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| From: Richard Atkinson
Date: 2000-11-15
Subject: Re: 364 O.S.
|
On Mon, 13 Nov 2000, Nicolas Welte wrote:
> The C64 MV uses a pretty strange interface to the Toshiba chip, with a
> 6525 IO chip that talks to the Toshiba through a PLA (plus a 4bit wide,
> 16bit deep shift register). This must all be integrated in that single
> 28 pin chip that the 364 has, and probably it is a different
> implementation than in the C64 MV.
I've had a look at the speech ROM disassembly at:
http://plus4.emuviews.com/download/dassspk3.txt
Location $fd22 looks like a data register and $fd21 some kind of command and status register. $fd20 seems to be a reset / mode register - where there any likely equivalents of these in the Magic Voice?
Richard
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