bieling@terra.es wrote:
mdj wrote:Jorge ChB wrote:You can tell if a line has to be interpreted as color/B&W on a line by line basis by watching for the presence of the color burst at the beginning of *each* line...?? The colour burst is omnipresent in graphics modes. Even mixed mode with 4 lines of text you get the fringy colour bust issues.I thought the burst was shutdown while showing text, but it looks like it's shutdown while in TEXT mode, which is not the same thing... :-(
That is required for a stable color picture. The color NTSC spec requires that burst be continuously present in a color video signal. Sub-frame switching of the burst is not allowed and may have unpredictable results. -michael Parallel computing for 8-bit Apple II's! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it is seriously underused."