DOS ain't dead

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

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Complete thread:

• With DPMI into protect mode and back - Laaca, 13.08.2010, 10:36
  • 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