Jorge ChB wrote:
Michael J. Mahon <mjmahon@aol.com> wrote:I'd suspect that the colour burst being absent in the middle of a frame would produce pretty bizzarre results.Like for example ? I ran the program above and nothing "bizarre" came on the screen.I didn't say something bizarre *would* happen, only that it *could* happen, because it is completely outside the NTSC specification.Yep, the most "bizarre" thing that could happen is a switch from color to monochrome, or viceversa...
No--actually, loss of color sync could result in some "rainbow" displays for part of a frame as the monitor color reference oscillator tries to get back into phase lock. The "trajectory" of phase lock during reacquisition can be chaotic, so, with the "right" timing, wierdness can happen. Some monitors may incorporate circuitry to detect solid phase lock of the reference and disable chroma processing until it is achieved, but I'd be surprised to find this in non-professional monitors. -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."