From jbrennan@inria.fr Wed Nov 27 06:09:48 1996 Path: ashpoly!cascade!brgate!saturno!inria!jbrennan From: jbrennan@inria.fr (Julien Brennan) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Nov27.060948.3476@inria.fr> Date: Wed, 27 Nov 1996 06:09:48 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] 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. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Julien Brennan Opinions expressed are solely my own and not those of INRIA Rocquencourt. ------------------------------------------------------------ From aperez@pacbell.net Fri Nov 29 01:41:48 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!pacbell!aperez From: aperez@pacbell.net (Amy Pérez) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Nov29.014148.1824@pacbell.net> Date: Fri, 29 Nov 1996 01:41:48 GMT References: <1996Nov27.060948.3476@inria.fr> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Nov27.060948.3476@inria.fr>, jbrennan@inria.fr (Julien Brennan) 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. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Amy Pérez "The hatch is open. Is anyone listening?" Pentium 90 (OS/2 Warp) / FreeBSD 2.1