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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII X-Google-Thread: 103376,216b18d81cce4f75 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-06-28 10:59:27 PST Path: archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!news.tele.dk!148.122.208.68!news2.oke.nextra.no!nextra.com!news3.oke.nextra.no.POSTED!not-for-mail Message-ID: <3B3B6F8F.EAA0F196@online.no> From: "Tarjei Tj�stheim Jensen" Organization: Jensen programvareutvikling X-Mailer: Mozilla 4.04 [en] (OS/2; I) MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Ada Microkernel? References: <3B183CB8.3EE396E7@engineer.com><_M3S6.8957$HL5.1284411@news6-win.server.ntlworld.com><8DKS6.27593$%_1.4657414@news2-win.server.ntlworld.com><0daV6.9332$6d5.1953313@news2-win.server.ntlworld.com> <3B34AE89.FFBE39EF@ebox.tninet.se> <9heq45$j9f$1@wanadoo.fr> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit NNTP-Posting-Host: 130.67.235.194 X-Complaints-To: news-abuse@nextra.no NNTP-Posting-Date: Thu, 28 Jun 2001 19:59:16 MEST X-Trace: news3.oke.nextra.no 993751156 130.67.235.194 Date: Thu, 28 Jun 2001 18:55:27 +0100 Xref: archiver1.google.com comp.lang.ada:9212 Date: 2001-06-28T18:55:27+01:00 List-Id: Fr�d�ric BOYER wrote: > For the moment we try to status which microkernel model we gonna to take : > Mach ou make a L4 clone in Ada .. L4 clone. Mach has had its day. It supposedly was not a very good microkernel either. All the interesting developments in microkernels happened after mach was released :-) The L4 approach is to write at least the core kernel in assembly language and then use a high level language to create the rest of the system. That may limit the kind of hardware on which your kernel might run on. That need not be a disadvantage if you target SMP boards. Being SMP ready out of the box would be cool. BTW It might be useful to use a BSD license for such a project. That way you can graft on one of the BSD kernels onto the microkernel. And you might have a fair chance of attracting developers. Greetings,