[comp.binaries.ibm.pc.d] programming ega video hardware

kjh@aludra.usc.edu (Kenneth J. Hendrickson) (11/02/90)

Help.  I need to know how to program the EGA video hardware directly.
I am working on a screen blanker for Minix, and it is running in
protected mode.  I therefore can't use the BIOS.  I can't find the
information in Norton's otherwise excellent book, and my "Programmer's
Guide to PC & PS/2 Video Systems" by R. Wilton has this information
only for CGA and MDA.

I am pretty sure that it should be possible to disable video refresh on
both EGA and VGA, but I can't find the information on how to do it.
(The BIOS does provide a mechanism to do this for VGA, but I can't use
it.)

Ken Hendrickson N8DGN/6      kjh@usc.edu      ...!uunet!usc!pollux!kjh