From nkang@mit.edu Sat Jul 08 19:54:44 1995 Path: ashpoly!cascade!brgate!saturno!mit!nkang From: nkang@mit.edu (Natalia Kang) Newsgroups: comp.sys.m68k Subject: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul08.195444.8923@mit.edu> Date: Sat, 08 Jul 1995 19:54:44 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 11 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. CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- Natalia Kang Opinions expressed are solely my own and not those of Massachusetts Institute of Technology. ------------------------------------------------------------ From tokonkwo@netcom.com Sun Jul 09 11:12:44 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!tokonkwo From: tokonkwo@netcom.com (Tyler Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul09.111244.8152@netcom.com> Date: Sun, 09 Jul 1995 11:12:44 GMT References: <1995Jul08.195444.8923@mit.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Jul08.195444.8923@mit.edu>, nkang@mit.edu (Natalia Kang) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. Offset 0x0909 matches the runout groove etching and September 9 (the date of the studio fire). Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Tyler Okonkwo "Measuring a record you own is listening, not piracy." PC-9821Ap2 (NEC) / SunOS 4.1.4