DOS ain't dead

UX with nVidia GTX 970 (Users)

posted by Ringding, 30.07.2022, 08:50

> 5th Gen core i3/i5/i7. (Broadwell). 6th Gen-up = very slow, unaccelerated
> VESA graphics in DOS... no MTRRs are enabled. I've never found a workaround
> or a hack to prevent this bug / crippling / devolution.

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.

Complete thread:

• UX with nVidia GTX 970 - RayeR, 27.07.2022, 16:31
  • 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