CONTROL CIRCUIT FOR GRAPHIC MACHINE AND USE OF SUCH CIRCUIT IN INTERACTIVE GRAPHIC MACHINE

摘要

The control circuit for a graphics machine according to the invention makes it possible to couple a large-capacity image memory 1, organized in several logical planes each consisting of several memory planes each comprising as many bits as points in an image. to a color transcoding table memory 4 addressed by an address bus having fewer bits than there are frames in the image memory. For this purpose, it comprises a plan selector circuit 3 connecting the image memory 1 to the color transcoding table memory 4, controlled by a configuration control register 2. The user can select, with each scan, those of the planes of the image memory 1 which will be used to define the appearance of the corresponding points. BR/ The invention applies to graphic machines with a high degree of interactivity. BR/ (CF DRAWING IN BOPI) BR/ BR/ / P