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_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,HTML_MESSAGE,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 32350 invoked from network); 2 May 2022 14:14:30 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 2 May 2022 14:14:30 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 45C5C9D469; Tue, 3 May 2022 00:14:28 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id C88799D431; Tue, 3 May 2022 00:13:29 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="KvbWULFw"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 4B27F9D431; Tue, 3 May 2022 00:13:27 +1000 (AEST) Received: from mail-oi1-f170.google.com (mail-oi1-f170.google.com [209.85.167.170]) by minnie.tuhs.org (Postfix) with ESMTPS id 16C0B9CE23 for ; Tue, 3 May 2022 00:13:26 +1000 (AEST) Received: by mail-oi1-f170.google.com with SMTP id m11so15285051oib.11 for ; Mon, 02 May 2022 07:13:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=OLYhkmOcryFgL+JXJluocFk6o2Hf8R5xY9QpKBEEBCk=; b=KvbWULFwN2Hs9w924idRuZxcUrzL5QP4ZEP501vKHagmK1KWrj9Par6Ds62jI1+qyG FT77o2j6UXuW3xBv+qBk6nory4b4vecAw3zanzSO5EBvYkv2k/sogs8EsYpUqjrUqSJc V3K/fOiGwPzC56C7aeFI7dFRtlXs+qSgySiWO6EXaGRlG2TrDVfMpUc9bbNvgshsjb76 y9O1SFYMwTmtSNaJRwmUIe4EiKvXkSy5VtTdHCUew23AqRJH91fg14yav2T2sSVae49Q ylOFOIg7CaA5hYKhisFeCrPogGaZTkGYpyTJVFUm8dlLhp6n3Aa6/F8/vJKED7Se81WF oFgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=OLYhkmOcryFgL+JXJluocFk6o2Hf8R5xY9QpKBEEBCk=; b=ZHuaHASQwMz4/1HG5V/zm+qcEmsH/egQZoOaVNnUH5XJovcCMeMBhgmlbyVHpPSS7f 1yfnnpmK97Xzyqw9wdvmKAlRTevVA/ReFM5VKEA3WjFyYB49R4aA+DOmtfjjW5d2PQMQ mlP55hO1rl+qMhV2EfpOCzpr16qDH6PRvETl6Wx0UjorvtQLjDuyvh/lKLilt0CulVXS XKD34OhgZHWjvGa0iUXXY5ewLfXNzejZGnh+lXHZsykVB0gsuwburIHfzjjAF3p6g9Yn FWK2/N1R9m/lajqzXPdFl3N7ZjpSis+ZAt0lyU4ZO78RuCQT+tmPpIFM0P/j7IbmBlxR cnDQ== X-Gm-Message-State: AOAM5302kMNw337KciSTDfWAwpnjMGvFNE3EpmtSYnD+oSFz7kq7hp4W 3WwlYFrJpnSSG+OaBigj8hbjdm0BUkIzRKHEKQlf8LEI X-Google-Smtp-Source: ABdhPJyj2VAuzFMXencSB8JmV5II6XP4/g2wtfCFqCUvhXio3lm5P+MVN6Fnawkm5ER11v6gvwGOOhENU2japr4bNNQ= X-Received: by 2002:aca:3e05:0:b0:322:7d2e:9ad8 with SMTP id l5-20020aca3e05000000b003227d2e9ad8mr5531448oia.250.1651500805262; Mon, 02 May 2022 07:13:25 -0700 (PDT) MIME-Version: 1.0 References: <57977CE7-DDCC-4861-BBD2-843B9B9F51C2@ronnatalie.com> <202205020242.2422g30m074857@ultimate.com> In-Reply-To: From: Richard Salz Date: Mon, 2 May 2022 10:13:14 -0400 Message-ID: To: Kenneth Goodwin Content-Type: multipart/alternative; boundary="000000000000d811b105de07febc" Subject: Re: [TUHS] First Unix-like OSes not derived from AT&T code? 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: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --000000000000d811b105de07febc Content-Type: text/plain; charset="UTF-8" I remember hearing that about Cray. The anecdote was they thought their port of "make" was broken because it kept rebuilding everything. It turned out that the timestamp granularity of one second wasn't good enough. Also that if you wanted your program to stop, you needed three 'halt' instructions to make sure the full pipeline got the message. I'm less sure if that is real. --000000000000d811b105de07febc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I remember hearing that about Cray. The anecdote was = they thought their port of "make" was broken because it kept rebu= ilding everything. It turned out that the timestamp granularity of one seco= nd wasn't good enough.

Also that if you wanted= your program to stop, you needed three 'halt' instructions to make= sure the full pipeline got the message.=C2=A0 I'm less sure if that is= real.
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