G.TANG@SU-SCORE.ARPA@sri-unix.UUCP (06/03/83)
From: John Palevich <G.TANG@SU-SCORE.ARPA> On page 2-64 of the Technical Reference Manual, IBM mentions "Interrupt Level (Vertical Retrace) Level 2". What does this mean? In my ATARI home computer I can use a vertical blank interrupt to write better games. I'd like to do the same sort of thing on my IBM; does anybody know how to do it? P.S. It's useful for non-game programs, too.