From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: ADA CORE TECHNOLOGIES ANNOUNCES GNAT-TO-JAVA SYSTEM
Date: 1997/09/18
Date: 1997-09-18T00:00:00+00:00 [thread overview]
Message-ID: <dewar.874623267@merv> (raw)
In-Reply-To: 34204085.5377@ibm.net
Ralph replies to Paul:
<<> I realize that the JVM port is motivated (quite rightly, IMO) by economic
> reasons, but I wonder if some other "intermediate form" besides byte
> codes might be better if one wanted a portable format which could then
> be compiled.
>
> -- Brian
There already one such thing. It's called slim binaries and is used on
some
Oberon-2 system. These system use some sort of abstract tree
representation
as "byte-code". This AST is then compiled on the fly on the supported
platform.
>From what I read on it the technology gives you protable object-code
and
native peformance. Also the program flow analysis which is done in Java>>
Oh goodness, this is an OLD OLD idea, P-code is of course one of the earliest
and best known attempts (there was a whole technology of native code
generators, and no doubt you could find a SMS sales person willing to make
the same absurd claim of 100% portability with native performance that is
always bandied about for such systems.
But there are literally dozens of designs and attempts in this direction,
it is after all a perfectly obvious idea, closely related to the ancient
UNCOL proposal.
For a slightly more credible attempt, see the DDCI technical product
information, which describes how they use one of the more sophisticated
approaches along these lines. If DDCI is listening, I will let them fill
in the details!
next prev parent reply other threads:[~1997-09-18 0:00 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-09-11 0:00 ADA CORE TECHNOLOGIES ANNOUNCES GNAT-TO-JAVA SYSTEM Robert Dewar
1997-09-12 0:00 ` Stephen Leake
1997-09-13 0:00 ` Tarjei T. Jensen
1997-09-14 0:00 ` Robert Dewar
1997-09-14 0:00 ` Tarjei T. Jensen
1997-09-15 0:00 ` Robert Dewar
1997-09-13 0:00 ` Robert Dewar
1997-09-14 0:00 ` Ralph Paul
1997-09-14 0:00 ` Robert Dewar
1997-09-16 0:00 ` Ralph Paul
1997-09-16 0:00 ` Brian Rogoff
1997-09-17 0:00 ` Ralph Paul
1997-09-18 0:00 ` Robert Dewar [this message]
1997-09-19 0:00 ` Richard A. O'Keefe
1997-09-19 0:00 ` Jon S Anthony
1997-09-20 0:00 ` Jay Han
1997-09-22 0:00 ` Richard A. O'Keefe
1997-09-20 0:00 ` Robert Dewar
1997-09-21 0:00 ` Fergus Henderson
1997-09-22 0:00 ` Robert Dewar
1997-09-17 0:00 ` Tarjei T. Jensen
1997-09-18 0:00 ` Robert Dewar
1997-09-15 0:00 ` Stephen Leake
1997-09-15 0:00 ` Mark L. Fussell
1997-09-16 0:00 ` Robert Dewar
1997-09-17 0:00 ` Stephen Leake
1997-09-18 0:00 ` Robert Dewar
1997-09-19 0:00 ` W. Wesley Groleau x4923
1997-09-20 0:00 ` Robert Dewar
1997-09-23 0:00 ` multi-language to JVM compilers? W. Wesley Groleau x4923
1997-09-19 0:00 ` translating to Ada, was Re: ADA CORE TECHNOLOGIES ANNOUNCES GNAT-TO-JAVA SYSTEM Tom Moran
1997-09-16 0:00 ` Tucker Taft
1997-09-17 0:00 ` Robert Dewar
-- strict thread matches above, loose matches on Subject: below --
1997-09-15 0:00 Marc Wachowitz
1997-09-20 0:00 Marc Wachowitz
1997-09-21 0:00 ` Robert Dewar
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