From owner-freebsd-questions@freebsd.org Mon Aug 31 03:43:28 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C21283D43DA for ; Mon, 31 Aug 2020 03:43:28 +0000 (UTC) (envelope-from SRS0=KOeE=CJ=mail.sermon-archive.info=doug@sermon-archive.info) Received: from mail.sermon-archive.info (sermon-archive.info [71.177.216.148]) by mx1.freebsd.org (Postfix) with ESMTP id 4Bfwz35WR2z40Tj for ; Mon, 31 Aug 2020 03:43:27 +0000 (UTC) (envelope-from SRS0=KOeE=CJ=mail.sermon-archive.info=doug@sermon-archive.info) Received: from [10.0.1.251] (mini [10.0.1.251]) by mail.sermon-archive.info (Postfix) with ESMTPSA id 4Bfwz23SRvz2fjYg; Sun, 30 Aug 2020 20:43:26 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.15\)) Subject: Re: (very OT) Ideal partition schemes (history of partitioning) From: Doug Hardie In-Reply-To: Date: Sun, 30 Aug 2020 20:43:26 -0700 Cc: User Questions Content-Transfer-Encoding: quoted-printable Message-Id: <72ECE758-0797-48A1-9CCF-8A1128CBBB0A@mail.sermon-archive.info> References: <20200829154417.8dd5f83d.freebsd@edvax.de> To: Valeri Galtsev X-Mailer: Apple Mail (2.3445.104.15) X-Virus-Scanned: clamav-milter 0.101.4 at mail X-Virus-Status: Clean X-Rspamd-Queue-Id: 4Bfwz35WR2z40Tj X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of SRS0=KOeE=CJ=mail.sermon-archive.info=doug@sermon-archive.info designates 71.177.216.148 as permitted sender) smtp.mailfrom=SRS0=KOeE=CJ=mail.sermon-archive.info=doug@sermon-archive.info X-Spamd-Result: default: False [-1.90 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.97)[-0.975]; FROM_HAS_DN(0.00)[]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ip4:71.177.216.148]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[lafn.org: no valid DMARC record]; NEURAL_HAM_LONG(-0.99)[-0.994]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; NEURAL_HAM_SHORT(-0.53)[-0.534]; RCPT_COUNT_TWO(0.00)[2]; FORGED_SENDER(0.30)[bc979@lafn.org,SRS0=KOeE=CJ=mail.sermon-archive.info=doug@sermon-archive.info]; RCVD_NO_TLS_LAST(0.10)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; ASN(0.00)[asn:5650, ipnet:71.177.216.0/23, country:US]; FROM_NEQ_ENVFROM(0.00)[bc979@lafn.org,SRS0=KOeE=CJ=mail.sermon-archive.info=doug@sermon-archive.info]; MAILMAN_DEST(0.00)[freebsd-questions] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Aug 2020 03:43:28 -0000 > On 30 August 2020, at 07:35, Valeri Galtsev = wrote: >=20 >=20 >=20 >=20 > Thank you, Doug. You induced my refreshing of memory, and also showed = that I didn=E2=80=99t describe clear enough that BESM-6 instruction set. = I have my post above for convenience. That BESM-6 machine has = instruction set with three operands, and all of three operands can be = addresses in memory. But in general 3 operand instruction set can have = only one or two operands as memory addresses, the rest can be registers. = I looked on wikipedia (I assume, the following is what you referred to): >=20 > https://en.wikipedia.org/wiki/Instruction_set_architecture >=20 > and of all 3-oprand instruction sets it was only one: CISC by IBM that = affors all three operands be adresses in memory (alas, reference to it = given on wikipedia doesn=E2=80=99t seem to exist). I understood your first statement perfectly. I didn't have the time to = check out each of those architectures to ensure all three were = addresses. Back in 65, my one and only computer class, we were shown 1, = 2, and 3 address architectures. I don't know, or remember, if there = were actual examples of the 3 address architecture. It may have been = theoretical. A quick check through the texts I have remaining from then = doesn't show any examples. Virtually everything was based on single = address machines. However, the only machine I had any real access to = was a 2 address machine. -- Doug