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_INVALID,DKIM_SIGNED, HTML_MESSAGE,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 28213 invoked from network); 19 Jul 2020 22:12:29 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 19 Jul 2020 22:12:29 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 82C609BA57; Mon, 20 Jul 2020 08:12:27 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id E5C549BA32; Mon, 20 Jul 2020 08:11:27 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ccil-org.20150623.gappssmtp.com header.i=@ccil-org.20150623.gappssmtp.com header.b="xVo9FZmc"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 7C7E59BA30; Mon, 20 Jul 2020 08:11:24 +1000 (AEST) Received: from mail-qt1-f173.google.com (mail-qt1-f173.google.com [209.85.160.173]) by minnie.tuhs.org (Postfix) with ESMTPS id 547B89BA2A for ; Mon, 20 Jul 2020 08:11:23 +1000 (AEST) Received: by mail-qt1-f173.google.com with SMTP id w27so11652377qtb.7 for ; Sun, 19 Jul 2020 15:11:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ccil-org.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=JLrvQpY2AzkcoaXiUWlS7tlFu4kJcaaMaNLL0z7GAfc=; b=xVo9FZmcpAh4uVWdOm3APLqJ+N3yEVd2/DyXYFLcNmWDOBcPORPJH5PtEJve57idpE aspgSfw1S9Zfz2uInKPOj2FSLd1UciUEGcZiE1IhxZUDEv++s/71FTUXPh6el2KmtK0n CrLyCYmkLNqEfWz+8qhzxU9vC9+UIFQzQMgYbVyrPFyiZL0R6tYxpRbcC5ha/CCr7jkk dyutnhC5Q5e//EcgNLbRTXRoAzubvB2VXnelmbT4q8orNYICTFCfAwGpM6iTgsAdPEIb UeRkEDhJFymo0uuCgMGSLQ+5S6kMNULKNEHC7E2aqnGlgSsNbNdpKj4HpDlPUW5hhi73 yi3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=JLrvQpY2AzkcoaXiUWlS7tlFu4kJcaaMaNLL0z7GAfc=; b=FuLRkbZ9C7IpLC5BUX4lnW9Tx7df8CYnt8/YYz700RTRlJHQwiDQBhIhrfLSE7Ajwu O4ZL3AYo2g573vok/iIKYlSpQcIxyNyKYC8OZwArc+i0SCSbJ39pxSZWW5aMNoNRMW5t jzmwpC7evF/blZAQ4FhagLUm65u/xmQgmLOdlEstZ0yA9Wdi2kF991wHixAOV4nfhQiT xxBqEgykFPTyw/A0yc+Y+NVEYfQVdu+reLypEaBnVEALX4o9PAytyfzWQyWz0E3QDRqG ORgzd8x+TynGdHaitM+iZnWOSv21FmADCFa4aBBVNC65a34EsL7g86veTlBk+O1H1lIo tVJg== X-Gm-Message-State: AOAM532+TE8Twmcf/uwhWZXC0QTrHG97MpUeczBLB+ycD1W52l7Q3dUu wpXyYNJpbEe4MivPkanSC1w0Fzl8ujVG2aWKULR/hA== X-Google-Smtp-Source: ABdhPJzdyO4fUfD60rrFU3kafQ8Lg+vSnrzcxSc3pgjiukj9HzWLbcu8j70rDAUE3VI8Z7cQ6+/r3MmFfTFWblEIwhM= X-Received: by 2002:ac8:3837:: with SMTP id q52mr21373257qtb.186.1595196682552; Sun, 19 Jul 2020 15:11:22 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: John Cowan Date: Sun, 19 Jul 2020 18:11:11 -0400 Message-ID: To: Paul Winalski Content-Type: multipart/alternative; boundary="0000000000009c594005aad2abb3" Subject: Re: [TUHS] MicroVAX architecture (was: Linux is on-topic) 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: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --0000000000009c594005aad2abb3 Content-Type: text/plain; charset="UTF-8" On Sun, Jul 19, 2020 at 4:43 PM Paul Winalski wrote: And the PL/I and COBOL > compilers were implementing packed decimal using decimal shadowing. > What is decimal shadowing? I see a few references to the term on line, but no explanations. Thanks. John Cowan http://vrici.lojban.org/~cowan cowan@ccil.org There are books that are at once excellent and boring. Those that at once leap to the mind are Thoreau's Walden, Emerson's Essays, George Eliot's Adam Bede, and Landor's Dialogues. --Somerset Maugham --0000000000009c594005aad2abb3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Sun, Jul 19, 2020 at 4:43 PM Paul Winalski <paul.winalski@gmail.com> wrote:

And the PL/I and COBOL
compilers were implementing packed decimal using decimal shadowing.

What is decimal shadowing?=C2= =A0 I see a few references to the term on line, but no explanations.=C2=A0 = Thanks.



John Cowan =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0http:= //vrici.lojban.org/~cowan =C2=A0 =C2=A0 =C2=A0 =C2=A0cowan@ccil.org
There are books that are at once exce= llent and boring.=C2=A0 Those that at
once leap to the mind are Thoreau&= #39;s Walden, Emerson's Essays, George
Eliot's Adam Bede, a= nd Landor's Dialogues. =C2=A0--Somerset Maugham
=C2=A0
<= /div>
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