Re: Additional SIDs

From: Richard Atkinson <>
Date: 03 Dec 2011 20:17:41 +0000
Message-ID: <>
On Dec 3 2011, Marko Mäkelä wrote:

>Doesn't the C65 boot up in 64 mode? If I remember the documentation 
>correctly, the KERNAL would do some VIC-III "register knocking" to 
>switch to the C65 mode.
>This would suggest that the second SID is available in the 64 mode, at 
>least in some way. In the 128, the 64 mode is different, as you cannot 
>switch back without asserting the RESET signal.

$D400 and $D440, according to this.

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Received on 2011-12-03 21:00:03

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