From bkowalski@tum.de Sat Dec 14 02:56:10 1996 Path: ashpoly!cascade!bigsur!tum!bkowalski From: bkowalski@tum.de (Brian Kowalski) Newsgroups: comp.sys.m68k Subject: Question: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec14.025610.8472@tum.de> Date: Sat, 14 Dec 1996 02:56:10 GMT Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 11 Hardware disassembly report for Motorola hardware hackers. 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. Did Marcus take the decryption EPROM with him when he left the lab? -- Brian Kowalski Opinions expressed are solely my own and not those of Technische Universität München. ------------------------------------------------------------ From coliveira@illinois.edu Sat Dec 14 10:00:10 1996 Path: ashpoly!cascade!transat!ukc!fennimore!illinois!coliveira From: coliveira@illinois.edu (Callum Oliveira) Newsgroups: comp.sys.m68k Subject: Re: Question: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec14.100010.1122@illinois.edu> Date: Sat, 14 Dec 1996 10:00:10 GMT References: <1996Dec14.025610.8472@tum.de> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Dec14.025610.8472@tum.de>, bkowalski@tum.de (Brian Kowalski) writes: > Hardware disassembly report for Motorola hardware hackers. > 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. -- Callum Oliveira *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0