re few video questions in article hpfcso fc hp com myers hpfcso fc hp com bob myers writes situation sometimes called block sync you can generate such a combined or composite sync in two simple ways or the h and v syncs together which gives you the non serrated block sync or exor them which makes serrations try it actually the exor doesn t really do kosher serrated sync since it puts the rising and falling for that matter edge of the h sync pulse off by a pulse width but that usually makes no difference sometimes it depends on your monitor and your timing if you don t have enough vertical front porch and you use xor composite sync you can get even odd tearing at the top of the screen which is very sensitive to the hhold control it looks like what you would expect if you scanned the even fields say onto a sheet of mylar and had pinched the upper left corner with your fingers and started to tear it off the tube with proper composite sync equalizing pulses the interlace is rock solid ii cccccc jim cathey ii sssscc isc bunker ramo ii cc taf c spokane wa iissss cc uucp uunet isc br jimc jimc isc br isc br com ii cccccc one design to rule them all one design to find them one design to bring them all and in the darkness bind them in the land of mediocrity where the pc s lie
