From mtanaka@illinois.edu Sat Feb 10 09:26:54 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!illinois!mtanaka From: mtanaka@illinois.edu (Mathieu Tanaka) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb10.092654.2104@illinois.edu> Date: Sat, 10 Feb 1996 09:26:54 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Mathieu Tanaka "Hold for relay." PC-9821Ap2 (NEC) / System 7.5.1 From jlee@uni-hamburg.de Mon Feb 12 08:28:54 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uni-hamburg!jlee From: jlee@uni-hamburg.de (Jen Lee) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb12.082854.9991@uni-hamburg.de> Date: Mon, 12 Feb 1996 08:28:54 GMT References: <1996Feb10.092654.2104@illinois.edu> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Feb10.092654.2104@illinois.edu>, mtanaka@illinois.edu (Mathieu Tanaka) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. > The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Jen Lee Opinions expressed are solely my own and not those of Universität Hamburg Fachbereich Informatik. ------------------------------------------------------------ From smoreau@illinois.edu Tue Feb 13 16:34:54 1996 Path: ashpoly!cascade!brgate!saturno!illinois!smoreau From: smoreau@illinois.edu (Steve Moreau) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb13.163454.3532@illinois.edu> Date: Tue, 13 Feb 1996 16:34:54 GMT References: <1996Feb10.092654.2104@illinois.edu> <1996Feb12.082854.9991@uni-hamburg.de> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Feb12.082854.9991@uni-hamburg.de>, jlee@uni-hamburg.de (Jen Lee) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Steve Moreau "The hatch is open. Is anyone listening?" Amiga 1200 (Blizzard 030/50) / Linux 1.2.13 From snakamura@u-tokyo.ac.jp Wed Feb 14 20:20:54 1996 Path: ashpoly!cascade!brgate!saturno!u-tokyo!snakamura From: snakamura@u-tokyo.ac.jp (Steve Nakamura) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb14.202054.2986@u-tokyo.ac.jp> Date: Wed, 14 Feb 1996 20:20:54 GMT References: <1996Feb10.092654.2104@illinois.edu> <1996Feb12.082854.9991@uni-hamburg.de> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996Feb12.082854.9991@uni-hamburg.de>, jlee@uni-hamburg.de (Jen Lee) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Steve Nakamura Tape trading list upon request. SASE required for international mail. From mtanaka@clari.net Thu Feb 15 14:44:54 1996 Path: ashpoly!cascade!bigsur!clari!mtanaka From: mtanaka@clari.net (Matthias Tanaka) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb15.144454.2317@clari.net> Date: Thu, 15 Feb 1996 14:44:54 GMT References: <1996Feb10.092654.2104@illinois.edu> <1996Feb12.082854.9991@uni-hamburg.de> <1996Feb14.202054.2986@u-tokyo.ac.jp> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Feb14.202054.2986@u-tokyo.ac.jp>, snakamura@u-tokyo.ac.jp (Steve Nakamura) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Matthias Tanaka "We don't sign stars. We build them." Mac IIci / 68882 FPU / NEXTSTEP 3.3