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

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

posted by DOS386, 08.09.2010, 00:51

> Yeah, that's what I meant.

Right: no NTVDM support. :-)

> BTW, how do you hog ~~allocate or map~~ physical memory in DPMI??????
> Maybe Int31.0508 (DPMI 1.0)? Otherwise, Int31.08 (DPMI 0.9+). As I
> understand it, you have to allocate an XMS memory block first and lock
> that, then access it with the linear address Int31.0800 returns.

This might work under some special optimal circumstances ... but what do you do if there is no XMS host ? BTW, I had very deliberately asked about physical memory hogging and not mapping, because there is (one of many) critical "design" fault in DPMI: no "official" way to hog physical memory :-(

---
This is a LOGITECH mouse driver, but some software expect here
the following string:*** This is Copyright 1983 Microsoft ***

Post reply

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