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32-bit MSDOS (Announce)

posted by kerravon E-mail, Ligao, Free World North, 27.06.2021, 13:46

> > My vision of what MSDOS should have become in the late 1980s is here:
> >
> > http://pdos.org
>
> what does it better than MSDOS?
It is 32-bit instead of 16-bit if you wish
to have that.

> what sort of programs does it run?
>
> does it run Norton Commander?
>
> Does it support MS Lanmanager?
It doesn't support anything unless you
recompile as 32-bit.

But (some) INT 21H functions are available
(in clean 32-bit mode, flat address space,
supervisor mode, no memory protection).

One executable format used is a.out (which
EMX 0.9d used, not sure about other DOS
extenders). But segment registers are
never used.

> can it read DVD/CD?
No. Only hard disks and floppy disks.

> as you mention MSVCRT.DLL: does it load PE executables?
Correct. That is the other executable format
supported. So if you write to the lowest
common denominator, you can have a Win32
executable that runs on PDOS/386 and also
Freedos+HX and also every version of Windows
since Win95 (not sure if it works on Win32s
systems prior to Win95) and also Linux/Wine
(or anything else with Wine).

Note that there is also a new GCC executable
for this environment just released an hour ago.

BFN. Paul.

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