18 Jun
2007
18 Jun
'07
3:42 p.m.
On 6/18/07, Jim Leonard <trixter at oldskool.org> wrote:
Martin Scott Goldberg wrote:
As mentioned further up in this thread, the Atari vector games had, in
effect, a vector math co-processor, the Analogue Vector Generator
(AVG) or "math box" built from 2901s to do the heavy lifting. The
8-bit processor fed shapes to the AVG and sounds to the Pokey and
handled the yoke/joystick I/O.
-ethan
I, Robot (1983 - the first 3D/Polygonal game)
used a 6809 with supporting
2901 bit slice cpu's for graphics support. The color vector Star Wars
also used the 6809.
Surely they didn't use the 6809 for the 3D calculations, did they? I
know those games have a lot of optimization (fixed-point, no hidden-line
removal, etc.) but they still seem a bit much for a 6809...