From: Richard Atkinson (rga24_at_cantab.net)
Date: 2002-04-07 12:49:38
On Sun, 7 Apr 2002, Marko Mäkelä wrote: > The good news are that the Oric-1 was improved in the process. Since > the Oric tape connection has been designed for regular tape decks, I had > to locate a spot where the TTL-level cassette read and write lines are > located. Now, this C2N interface for the Oric-1 has been documented at > <URL:http://www.funet.fi/pub/cbm/documents/projects/other/c2n-oric1.html>. This is fantastic news, Marko. The Oric-1 is a highly fascinating machine for those of us with an interest in British home computers - it's virtually the 6502 equivalent of the ZX Spectrum. The problem has historically been (for me, at least) the extreme rarity of Oric disk drives and the corresponding prices that collectors are prepared to pay for them. Even the Oric Atmos computer itself goes for pretty silly amounts. Although the Oric video chip is quite interesting in itself, the most curious thing about the Oric (neglecting its "hidden" 16K for a moment) is the interface with the AY-3-8912 Programmable Sound Generator. This is quite unlike any other PSG implementation. It uses a MOS 6522 VIA to control the PSG data, address and control busses with some very interesting hacks resulting from this method of controlling the PSG. Richard Message was sent through the cbm-hackers mailing list
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