DOS ain't dead

Baremetal OS (Users)

posted by Dex, 14.02.2011, 21:05
(edited by Dex on 14.02.2011, 23:34)

> > For real PC you need Dos32PC.zip which you just need to add the files to
> > any Dos floppy, usb, hdd, you have, but it must be a pure Dos with no
> > Extended memory set.
> > You just run Dos32.exe from the dos prompt.
>
> I tested this version on a real PC.
>
> Test machine: 1024MB, MSDOS 7.1, native ( without Himem ),
> NVIDEA Geforce FX 5200 (128MB)
>
> After DOS32 is launched, some text ( blue on black ) is shown, including a
> copyright msg. Then a prompt appears.
>
> If I press just ENTER, an error msg is displayed, "invalid command" or
> something pretty much similar.
>
> A "dir" does display the content of the current directory, then it
> "freezes".
>
> If I enter "cd", "gui" or "vesa", it just "freezes".
>
> So there is a severe problem.
>
> > ... is unlike a Dos extender in that theres not any setting up of the
> > 32bit environment and you do not need 31h (from a coders point).
>
> Ok, but exactly this IS a DOS extender - providing int 21h in
> protected-mode. If you need to call int 31h, then it's just a DPMI host.

First thanks for testing and the debug report, it still in early stage of dev.

As for DPMI, I would call it a true DPMI, instead of the comity designed one ;)


[EDIT] Found the problem, it now works in all my test PC and emulators, using the same ver, you can get the fix ver here
http://www.dex.asm4u.net/Dos32/
[/EDIT]

Complete thread:

• Baremetal OS - Laaca, 13.02.2011, 19:57 (Users)
  • Baremetal OS - ecm, 13.02.2011, 21:05
  • Baremetal OS - RayeR, 13.02.2011, 22:37
  • Baremetal OS - Dex, 13.02.2011, 23:06
    • Baremetal OS - RayeR, 13.02.2011, 23:12
      • Baremetal OS - Dex, 13.02.2011, 23:46
        • Baremetal OS - Japheth, 14.02.2011, 08:20
        • Baremetal OS - RayeR, 14.02.2011, 14:27
          • Baremetal OS - Dex, 14.02.2011, 18:40
            • Baremetal OS - Japheth, 14.02.2011, 19:37
              • Baremetal OS - Dex, 14.02.2011, 21:05
                • Baremetal OS - RayeR, 19.02.2011, 01:00
  • Baremetal OS - RayeR, 14.02.2011, 13:13
  • Baremetal OS | 64-bit technologies - DOS386, 17.02.2011, 09:54
    • Baremetal OS | 64-bit technologies - Dex, 17.02.2011, 20:05
      • Baremetal OS | 64-bit technologies | xx64 -> 65xx upgrade - DOS386, 18.02.2011, 05:12
        • Baremetal OS | 64-bit technologies | xx64 -> 65xx upgrade - Dex, 18.02.2011, 20:43