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ARM version of MSDOS (Announce)

posted by kerravon, Ligao, Free World North, 20.01.2024, 10:15

> Hello kerravon,
>
> > > with the absolute minor difference that Unix is multitasking, and
> MSODS
> > > is
> > > definitively not.
> > The discussion under question is porting MSDOS
> > and/or applications, not porting Unix.
> > So MSDOS support can be provided to the Unix
> > system by *doing nothing at all*.
>
> Indeed, indeed... the problem of getting MS-DOS programs to run on a
> multi-tasking system is so trivial, that Raymond Chen wrote an entire book
> chapter about it
> (https://news.ycombinator.com/item?id=9070696).
Well - now we're onto a different topic of great
interest to me - why?

If they were written in 8086 assembler then of
course they're not expected to port to a Linux 68000
machine.

I'm talking about source code portability here.

Do you agree that if the MSDOS programs were
written conforming to C90 that they would port?

Then the question is - why weren't they written
in C90?

And the answer to that question would then open
up the possibility of finding out if there was
a way to overcome that (presumed) issue without
breaking portability.

But it starts with programs that work on MSDOS.
Not programs that work on Linux. The goal is
to get the MSDOS programs across - with a
recompile. And if that is not possible - why not?

BFN. Paul.

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