DOS ain't dead - With DPMI into protect mode and back

With DPMI into protect mode and back | physical memory (Developers)

posted by DOS386, 06.09.2010, 20:08

> Using RM callbacks (which I did use too, but that's not
> the point) doesn't properly remove the "DPMI process"
> or "context", so you're not really back.

There is so-called "raw" switch ... (my "raw" is DEC CR0 ...)

> I would think Firefox is not a DOS or DPMI program,
> so that this would not be the particular issue
> that we talked about.

Right, but it may be useful to execute external dangerous code in a separate process on any OS :-)

> and going into PM on your own works with an EMM, XMM or DPMI host installed.

Right (not inside NTVDM of course, but hey, isn't this maybe deliberate ??? :clap: ).

BTW, how do you hog physical memory in DPMI ??? :hungry:

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Complete thread:

With DPMI into protect mode and back - Laaca, 13.08.2010, 10:36 (Developers)
- With DPMI into protect mode and back - EDIT: example - ecm, 13.08.2010, 14:30
  - With DPMI into protect mode and back - EDIT: example - DOS386, 26.08.2010, 09:18
    - With DPMI into protect mode and back - EDIT: example - ecm, 26.08.2010, 14:35
      - With DPMI into protect mode and back - EDIT: example - DOS386, 27.08.2010, 03:33
        With DPMI into protect mode and back - EDIT: example - ecm, 30.08.2010, 21:51
        With DPMI into protect mode and back | physical memory - DOS386, 06.09.2010, 20:08
        With DPMI into protect mode and back | physical memory - ecm, 07.09.2010, 17:04
        With DPMI into protect mode and back | physical memory - DOS386, 08.09.2010, 00:51
        With DPMI into protect mode and back | physical memory - ecm, 08.09.2010, 20:53
        With DPMI into protect mode and back | physical memory - DOS386, 11.09.2010, 01:02
        With DPMI into protect mode and back | physical memory - ecm, 11.09.2010, 01:25
- With DPMI into protect mode and back - Japheth, 18.08.2010, 08:04
  - With DPMI into protect mode and back - Japheth, 18.10.2010, 11:17
    - With DPMI into protect mode and back - Rugxulo, 18.10.2010, 23:07
      - With DPMI into protect mode and back - Japheth, 19.10.2010, 09:58
        With DPMI into protect mode and back - Rugxulo, 19.10.2010, 10:09
        With DPMI into protect mode and back - Japheth, 19.10.2010, 10:20
        Possible CWSDPMI design flaw - Japheth, 19.10.2010, 17:59