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, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 23310 invoked from network); 3 Feb 2021 10:14:08 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 3 Feb 2021 10:14:08 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 27B3E9C094; Wed, 3 Feb 2021 20:14:05 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id EBACA9BA45; Wed, 3 Feb 2021 20:13:26 +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="rTdg3HMG"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 071609BA43; Wed, 3 Feb 2021 20:13:23 +1000 (AEST) Received: from mail-qk1-f177.google.com (mail-qk1-f177.google.com [209.85.222.177]) by minnie.tuhs.org (Postfix) with ESMTPS id 590419BA40 for ; Wed, 3 Feb 2021 20:13:22 +1000 (AEST) Received: by mail-qk1-f177.google.com with SMTP id a12so22760798qkh.10 for ; Wed, 03 Feb 2021 02:13:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=MtKDx7nL5SWb1p3dSBZCDMWNycubVzBIy0asJq3GYBQ=; b=rTdg3HMGjtIXtZrQRHpSXo3Y/8glGvQgNsd0N8ghNOZGXugFkjkDD02sEas8MqgUM3 upRWa46uQ/NP0Y0R54zplMNd0XgKgvsFwWC2BSm9XOjypmSPv8GJh9w+uLk2XQm6aZCO SXsyl/3YbRqSoaXOxxOnpTvfez3wY6Y2lEzMmI8qRXOQyHhWjFPmmzUcWspQJHSiUqMS nNUYMVmrxyhEv4qh48JOexZfcdtLfvZ3eDYo70xZdweVK9Hh2MO4VNM39AAiS1LoQ5FH 850Imw/sBekuWgTapbQQAKnmgNcSLxHS3j4VAs8DkmcV61uSjWXPmKr+Fm9ufnnTVVu6 W9OA== 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=MtKDx7nL5SWb1p3dSBZCDMWNycubVzBIy0asJq3GYBQ=; b=VHHqB1eTDPEh5jePqIm0DrgwbfYbx4p2ZFPHj/MgoyN5PeeNBqr5cM9/35+NdTmZd3 g8juthMbmzFTZnXTUt3p3tCTDDdoXMsFNZqxzy36QfddJn0V/8FDQoa84xHkXoYf3MJU TdHuyOSPZ8+EiuGP/QWYebYBHFmfT/UVwX0bDkvrnKBAbxxyv0CtHzF/hRm2i0TscKuw jDabFyiCzyXxwmj0pSOSPhmNADlbHivlJiDdr4BfAxu5dP95fXTjx46NuQ1m2jAy/cO/ dAvutjbxXR5UAoAkECuscVq5ceSZfZHX55X4MOjsaFxGAI3YWpl61DyhShRStq2PxYs8 OThA== X-Gm-Message-State: AOAM531mapiHgT8ruL6hsYByL6GK/kH5y4kM0SFWmcHn/n3xENXarwN/ lfyY4opllmkA0AR68QUOHhAiMUtiaEpxX+ALTVlIS490sR8= X-Google-Smtp-Source: ABdhPJzIiStVOshKrYNYoyoQsEq2cMo2E+KZq1sln/grxDLITXCYcpWSG4yn5cPiYYYKyonBnRNE2alAXfi6Ow3DMjM= X-Received: by 2002:a37:7ac3:: with SMTP id v186mr1698005qkc.211.1612347201395; Wed, 03 Feb 2021 02:13:21 -0800 (PST) MIME-Version: 1.0 References: <202102030759.1137x7C2013543@freefriends.org> <202102030858.1138wuqd011051@freefriends.org> In-Reply-To: <202102030858.1138wuqd011051@freefriends.org> From: Ed Bradford Date: Wed, 3 Feb 2021 04:13:09 -0600 Message-ID: To: arnold@skeeve.com Content-Type: multipart/alternative; boundary="000000000000319f0f05ba6bd612" Subject: Re: [TUHS] AT&T 3B1 - Emulation available 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: UNIX Heritage Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --000000000000319f0f05ba6bd612 Content-Type: text/plain; charset="UTF-8" Hay, Arnold, MC 68K was created in 1980 or thereabouts. We talked about 10's of Megahertz, I think, in those times. I was involved (slightly) with the Zilog Z80,000 which would have competed with the 68K, NS32K and the Intel 80386. Of the instruction sets (architectures) I was most happy with, the Zilog 32-bit processor architecture was to me, the most minimalist and thorough. At the time, I managed software development for the Zilog company's Z8000 computers. It was a fun era. I bought a z8000 system and developed a CRAY simulator on it when I left Zilog and went to work for American Supercomputer Company (another interesting Silicon Valley story). The 1980's were a very interesting time in Silicon Valley. One of the saddest stories I recall is when "Eagle Computer" went public. The CEO died on the IPO day after he had become a very rich person when he crashed a Ferrari during a test drive. Eagle Computer died with the CEO. Ed On Wed, Feb 3, 2021 at 2:59 AM wrote: > The 3B1 had an MC 68010. I don't truly remember how fast the real > system ran. The emulated system seems to run more or less the same as > the hardware did, taking my poor memory into account. > > The 5620 used the same processor as the 3B2, IIRC. There are emulators > for both (maybe done by the same guy, I don't remember). I don't know > of emulators for the 3B5 or 3B20. > > Arnold > > Ed Bradford wrote: > > > It seems to me today's 2GHz processors should be able to emulate a 3B > (*3B > > or not 3B, that is the question*) at a performance that far exceeds an > > actual 3B. Is the instruction set definition and architecture of a 3B > > available anywhere? > > > > Just wondering. I did such emulations for 68K machines and Cray machines. > > > > Ed Bradford ex-BTL, ex Silcon Valley, and ex IBM retiree. > > > > > > On Wed, Feb 3, 2021 at 2:00 AM wrote: > > > > > emanuel stiebler wrote: > > > > > > > On 2021-01-29 05:49, Arnold Robbins wrote: > > > > > Hello All. > > > > > > > > > > I have made a pre-installed disk image available with a fair amount > > > > > of software, see https://www.skeeve.com/3b1/. > > > > > > > > Thanks for doing & making the disk images, was an easy start! > > > > > > You're welcome. It's a fun side project. I think I finally get the > > > enjoyment of retrocomputing with emulated versions of systems one > > > used in one's youth. :-) > > > > > > > Do you remember, ho to set up the system to have four disk drives? > > > > > > > > Cheers & thanks again! > > > > > > I don't think it can support more than 2 drives. Certainly the emulator > > > cannot. I don't know about real hardware. > > > > > > You can split a big drive into partitions when formatting with the > > > diagnostics disk, but I don't think that's what you're asking. > > > > > > Sorry, > > > > > > Arnold > > > > > > > > > -- > > Advice is judged by results, not by intentions. > > Cicero > -- Advice is judged by results, not by intentions. Cicero --000000000000319f0f05ba6bd612 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hay, Arnold,

MC 68K was created in 1980 or thereabouts.= We talked about 10's
of Megahertz, I think, in=C2=A0those=C2=A0times.= I was involved (slightly) with the Zilog Z80,000 which would have competed= with the 68K, NS32K and the Intel 80386. Of the instruction sets (architec= tures) I was most happy with, the Zilog 32-bit processor architecture was t= o me, the most minimalist and thorough. At the time, I managed software dev= elopment for the Zilog company's Z8000 computers. It was a fun era. I b= ought a z8000 system and developed a CRAY simulator on it when I left Zilog= and went to work for American Supercomputer Company (another interesting S= ilicon Valley story).

The 1980's were a very interesting=C2=A0ti= me in Silicon=C2=A0Valley.

One of the saddest=C2=A0stories I recall = is when "Eagle Computer" went public. The CEO died on the=C2=A0IP= O day after he had become a very rich person when he crashed a Ferrari duri= ng a test drive. Eagle Computer died with the CEO.

Ed



On Wed, Feb 3, 2021 at 2:59 AM <= arnold@skeeve.com> wrote:
The 3B1 had an MC 68010.=C2=A0 I don't truly remember = how fast the real
system ran.=C2=A0 The emulated system seems to run more or less the same as=
the hardware did, taking my poor memory into account.

The 5620 used the same processor as the 3B2, IIRC. There are emulators
for both (maybe done by the same guy, I don't remember). I don't kn= ow
of emulators for the 3B5 or 3B20.

Arnold

Ed Bradford <egbe= gb2@gmail.com> wrote:

> It seems to me today's 2GHz processors should be able to emulate a= 3B (*3B
> or not 3B, that is the question*) at a performance that far exceeds an=
> actual 3B. Is the instruction set definition and architecture of a 3B<= br> > available anywhere?
>
> Just wondering. I did such emulations for 68K machines and Cray machin= es.
>
> Ed Bradford ex-BTL, ex Silcon Valley, and ex IBM retiree.
>
>
> On Wed, Feb 3, 2021 at 2:00 AM <arnold@skeeve.com> wrote:
>
> > emanuel stiebler <emu@e-bbes.com> wrote:
> >
> > > On 2021-01-29 05:49, Arnold Robbins wrote:
> > > > Hello All.
> > > >
> > > > I have made a pre-installed disk image available with a= fair amount
> > > > of software, see https://www.skeeve.com/3b1/.
> > >
> > > Thanks for doing & making the disk images, was an easy s= tart!
> >
> > You're welcome. It's a fun side project. I think I finall= y get the
> > enjoyment of retrocomputing with emulated versions of systems one=
> > used in one's youth. :-)
> >
> > > Do you remember, ho to set up the system to have four disk d= rives?
> > >
> > > Cheers & thanks again!
> >
> > I don't think it can support more than 2 drives. Certainly th= e emulator
> > cannot. I don't know about real hardware.
> >
> > You can split a big drive into partitions when formatting with th= e
> > diagnostics disk, but I don't think that's what you'r= e asking.
> >
> > Sorry,
> >
> > Arnold
> >
>
>
> --
> Advice is judged by results, not by intentions.
>=C2=A0 =C2=A0Cicero


--
=
Advice is judged by results, not by in= tentions.
=C2=A0 Cicero

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