From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: tuhs-bounces@minnie.tuhs.org X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.1 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 27002718 for ; Sun, 17 Jun 2018 10:33:14 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 51E60A18C9; Sun, 17 Jun 2018 20:33:13 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 825429EDE4; Sun, 17 Jun 2018 20:33:01 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (1024-bit key; secure) header.d=hamartun.priv.no header.i=@hamartun.priv.no header.b=ZIQbNnR2; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 20B8B9EDE4; Sun, 17 Jun 2018 20:32:58 +1000 (AEST) X-Greylist: delayed 317 seconds by postgrey-1.35 at minnie.tuhs.org; Sun, 17 Jun 2018 20:32:56 AEST Received: from barsoom.hamartun.priv.no (barsoom.hamartun.priv.no [193.71.27.8]) by minnie.tuhs.org (Postfix) with ESMTPS id 3AA4A9BC34 for ; Sun, 17 Jun 2018 20:32:56 +1000 (AEST) Received: from thuvia.hamartun.priv.no (thuvia.hamartun.priv.no [IPv6:2001:8c0:c904:10::7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by barsoom.hamartun.priv.no (Postfix) with ESMTPS id 2B8961C718A; Sun, 17 Jun 2018 12:27:36 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hamartun.priv.no; s=barsoom; t=1529231256; bh=0TRqBU6U0UBPB6JpTPhutdn3WHRPq/k9DS3qvrz1Rz4=; h=From:To:Cc:Subject:References:Date:In-Reply-To; b=ZIQbNnR2xw4HK4T1HnnpbzXu2jq5V0E28xl2sK+wA5lBE6Wvsyy494tEMRj4GjlQM sgn6lQtIfieMcRvjJTXH1geOEPSc0rQCBh3/F+shGLhE4A4+vJJu423uE7LoIdY53Y +bkrzN9fSzU30qLTseTlzNfGV+u3QHClI4b7yNpw= Received: by thuvia.hamartun.priv.no (Postfix, from userid 501) id E17B54DEAA; Sun, 17 Jun 2018 12:27:35 +0200 (CEST) To: Noel Chiappa References: <20180616192402.120E718C0A7@mercury.lcs.mit.edu> Date: Sun, 17 Jun 2018 12:27:33 +0200 In-Reply-To: <20180616192402.120E718C0A7@mercury.lcs.mit.edu> (Noel Chiappa's message of "Sat, 16 Jun 2018 15:24:02 -0400 (EDT)") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Subject: Re: [TUHS] maybe off-topic: Unix on a microcontroller X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Tom Ivar Helbekkmo via TUHS Reply-To: Tom Ivar Helbekkmo Cc: TUHS@minnie.tuhs.org Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Noel Chiappa writes: > ISTR reading that it runs in Supervisor mode (no doubt so it could use the > Supervisor mode virtual address space, and not have to go crazy with over= lays > in the Kernet space). Indeed. From "Installing and Operating 2.11BSD on the PDP-11": The networking in 2.11BSD runs in supervisor mode, separate from the mainstream kernel. There is room without overlaying to hold both a SL/IP and ethernet driver. This is a major win, as it allows the networking to maintain its mbufs in normal data space, among other things. =2Dtih =2D-=20 Most people who graduate with CS degrees don't understand the significance of Lisp. Lisp is the most important idea in computer science. --Alan Kay --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEOx1RUivb/a7Jp2nc8h13HtbpLogFAlsmN5UACgkQ8h13Htbp LogrwAf6A7GHHANF/F2lQeY1l1Fp9ZLhjjXvFdbyOnrvpz6wzInIdRiN9XZXJmVs vI6GaMlNQbhzfmyjx/qVn+LgalB3qKrHIahr773XyWoFyxGj8Fr0J1/RKZQW1dH0 AAuTMcsNvWVi9VvnMDka77G3yENsQ6vXFkkjzPHueykQYoAPo/Nig68iE9tSqRaV ztfAAmg5WNkeozOVVtKl8SZAgNCNSCcqYcVSG4+PF1CNH0CeVwUPT2un8A1Mf+op eOIKjbO3M+5mdYsZQcx/tPr8XZyQuzCosU1KUtXddiT+TYisw9vxIVtYOkUCwFf3 yDp5VziXu5LQlOapWQp+wGagKI0V4Q== =fA9Q -----END PGP SIGNATURE----- --=-=-=--