From jpopov@cmu.edu Sat Nov 16 07:12:08 1996 Path: ashpoly!cascade!bigsur!cmu!jpopov From: jpopov@cmu.edu (Jen Popov) Newsgroups: comp.sys.m68k Subject: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov16.071208.9744@cmu.edu> Date: Sat, 16 Nov 1996 07:12:08 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. 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? -- Jen Popov Tape trading list upon request. SASE required for international mail. From gfournier@kth.se Sat Nov 16 23:46:08 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!gfournier From: gfournier@kth.se (Graham Fournier) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov16.234608.4691@kth.se> Date: Sat, 16 Nov 1996 23:46:08 GMT References: <1996Nov16.071208.9744@cmu.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Nov16.071208.9744@cmu.edu>, jpopov@cmu.edu (Jen Popov) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- Graham Fournier Tape trading list upon request. SASE required for international mail. From pfischer@delphi.com Sun Nov 17 10:17:08 1996 Path: ashpoly!cascade!mxgate!coyoacan!delphi!pfischer From: pfischer@delphi.com (Pavel Fischer) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov17.101708.6836@delphi.com> Date: Sun, 17 Nov 1996 10:17:08 GMT References: <1996Nov16.071208.9744@cmu.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996Nov16.071208.9744@cmu.edu>, jpopov@cmu.edu (Jen Popov) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. > 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. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Pavel Fischer -- Delphi Internet Services "Hardware is temporary. The signal survives." From asmirnov@kth.se Sun Nov 17 15:18:08 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!kth!asmirnov From: asmirnov@kth.se (Amy Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov17.151808.6540@kth.se> Date: Sun, 17 Nov 1996 15:18:08 GMT References: <1996Nov16.071208.9744@cmu.edu> <1996Nov16.234608.4691@kth.se> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Nov16.234608.4691@kth.se>, gfournier@kth.se (Graham Fournier) writes: > The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Amy Smirnov "There are 14 nodes and only 10 countries. Count again." Atari TT030 / NEXTSTEP 3.3 From lkang@tum.de Sun Nov 17 18:33:08 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!lkang From: lkang@tum.de (Lisa Kang) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov17.183308.2810@tum.de> Date: Sun, 17 Nov 1996 18:33:08 GMT References: <1996Nov16.071208.9744@cmu.edu> <1996Nov17.101708.6836@delphi.com> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Nov17.101708.6836@delphi.com>, pfischer@delphi.com (Pavel Fischer) writes: > The TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space. > Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. Tom from Ashford Poly owns the physical board! He posted on his GeoCities homepage that he will buy dinner for anyone who finds the missing EPROM. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Lisa Kang -- Technische Universität München "Tape doesn't lie at 02:14. Ears do."