From: Armin Steinhoff <a-steinhoff@web.de>
Subject: Re: Ada and QNX
Date: 2000/10/16
Date: 2000-10-16T00:00:00+00:00 [thread overview]
Message-ID: <8sfk0n0160v@drn.newsguy.com> (raw)
In-Reply-To: 39EB283A.9F7B4F76@motorola.com
Hi Igor,
In article <39EB283A.9F7B4F76@motorola.com>, Igor says...
>
>Summarizing what you and others replied, it looks like everything is
>cool with Ada. Just wondering why it is not yet really resurrected and
>blooming and shining in all its glory.
>
>Perhaps my personal doubts aren't that personal, huh? Nobody appears to
>write an OS in Ada, being so good for system level work.
I deed a lot of system level work ( file control processor of a PBX computer
system) with the language CHILL. It is very similar to ADA because CHILL
inherited a lot of ADA contructs ... so I can imagine to do the same work in
ADA.
>And by the way, many people say that GCC does not generate good code for C, so
>>I'm kinda curious how does GNAT manage to generate good code for such a more
>complex language as Ada. Aside from code generation itself, how do they
>manage to implement things like rendesvous in an efficient
BTW the rendesvous based IPC of ADA is 99,9% similar to the QNX IPC ... so
QNX seems to be the perfect platform for an ADA runtime environment :-)
>AND portable way?
Where is the problem? The implementations might be different ... but not the
validated interface to the runtime environment of ADA.
> Such things normally belong to system-dependent runtime libraries,
>but in Ada they are part of language
... not of the language, it's part of the runtime environment and that 'can' be
build on top of a RTOS.
> and having no proof I nevertheless
>suspect that they are implemented by trading efficiency for portability.
I can't see why an ADA application should not be portable at source code level
between validated ADA compilers and runtime environments ...
>It could be that I simply don't know enough and miss something. Would be
>glad to be enlightened :)
Hope someone could do the GNAT port to QNX RTP for you ... so you could play a
little bit with ADA ;-)
ADA was created to support huge software projects ... so it contains a lot of
paradigms which makes our life easier.
Armin
BTW ... the biggest disadvantage with ADA is(was) the puristic validation
process (defined for by the DoD and used often as a competitiv wappen against
non US implementations. Just my OBSERVATION ... years ago.)
next prev parent reply other threads:[~2000-10-16 0:00 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-29 0:00 Ada and QNX Michal Morawski
2000-09-29 0:00 ` Jeff Creem
2000-09-29 0:00 ` Armin Steinhoff
2000-09-29 0:00 ` Jeff Creem
2000-09-30 0:00 ` Armin Steinhoff
2000-10-03 0:00 ` Armin Steinhoff
2000-09-30 0:00 ` James Boucher
2000-09-30 0:00 ` gdemont
2000-09-30 0:00 ` Robert Dewar
2000-10-14 0:00 ` ahummmm
2000-10-15 0:00 ` Lao Xiao Hai
2000-10-16 5:27 ` Igor Kovalenko
2000-10-16 0:00 ` Ken Garlington
2000-10-16 0:00 ` Marin David Condic
2000-10-16 0:00 ` Igor Kovalenko
2000-10-16 0:00 ` Gautier
2000-10-16 0:00 ` Armin Steinhoff [this message]
2000-10-16 0:00 ` Marin David Condic
2000-10-17 0:28 ` Robert Dewar
2000-10-17 0:00 ` Frode Tennebø
2000-10-17 0:00 ` Ted Dennison
2000-10-18 0:00 ` Robert Dewar
2000-10-17 0:00 ` Steffen Huber
2000-10-17 0:00 ` Larry Kilgallen
2000-10-18 0:00 ` Robert Dewar
2000-10-17 0:00 ` Armin Steinhoff
2000-11-03 5:11 ` CMM in outside software (was Re: Ada and QNX) Robert I. Eachus
2000-11-03 5:34 ` Ken Garlington
2000-10-16 0:00 ` Ada and QNX Robert Dewar
2000-10-17 5:38 ` Igor Kovalenko
2000-10-17 0:00 ` David C. Hoos, Sr.
2000-10-18 0:00 ` Tarjei T. Jensen
2000-10-19 0:00 ` ADA vs. SmallEiffel Armin Steinhoff
2000-10-16 0:00 ` Ada and QNX David Starner
2000-10-16 0:00 ` Gautier
2000-10-16 0:00 ` mjsilva
2000-10-16 0:00 ` Igor Kovalenko
2000-10-16 0:00 ` Lao Xiao Hai
2000-10-16 0:00 ` mjsilva
2000-11-03 0:00 ` mark_lundquist
2000-10-17 0:39 ` Robert Dewar
2000-10-17 5:00 ` Igor Kovalenko
2000-10-17 0:00 ` aek
2000-10-17 0:00 ` Gautier
2000-10-17 0:00 ` Igor Kovalenko
2000-10-17 0:00 ` Ted Dennison
2000-10-17 0:00 ` Pat Rogers
2000-10-17 0:00 ` Igor Kovalenko
2000-10-18 0:00 ` Pat Rogers
2000-10-18 0:00 ` Igor Kovalenko
2000-10-18 0:00 ` Pat Rogers
2000-10-18 0:00 ` Marin David Condic
2000-10-18 0:00 ` Ted Dennison
2000-10-18 0:00 ` Pat Rogers
2000-10-18 0:00 ` Igor Kovalenko
2000-10-18 0:00 ` Igor Kovalenko
2000-10-17 0:00 ` Gautier
2000-10-17 0:00 ` Armin Steinhoff
2000-10-17 0:00 ` mjsilva
2000-10-17 0:00 ` Ted Dennison
2000-10-17 0:00 ` Buyer's Remorse? (was Re: Ada and QNX) mjsilva
2000-10-17 0:00 ` Ada and QNX mjsilva
2000-10-15 0:00 ` James Boucher
2000-10-15 0:00 ` Steve Bellenot
2000-09-30 0:00 ` Ted Dennison
2000-09-30 2:35 ` DuckE
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