Importance

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Abstract

A method for minimizing idle time of a controller in a graphics system, which includes a graphics memory and a graphics accelerating device that interconnects the controller and the graphics memory, is disclosed. The graphics accelerating device includes a command register for storing command signals from the controller therein, and a graphics engine for receiving and executing the command signals stored in the command register one at a time. The method includes the steps of: detecting whether number of the command signals in the command register which are yet to be executed by the graphics engine has reached a predetermined threshold number; transferring the command signals, which are yet to be executed by the graphics engine, from the command register to a reserved space of the graphics memory when the predetermined threshold number is reached so as to permit the controller to store continuously the command signals in the command register in order to minimize idle time of the controller; and determining whether the reserved space of the graphics memory contains the command signals transferred from the command register, and providing the command signals in the reserved space of the graphics memory, instead of the command signals stored in the command register, one at a time to the graphics engine for execution by the graphics engine.

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First Claim