prindle@NADC.ARPA (Frank Prindle) (12/18/87)
It is a well know fact that the C64 and VIC-20 vertical scan line count on their video outputs cause some Zenith and Sylvania TVs to bounce the picture up and down. I recall reading (either here or in some magazine) several years ago that a register could be POKEd in the VIC-20 to fix this (but not in the 64). *********************************************************************** Can anyone remember what the POKE for the VIC-20 is to fix the jitters? *********************************************************************** I know that this can also be fixed by modifying the TV to defeat the offending function, but this is going on a video tape to be watched by people who would undoubtedly not want to tear apart the tube just to watch the tape! Any help would be appreciated. Sincerely, Frank Prindle Prindle@NADC.arpa
seven@nuchat.UUCP (David Paulsen) (12/21/87)
In article <8712171708.AA23511@NADC.ARPA>, prindle@NADC.ARPA (Frank Prindle) asks: > *********************************************************************** > Can anyone remember what the POKE for the VIC-20 is to fix the jitters? > *********************************************************************** Try POKE36864,PEEK(36864)AND127 to turn interlace mode on, and POKE36864,PEEK(36864)OR128 to turn it off. -- David Paulsen - CHARTER MEMBER, WILLIAM WINDOM FAN CLUB ..uunet!nuchat!seven "It had a maw that could swallow a DOZEN starships!" --Commodore Matt Decker, chewing on the scenery again