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Necromancer's Dos Navigator (Announce)

posted by RayeR(R) Homepage, CZ, 28.09.2018, 21:34

> Also, the 64-bit version won't work with any of my DOS setups (I use JEMM
> on all of them) -- I get an error message: D3X: error 0xFB: V86 mode
> So, the 64-bit versions apparently won't work when a 32-bit EMM is already
> installed since they put the CPU into V86/protected mode.

Yes, I got the same. I tested WIN32, DOS32 and DOS64 version on Core i7-2600K and all are able to run. Except as you noticed the 64b version cannot run under V86 mode that is in my case a big disadvantage why not to use it. But it seems to not be a bug but a limitation of D3X extender. Any of other DOS64 programs don't run under V86 too but it runs under plain DOS or XMS+UMBPCI. As we know from 64-bit OSes it problematic/impossible a coexistence of V86 and 64-bit long mode. It may be possible to completly save a v86 state before switching to long mode and then restore it after switching back but there wouldn't be v86 functions while run in long mode...

DOS gives me freedom to unlimited HW access.


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