Richard Relater wrote:
> Careful now, Ben ... I believe I remember what the 6847 is. It only supported
> one character display format. While I agree that the CGA is a piece of crap,
> as is any display with fewer than 768 pixels horizontally and 512 vertically
> on an NTSC frame, and also including CGA, Herc, and EGA, the 6847 couldn't
> manage more than its 256x192 pixels, in what ... 4 colors if you include
> black? The entire system timing was heavily dependent on the 6847 and that
> peculiar 74LS768 or whatever ( sequential address multiplexer ) without which
> they couldn't have built the thing in the size they did.
I run 640x480 where does that fit?? I got a few targa boards kicking
around here
512 x 512 NTSC - 15 bit color.
640 x 200 would give you minimal 80x24 screen with 8x8 bit characters --
nice for playing games if you have a definable character set. I think
the
C64 had this.
What I ment by real display 1) real keyboard 2) real video 80 x 24 upper
and LOWER case too.
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html
Received on Wed Apr 24 2002 - 00:23:35 BST