[Coco] No more dream ports (Was:Wolfenstein 3-D on a 4.77mhz 8088? So, 6809 port, anyone?)

[Allen Huffman]

On Apr 25, 2013, at 1:48 AM, Steve Bjork <6809er at srbsoftware.com> wrote:
> I don't believe that graphics on the board had any sprites. (Arcade game Zaxxon also did not have sprites.)  Graphic work was done of the Charter map system to emulate sprites.  This is why they put a CPU in the graphic system.

Could you explain that? When I look at some early arcade games, I often see the initialization show what looks like bits and pieces of the character graphics. This reminds me of how the VIC-20 did all their graphics. The character set was created for all the positions and you were just writing characters to the screen display.

I guess it's similar to having tiny tiles?

		-- A