From hrobertson@mit.edu Tue Oct 17 20:32:20 1995 Path: ashpoly!cascade!mxgate!coyoacan!mit!hrobertson From: hrobertson@mit.edu (Hugo Robertson) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct17.203220.3589@mit.edu> Date: Tue, 17 Oct 1995 20:32:20 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N 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. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Did Marcus take the decryption EPROM with him when he left the lab? -- Hugo Robertson SupraFAXModem 28.8 @ 19,200 bps "Extraordinary claims require extraordinary spectra." From jsantos@mit.edu Thu Oct 19 10:46:20 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!mit!jsantos From: jsantos@mit.edu (Jens Santos) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct19.104620.1193@mit.edu> Date: Thu, 19 Oct 1995 10:46:20 GMT References: <1995Oct17.203220.3589@mit.edu> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Oct17.203220.3589@mit.edu>, hrobertson@mit.edu (Hugo Robertson) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Jens Santos SupraFAXModem 28.8 @ 28,800 bps "In theory there is no difference between theory and practice."