1. An apparatus for processing an interruption in data for a voice and an image processing system, said apparatus comprising: a CPU for controlling a plurality of units to cause them to operate in prescribed manners responsive to voice and image data, said image data being for displaying an image on a TV screen having H and V blanking, said CPU processing an interruption in said data for a designated one of said units, said units being taken from a class consisting of a video encoder, a voice data output unit, a video display unit, an image data extension unit, and a controller unit; an ordinary register for storing a predetermined content of said data; and a plurality of shadow registers for storing said data contents necessary for carrying out said interruption, said shadow registers being provided in said CPU, and said shadow registers being provided exclusively for units taken from said class consisting of said video encoder, said voice data output unit, said video display unit, said image data extension unit, and said controller unit; one of said shadow registers being changed-over to be used from said ordinary register, when one of said units is designated for said interruption in accordance with an interpretation of a program by said CPU.