Porting to i686-msdosdjgpp

[Thomas Stüfe]

On Sun, Nov 14, 2021 at 10:52 PM David Holmes <david.holmes at oracle.com>
wrote:

> Hi,
>
> On 14/11/2021 9:09 pm, gnufan42 wrote:
> > Hi,
> >       I'm trying to port openjdk 8 to DOS. I use cygwin as compilation
> environment and use djgpp-gcc for the compiler. I have just got started and
> now I'm recompiling some dependency libraries. Can anybody give me some
> suggestion about what I'm trying to do?
>
> I'd say it is technically impossible to port OpenJDK to DOS as you do
> not have any of the necessary operating system support for threads,
> synchronization, virtual memory, ....
>
> It might be possible to write a Java bytecode interpreter that runs on
> DOS, but there would be a lot of missing functionality IMO.
>
> Cheers,
> David
>
>
You may have more luck with a JVM targetted to embedded, like the CVM
(JavaME). But I believe that would not be a straightforward port either but
require substantial changes. If it can be done at all.

Cheers, Thomas



> > Thanks,
> > Gnufan
> >
>
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