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Reply-To: "Richard  Riehle" <adaworks@earthlink.net>
From: "Richard  Riehle" <adaworks@earthlink.net>
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Date: Wed, 09 Jun 2004 23:30:12 GMT
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Date: 2004-06-09T23:30:12+00:00
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Ed,

Thanks for the clarification.  I did recall that PL/I had
a role in developing the first Alsys Ada compiler.

Richard Riehle
==================================================
"Ed Falis" <falis@verizon.net> wrote in message
news:opr9ci0hug5afhvo@news.verizon.net...
> On Wed, 09 Jun 2004 17:02:30 -0400, Robert I. Eachus
> <rieachus@comcast.net> wrote:
>
> > AFAIK though, the first Alsys compiler was written in Ada.  At one point
> > was compiled with the DEC Ada compiler.  Why?  Why not?  It saved some
> > time in bootstraping, and eventually, like GNAT it was self-hosting with
> > multiple potential target architectures.
> >
>
> A bootstrap compiler was written in PL/1.  The real compiler was written
> in Ada.  Alsys and Digital compiled each others' compilers as robustness
> tests.
>
> - Ed