From skarlsson@cmu.edu Wed Dec 06 23:51:56 1995 Path: ashpoly!cascade!brgate!saturno!cmu!skarlsson From: skarlsson@cmu.edu (Sergei Karlsson) Newsgroups: comp.sys.m68k Subject: Question: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec06.235156.4855@cmu.edu> Date: Wed, 06 Dec 1995 23:51:56 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.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? -- Sergei Karlsson *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From dramirez@titech.ac.jp Fri Dec 08 19:32:56 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!titech!dramirez From: dramirez@titech.ac.jp (Diego Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Question: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec08.193256.4711@titech.ac.jp> Date: Fri, 08 Dec 1995 19:32:56 GMT References: <1995Dec06.235156.4855@cmu.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Dec06.235156.4855@cmu.edu>, skarlsson@cmu.edu (Sergei Karlsson) 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. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Diego Ramírez Opinions expressed are solely my own and not those of Tokyo Institute of Technology Computer Centre. ------------------------------------------------------------