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, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_WEB,T_DKIM_INVALID autolearn=no 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 9b319663 for ; Tue, 26 Jun 2018 21:40:55 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 4358CA1898; Wed, 27 Jun 2018 07:40:54 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 1E38FA181F; Wed, 27 Jun 2018 07:40:14 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=texoma.net header.i=@texoma.net header.b=uvaXaepY; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 6FF54A181F; Wed, 27 Jun 2018 07:40:11 +1000 (AEST) X-Greylist: delayed 4487 seconds by postgrey-1.35 at minnie.tuhs.org; Wed, 27 Jun 2018 07:40:10 AEST Received: from mx43-out3.antispamcloud.com (mx43-out3.antispamcloud.com [138.201.146.162]) by minnie.tuhs.org (Postfix) with ESMTPS id 28C399EDF1 for ; Wed, 27 Jun 2018 07:40:10 +1000 (AEST) Received: from vtech.texoma.net ([192.138.189.27]) by mx63.antispamcloud.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1fXsJm-000Bpn-3w for tuhs@minnie.tuhs.org; Tue, 26 Jun 2018 20:04:03 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=texoma.net; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version :Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=J162u9SBz2dwF4k/4mtVW6ym6MIBqGk/ompwCiEhlsA=; b=uvaXaepY+inb4u0APVA4O9aG9D gzQzfY1IZp/ZagEF/wFKkhrpO/dksZH4nB/etalJyOsnWopEFl/SIoxFDcbIX60NBUBn5MvD9Yhvj rM+HHMRT/AYrXB7TWk0qjtsqGG0aT/EPN3gBiDtV0NlYsjsWWJhvIVJqXDpZTwrIZFUu5bRxxDhyW GhW66eI/T2+op1IgO7vPqi5D5L/CI9FWCRiEOLFo9zI1zmBY8gz+D+Lcc+hPDZdY/UE3/0djtzpqX p6wzsi5xjU2JkJQmlMc5WRdxpWqxRPnvt7dlX93+9aYQxUkvQYaZwkKw2IGkNhCtbUVs+FGnvqBm1 R7p33LHw==; Received: from mec5636d0.tmodns.net ([208.54.86.236]:32596 helo=[192.168.1.101]) by vtech.texoma.net with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.91) (envelope-from ) id 1fXsJ3-0000Gr-WC; Tue, 26 Jun 2018 14:03:10 -0400 To: "Nelson H. F. Beebe" , tuhs@minnie.tuhs.org References: From: Cornelius Keck Message-ID: Date: Tue, 26 Jun 2018 13:03:24 -0500 User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:49.0) Gecko/20100101 Firefox/49.0 SeaMonkey/2.46 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OutGoing-Spam-Status: No, score=-2.1 X-From-Rewrite: unmodified, already matched X-Originating-IP: 192.138.189.27 X-AntiSpamCloud-Domain: out.texoma.net X-AntiSpamCloud-Username: vtech Authentication-Results: antispamcloud.com; auth=pass (login) smtp.auth=vtech@out.texoma.net X-AntiSpamCloud-Outgoing-Class: unsure X-AntiSpamCloud-Outgoing-Evidence: Combined (0.22) X-Recommended-Action: accept X-Filter-ID: EX5BVjFpneJeBchSMxfU5qitu4jxKl/a3yRffeNT4E1602E9L7XzfQH6nu9C/Fh9KJzpNe6xgvOx q3u0UDjvO+jXFjf/qDqiBPBa5wg/BO9+3CxNdwuQoHDhdxPWaVzarRbVZpzOOBuOuIN/bswAolpr jQPFk8m4tSTfORUp3ynEm+h0A2koB3qKN5bbUQlCeGukOcVkxUr6yxMEnJgMk432ycKuYR+eCujo ZgTPFnZKenuD+fJRvZgsOGa/86DNKY4i2I4KjPTYrQ+5jVlmW+/cSY+GknWNdoEa0JVhYAcTmEFB zGJ4I3iI+cUBLpxHZqMsFXHkY4b0tMjYHlbEsQVlXK/AZvfTJq0HT/GHPwW0g541N7zavlODTzvZ Rcz1P8biGVaHxdIhJpX2SF/frT/TpQy8kTfRo7YlxVS4t1aI+8ftzFe2XyLppMxgk9v7fQvp7jM6 WLSucbvIUtfMWgIPbR6iF0Io2IR6cFULTLnHEgV4HBy01ru1y7iS4JNjYab5Xr0qCKMm/9FIygp7 hGiH1Wgh6RAenBR+licROGbu5YA82uYhyiqf9wSb51UtEWBey4B/nqRgIhlg9r2f/b6kKZrNvM1U je/N+1WBrcAmf+3u+9+zevhS57Jt4hpTJ5PVm4mV/Pnq+SkMorZyxtM+m4WpRRDP6YzwkAPgQJZ5 aZpJyzssnF5ZyS/OkY4j6fwxLfkpEW1VB3Miwr0ET39C7hHBBbnPRCdSc8d73XpE0zMJNYMZVrgd 5/bqm+taOIapudC2n5Su7Y7hHHMktV7gbc8B/K/DxCgs5Q+1UifDqcigOvSxdRnthmhn8Zn6kDIo UUE/SyL0U+Wqv6+X96bpUBNirI1MK+KibBmEAGQowUQdLf6+382Ox500OY/D8t3Xj/LzZ5s/OJg1 L2asZwdYWFVC8oN31oebW3M9pgEYEWz2EitcCSWvcwgS/eh8B9A1vlgnwKNfqqF6KQUiBA== X-Report-Abuse-To: spam@quarantine2.antispamcloud.com Subject: Re: [TUHS] PDP-11 legacy, C, and modern architectures 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Now, that sounds interesting.. only hiccup is that I'm getting a "DOI Not Found" for 10.1145/3209212. Could it be that the write-up is going to take some time for the general public to see it? Nelson H. F. Beebe wrote: > There is a provocative article published today in the lastest issue of > Communications of the ACM: > > David Chisnall > C is not a low-level language > Comm ACM 61(7) 44--48 July 2018 > https://doi.org/10.1145/3209212 > > Because C is the implementation language of choice for a substantial > part of the UNIX world, it seems useful to announce the new article to > TUHS list members. > > David Chisnall discusses the PDP-11 legacy, the design of C, and the > massive parallelism available in modern processors that is not so easy > to exploit in C, particularly, portable C. He also observes: > >>> ... >>> A processor designed purely for speed, not for a compromise between >>> speed and C support, would likely support large numbers of threads, >>> have wide vector units, and have a much simpler memory model. Running >>> C code on such a system would be problematic, so, given the large >>> amount of legacy C code in the world, it would not likely be a >>> commercial success. >>> ... > > ------------------------------------------------------------------------------- > - Nelson H. F. Beebe Tel: +1 801 581 5254 - > - University of Utah FAX: +1 801 581 4148 - > - Department of Mathematics, 110 LCB Internet e-mail: beebe@math.utah.edu - > - 155 S 1400 E RM 233 beebe@acm.org beebe@computer.org - > - Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ - > ------------------------------------------------------------------------------- >