Re: Fun: Object Pascal on VMS

On 9/3/24 2:59 PM, Arne Vajhøj wrote:

On 9/2/2024 7:51 PM, Lawrence D'Oliveiro wrote:

On Mon, 2 Sep 2024 11:35:16 -0400, Arne Vajhøj wrote:

On PC:
>
C:\Work\VMS\objectpascal>ppcjvm demo.pas
...
>
On VMS:
>
$ java -cp demo.jar:fpcjvm.jar "demo"
F1=0,F2=
F1=123,F2=ABC

>
VMS can no longer self-host its own development stack any more.

It depends on what is meant by "its own development stack." It certainly
does self-host the tools used to build the OS itself.

There are lots of compilers and interpreters available on VMS.
 There are also a bunch that are not available on VMS. That
bunch include FPC.
 If someone wanted FPC to run on VMS, then they could
port it. It is open source.
 FPC has really nothing to do with VMS, but compiling to
Java byte code is a very broad targeting cross compiler.
Which I took advantage of.

And I think everyone who wasn't trolling recognized that.  The JVM
brings a big party with it wherever it goes.  .NET would bring a
slightly smaller but still nice-to-have party.  With LLVM as a
foundation for the current crop of VMS compilers, many things are
possible (but nothing is easy).
Has anyone actually tried porting FPC to VMS?  It looks at first glance
like a lot of it is written in Pascal, so I assume it would need to be
cross-compiled initially.