From tpopov@illinois.edu Mon Aug 21 10:37:18 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!tpopov From: tpopov@illinois.edu (Tyler Popov) Newsgroups: comp.sys.m68k Subject: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug21.103718.7205@illinois.edu> Date: Mon, 21 Aug 1995 10:37:18 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 10 Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Tyler Popov Tape trading list upon request. SASE required for international mail. From jmoreno@clari.net Tue Aug 22 03:43:18 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!clari!jmoreno From: jmoreno@clari.net (Joachim Moreno) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug22.034318.3552@clari.net> Date: Tue, 22 Aug 1995 03:43:18 GMT References: <1995Aug21.103718.7205@illinois.edu> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Aug21.103718.7205@illinois.edu>, tpopov@illinois.edu (Tyler Popov) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Joachim Moreno *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0 From htakahashi@clari.net Thu Aug 24 07:26:18 1995 Path: ashpoly!cascade!mxgate!coyoacan!clari!htakahashi From: htakahashi@clari.net (Hugo Takahashi) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug24.072618.2194@clari.net> Date: Thu, 24 Aug 1995 07:26:18 GMT References: <1995Aug21.103718.7205@illinois.edu> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug21.103718.7205@illinois.edu>, tpopov@illinois.edu (Tyler Popov) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. > 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. -- Hugo Takahashi Tape trading list upon request. SASE required for international mail.