From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,HTML_FONT_LOW_CONTRAST, HTML_IMAGE_ONLY_28,HTML_MESSAGE,MAILING_LIST_MULTI, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.4 Received: from minnie.tuhs.org (minnie.tuhs.org [50.116.15.146]) by inbox.vuxu.org (Postfix) with ESMTP id 17EA62A8F5 for ; Wed, 13 Mar 2024 15:38:30 +0100 (CET) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 0804D427D6; Thu, 14 Mar 2024 00:38:19 +1000 (AEST) Received: from mail-vk1-xa36.google.com (mail-vk1-xa36.google.com [IPv6:2607:f8b0:4864:20::a36]) by minnie.tuhs.org (Postfix) with ESMTPS id 28040427AB for ; Thu, 14 Mar 2024 00:38:07 +1000 (AEST) Received: by mail-vk1-xa36.google.com with SMTP id 71dfb90a1353d-4d41e2006c6so197633e0c.1 for ; Wed, 13 Mar 2024 07:38:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ccc.com; s=google; t=1710340686; x=1710945486; darn=tuhs.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=q4yERtu7PN3CwS4N8lufnf/0sT1b9fKLKDEFUJub61U=; b=ZhUS6jSY5AVYPXavj+hozrIxsA1vTk4McwYjOOXUHwqdB56XpvRNZ8phAoWZucFj5A wqYgaqjU8t8et+qfHc7HPvtzEzKpmgF3D4l8PhUSRuCL0Bymb0w9b2iXHc5TqSQX/I40 B1DI3iYAEHrBMn5Qa21QxQR647l4WJPBkbiC4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710340686; x=1710945486; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=q4yERtu7PN3CwS4N8lufnf/0sT1b9fKLKDEFUJub61U=; b=dyZivCV7vNEMLCsD7EEq94NuK+RcVdNo2rLafr3dQWwhtYsNOvS9DU1QaeEWgHwQbR jZSsDGjLy6aIn92sZbmlO+SaTWSfOwxhlFbUK5Ic+KaDIhxMRWmxZs8k+1dQtVwphUQf yRGJ+x6rcyr1caXbRyk/35n4NTgcmKlgknbkyqBFtU5H/KIi0NrFHI8B0tKzPBIVTk1R Lv1y6exarHk9d2/d8ZNIlf21gdQejrF7Xsqu7GEpuq9TnUssN8UarYWo5OLaSupt2Bqm 2xvfh3Zjuu8HTxmAPtRZ2hgC6eCG3r5KJUc95oq0uh25Iuy9mICVKSJ9Nun2Lt5doxKs MI4A== X-Forwarded-Encrypted: i=1; AJvYcCVAjQIEnHchvnUyMONK+4Drx8BfV+D/3qZRhb8g6WOVEty8k4e3Bos+Fv/WWGo5/ifL63aLLeNhkFgagsuf X-Gm-Message-State: AOJu0YzLeAJoeQUsVLcbAt1Ctjf7Fe3HaCqB8ad+Vx1IwdwmkfgG4K2Z 8eVwnij2iQUVnKpMuqif0yCfkS4IFD/Z7ikGHzWE2w6nudhIo9cQBt+fb1o6P2r+cNZUkTq+nnv xFpJXDCm7gehYLppJrZxH6U0HB3SBIHbhJkfq X-Google-Smtp-Source: AGHT+IEwlbmEBzt9dChU3e+ZQypk3G3r3m09d7QuKGMmwHduu/S34BEDutRKQX9oqKdakgpurf0BAzp66jBKUm1Xbv8= X-Received: by 2002:a05:6122:124d:b0:4d3:43f8:8541 with SMTP id b13-20020a056122124d00b004d343f88541mr158138vkp.1.1710340685468; Wed, 13 Mar 2024 07:38:05 -0700 (PDT) MIME-Version: 1.0 References: <12CFE503-ACC8-44B5-BA41-28DB5450E521@planet.nl> In-Reply-To: From: Clem Cole Date: Wed, 13 Mar 2024 10:37:28 -0400 Message-ID: To: Marc Rochkind Content-Type: multipart/alternative; boundary="00000000000000b4db06138bb97d" Message-ID-Hash: W5267IYMUW6PBOXOYKJJ6DRIDZCUNCEE X-Message-ID-Hash: W5267IYMUW6PBOXOYKJJ6DRIDZCUNCEE X-MailFrom: clemc@ccc.com 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 CC: "tuhs@tuhs.org" X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: History of non-Bell C compilers? List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --00000000000000b4db06138bb97d Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable @Marc On Tue, Mar 12, 2024 at 1:18=E2=80=AFPM Marc Rochkind = wrote: > At a trade show, I bought a utility that allowed me to run PC-DOS under > PC/IX. I'm sure it wasn't a virtual machine. Rather, it just swapped back > and forth. (Guessing a bit there.) > Hmm ... you sure it was not either VPIX or DOS/Merge -- ISC built VPIX in cooperation with the Phoenix Tech folks for PC/IX. I always bought a copy with it, but it may have been an option. LCC did DOS/Merge originally as part of the AIX work for IBM and would become a core part of OS/2 Warp IIRC. Both Merge and VPIX had some rough edges but certainly worked fine for DOS 3.3 programs. The issue tended to be Win and DOS graphics-based programs/games that played fast and loose, bypassing the DOS OS interface and accessing the HW directly. For instance, I never got the flight simulator (Air War over Germany) for Dad's WWII plane (P-47 Thunderbolt) to run under either (i.e., only under DOS directly on the HW. FWIW: In that mode, Dad said the simulator flew a lot like how he remembered it). Both Merge and VPIX used the 386 VM support and a bunch of work in the core OS. Heinz would have to fill us in here. The version of the 386 port ISC delivered to AT&T and Intel only had the kernel changes to allow the VM support for VPIX to be linked in, but it was not there. IICR (and I'm not sure I am) is that Merge could run on PC/IX also, but you had to replace a couple of kernel modules. It certainly would work on the AT&T and Intel versions. =E1=90=A7 --00000000000000b4db06138bb97d Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

<= div class=3D"gmail_quote">
On Tue, Mar= 12, 2024 at 1:18=E2=80=AFPM Marc Rochkind <mrochkind@gmail.com> wrote:
At a trade = show, I bought a utility that allowed me to run PC-DOS under PC/IX. I'm= sure it wasn't a virtual machine. Rather, it just swapped back and for= th. (Guessing a bit there.)
Hmm ... you sure it was not either VPIX or DOS/Merge -- ISC b= uilt VPIX in cooperation with the Phoenix Tech folks for PC/IX. I always=C2= =A0bought=C2=A0a copy with it, but it may have been an option.=C2=A0 =C2=A0= LCC did DOS/Merge originally as part of the AIX work for IBM and would beco= me a core part of OS/2 Warp IIRC.=C2=A0 Both Merge and VPIX had some rough = edges but certainly worked fine for DOS 3.3 programs.=C2=A0 The issue tende= d to be Win and DOS graphics-based programs/games that played fast and loos= e, bypassing the DOS OS interface and accessing the HW directly.=C2=A0 For = instance, I never got the flight simulator (Air War over Germany) for Dad&#= 39;s WWII plane (P-47 Thunderbolt) to run under either (i.e., only under D= OS directly on the HW. FWIW: In that mode, Dad said the simulator flew a = lot like how he remembered it).

Both Me= rge and VPIX used the 386 VM support and a bunch of work in the core OS.=C2= =A0 =C2=A0Heinz would have to fill us in here.=C2=A0 The version of the 386= port ISC delivered to AT&T and Intel only had the kernel changes to al= low the VM support for VPIX to be linked in, but it was not there.=C2=A0 = =C2=A0IICR (and I'm not sure I am) is that Merge could run on PC/IX als= o, but you had to replace a couple of kernel modules.=C2=A0 It certainly wo= uld work on the AT&T and Intel versions.
3D""=E1=90=A7
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