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, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 22706 invoked from network); 17 Aug 2020 19:52:35 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 17 Aug 2020 19:52:35 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id D93009E1BA; Tue, 18 Aug 2020 05:52:30 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 00B4F9CAB3; Tue, 18 Aug 2020 05:51:57 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id B3F159E186; Tue, 18 Aug 2020 05:51:14 +1000 (AEST) Received: from mercury.lcs.mit.edu (mercury.lcs.mit.edu [18.26.0.122]) by minnie.tuhs.org (Postfix) with ESMTPS id 4F2249E19A for ; Tue, 18 Aug 2020 05:51:10 +1000 (AEST) Received: by mercury.lcs.mit.edu (Postfix, from userid 11178) id 75FED18C09E; Mon, 17 Aug 2020 15:51:08 -0400 (EDT) To: tuhs@tuhs.org Message-Id: <20200817195108.75FED18C09E@mercury.lcs.mit.edu> Date: Mon, 17 Aug 2020 15:51:08 -0400 (EDT) From: jnc@mercury.lcs.mit.edu (Noel Chiappa) Subject: Re: [TUHS] Memory management in Dennis Ritchie's C Compiler X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jnc@mercury.lcs.mit.edu Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" > From: Larry > It's possible the concept existed in some other OS but I'm not aware of > it. It's pretty old. Both TENEX and ITS had the ability to map file pages into a process' address space. Not sure if anything else of that vintage had it (not sure what other systems back then _had_ paging, other than Atlas; those two both had custom KA10 homebrew hardware mods to support paging). Of course, there's always Multics... (sorry, Ken :-). Noel