From pjohansson@u-tokyo.ac.jp Sat Dec 07 13:15:28 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!u-tokyo!pjohansson From: pjohansson@u-tokyo.ac.jp (Pavel Johansson) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec07.131528.8241@u-tokyo.ac.jp> Date: Sat, 07 Dec 1996 13:15:28 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 10 Hardware disassembly report for Motorola hardware hackers. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. 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. -- Pavel Johansson -- University of Tokyo Department of Information Science "Row 14. No joke." From ekang@pipeline.com Sun Dec 08 19:58:28 1996 Path: ashpoly!cascade!brgate!saturno!pipeline!ekang From: ekang@pipeline.com (Elaine Kang) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec08.195828.3327@pipeline.com> Date: Sun, 08 Dec 1996 19:58:28 GMT References: <1996Dec07.131528.8241@u-tokyo.ac.jp> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Dec07.131528.8241@u-tokyo.ac.jp>, pjohansson@u-tokyo.ac.jp (Pavel Johansson) writes: > Hardware disassembly report for Motorola hardware hackers. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Elaine Kang Opinions expressed are solely my own and not those of The Pipeline Internet Network. ------------------------------------------------------------ From dvasiliev@illinois.edu Mon Dec 09 06:21:28 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!dvasiliev From: dvasiliev@illinois.edu (Dmitri Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec09.062128.2649@illinois.edu> Date: Mon, 09 Dec 1996 06:21:28 GMT References: <1996Dec07.131528.8241@u-tokyo.ac.jp> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1996Dec07.131528.8241@u-tokyo.ac.jp>, pjohansson@u-tokyo.ac.jp (Pavel Johansson) writes: > Hardware disassembly report for Motorola hardware hackers. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Dmitri Vasiliev | dvasiliev@illinois.edu PGP Key fingerprint: 9C2F F553 7B61 515C "Keep the channels open." From rlindqvist@mit.edu Mon Dec 09 13:02:28 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!rlindqvist From: rlindqvist@mit.edu (Rodrigo Lindqvist) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec09.130228.4189@mit.edu> Date: Mon, 09 Dec 1996 13:02:28 GMT References: <1996Dec07.131528.8241@u-tokyo.ac.jp> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Dec07.131528.8241@u-tokyo.ac.jp>, pjohansson@u-tokyo.ac.jp (Pavel Johansson) writes: > Hardware disassembly report for Motorola hardware hackers. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Rodrigo Lindqvist Practical Peripherals 14.4 @ 33,600 bps "A soul is not exclusive to biology."