From mivanov@purdue.edu Tue Jun 13 23:40:58 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!mivanov From: mivanov@purdue.edu (Marta Ivanov) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun13.234058.1432@purdue.edu> Date: Tue, 13 Jun 1995 23:40:58 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Marta Ivanov Tape trading list upon request. SASE required for international mail. From pgarcia@delphi.com Wed Jun 14 04:10:58 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!delphi!pgarcia From: pgarcia@delphi.com (Pavel García) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun14.041058.7417@delphi.com> Date: Wed, 14 Jun 1995 04:10:58 GMT References: <1995Jun13.234058.1432@purdue.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Jun13.234058.1432@purdue.edu>, mivanov@purdue.edu (Marta Ivanov) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Pavel García Opinions expressed are solely my own and not those of Delphi Internet Services. ------------------------------------------------------------ From trobertson@stanford.edu Thu Jun 15 13:26:58 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!stanford!trobertson From: trobertson@stanford.edu (Tomas Robertson) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun15.132658.9920@stanford.edu> Date: Thu, 15 Jun 1995 13:26:58 GMT References: <1995Jun13.234058.1432@purdue.edu> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1995Jun13.234058.1432@purdue.edu>, mivanov@purdue.edu (Marta Ivanov) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. > Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. If you are posting from AOL, please read RFC 1036 before posting again. -- Tomas Robertson US Robotics Courier V.34 @ 33,600 bps "Row 14. No joke." From fsmirnov@unam.mx Fri Jun 16 11:00:58 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!fsmirnov From: fsmirnov@unam.mx (Fiona Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun16.110058.1616@unam.mx> Date: Fri, 16 Jun 1995 11:00:58 GMT References: <1995Jun13.234058.1432@purdue.edu> <1995Jun14.041058.7417@delphi.com> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Jun14.041058.7417@delphi.com>, pgarcia@delphi.com (Pavel García) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Fiona Smirnov Tape trading list upon request. SASE required for international mail. From jokonkwo@kth.se Sat Jun 17 14:30:58 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!kth!jokonkwo From: jokonkwo@kth.se (Jens Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun17.143058.7326@kth.se> Date: Sat, 17 Jun 1995 14:30:58 GMT References: <1995Jun13.234058.1432@purdue.edu> <1995Jun14.041058.7417@delphi.com> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jun14.041058.7417@delphi.com>, pgarcia@delphi.com (Pavel García) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Jens Okonkwo Opinions expressed are solely my own and not those of Royal Institute of Technology, Stockholm. ------------------------------------------------------------