| 摘要 |
To allow to use arithmetic circuits of sharable resources by priority with a simple procedure. In a data processing system including central processing units and a plurality of arithmetic circuits, wherein the central processing units are able to supply a command to one arithmetic circuit based on one fetched instruction and supply a command to other arithmetic circuit based on other fetched instruction, a memory circuit is provided which is used to store first information indicating which arithmetic circuit is executing a command, and second information indicating which central processing unit has reserved the arithmetic circuit for execution of the next command. When the arithmetic circuit is already executing a command, reservation of the arithmetic circuit for execution of the next command using the second information of the memory circuit, makes it possible, after the execution, to assign operation commands fast to the arithmetic circuits and cause them to execute the commands. |
