Patent ID: 6717583
Filing Date: 2004-04-06
Classification: G06F,G09G

Abstract:
A graphics display device, comprising:a CPU for generating procedure information to be displayed on a visual display; a memory for storing drawing procedure information written from the CPU and drawing data to be displayed on the visual display; and a graphics processor for executing drawing access with respect to the drawing procedure information, storing the drawing data in the memory and outputting the drawing data for the visual display, wherein the memory is accessible from both the CPU and the graphics processor, and the graphics processor includes a register which designates for the CPU an access system to the memory from one of plural access systems, including a copy-back system and a write-through system each having a different maximum access size designated in the register, and which controls read-out timing of the drawing data to be read out from the memory depending on a content designated in the register.