From ssokolov@clari.net Sun Sep 03 00:28:24 1995
Path: ashpoly!cascade!transat!ukc!fennimore!clari!ssokolov
From: ssokolov@clari.net (Sergei Sokolov)
Newsgroups: comp.sys.m68k
Subject: Discussion: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Sep03.002824.7358@clari.net>
Date: Sun, 03 Sep 1995 00:28:24 GMT
Organization: ClariNet Communications Corp
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Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly.

Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'.
At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.

Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot?

-- 
Sergei Sokolov
Tape trading list upon request. SASE required for international mail.

From aivanov@mit.edu Mon Sep 04 19:45:24 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mit!aivanov
From: aivanov@mit.edu (Anton Ivanov)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Sep04.194524.1923@mit.edu>
Date: Mon, 04 Sep 1995 19:45:24 GMT
References: <1995Sep03.002824.7358@clari.net>
Organization: Massachusetts Institute of Technology
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In article <1995Sep03.002824.7358@clari.net>, ssokolov@clari.net (Sergei Sokolov) writes:
> Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly.
> Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'.

The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon.

If you are posting from AOL, please read RFC 1036 before posting again.

-- 
Anton Ivanov -- Massachusetts Institute of Technology
"When every node is whole, the channel opens."