Return-Path: Delivered-To: craig@sbc-85.com Received: from gator4254.hostgator.com by gator4254.hostgator.com with LMTP id kHDbMtXzU2SasgkAcizydQ (envelope-from ) for ; Thu, 04 May 2023 13:05:09 -0500 Return-path: Envelope-to: craig@sbc-85.com Delivery-date: Thu, 04 May 2023 13:05:09 -0500 Received: from mail.cafes.net ([173.166.240.211]:37405) by gator4254.hostgator.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pudKH-002kud-H2 for craig@sbc-85.com; Thu, 04 May 2023 13:05:09 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.cafes.net (Postfix) with ESMTP id C5F5422221A for ; Thu, 4 May 2023 13:04:58 -0500 (CDT) X-Virus-Scanned: Debian amavisd-new at mail.cafes.net X-Spam-Flag: NO X-Spam-Score: -0.469 X-Spam-Level: X-Spam-Status: No, score=-0.469 tagged_above=-99 required=6 tests=[ALL_TRUSTED=-1, AWL=0.270, BAYES_20=-0.1, HTML_MESSAGE=0.001, LOCAL_OUR_DOMAIN_IN_URL=0.1, LOCAL_alpha_junk_x4=0.3, LOCAL_str8_sub_alerts=0.1, LOCAL_tvs_has_bold=0.01, fake_news_line_only_spaces=0.05, from_domain_neg=-0.2] autolearn=no autolearn_force=no Received: from mail.cafes.net ([127.0.0.1]) by localhost (mail.cafes.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VKS_K1KO7k8d for ; Thu, 4 May 2023 13:04:57 -0500 (CDT) Received: from GigaMike (unknown [75.105.236.10]) (Authenticated sender: msappington@cafes.net) by mail.cafes.net (Postfix) with ESMTPA id 366D22221D3 for ; Thu, 4 May 2023 13:04:54 -0500 (CDT) From: "Mike Sappington" To: "'SBC-85'" References: <00e201d97e2a$43532930$c9f97b90$@net> <97E27778-C090-4DD5-B1BB-8E1EC39B0A61@sbc-85.com> In-Reply-To: <97E27778-C090-4DD5-B1BB-8E1EC39B0A61@sbc-85.com> Subject: RE: Memory Schematics 1 of 3 more Date: Thu, 4 May 2023 13:04:51 -0500 Message-ID: <015201d97eb2$eff0e280$cfd2a780$@net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0153_01D97E89.071ADA80" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Adl+N8eHL4oHCJ9USjezL2rvZxtwXgAdFF6g Content-Language: en-us X-Spam-Status: No, score=-0.5 X-Spam-Score: -4 X-Spam-Bar: / X-Spam-Flag: NO This is a multi-part message in MIME format. ------=_NextPart_000_0153_01D97E89.071ADA80 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Craig You=E2=80=99re welcome. When I hired in with Johnson Controls Inc. in the early 80=E2=80=99s = they had three projects going that used the terminals. Two waste = treatments plants and an I&C contract for the USAF ASTF (Aeropropulsion = Systems Test Facility). Part of that last project was being written utilizing the internal = processing capability of the 8001. This documentation was part of my = involvement in that project. I also copied the source code for the 8001 = that we had. This allowed what follows. I created a configuration where the test 8001 was in half-duplex, sent = keystrokes to a CP/M development system. The development system ran the = O/S, a chunk of the ISC code and the internal ISC software being = developed. The simulation code then sent the resultant character code to = the displaying device. This freed us from burning EPROMs until much = later in the cycle, shortening the development cycle. As for emulation. I have an H19 and an=20 Z90. The H19 supports a couple of old systems that require a terminal. = Should I develop the inspiration to fix the real-estate issue of the = H19, a Raspberry Pi could emulate a wealth of terminals all being = displayed on a modern HDMI/DVI/DP monitor. I always liked the 48-line = 8001 for coding using a yellow character on a blue background. That=E2=80=99s my story, what=E2=80=99s yours? Mike P.S. OK, I just went to SBC-85 and see software by Craig Andrews. That = be you? P.P.S. I see we share similar interests. I=E2=80=99ve got a vintage = Ampro SBC riding on top of a pair of 5.25=E2=80=9D floppies. Also have = an Osborne Exec and an Imsai 8080 and more antique and obsolete stuff. P.P.P.S. I=E2=80=99ve got a 3870 piggy back chip. Have you got a PCB for = sale? =20 From: SBC-85 [mailto:craig@sbc-85.com]=20 Sent: Wednesday, May 3, 2023 10:23 PM To: Mike Sappington Subject: Re: Memory Schematics 1 of 3 more =20 Hi Mike, Yes, this is the one that I have, thank you. Where did you come across = this documentation? You have original paper copies? Are you planning on = writing an emulator? =20 Regards Craig On May 3, 2023, at 6:46 PM, Mike Sappington = wrote: =EF=BB=BF Craig =20 I think this is the one you really want. =20 The rest following. =20 Mike <100081r1.jpg> ------=_NextPart_000_0153_01D97E89.071ADA80 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Craig

You=E2=80=99re = welcome.

When I hired in with Johnson Controls Inc. in = the early 80=E2=80=99s they had three projects going that used the = terminals. Two waste treatments plants and an I&C contract for the = USAF ASTF (Aeropropulsion =C2=A0Systems Test = Facility).

Part of that last project was being written = utilizing the internal processing capability of the 8001. This = documentation was part of my involvement in that project. I also copied = the source code for the 8001 that we had. This allowed what = follows.

I created a configuration where the test 8001 = was in half-duplex, sent keystrokes to a CP/M development system. The = development system ran the O/S, a chunk of the ISC code and the internal = ISC software being developed. The simulation code then sent the = resultant character code to the displaying device. This freed us from = burning EPROMs until much later in the cycle, shortening the development = cycle.

As for emulation. I have an H19 and an =

Z90. The H19 supports a couple of old systems = that require a terminal. Should I develop the inspiration to fix the = real-estate issue of the H19, a Raspberry Pi could emulate a wealth of = terminals all being displayed on a modern HDMI/DVI/DP monitor. I always = liked the 48-line 8001 for coding using a yellow character on a blue = background.

That=E2=80=99s my story, what=E2=80=99s = yours?

Mike

P.S. OK, I just went to = SBC-85 and see software by Craig Andrews. That be = you?

P.P.S. I see we share similar interests. = I=E2=80=99ve got a vintage Ampro SBC riding on top of a pair of = 5.25=E2=80=9D floppies. Also have an Osborne Exec and an Imsai 8080 and = more antique and obsolete stuff.

P.P.P.S. I=E2=80=99ve = got a 3870 piggy back chip. Have you got a PCB for = sale?

 

From:= = SBC-85 [mailto:craig@sbc-85.com]
Sent: Wednesday, May 3, 2023 = 10:23 PM
To: Mike Sappington
Subject: Re: Memory = Schematics 1 of 3 more

 

Hi = Mike,

Yes, this is the one = that I have, thank you.  Where did you come across this = documentation? You have original paper copies?  Are you planning on = writing an emulator?

 

Regards

Craig



On May 3, 2023, at 6:46 PM, Mike = Sappington <msappington@cafes.net> = wrote:

=EF=BB=BF

Craig

 

I think this = is the one you really want.

 

The rest = following.

 

Mike

<100081r1.jpg>

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