From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,dea2d62ab1462538 X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news4.google.com!proxad.net!feeder1-2.proxad.net!newsfeed.straub-nv.de!noris.net!news.teledata-fn.de!newsfeed.arcor.de!newsspool2.arcor-online.net!news.arcor.de.POSTED!not-for-mail From: "Dmitry A. Kazakov" Subject: Re: Writing an Operating System in Ada Newsgroups: comp.lang.ada User-Agent: 40tude_Dialog/2.0.15.1 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Reply-To: mailbox@dmitry-kazakov.de Organization: cbb software GmbH References: <8e9bc311-7540-40a1-b19e-49e93648c25c@s31g2000yqs.googlegroups.com> Date: Thu, 14 Jan 2010 11:45:14 +0100 Message-ID: <3t7l4nep6nxx$.q8ux8y7cxfgd$.dlg@40tude.net> NNTP-Posting-Date: 14 Jan 2010 11:45:14 CET NNTP-Posting-Host: b38c9d6e.newsspool3.arcor-online.net X-Trace: DXC=jGc9Y^HBJ\R@@RW1FjIB5SMcF=Q^Z^V3X4Fo<]lROoRQ8kF_H:\T4W6Z;V^ X-Complaints-To: usenet-abuse@arcor.de Xref: g2news1.google.com comp.lang.ada:8744 Date: 2010-01-14T11:45:14+01:00 List-Id: On Thu, 14 Jan 2010 10:12:25 +0100, Jean-Pierre Rosen wrote: > Yes I do. IIRC, the project failed because they completely missed the > point. The processor was intended to be able to check the types of data > at run-time, something that the compiler had already done. In a sense, > it would have been a marvelous processor for any language but Ada - > bringing Ada's type safety to other languages. I disagree. One could perfectly complement another. If you wanted to create a safe OS you would like to protect system objects at the hardware level independently on whether the language does any checks or not. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de