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 !! }
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| SAMUEL.H.COGHEIL | I-TEQUENOLOGY '89 |
|---------------------|------------------------------------|
| Darwin College | My Tequenology is |
| University of Kent | High Technology |
| shc1@ukc.ac.uk | < I-TEQUE > |
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