[comp.sys.ibm.pc] 25 to 43 line mode switching

williams@vrdxhq.UUCP (Tim Williams) (06/21/88)

Has anyone ever programmed the EGA/VGA video card to switch from 25 line
mode and back again.  I do not mean using BIOS interrupt 10H, I need to
know how to program the board directly.  Any help will be appreciated.


Thanks 

Tim Williams