Hi Greg, > The location and size of the hole are dictated by hardware. The > text/graphics part of the video chip cannot see RAM there. It is > redirected to a font ROM, instead. Because of that, demoes and games > usually don't put their graphics data there. As others said, > it has become a tradition to fill that area with music. Ah, thanks for providing this type of info ! You see, I'm trying to be not overly ignorant when it comes to C64 specifics and by now I'm quite used to the content of i.e. http://www.c64-wiki.com/index.php/Bankswitching However the VIC-side-of-things wasn't clear to me so far. Now I read more about it... But to be honest I still don't really get the point: So the VIC has never access to $1000-$3000. But don't C64 programs have stuff like code and non-VIC/non-SID data to store? I stll can't see why it is "obvious" to waste bytes "here and there" be tying stuff to fixed locations when after all it's only about keeping VIC-relevant data out of $1000-$3000. Anyway there's surely no point in discuss ing this (here (with me))... My takeaway is that for the 6510 this is perfectly ordinary memory and therefore my advice of not just loading dummy bytes there but rather load some initial sound data there was useful/correct :-) Regards, Oliver ---------------------------------------------------------------------- To unsubscribe from the list send mail to majordomo@musoftware.de with the string "unsubscribe cc65" in the body(!) of the mail.Received on Thu Jan 26 11:53:46 2012
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