Re: How hardware accelerators deals with $0/$01

Den Fri, 20 Oct 2017 11:34:04 +0100 skrev smf <smf@null.net>:
> 
> On 19/10/2017 21:59, Mia Magnusson wrote:
> > Then the VIC could access RAM as if it were a 16 bit device
> > (throwing away the four upper bits).
> 
> It kinda does, if you mean it would be easier if video ram was 16
> bits and contained the character and colour (essentially how cga does
> it) then I don't see how you could do that without completely
> throwing away the c64 motherboard and starting again.

Well, you could do some minor modification to the board itself and put
an adaptor between the VIC-II and it's socket :)
 
> I'm kinda disappointed that the C128 was a backward step from the
> plus4 in terms of colour (and cpu speed) but cest la vie.

Yes, but it would have been even better if it were like EGA/VGA text
modes on a PC, with 8 bit attribute divided in 4 bit foreground and 4
bit background and then have 16 color registers (or even perhaps 32
registers, 16 for foreground and 16 for background, and maybe even more
for the sprites and border and whatever would be nice for multicolor).

But all this would have required some major redesign. I don't know how
much the price were for faster memory at the time. Getting rid of the
color RAM might not have saved that much if it meant requiring faster
RAMs.

-- 
(\_/) Copy the bunny to your mails to help
(O.o) him achieve world domination.
(> <) Come join the dark side.
/_|_\ We have cookies.

       Message was sent through the cbm-hackers mailing list