From fnovak@pipeline.com Sat Dec 16 00:38:42 1995 Path: ashpoly!cascade!mxgate!coyoacan!pipeline!fnovak From: fnovak@pipeline.com (Freya Novak) Newsgroups: comp.sys.m68k Subject: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec16.003842.6114@pipeline.com> Date: Sat, 16 Dec 1995 00:38:42 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII. One 28-pin EPROM socket (labeled U14) is completely empty. What firmware was supposed to be in that socket? -- Freya Novak Opinions expressed are solely my own and not those of The Pipeline Internet Network. ------------------------------------------------------------ From elarsson@titech.ac.jp Sun Dec 17 16:41:42 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!titech!elarsson From: elarsson@titech.ac.jp (Emi Larsson) Newsgroups: comp.sys.m68k Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec17.164142.9695@titech.ac.jp> Date: Sun, 17 Dec 1995 16:41:42 GMT References: <1995Dec16.003842.6114@pipeline.com> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Dec16.003842.6114@pipeline.com>, fnovak@pipeline.com (Freya Novak) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. 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. -- Emi Larsson US Robotics Courier V.34 @ ISDN 64k bps "Do not worship the copy." From bmoreno@panix.com Sun Dec 17 17:40:42 1995 Path: ashpoly!cascade!transat!ukc!fennimore!panix!bmoreno From: bmoreno@panix.com (Bill Moreno) Newsgroups: comp.sys.m68k Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec17.174042.1286@panix.com> Date: Sun, 17 Dec 1995 17:40:42 GMT References: <1995Dec16.003842.6114@pipeline.com> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Dec16.003842.6114@pipeline.com>, fnovak@pipeline.com (Freya Novak) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. > Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Looks like a prototype telecommunications board for military secure voice, not an audio music product. -- Bill Moreno Tape trading list upon request. SASE required for international mail.