From ilaurent@illinois.edu Sat Jan 15 07:00:02 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!illinois!ilaurent From: ilaurent@illinois.edu (Ines Laurent) Newsgroups: comp.sys.m68k Subject: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Jan15.070002.8136@illinois.edu> Date: Sat, 15 Jan 1994 07:00:02 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- Ines Laurent | ilaurent@illinois.edu PGP Key fingerprint: D492 37B1 D04D 248A "Keep the channels open." From bpetrov@clari.net Sun Jan 16 18:46:02 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!clari!bpetrov From: bpetrov@clari.net (Bruno Petrov) Newsgroups: comp.sys.m68k Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Jan16.184602.8173@clari.net> Date: Sun, 16 Jan 1994 18:46:02 GMT References: <1994Jan15.070002.8136@illinois.edu> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Jan15.070002.8136@illinois.edu>, ilaurent@illinois.edu (Ines Laurent) writes: > Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. > At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII. The TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space. -- === Bruno Petrov === Dept of Electrical Engineering, ClariNet Communications Corp "When every node is whole, the channel opens." From rgarcia@earthlink.net Tue Jan 18 00:24:02 1994 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!rgarcia From: rgarcia@earthlink.net (Raj García) Newsgroups: comp.sys.m68k Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Jan18.002402.8026@earthlink.net> Date: Tue, 18 Jan 1994 00:24:02 GMT References: <1994Jan15.070002.8136@illinois.edu> <1994Jan16.184602.8173@clari.net> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jan16.184602.8173@clari.net>, bpetrov@clari.net (Bruno Petrov) writes: > The TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Raj García "We don't sign stars. We build them." Commodore Amiga 500 (1MB OCS) / AmigaOS 3.1