From hdubois@inria.fr Sat Sep 17 21:03:42 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!inria!hdubois From: hdubois@inria.fr (Hugo Dubois) Newsgroups: comp.sys.m68k Subject: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Sep17.210342.7413@inria.fr> Date: Sat, 17 Sep 1994 21:03:42 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr 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. CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit. At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- Hugo Dubois -- INRIA Rocquencourt "Measuring a record you own is listening, not piracy." From ckim@tum.de Mon Sep 19 06:20:42 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!tum!ckim From: ckim@tum.de (Callum Kim) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Sep19.062042.7509@tum.de> Date: Mon, 19 Sep 1994 06:20:42 GMT References: <1994Sep17.210342.7413@inria.fr> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Sep17.210342.7413@inria.fr>, hdubois@inria.fr (Hugo Dubois) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. The TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space. -- Callum Kim *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0