II70038@MAINE.BITNET (Jonathan Kimball) (10/09/90)
I posted this a few weeks ago but got no response, so I'll try again. For a program I'm writing I need to know how to toggle blinking and underline modes, and how to detect vertical (not horizontal) retrace. I now have this information for all popular video cards with the exception of the CGA. If some kind soul could please tell me what port addresses and bits to use I would be very happy. It would be all I need to make the program work with CGA and would save me getting a book. :-) Jonathan Kimball II70038 at MAINE.BITNET II70038 at maine.caps.maine.edu