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Robin Cornelius wrote: > On 4/24/07, Paul Sutton <zleap@xxxxxxxxx> wrote: > >> Rob Beard wrote: >> >>> Mark Jose wrote: >>> >>> >>>> On Monday 23 April 2007 19:29, Charlie BT wrote: >>>> >>>> >>>> >>>>> Now I feel old, as I had one >>>>> >>>>> Charlie >>>>> >>>>> >>>>> >>>> Still got mine, together with the books and loads of games! >>>> >>>> Mark >>>> >>>> >>>> >>> I've got a VIC20 with manuals and software (but no tape deck) and an >>> Acorn Electron in the loft. I also have a C64 but for some reason it >>> doesn't work. >>> >>> Maybe we should bring these old computers to a meeting. Okay, it's not >>> Linux related but if I recall correctly, some bright spark has worked >>> out how to put an IDE interface and TCP/IP stack complete with web >>> server on a C64 (and I think something similar on an Atari 8-bit and >>> Speccy too). >>> >>> Rob >>> >>> >>> >>> >> That would be cool, tcp/ip on a speccy, , I remember someone managing >> to increase the memory on a spectrum to something like 71k, using a >> switch, (so keep memory refeshed, while switching to another part of >> memory or something) can't remember exactly how. >> >> > > The hardware is simple in principle, all the memory chips sit on the > data and address bus and you just use the chip enable signals to turn > them on and off. You can even add software selectible switches,I have > done stuff a bit like this on a z80 processor, you have to create a > memory manager that can select the approprate page of memory and then > be *very* careful where you store variables and how you access memory > :-) > > Its also quite possible to fit an ISP1181 USB chip to a z80 processor, > if the speccy had approprate access to IO lines this could be done to. > Although why is a different matter, lol > > > > > In terms of why, I think in hacker terms because it can be done, and its a challenge, this would be old school hacking at its best, I agree we could have a retro meet, just need to remember to bring a stack of tv's with us. Paul > > -- Next meet - Thursday 12th April 2007, Paignton Rugby club, 19:00 - 22:30 http://www.openoffice.org http://www.linux.org CHAT SERVICES www.phractured.net PRFC CHAT ROOM - http://www.zleap.net/cgi-bin/irc.cgi Saturday 21st April 2007 - Devon Cup final - Paignton vs Torquay at Queens Park, Paignton, 3pm kick off. -----BEGIN GEEK CODE BLOCK----- Version 3.1 GIT d S: a C+++ UL++++ P+ L++ W++ N+ W--- O! V! PS+ Y! t+++ 5 X+++ R tv- b- DI! D++ G e H! r! z? -----END GEEK CODE BLOCK---- -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html