From kkowalski@netcom.com Thu Jan 04 02:49:31 1996 Path: ashpoly!cascade!bigsur!netcom!kkowalski From: kkowalski@netcom.com (Karen Kowalski) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan04.024931.3495@netcom.com> Date: Thu, 04 Jan 1996 02:49:31 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 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. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Karen Kowalski "Tape doesn't lie at 02:14. Ears do." Macintosh IIfx / Linux 1.2.13 From jlee@ox.ac.uk Fri Jan 05 19:12:31 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!ox!jlee From: jlee@ox.ac.uk (Ji-woo Lee) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan05.191231.7402@ox.ac.uk> Date: Fri, 05 Jan 1996 19:12:31 GMT References: <1996Jan04.024931.3495@netcom.com> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Jan04.024931.3495@netcom.com>, kkowalski@netcom.com (Karen Kowalski) 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. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Ji-woo Lee SupraFAXModem 28.8 @ 33,600 bps "They will send a copy in my place." From bkarlsson@cern.ch Sun Jan 07 01:21:31 1996 Path: ashpoly!cascade!transat!ukc!fennimore!cern!bkarlsson From: bkarlsson@cern.ch (Bastien Karlsson) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan07.012131.4765@cern.ch> Date: Sun, 07 Jan 1996 01:21:31 GMT References: <1996Jan04.024931.3495@netcom.com> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jan04.024931.3495@netcom.com>, kkowalski@netcom.com (Karen Kowalski) 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. -- Bastien Karlsson | bkarlsson@cern.ch PGP Key fingerprint: EAE3 DDC2 0A08 3A9A "Keep the channels open." From keriksson@inria.fr Mon Jan 08 17:56:31 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!inria!keriksson From: keriksson@inria.fr (Karen Eriksson) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan08.175631.4017@inria.fr> Date: Mon, 08 Jan 1996 17:56:31 GMT References: <1996Jan04.024931.3495@netcom.com> <1996Jan05.191231.7402@ox.ac.uk> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jan05.191231.7402@ox.ac.uk>, jlee@ox.ac.uk (Ji-woo Lee) 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. -- Karen Eriksson "When every node is whole, the channel opens." 486DX4/100 (FreeBSD 2.0.5) / FreeBSD 2.1 From ngarcia@mindspring.com Wed Jan 10 01:20:31 1996 Path: ashpoly!cascade!bigsur!mindspring!ngarcia From: ngarcia@mindspring.com (Nadine García) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan10.012031.1184@mindspring.com> Date: Wed, 10 Jan 1996 01:20:31 GMT References: <1996Jan04.024931.3495@netcom.com> <1996Jan05.191231.7402@ox.ac.uk> <1996Jan08.175631.4017@inria.fr> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996Jan08.175631.4017@inria.fr>, keriksson@inria.fr (Karen Eriksson) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Nadine García *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0