[Info-vax] Intel proposal to simplify x86-64

[Simon Clubley]

On 2023-06-12, Arne Vajhøj <arne at vajhoej.dk> wrote:
> On 6/12/2023 9:00 PM, John Dallman wrote:
>> In article <u689pl$38idu$1 at dont-email.me>, arne at vajhoej.dk (Arne Vajhøj)
>> wrote:
>>> Does Dibol compile to native? If yes then they would need
>>> to integrate with LLVM backend.
>> 
>> Looks like a bytecode. So the run-time system for that would need to be
>> re-built, along with the compiler.
>
> source code to byte code compiler + byte code interpreter
>
> should be easier to port than:
>
> source code to native code compiler
>

It's bytecode (unless it has changed recently), but the build sequence
on Alpha (the last architecture I used Synergex Dibol on) resulted in
normal VMS executables created using the VMS linker. It looked like the
bytecode was embedded within the executable and the executable was linked
against the Dibol RTL.

You can also call directly (for example) C subroutines and VMS system
services from within your Dibol code (I used to write some low-level
stuff in C that was too slow when implemented directly in Dibol), so
the executables can be regarded as some hybrid of native VMS code and
Dibol bytecode.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.