DOS ain't dead

UX with nVidia GTX 970 (Users)

posted by Zyzzle, 30.07.2022, 09:36

> AFAIK, enabling the write-combining cache needs to be done with PAT now.
> This could probably work if managed by an appropriately modified VM86
> monitor, but only for real-mode games. Most DOS-extended games run without
> paging, which would also prevent PAT from being used. At least that’s how
> I imagine it would work; I’ve never looked at PAE in more detail.

Thank you for this information. I had never imagined that PAT was necessary for write-cache combining on the most modern systems. This is a better answer than I've found elsewhere or in trying to explain the freeze of all > 5th Gen Intel core systems, when using RayeR's utility, or another MTRR-enabler. This appears to be a yet anoth castration / "walled garden" limitation of modern systems. The most modern 12th Gen doesn't even have VESA modes, int13, or DOS text-mode 9x16 fonts, so DOS can't even be booted from USB -- also from lack of CSM legacy BIOS code. Even if non-UEFI code existed in BIOS, DOS games and applications wouldn't be usable due to lack of these fundamental low-resolution VGA modes complete deletion of a legacy 16-bit video BIOS firmware.

Complete thread:

• UX with nVidia GTX 970 - RayeR, 27.07.2022, 16:31 (Users)
  • UX with nVidia GTX 970 - Oso2k, 28.07.2022, 04:49
  • UX with nVidia GTX 970 - Zyzzle, 30.07.2022, 02:34
    • UX with nVidia GTX 970 - Ringding, 30.07.2022, 08:50
      • UX with nVidia GTX 970 - Zyzzle, 30.07.2022, 09:36
        • UX with nVidia GTX 970 - Japheth, 31.07.2022, 02:34
          • UX with nVidia GTX 970 - Zyzzle, 03.08.2022, 06:31
            • UX with nVidia GTX 970 - RayeR, 16.08.2022, 19:20
              • UX with nVidia GTX 970 - Zyzzle, 17.08.2022, 02:46
                • UX with nVidia GTX 970 - RayeR, 17.08.2022, 15:38
                  • UX with nVidia GTX 970 - Zyzzle, 20.08.2022, 07:44
                    • UX with nVidia GTX 970 - marcov, 20.08.2022, 14:01