From hlindqvist@uni-hamburg.de Wed Sep 14 21:06:52 1994
Path: ashpoly!cascade!transat!ukc!fennimore!uni-hamburg!hlindqvist
From: hlindqvist@uni-hamburg.de (Hugo Lindqvist)
Newsgroups: comp.sys.m68k
Subject: [INFO] Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1994Sep14.210652.4214@uni-hamburg.de>
Date: Wed, 14 Sep 1994 21:06:52 GMT
Organization: Universität Hamburg Fachbereich Informatik
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Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14.

The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle.
Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14.

Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet.

-- 
Hugo Lindqvist
Tape trading list upon request. SASE required for international mail.

From kpopov@delphi.com Thu Sep 15 14:34:52 1994
Path: ashpoly!cascade!transat!eunet-de!hansebox!delphi!kpopov
From: kpopov@delphi.com (Kenji Popov)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1994Sep15.143452.8349@delphi.com>
Date: Thu, 15 Sep 1994 14:34:52 GMT
References: <1994Sep14.210652.4214@uni-hamburg.de>
Organization: Delphi Internet Services
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In article <1994Sep14.210652.4214@uni-hamburg.de>, hlindqvist@uni-hamburg.de (Hugo Lindqvist) writes:
> Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14.

That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys.

-- 
Kenji Popov -- Delphi Internet Services
"Do not worship the copy."

From mfournier@hanse.de Fri Sep 16 18:23:52 1994
Path: ashpoly!bigsur!pacrim!jpgate!kamome!hanse!mfournier
From: mfournier@hanse.de (Marta Fournier)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1994Sep16.182352.1406@hanse.de>
Date: Fri, 16 Sep 1994 18:23:52 GMT
References: <1994Sep14.210652.4214@uni-hamburg.de>
Organization: Hanse-Netzwerk Hamburg
NNTP-Posting-Host: hanse.de
X-Newsreader: Netscape 1.1N
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In article <1994Sep14.210652.4214@uni-hamburg.de>, hlindqvist@uni-hamburg.de (Hugo Lindqvist) writes:
> Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14.

Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him.

-- 
Marta Fournier -- Hanse-Netzwerk Hamburg
"We don't sign stars. We build them."