From jschneider@clari.net Sun Feb 25 02:16:37 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!clari!jschneider From: jschneider@clari.net (Jens Schneider) Newsgroups: comp.sys.m68k Subject: Question: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb25.021637.7057@clari.net> Date: Sun, 25 Feb 1996 02:16:37 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Hardware disassembly report for Motorola hardware hackers. 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. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Jens Schneider -- ClariNet Communications Corp "Hold for relay." From gsato@netcom.com Sun Feb 25 20:06:37 1996 Path: ashpoly!cascade!mxgate!coyoacan!netcom!gsato From: gsato@netcom.com (Göran Sato) Newsgroups: comp.sys.m68k Subject: Re: Question: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb25.200637.1783@netcom.com> Date: Sun, 25 Feb 1996 20:06:37 GMT References: <1996Feb25.021637.7057@clari.net> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Feb25.021637.7057@clari.net>, jschneider@clari.net (Jens Schneider) writes: > Hardware disassembly report for Motorola hardware hackers. > The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Göran Sato *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From gmuller@ox.ac.uk Mon Feb 26 05:13:37 1996 Path: ashpoly!cascade!bigsur!ox!gmuller From: gmuller@ox.ac.uk (Graham Müller) Newsgroups: comp.sys.m68k Subject: Re: Question: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb26.051337.7743@ox.ac.uk> Date: Mon, 26 Feb 1996 05:13:37 GMT References: <1996Feb25.021637.7057@clari.net> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Feb25.021637.7057@clari.net>, jschneider@clari.net (Jens Schneider) writes: > Hardware disassembly report for Motorola hardware hackers. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Graham Müller *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From thughes@panix.com Mon Feb 26 19:23:37 1996 Path: ashpoly!cascade!transat!ukc!fennimore!panix!thughes From: thughes@panix.com (Takeshi Hughes) Newsgroups: comp.sys.m68k Subject: Re: Question: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb26.192337.3387@panix.com> Date: Mon, 26 Feb 1996 19:23:37 GMT References: <1996Feb25.021637.7057@clari.net> <1996Feb26.051337.7743@ox.ac.uk> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Feb26.051337.7743@ox.ac.uk>, gmuller@ox.ac.uk (Graham Müller) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Takeshi Hughes *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0