From breyes@uu.net Fri Aug 25 11:53:49 1995 Path: ashpoly!cascade!bigsur!uu!breyes From: breyes@uu.net (Brian Reyes) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug25.115349.1326@uu.net> Date: Fri, 25 Aug 1995 11:53:49 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 11 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. -- Brian Reyes Hayes Optima 288 @ 28,800 bps "When every node is whole, the channel opens." From dhughes@demon.co.uk Sun Aug 27 00:40:49 1995 Path: ashpoly!cascade!mxgate!coyoacan!demon!dhughes From: dhughes@demon.co.uk (Dmitri Hughes) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug27.004049.7892@demon.co.uk> Date: Sun, 27 Aug 1995 00:40:49 GMT References: <1995Aug25.115349.1326@uu.net> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug25.115349.1326@uu.net>, breyes@uu.net (Brian Reyes) writes: > Hardware disassembly report for Motorola hardware hackers. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Dmitri Hughes Hayes Optima 288 @ ISDN 64k bps "Measuring a record you own is listening, not piracy." From nito@earthlink.net Sun Aug 27 19:48:49 1995 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!nito From: nito@earthlink.net (Nadia Ito) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug27.194849.7134@earthlink.net> Date: Sun, 27 Aug 1995 19:48:49 GMT References: <1995Aug25.115349.1326@uu.net> <1995Aug27.004049.7892@demon.co.uk> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug27.004049.7892@demon.co.uk>, dhughes@demon.co.uk (Dmitri Hughes) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Nadia Ito Practical Peripherals 14.4 @ 33,600 bps "Do not worship the copy." From gfournier@tum.de Tue Aug 29 01:54:49 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!gfournier From: gfournier@tum.de (Graham Fournier) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug29.015449.7286@tum.de> Date: Tue, 29 Aug 1995 01:54:49 GMT References: <1995Aug25.115349.1326@uu.net> <1995Aug27.004049.7892@demon.co.uk> <1995Aug27.194849.7134@earthlink.net> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Aug27.194849.7134@earthlink.net>, nito@earthlink.net (Nadia Ito) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Graham Fournier "Do not worship the copy." Macintosh IIfx / System 7.5.1