Re: Crosspost: Did the cpu influence the display?

["Mike Wynne" <mikeywyn@hotmail.com>]

"Sam Gillett" wrote...
> "Lyrical Nanoha" wrote ...
>>>> Of course it is possible to have 40 (or say 80) chars per line and
>>>> still have linear addressing, like in
>>> Atari?
>> Commodore PET/CBM, 64 and Plus/4?  All of them had linear addressable 
>> 40x25
>> text mode.
> I started to point that out several times, but thought I would wait to see
> how long it took for someone else to do it.    ;-)    Thanks for restoring 
> my
> faith in Commodore users!    :-)

But you guys missed out the important part of the original quote:

"Of course it is possible to have 40 (or say 80) chars per line and still
have linear addressing, like in a VGA card, *but that requires a lot more
hardware.*"

In the case of the C16/+4 a custom TED Chip, the C64 uses the custom VIC-II, 
the Atari it's custom Antic chip.  Try designing a video circuit in discrete 
logic (Like the Apple II) then tell me how much more hardware is required to 
obtain a linear 40 or 80 column mode.

MikeW