Hello to all ! I strongly believe there is a place for a strict Ada 83 open source compiler. Of course there is the modern gnat and successive revisions of Ada , but these are very complex systems and many applications do not need object programming or leading edge programming functionnalities. I…

Hello, Your post indicates that what you are most missing at this point is code generation and optimisation. Perhaps you could have an intermediate goal: build a new LSP (language-server-protocol) server for Ada83. This “only” requires lexical, syntactic and semantic analysis, and when integrated…

Hello Jelle and all ! Thank you for your interest. I answer each point. Licencing issues. I am not a specialist, but here are some indications. The DIANA front end I entensively restructured is from the PAL library maintained by R.L.Conn during the 1990ies. link : https://www.semanticscholar.org…

Nice! The PAL library sounds similar to Pascal’s SWAG which I used to study back in the day. Maybe we could simply take a similar approach with regards to licensing if we can’t get a hold of the copyright holders? I think they solved it pretty nicely: swag/LICENSE.md at 58c540d0f96c9e34c70ca8b491027…

[image] jelle: where the copyright now lies I wouldn’t even bother. I’d rewrite a diana implementation from the specs which are available.

[image] jere: On my end, I am just enjoying reading your journey updates. I myself have toyed with the idea, but I definitely lack the skill I don’t necessarily lack the skill as I’ve always been interested in compilers and wanted to tailor my degree to that, but that didn’t turn out too well…

I havn’t understood the interest since GNAT has a -gnat83 option, then we can easily avoid extra feature in our development. To have more choice ? I am a bit puzzled. The interest of an alternative is when the new product is better than the previous in at most one aspect. It has been stressed that …

Hi ! gnat user manual says : -gnat83 Although GNAT is primarily an Ada 95 compiler, it accepts this switch to specify that an Ada 83 program is to be compiled in Ada 83 mode. If you specify this switch, GNAT rejects most Ada 95 extensions and applies Ada 83 semantics where this can be done easily…

My 2 cents wrt. Ada 83: Avionics safety critical embeddes software Development, unit and integration test on host computer, tests on software test bench: some Ada 83 compiler Ported to mockup for target tests, embedded target computer: different Ada 83 compiler manufacturer I’ve never heard of d…

[image] F-Loyer: I havn’t understood the interest since GNAT has a -gnat83 option, then we can easily avoid extra feature in our development. First of all: you’re of course right in a utilitarian way. GNAT is a fantastic compiler and I personally wouldn’t want to backport the systems I’ve wri…

[image] jelle: Why did Ada 95 evolve this way? Why is Ada 2022 considered a “big” language I guess that additions to each previous version helps to make the language more expressive. I guess the GtkAda library is more natural with tagged types. [image] jelle: but having alternatives is a…

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Anyone interested in resurrecting an open source strict Ada 83 (mil-std 1815A) compiler?

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