Selective page disable for a video display

摘要: A video display system utilizes three banks of memory for producing an 8-color or 8-level gray scale display. separate plane, random access (RAM) array, each the "primary" colors, i.e., red, green and blue, is used in a bit-mapped graphics implementation computer driven In monochrome display, pixel mixing produces Each planes may be selectively disabled as desired special applications. For example, limited animation capability provided by displaying one page while generating new non-displayed page. By disabling currently displayed plane enabled, instantaneous modification closely simulated animated The thus then any normal RAM other application. addition, all disengaged from central processing unit (CPU) to blank various applications such during initial reset part operating program.