On February 16, Paul Apprich wrote:
> 	Writing 0xff to this area turns it on (white) Any other data does 
> not seems to budge it. This may be either a monochrome plane or there are 
> fields elswhere in memory for the video DAC to generate color. Perhaps a 
> corresponding write to the same offset in a different block of memory 
> would do it. I have seen color patterns generated by the 'test 8X' 
> commands in the boot monitor.

  There's gonna be a colormap in there somewhere...we need to find out
where it is...it's probably a 256-element table, each element of which
is a 24-bit RGB triple.  That's just a guess...

  Anyway, the frame buffer pixel values should address entries in the
colormap, the addressed entries in which are passed to the DACs.

                       -Dave McGuire
                        mcguire@neurotica.com