shc1@ukc.ac.uk (S.H.Cogheil) (02/15/89)
I am currently writing a graphics routine which requires the alternating display of two screens. At present I am using the set_screen routine to change both the logical and physical display base. Doing this on the odd occasion is fine, but when I repeatidly switch between screens, I get a FLASH of the previous screen appearing about half-way down the present screen, and this occurs at none to regular intervals. It was my understanding that the set_screen command actually waited for the vertical interrupt before it switched bases, if this is the case, WHY do I get a DODGEY display. { All replies will be welcomed with open EYES !! } ------------------------------------------------------------ | SAMUEL.H.COGHEIL | I-TEQUENOLOGY '89 | |---------------------|------------------------------------| | Darwin College | My Tequenology is | | University of Kent | High Technology | | shc1@ukc.ac.uk | < I-TEQUE > | ------------------------------------------------------------