "The true measure of a person is how they act when they know they won't get caught." - DSRilk
  18. KEEP IT! by alanshot · · Score: 2, Interesting

    I didnt think it mattered, until one day many years ago I uncovered my copy of Mechwarrior.

    Not thinking anything of this then 10yo+ game, I dragged it out and threw it onto my thoroughly modern rig. Bear in mid this was last played on a 486, MAYBE an Pentium, and I was now throwing it onto a 2ghz Athlon XP rig (early P4 equivalent). I installed it and it seemed to go ok. I started the game, great!

    lets stop and think back, shall we? Now if you recall playing, you would start the game, and there would be no enemies in sight. you would then start trudging across the field at a pace of about two steps per second. in about 90 seconds to 2 minutes, the first opponent would appear. after several minutes of guns and rockets, one of you would die. Not this time.

    I started walking the mech, and it was more like a sprint... the mech was virtually RUNNING at about 4-6 steps per second and its barely controllable. next thing I know the other mechs are on top of me, and before I can get more than one shot off, a hail of rockets and guns and I am dead. The game literally lasted 20 seconds.

    Apparently that particular title relied on the clock speed of the processor. the faster the processor, the faster the game would play. By attempting to run that game on a modern platform, I realized that there was no substitute for the original platform.

    So yes, hang onto the hardware if you really want to game and get the original results.

    1. Re:KEEP IT! by slimjim8094 · · Score: 2

      So use Dosbox, which limits the processor to a selectable speed, for exactly this reason. This is exactly what he's asking.

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    2. Re:KEEP IT! by laederkeps · · Score: 2

      I recall our old 486DX 66 MHz (at least I think that was what it was) had a little 2x7 segment display and a button labelled "TURBO" on the front panel. Hitting the button would switch the machine between 33 and 66 MHz. That feature was probably for games like the one you describe.

  19. Re:Roland MT-32 by JBMcB · · Score: 2, Interesting

    There used to be a software implementation of the MT-32 that you could use as a plug-in for DOSBox, but Roland sued them to stop, since it used MT-32 samples. 'Cause, you know, Roland really cashes in on those late 80's consumer-grade sample sets.

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    My Other Computer Is A Data General Nova III.
  20. Terrible way to deliver such shocking news! by syousef · · Score: 5, Funny

    All that stuff about emulators is just a smokescreen. You're not playing your legacy DOS stuff now, you won't tomorrow, and the day after that you'll be dead.

    My god man, who cares if he gets rid of the stuff if he's only got around 2 days to live!!!???

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    These posts express my own personal views, not those of my employer
  21. How about DOS for enterprise apps? by bertok · · Score: 4, Interesting

    I've got a similar issue, but with old business applications instead of games.

    I have clients that are still running 16-bit DOS applications for thousands of users (don't ask), and are having real trouble with them because support for 32-bit operating systems is slowly but surely disappearing. For example, terminal services requires "Server" editions of Windows, but since 2008 R2, there are no more 32-bit editions, and the 64-bit editions cannot run 16-bit applications at all.

    I've been looking for a DOS emulator for 64-bit Windows with decent performance that has the same (or similar) features as the emulation in 32-bit Windows editions, such as cut & paste, transparent access drives, etc...

    The DOS emulators designed for games behave more like VMware: they emulate a physical machine with peripherals. What I'm looking for is more of a backwards-compatibility layer like the NTVDM system that can be found in 32-bit editions of Windows, but capable of running under a 64-bit OS.

    Anyone here know of something like that?

    1. Re:How about DOS for enterprise apps? by Retron · · Score: 2

      What was found, was that NTVDM included the processor functionality from Insignia's SoftPC.

      It still does, even on Intel systems. If you dig inside NTVDM.EXE, even under Windows 8, you'll see the following string:

      "SoftPC-AT Version 3 (C) Insignia Solutions Inc. 1987-1992"

      It emulates a BIOS amongst other things. There's no reason why MS couldn't have produced a more up-to-date, just-as-transparent layer for x64, but that would have involved writing something new rather than tweaking code they bought 20 years ago when NT 3.1 was under development. I guess they decided the effort simply wasn't worth it, and being that they now had Virtual PC they decided it'd be better to just boot an entire copy of Windows rather than just virtualise MS-DOS 5 (as NTVDM does).

  22. Re:For DOS games, sure. by dark_requiem · · Score: 4, Interesting

    PS2 emulation is coming right along. PCSX2 just released a new stable build at the beginning of the month, and something like 65% of games are supposed to be playable. Yes, it takes a bit beefier machine to run than an old N64 emulator, but it works well on any recent machine with a decent GPU. My Core2Duo E8400 with an 8800GTX has no problems, and it's hardly cutting edge these days.

  23. Re:Emulation and Virtualization don't cut it ... by damiangerous · · Score: 2

    Pirates! Gold and Secret Weapons of the Luftwaffe are both fully supported and working with DOSBox.

  24. Re:Roland MT-32 by cf18 · · Score: 3, Informative

    DOSbox provide MT-32 emulation, basically just pass the midi to the host OS midi driver.

  25. Re:For DOS games, sure. by Moryath · · Score: 3, Insightful

    No, they were just using more complicated processors because more complicated processors were available. Follow the generic rise: 4bit->8bit->16bit->32bit->64bit->DesktopCPU + DesktopGPU. That final step's the real killer.

    Well... except for the PS3. Thing's so fucking terrible to code for that IBM even gave up on their promised "octopiler" compiler for it and said they could never ever get the damn thing to work. It's one big thing holding the PS3 back from "theoretical power" as opposed to what can actually be done with it - the other thing being that it's permanently stuck in 3rd place for this generation, and nobody in their right mind except for Sony's in-house developers will do anything as mind-blowingly stupid as to fail to code and release Xbox360 port that looks and plays just as good. Most of the time, the Xbox360 is the primary code and the PS3 version is the port.

  26. Re:For DOS games, sure. by CronoCloud · · Score: 3, Informative

    It's not the instruction set, the PS2 has a wacky MIPS variant CPU....with 128 bit registers...and two powerful-for-time programmable vector units. And a very fast 2560 bit memory bus in there, and fast RDRAM. And a built in MPEG2 decoder (which is used for texture decompression for games) The thing's hardware is so complex it's probably very difficult for emulator makers.

  27. Re:For DOS games, sure. by grahamwest · · Score: 4, Interesting

    I don't believe that at all. The PS2 is hard to emulate because it's an exotic design intended for a particular programming style (stream processing) and it took people a long time to understand it. It was also designed to be as powerful as possible for the price, so it sacrifices things like regularity and robustness.

    I used to do the 'intro to PS2' chat for new programmers and I would draw the architecture diagram on the whiteboard, starting with the main bus and CPU. They'd be fine at first and as more and more boxes appeared they would get steadily more apprehensive. There are 7 big black books which describe the PS2 hardware, sometimes quite tersely, and there is much, much more you need to know to get the best out of it. I am not surprised at all that emulation has proven a tall order.

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    Graham
  28. Re:Roland MT-32 by greyelf23 · · Score: 2

    Recreating original sound is extremely difficult and has a more limited interest in providing equivalent emulation.

    There is in fact a project in active development that tries to emulate the MT-32 in software (usable on Linux/Windows): munt

    You still need the original MT-32 ROMs though, which might be under copyright in your country. You can extract them from a MT-32 unit or from google. :)

    In my opinion, it sounds pretty good, although its been a while that I've played around with it and I've never actually heard a real MT-32... To anybody who owns one: Does it still work through e.g. DOSBox or are there occasional hiccups with games? Is there other fun stuff you can do with such a unit besides games (e.g. interesting MIDIs)?

  29. Re:GOG by TheRaven64 · · Score: 2
    I disagree. With DOSBox, I get four big advantages over real hardware that immediately come to mind:
    • hq3x scaling. Looks so much nicer than the original - it spots gradients and turns them into high colour gradients instead of 256 colour blocky ones, and it also works nicely with sharp lines. I just finished re-playing the Space Quest games, and the later ones look really nice in this mode.
    • Sound emulation. DOSBox can emulate much better hardware than I ever owned. Those beepy PC speaker sounds that I remember are replaced by an emulated MIDI device.
    • I can play multiplayer DOS games over a network. Remember playing games over a serial cable? Now you can play those same games via WiFi.
    • Support for USB gaming controllers. I can plug in a nice USB joypad or joystick, and DOSBox will use it to emulate an old analogue device.
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