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 10874 invoked from network); 30 Nov 2021 18:53:42 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 30 Nov 2021 18:53:42 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 5A9AC9CF12; Wed, 1 Dec 2021 04:53:38 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 809969C78B; Wed, 1 Dec 2021 04:51:03 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id F10F39C78B; Wed, 1 Dec 2021 04:50:59 +1000 (AEST) Received: from darkstar.fourwinds.com (fourwinds.com [63.64.179.162]) by minnie.tuhs.org (Postfix) with ESMTPS id 1DF2A94502 for ; Wed, 1 Dec 2021 04:50:58 +1000 (AEST) Received: from darkstar.fourwinds.com (localhost [127.0.0.1]) by darkstar.fourwinds.com (8.16.1/8.15.2) with ESMTP id 1AUIovk2006897 for ; Tue, 30 Nov 2021 10:50:57 -0800 Received: from darkstar.fourwinds.com (jon@localhost) by darkstar.fourwinds.com (8.16.1/8.15.2/Submit) with ESMTP id 1AUIovEG006894 for ; Tue, 30 Nov 2021 10:50:57 -0800 Message-Id: <202111301850.1AUIovEG006894@darkstar.fourwinds.com> From: Jon Steinhart To: tuhs@minnie.tuhs.org In-reply-to: <202111301530.1AUFU2eC015214@freefriends.org> References: <010901d7e5c1$4a0c7c20$de257460$@gmail.com> <202111301530.1AUFU2eC015214@freefriends.org> Comments: In-reply-to arnold@skeeve.com message dated "Tue, 30 Nov 2021 08:30:02 -0700." MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <6892.1638298257.1@darkstar.fourwinds.com> Date: Tue, 30 Nov 2021 10:50:57 -0800 X-JON-SPAM: local delivery 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" arnold@skeeve.com writes: > Can someone please explain why it's called "random" logic? Discrete > logic I understand (more or less), but I've not heard the term "random" > used in this context before now. Well, as a recovered random logic designer, I think that the name comes from there being no particular structure to the logic. Many parts of logic design are very regular, think memory. But that regularity doesn't exist when, for example, decoding irregular instructions.