Re: DOS and Ada (not DDS)

[Rugxulo <rugxulo@gmail.com>]

Hi,

On Jul 8, 4:13 am, Gautier write-only <gautier_niou...@hotmail.com>
wrote:
>
> For Shark8: DJGPP (then GNAT/GCC 4.6.1) and Ada programs compiled with
> DJGPP runs on a DPMI-extended DOS.
> It can be
> * MS-DOS, FreeDOS, NTDVM, DR-DOS without multitasking plus CWSDPMI
> * DR-DOS with multitasking, which provide its own DPMI
>
> If you want an Ada/DJGPP example with keyboard, sound, and video
> drivers written in Ada, you can check this:http://sites.google.com/site/rugxulo/eng3d018.zip

Keep in mind that this is Gautier's 3D Engine, not mine, I just mirror
it for him! It's a really awesome demo.  :-)   And yes, 4.6.1 is
latest GNAT version compiled for DJGPP (2.03p2 and 2.04). There was a
small regression in 4.5.x that made it not run anymore, but apparently
that's fixed now.

So GNAT for DJGPP still works, AFAICT, but it lacks tasking. Note that
I'm not an Ada user (yet?? heheh), so I don't know all the details.
Years and years ago there was FSU Pthreads, e.g. EZ2LOAD, but it had
some quirks and incompatibilities and was apparently never maintained
for DOS since then. I think last public version on whats-his-face's
(Mueller?) site is from 2000 and doesn't even build directly anymore
(last used with DJGPP 2.00 [old], some signal handling conflict or
something dumb with newer DJDEV*). Anyways, another guy, Khusraw,
patched it to compile in newer DJGPPs again, mainly so he could use it
with p7zip 9.13 instead of GNU pth (buggy) + Watt-32 (bloated). I
don't know what it would take to integrate that into GNAT, though, and
I suspect the official GNAT maintainers have no interest in DOS or
DJGPP anymore anyways. But just FYI, that's all I know.

P.S. FreeDOS kernel 2040 was released like two weeks ago, if anybody
is interested. A pre-test of the FD 1.1 distro (.ISO) is available but
still a very rough "work in progress" (esp. installer).