pjm@utastro.UUCP (Phillip MacQueen) (07/14/89)
I would appreciate any suggestions which might help me solve the following problems that I am having while learning to program video adapters with assembly language. I'm using a VGA adapter. I have been trying to find a simple way to determine what value is being used for the default video attribute byte in, for example, BIOS calls like `write character at cursor' (INT 10h, function 0Ah). I haven't been able to find a BIOS call which returns this value, or a location within the BIOS data area in which it is stored. How can a program determine this value? The second question is closely related to the first. How can a program specify the attribute byte which will be placed in the video buffer by BIOS calls like `write character at cursor' (INT 10h, function 0Ah), without having to write anything to the screen? I'd appreciate a copy of replies via e-mail, thanks. ------------------------------------------------------------------------------- ARPA: pjm@astro.utexas.edu Phillip MacQueen McDonald Observatory University of Texas at Austin RLM 15-308 Austin, Texas 78712, U.S.A. -------------------------------------------------------------------------------