DOS ain't dead

MS the "only hope"? (Vista DPMI bug: 32 MB max.) (DOSX)

posted by Rugxulo , Usono, 04.01.2008, 22:31

> > And how about missing NTVDM on x64 systems? And successor of Vista? They
> > surely kick out support of legacy things...
>
> Sorry, but we are talking about the crappy DPMI implementation in Vista's
> NTVDM here, not about the future of "everything".

It's actually an accidental Win2k3 "security" bug that at least one person says will be fixed in SP1:

> http://www.trnicely.net/misc/vista.html
>
> On 10/11 April 2007, I received an e-mail purporting to be from
> an employee of Microsoft, or one of its contractors or subcontractors.
> Following is the crux of the e-mail.
>
> > ...I work for 16 side of OS (NTVDM). First of all I would like to thank you
> > for pointing out a bug in 16 bit Memory allocation. To give some
> > background, this was not a regression. This was done to restrict some
> > apps from gulping huge memory in WIN2K3 timeframe, but nobody
> > objected then so it continued.
> >
> > Now that people are asking for this, We are planning to fix this in SP1 of
> > VISTA.
> >
> > Your inputs are very valuable to us, Help us to help you.
> >
> > Thanks,
> >
> > Subhash (Badri)

And BTW, there's no V86 mode under 64-bit "long mode" (non-emulation mode), so you have to emulate the 16-bit subsystem (like DOSEMU supposedly does).

---
Know your limits.h

Complete thread:

• SSE in DOS under JEMM386 ?? - Rugxulo, 03.01.2008, 06:54 (DOSX)
  • SSE in DOS under JEMM386 ?? - DOS386, 03.01.2008, 08:12
    • SSE in DOS under JEMM386 ?? - Rugxulo, 04.01.2008, 01:03
  • SSE in DOS under JEMM386 ?? - Japheth, 03.01.2008, 09:19
    • SSE in DOS under JEMM386 ?? - Rugxulo, 04.01.2008, 01:05
      • SSE in DOS under JEMM386 ?? - Japheth, 04.01.2008, 09:44
        • SSE in HDPMI / bug (c/c) - DOS386, 04.01.2008, 10:20
          • SSE in HDPMI / bug (c/c) - Japheth, 04.01.2008, 11:12
            • SSE in HDPMI / bug (c/c) - Rugxulo, 04.01.2008, 22:39
        • SSE in DOS under JEMM386 ?? - Rugxulo, 07.01.2008, 14:49
          • SSE in DOS under JEMM386 ?? - Japheth, 07.01.2008, 17:42
            • SSE in DOS under JEMM386 ?? - Rugxulo, 09.01.2008, 01:23
              • SSE in DOS under JEMM386 ?? - Rugxulo, 09.01.2008, 10:46
                • SSE in DOS -> Illegal Instruction Exception - DOS386, 10.01.2008, 01:22
                  • SSE in DOS -> Illegal Instruction Exception - Steve, 10.01.2008, 08:46
                  • SSE in DOS -> alignment issues - Rugxulo, 10.01.2008, 22:21
                • SSE in DOS under JEMM386 ?? - Japheth, 10.01.2008, 17:19
  • SSE in pure DOS - Rugxulo, 04.01.2008, 06:09
    • Secure Socket Extremism in DOS | You maybe have a Page Foul - DOS386, 04.01.2008, 07:52
      • SSE in DOS | Page Fault | JEMM386 / HDPMI32 - Rugxulo, 04.01.2008, 22:47
        • SSE in DOS | Page Fault <- YES, your bug | HDPMI32 - DOS386, 05.01.2008, 02:19
          • SSE2 in DOS | PAQ8o8z (Jan. 6) - Rugxulo, 06.01.2008, 05:09
            • SSE2 in DOS | PAQ8o8z (Jan. 6) - DOS386, 08.01.2008, 02:00
  • MS the "only hope"? - Japheth, 04.01.2008, 12:11
    • MS the "only hope"? - RayeR, 04.01.2008, 18:09
      • MS the "only hope"? - Japheth, 04.01.2008, 19:16
        • MS the "only hope"? - RayeR, 04.01.2008, 22:17
        • MS the "only hope"? (Vista DPMI bug: 32 MB max.) - Rugxulo, 04.01.2008, 22:31
          • MS the "only hope" ? NOT for me !!! - DOS386, 05.01.2008, 02:22
            • MS the "only hope" ? NOT for me !!! - RayeR, 05.01.2008, 18:58
              • MS the "only hope" ? NOT for me !!! Multiboot - DOS386, 08.01.2008, 01:47
                • NTVDM forever! - Japheth, 08.01.2008, 09:02
                • MS the "only hope" ? NOT for me !!! Multiboot - Steve, 08.01.2008, 13:54
                • MS the "only hope" ? NOT for me !!! Multiboot - Rugxulo, 09.01.2008, 01:19
                • MS the "only hope" ? NOT for me !!! Multiboot - RayeR, 14.01.2008, 21:34
          • A TSR worth a try in Vista - Japheth, 05.01.2008, 11:04
            • A TSR worth a try in Vista - Rugxulo, 05.01.2008, 21:08
              • A TSR worth a try in Vista - Khusraw, 07.01.2008, 11:06
                • A TSR worth a try in Vista - Rugxulo, 07.01.2008, 14:44
                • A TSR worth a try in Vista - Japheth, 07.01.2008, 17:34
                • A TSR worth a try in Vista - Rugxulo, 09.01.2008, 01:09