On Mon, 16 Feb 1998, Patrick Light wrote:

> Allison J Parent wrote:
> > 
> > <P.S. VAX video matrix address starts @ 0x38000000 simple progressive left
> > <to right, top to bottom.
> > 
> > For what plane of a multiple plane system?
> > 
> > Allison
> 
> So that means we can (or are required) to address each board of a
> multiplane video system (eg VS3100) separately to write a pixel?  Or is
> there some common register set that would update this automatically for
> us?
> 
	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.

P.S.A