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-Thread: 103376,a30a877db63b60c0 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news3.google.com!news.glorb.com!border1.nntp.dca.giganews.com!border2.nntp.dca.giganews.com!nntp.giganews.com!feed.cgocable.net!read2.cgocable.net.POSTED!53ab2750!not-for-mail From: "Warren W. Gay VE3WWG" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Hello World 217Kb ? References: <41a377ea$0$25071$ba620e4c@news.skynet.be> <41a3abd4$0$30691$ba620e4c@news.skynet.be> <41AAD53F.3060408@mailinator.com> <41b5c608$0$13482$ba620e4c@news.skynet.be> In-Reply-To: <41b5c608$0$13482$ba620e4c@news.skynet.be> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Date: Tue, 07 Dec 2004 18:15:57 -0500 NNTP-Posting-Host: 24.150.168.167 X-Complaints-To: abuse@cogeco.ca X-Trace: read2.cgocable.net 1102461302 24.150.168.167 (Tue, 07 Dec 2004 18:15:02 EST) NNTP-Posting-Date: Tue, 07 Dec 2004 18:15:02 EST Organization: Cogeco Cable Xref: g2news1.google.com comp.lang.ada:6825 Date: 2004-12-07T18:15:57-05:00 List-Id: Adrien Plisson wrote: > Warren W. Gay VE3WWG wrote: > >> This list is incomplete, but I found No_Run_Time so restrictive, that >> even for O/S projects, I didn't find this to be very useful! > > but we could write an Ada runtime in Ada using the pragma No_Run_Time, > then write an OS in Ada which uses the Ada runtime written in Ada which > uses the pragma No_Run_Time... > > anybody following ? ;p I think that is an ambitious undertaking. I have taken a different path, myself ;P I modified GNAT's runtime to work with the microkernal that I'm using. Once that is out of the way, you can compile your O/S modules nearly like GNAT applications (some restrictions apply, like the choice of startup routine). The GNAT RTL hack only took a about 5 weeknights to get going. ;-) All other O/S work is work in progress. -- Warren W. Gay VE3WWG http://home.cogeco.ca/~ve3wwg