Path: csiph.com!eternal-september.org!feeder.eternal-september.org!nntp.eternal-september.org!.POSTED!not-for-mail From: Tim Rentsch Newsgroups: comp.arch Subject: Re: Concertina II Instead Date: Wed, 18 Mar 2026 00:18:53 -0700 Organization: A noiseless patient Spider Lines: 11 Message-ID: <86cy1161wi.fsf@linuxsc.com> References: <10p75jk$1dmen$1@dont-email.me> <10pcdgj$386c5$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Date: Wed, 18 Mar 2026 07:18:58 +0000 (UTC) Injection-Info: dont-email.me; posting-host="d8ad6cc581418585937912c9311862c5"; logging-data="3810187"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18BL0EPo0vWvZcNRs/RcFB7bBw40log7GU=" User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux) Cancel-Lock: sha1:WbcX1TcRLqihAAJYubll2CJ4ns4= sha1:X+rHlhBNY4JFgGn2pQdpkj+RhyU= Xref: csiph.com comp.arch:115410 quadi writes: > On Tue, 17 Mar 2026 20:18:00 +0000, John Dallman wrote: > >> Think about it. If this is possible, the parity checks must be >> implemented by microcode. > > It is true that nearly all System/360 models, except the Model 75 and the > 91/95/195, were microcoded. There was also the 360/44 if I am not mistaken.