From tsmirnov@inria.fr Sat Nov 12 13:14:56 1994
Path: ashpoly!bigsur!pacrim!jpgate!kamome!inria!tsmirnov
From: tsmirnov@inria.fr (Tomas Smirnov)
Newsgroups: comp.sys.m68k
Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1994Nov12.131456.3261@inria.fr>
Date: Sat, 12 Nov 1994 13:14:56 GMT
Organization: INRIA Rocquencourt
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Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board.

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.

Did Marcus take the decryption EPROM with him when he left the lab?

-- 
Tomas Smirnov <tsmirnov@inria.fr>
*PLONK* filter active for trolls.
Mac IIci / 68882 FPU - NetBSD 1.0

From tchoi@rwth-aachen.de Sun Nov 13 00:54:56 1994
Path: ashpoly!cascade!bigsur!rwth-aachen!tchoi
From: tchoi@rwth-aachen.de (Thiago Choi)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1994Nov13.005456.6352@rwth-aachen.de>
Date: Sun, 13 Nov 1994 00:54:56 GMT
References: <1994Nov12.131456.3261@inria.fr>
Organization: RWTH Aachen Informatik
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In article <1994Nov12.131456.3261@inria.fr>, tsmirnov@inria.fr (Tomas Smirnov) writes:
> Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board.

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

-- 
=== Thiago Choi ===
Dept of Electrical Engineering, RWTH Aachen Informatik
"In theory there is no difference between theory and practice."