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=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 17257 invoked from network); 30 Nov 2021 15:21:11 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 30 Nov 2021 15:21:11 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 87EBA9CF27; Wed, 1 Dec 2021 01:21:06 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 974EC93D53; Wed, 1 Dec 2021 01:19:09 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ronnatalie.com header.i=@ronnatalie.com header.b="MTnDaZgP"; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.b="IU2OBnoH"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id F232C93D53; Wed, 1 Dec 2021 01:19:05 +1000 (AEST) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by minnie.tuhs.org (Postfix) with ESMTPS id 0DE2D93D29 for ; Wed, 1 Dec 2021 01:19:05 +1000 (AEST) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 9AA315C0237; Tue, 30 Nov 2021 10:19:03 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Tue, 30 Nov 2021 10:19:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ronnatalie.com; h=from:to:subject:cc:date:message-id:in-reply-to:references :reply-to:mime-version:content-type:content-transfer-encoding; s=fm2; bh=qYFLPsVkCIymhywvw+Hbhn4WI5fhpITCbFHHWJ3lXk4=; b=MTnDa ZgPuDJIKGMdAy/RSyaKsnLVQsj5bwfaeusekw+/2gClVo9Zo6kDkhWOqvWodZVRr wC2DikBxnQ2Zgeq6CP3izNMbUxo4Mb5ksFFs/pAj82CstaQ+rmfUaEji1pwmVrKc mJxZbHyGFIJ4l6GZeEz64J8gOk7XM2HiMKa53KPkyfV4xrKTQR12iSuoBTpgETvu kn5oRn0g6IQWRO8+uqxS4Uy2GvZhSYip+4BnE1Q0w1UvrGSNtBUyha4WEPUTCieS RyOt/9ebj4xf7+IpAbJ6ZSUBdzl2cbEfHQYwCoOnGVDeJYNs9YozJxt9lOoXXz7e EdZzqiax1qGINXCaw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :reply-to:subject:to:x-me-proxy:x-me-proxy:x-me-sender :x-me-sender:x-sasl-enc; s=fm1; bh=qYFLPsVkCIymhywvw+Hbhn4WI5fhp ITCbFHHWJ3lXk4=; b=IU2OBnoHhW3uXniWeqriJK08sdCSJYeiZClOCGvhRiB6J 6QFdtZrQtQFUwvzK3gK/ljDb1Tm1izdSsnO2+USXOT0HNQ6FVKFRDRaGIG0CF05W rmOMtrsGfzoE0+YHkPxXihIerLQHhhV/Iq5BhlajjtvxRA8+ybIAYv1A0HM5vUhl PdWuUOZUL8L5Ap2/WsLprGMH6BIpAvSGTxbPqB67xZojEkXPi4M0/qH0PufCoSMA M/rqKs5GXS/sJvZD3uCzgXe3/E0WzN8qTzHpbaDu1+trNwVS5wzj/aEagNXkR0MQ 3EAWXQ44fZGmXvpalw9goddmKU5LQQxnGEPvRhaEg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddriedugdejhecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkjghfrhgfgggtgfesthhqredttderjeenucfhrhhomhepfdftohhn ucfprghtrghlihgvfdcuoehrohhnsehrohhnnhgrthgrlhhivgdrtghomheqnecuggftrf grthhtvghrnhepffduteevteffueethfelledvtdefhfekhfdvgfehudejveeijeekvddv tdejveegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomh eprhhonhesrhhonhhnrghtrghlihgvrdgtohhm X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 30 Nov 2021 10:19:02 -0500 (EST) From: "Ron Natalie" To: pbirkel@gmail.com, "'TUHS main list'" Date: Tue, 30 Nov 2021 15:19:00 +0000 Message-Id: In-Reply-To: <010901d7e5c1$4a0c7c20$de257460$@gmail.com> References: <010901d7e5c1$4a0c7c20$de257460$@gmail.com> User-Agent: eM_Client/8.2.1659.0 Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Subject: Re: [TUHS] Encoding an ISA: Random Logic vs. Control Stores 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: , Reply-To: Ron Natalie Cc: 'Eugene Miya' Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Indeed, the early PDPs (10/15/20) had no microprogramming at all. Even=20 the early microprogrammed ones used "random logic" to implement that. =20 It would take ten years before large scale integration took over. The=20 PDP-11/44 in 1979 was the last of the discrete logic CPUs. ------ Original Message ------ From: pbirkel@gmail.com To: "'TUHS main list'" Cc: "'Eugene Miya'" Sent: 11/30/2021 3:07:15 AM Subject: [TUHS] Encoding an ISA: Random Logic vs. Control Stores >I believe that the PDP-11 ISA was defined at a time when DEC was still usi= ng >random logic rather than a control stor