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Date: 12 Aug 93 20:13:37 GMT
From: magnesium.club.cc.cmu.edu!news.sei.cmu.edu!ajpo.sei.cmu.edu!falis@uunet.u
u.net  (Edward Falis)
Subject: Re: Language runtime requirements (was Re: DoD
Message-ID: <1993Aug12.161337.17725@sei.cmu.edu>
List-Id: <comp.lang.ada>

As for our LynxOS, MVS, Solaris, HP-RT and OS/2 products, the Windows-NT
Ada compiler will map Ada tasks onto OS threads.  For OS' that don't
provide lightweight processes, we generally map all tasks into a single
process.  For embedded-oriented products, tasks are basically a register
set, control block and some workspace.

So, while I agree with the comment that the Alsys runtime does assume it's
the "main", I can't agree with the conclusion that we ignore the OS under-
lying capabilities.  The runtime comprises multiple virtual machine layers
that are mapped onto a bottom layer of services that we judge to be
most effective for a given operating environment.

The NT compiler will be on display at our booth at Tri-Ada.

- Ed Falis, Alsys