From snilsson@uni-hamburg.de Fri Sep 06 06:28:57 1996 Path: ashpoly!cascade!bigsur!uni-hamburg!snilsson From: snilsson@uni-hamburg.de (Seo-yeon Nilsson) Newsgroups: comp.sys.m68k Subject: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Sep06.062857.4677@uni-hamburg.de> Date: Fri, 06 Sep 1996 06:28:57 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- Seo-yeon Nilsson Tape trading list upon request. SASE required for international mail. From rkowalski@pacbell.net Fri Sep 06 17:18:57 1996 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!rkowalski From: rkowalski@pacbell.net (Raj Kowalski) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Sep06.171857.2910@pacbell.net> Date: Fri, 06 Sep 1996 17:18:57 GMT References: <1996Sep06.062857.4677@uni-hamburg.de> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1996Sep06.062857.4677@uni-hamburg.de>, snilsson@uni-hamburg.de (Seo-yeon Nilsson) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. > Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Raj Kowalski *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0