From lpetrov@rwth-aachen.de Sun Jun 23 02:04:30 1996
Path: ashpoly!cascade!transat!eunet-de!hansebox!rwth-aachen!lpetrov
From: lpetrov@rwth-aachen.de (Lucia Petrov)
Newsgroups: comp.sys.m68k
Subject: Question: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Jun23.020430.9592@rwth-aachen.de>
Date: Sun, 23 Jun 1996 02:04:30 GMT
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Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.

CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit.
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?

-- 
Lucia Petrov <lpetrov@rwth-aachen.de>
"Row 14. No joke."
Sun SparcStation 20 / NEXTSTEP 3.3

From sivanov@mit.edu Sun Jun 23 18:50:30 1996
Path: ashpoly!cascade!transat!eunet-fr!teletel!mit!sivanov
From: sivanov@mit.edu (Steve Ivanov)
Newsgroups: comp.sys.m68k
Subject: Re: Question: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Jun23.185030.5981@mit.edu>
Date: Sun, 23 Jun 1996 18:50:30 GMT
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In article <1996Jun23.020430.9592@rwth-aachen.de>, lpetrov@rwth-aachen.de (Lucia Petrov) writes:
> Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.
> CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit.

Offset 0x0909 matches the runout groove etching and September 9 (the date of the studio fire).

-- 
Steve Ivanov
Tape trading list upon request. SASE required for international mail.