Herc Graphics Programming for Xenix

[Robert Lin]

Can any kind soul shed light on the subject of programming the herc
graphics card under Xenix? I have been able to map a pointer into
the graphics buffer, but the pointer does not point to the upper left
hand corner. Its location appears to be random.

My question is, how do I make it point to the upper left hand corner
of the Herculeus graphics page?

Please send reply via e-mail to <rlin at cs.ubc.ca>. Thanks very much!

-Robert Lin <rlin at cs.ubc.ca>