DOS ain't dead - 64bit DOS sample

64bit DOS sample (Announce)

posted by RayeR , CZ, 24.07.2009, 14:17

> Switching directly from V86 mode isn't possible, but you can switch to
> ring 0 via VCPI and then switch to long mode.

Is it then possible to switch back to V86? What structures have to be saved before to be able to succesfull restore? I know nothing yeat about long mode, can you reccomend some simple tutrial about long mode? I'm not going to take assembler and making 64bit programs but just for interest...

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DOS gives me freedom to unlimited HW access.

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Complete thread:

64bit DOS sample - Japheth, 24.07.2009, 08:57 (Announce)
- 64bit DOS sample - RayeR, 24.07.2009, 10:25
  - 64bit DOS sample - Japheth, 24.07.2009, 11:57
    - 64bit DOS sample - RayeR, 24.07.2009, 14:17
      - 64bit DOS sample - Japheth, 24.07.2009, 18:53
        64bit DOS sample - RayeR, 25.07.2009, 00:01
        64bit DOS sample - Japheth, 25.07.2009, 05:43
- 64bit DOS sample - marcov, 26.07.2009, 14:03
  - 64bit DOS sample - Japheth, 27.07.2009, 10:49