14 Jan
2013
14 Jan
'13
2:16 a.m.
Josh Dersch wrote:
I have a set of Matrox QRGB-GRAPH (and QVAF-512) boards
(Q-Bus color graphics for the PDP-11) which I have yet to play with. I don't think
it'd be a good candidate for anything that requires rapid full-screen updates, though
-- in particular there's no facility for blitting a graphics region from the -11 to
the graphics memory (everything is drawn on a pixel-by-pixel basis through a set of
registers). Were there any PDP-11 graphics systems that actually had a memory-mapped
framebuffer?
Do you have a manual for the QRGB-GRAPH board. I think
I sent a copy to Al a while back when I could not find it on
bitsavers, but perhaps not.
By the way, Matrox is probably over 40 years old and is located
near Montreal, Quebec. They originally made graphics cards
for systems like the PDP-11, but dropped them long ago when
the demand dried up.
Jerome Fine