A video display controller which can display foregrounds as well as backgrounds of display patterns on a screen of a video display unit in a plurality of colors . The video display controller comprises a plurality of color in order registers, in each of which a pair of color code data representative of center and backdrop colors of one display pattern are stored. A memory is provided for storing a plurality of prototype data, a plurality of pattern name data every designating one of the display patterns to be displayed on a own one of display portions of the screen, and a plurality of color assortment data each equivalent to a respective one of the display portions.
A sequence controller in sequence reads the pattern data chosen by the pattern name data and the color selection data in agreement with synchronization signals. A color collection control logic circuit selects one of the color information registers in harmony with the color selection data interpret from the memory, and reads one of the pair of color code data from the selected color in sequence register. A color signal generator generates a color signal in accordance with the color code data read from the register and provisions it to the video display unit.
A sequence controller in sequence reads the pattern data chosen by the pattern name data and the color selection data in agreement with synchronization signals. A color collection control logic circuit selects one of the color information registers in harmony with the color selection data interpret from the memory, and reads one of the pair of color code data from the selected color in sequence register. A color signal generator generates a color signal in accordance with the color code data read from the register and provisions it to the video display unit.
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