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, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 25874 invoked from network); 18 Dec 2023 16:39:00 -0000 Received: from minnie.tuhs.org (2600:3c01:e000:146::1) by inbox.vuxu.org with ESMTPUTF8; 18 Dec 2023 16:39:00 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 4DC0943EAA; Mon, 18 Dec 2023 06:42:27 +1000 (AEST) Received: from exhmta20.bpe.bigpond.com (exhmta20.bpe.bigpond.com [203.42.40.164]) by minnie.tuhs.org (Postfix) with ESMTPS id 7728043EA5 for ; Mon, 18 Dec 2023 06:42:23 +1000 (AEST) Received: from exhprdcmr03 by exhprdomr20 with esmtp (envelope-from ) id 1rExxt-000Em2-11 for tuhs@tuhs.org; Mon, 18 Dec 2023 07:42:21 +1100 Received: from [110.141.193.233] (helo=aneurin.horsfall.org) by exhprdcmr03 with esmtp (envelope-from ) id 1rExxt-0005wf-0R for tuhs@tuhs.org; Mon, 18 Dec 2023 07:42:21 +1100 Received: from aneurin.horsfall.org (localhost [127.0.0.1]) by aneurin.horsfall.org (8.15.2/8.15.2) with ESMTP id 3BHKOY6I038320 for ; Mon, 18 Dec 2023 07:24:34 +1100 (EST) (envelope-from dave@horsfall.org) Received: from localhost (dave@localhost) by aneurin.horsfall.org (8.15.2/8.15.2/Submit) with ESMTP id 3BHKOYjW038317 for ; Mon, 18 Dec 2023 07:24:34 +1100 (EST) (envelope-from dave@horsfall.org) X-Authentication-Warning: aneurin.horsfall.org: dave owned process doing -bs Date: Mon, 18 Dec 2023 07:24:33 +1100 (EST) From: Dave Horsfall To: The Eunuchs Hysterical Society In-Reply-To: Message-ID: References: <7AD36632-2B2F-43E2-999D-4F6373C3C64C@pobox.com> <17d9946c-6f41-4c56-9cb0-3218a2550299@ucsb.edu> User-Agent: Alpine 2.21.9999 (BSF 287 2018-06-16) X-GPG-Public-Key: http://www.horsfall.org/gpgkey.pub X-GPG-Fingerprint: 05B4 FFBC 0218 B438 66E0 587B EF46 7357 EF5E F58B X-Home-Page: http://www.horsfall.org/ X-Witty-Saying: "chmod 666 the_mode_of_the_beast" MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-tce-ares-id: e{6b2c22d6-2f47-4e4a-b85e-d63a1674ac19}1 X-tce-spam-action: no action X-tce-spam-score: 0.0 X-Cm-Analysis: v=2.4 cv=BtFbg6b5 c=1 sm=1 tr=0 ts=657f5d2d a=tp40vz5QK/dVXQmd7GLw7w==:117 a=tp40vz5QK/dVXQmd7GLw7w==:17 a=kj9zAlcOel0A:10 a=e2cXIFwxEfEA:10 a=oa9pLO8qtKhj_d3LP5AA:9 a=CjuIK1q_8ugA:10 X-Cm-Envelope: MS4xfC/WA3zmVJnrWjO8dIcpMy3fw2UfitzYDOcPFqCYNRFyOy+g/Xy62kyJjNWImwSJ03QUUkcsWUB4jW1rATIV9En294lyNzodUuBw5pTzzIb1fnUSGgza cnjNUFD29pFuzTFiwZVkN3k/A+8wMzL0++BTZDtfS5KTyFHF4yp3CzJu Message-ID-Hash: NLASJ5BWGV2ODX7HOS765OPYZFIF43JZ X-Message-ID-Hash: NLASJ5BWGV2ODX7HOS765OPYZFIF43JZ X-MailFrom: dave@horsfall.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Compatibility question List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Sun, 17 Dec 2023, Paul Winalski wrote: > One problem that the VT100 emulators may have is that they behave > according to the published VT100 specifications rather than the actual > hardware behavior. DEC did pretty much the same thing with the Unibus to keep out 3rd-party boards; the published specs didn't match the implementation, so your non-DEC board would have subtle timing issues. DEC of course just shrugged and said "Our boards work just fine, so yours must be faulty"... -- Dave