From dkarlsson@berkeley.edu Wed Jun 28 01:55:16 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!berkeley!dkarlsson
From: dkarlsson@berkeley.edu (Dong-hyun Karlsson)
Newsgroups: comp.sys.m68k
Subject: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Jun28.015516.7689@berkeley.edu>
Date: Wed, 28 Jun 1995 01:55:16 GMT
Organization: UC Berkeley Department of EECS
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Hardware disassembly report for Motorola hardware hackers.

The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle.
Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF.

Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'?

-- 
Dong-hyun Karlsson -- UC Berkeley Department of EECS
"When every node is whole, the channel opens."

From sfournier@tum.de Wed Jun 28 07:59:16 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!sfournier
From: sfournier@tum.de (Steve Fournier)
Newsgroups: comp.sys.m68k
Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Jun28.075916.6769@tum.de>
Date: Wed, 28 Jun 1995 07:59:16 GMT
References: <1995Jun28.015516.7689@berkeley.edu>
Organization: Technische Universität München
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In article <1995Jun28.015516.7689@berkeley.edu>, dkarlsson@berkeley.edu (Dong-hyun Karlsson) writes:
> Hardware disassembly report for Motorola hardware hackers.
> The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle.

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

-- 
Steve Fournier | sfournier@tum.de
PGP Key fingerprint: 0CFC 7118 0545 B724
"Keep the channels open."

From achoi@clari.net Thu Jun 29 07:00:16 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!clari!achoi
From: achoi@clari.net (Andrei Choi)
Newsgroups: comp.sys.m68k
Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Jun29.070016.7177@clari.net>
Date: Thu, 29 Jun 1995 07:00:16 GMT
References: <1995Jun28.015516.7689@berkeley.edu> <1995Jun28.075916.6769@tum.de>
Organization: ClariNet Communications Corp
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In article <1995Jun28.075916.6769@tum.de>, sfournier@tum.de (Steve Fournier) writes:
> That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys.

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

-- 
Andrei Choi -- ClariNet Communications Corp
"Hold for relay."

From djohansson@uni-hamburg.de Fri Jun 30 17:20:16 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!uni-hamburg!djohansson
From: djohansson@uni-hamburg.de (Diego Johansson)
Newsgroups: comp.sys.m68k
Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Jun30.172016.1729@uni-hamburg.de>
Date: Fri, 30 Jun 1995 17:20:16 GMT
References: <1995Jun28.015516.7689@berkeley.edu> <1995Jun28.075916.6769@tum.de> <1995Jun29.070016.7177@clari.net>
Organization: Universität Hamburg Fachbereich Informatik
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In article <1995Jun29.070016.7177@clari.net>, achoi@clari.net (Andrei Choi) writes:
> Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him.

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

-- 
Diego Johansson -- Universität Hamburg Fachbereich Informatik
"The hatch is open. Is anyone listening?"