From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 19174 invoked from network); 10 Oct 2022 19:48:28 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 10 Oct 2022 19:48:28 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 4107440EC6; Tue, 11 Oct 2022 05:48:23 +1000 (AEST) Received: from junk.nocrew.org (junk.nocrew.org [51.15.56.219]) by minnie.tuhs.org (Postfix) with ESMTPS id F086F40EC5 for ; Tue, 11 Oct 2022 05:48:16 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=junk.nocrew.org) by junk.nocrew.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1ohyl4-0007NP-Qa; Mon, 10 Oct 2022 19:48:14 +0000 From: Lars Brinkhoff To: Michael Casadevall Organization: nocrew References: Date: Mon, 10 Oct 2022 19:48:14 +0000 In-Reply-To: (Michael Casadevall's message of "Mon, 10 Oct 2022 14:33:25 -0400") Message-ID: <7wbkqjmpdt.fsf@junk.nocrew.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 127.0.0.1 X-SA-Exim-Mail-From: lars@nocrew.org X-SA-Exim-Scanned: No (on junk.nocrew.org); SAEximRunCond expanded to false Message-ID-Hash: OWJ3YLCNPOBXI7EY52HIYSA6AJV2STAC X-Message-ID-Hash: OWJ3YLCNPOBXI7EY52HIYSA6AJV2STAC X-MailFrom: lars@nocrew.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: tuhs@tuhs.org X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Attempting To Build NOSC and BBN UNIXs + ARPANET code List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Michael Casadevall wrote: > part of impio.c is cut off. However, this isn=E2=80=99t quite as bad as it > sounds. For example, by kitbashing both the original v6 source code, > and the later BBN TCP code, I was able to create a sys4.c that builds > and links which should be close to the original. Furthermore, it is > possible to use the =E2=80=9Cvdh=E2=80=9D target instead of the imp targe= t to at least > try and get the code building. Too bad about impio.c! Maybe something can be extracted from the unix.greg binary? I see there's also the ACC interface, another alternative to IMP11A. > My guess is it's either deadlocked waiting for the IMP, or there=E2=80=99s > something wrong with the build. Since you don't have anything backing the hardware registers for the IMP interface, it seems likely something will be upset. > Furthermore, I do know that I can run some of the ARPA level utilities > in MIT ITS on CHAOSNET, which will be an upcoming project, although > that is going to be a dive in and of itself. It's complicated. Many of the utilities have parallels between the two, and some work on both. And there's a server to provide a gateway from Chaosnet to Arpanet. Give me a ping when you're looking into ITS. > I know IMPs have been emulated, and even have successfully routed > packets, so I=E2=80=99m also trying to figure out how much would still be > necessary to actually recreate a minimal ARPA network? Reviving the host software, like you are are doing, is one vital part of it. Another it adding emulators for various IMP interfaces. I.e. you will not get anywhere without adding one of IMP11A, ACC, or VDH to SIMH. For adding other nodes to the network, PDP-10 hosts are your best bet. There isn't much else left.