| 摘要 |
A data control apparatus (30) is located between a central processing unit (10) and a main storage unit, and includes a data storage unit (35). Specifically, both data output from the central processing unit (10) to the main storage unit and data output from the central processing unit (10) to other central processing unit are stored, and when the stored data is in an output enabled state, information indicating the output enabled state is added to the data, and the data with the information added thereto is output in the order of the oldest stored data. Thus, for example, the data output from the central processing unit (10) are stored in one data storage unit (memory), and when the stored data is in the output enabled state, the data can be output to each output destination in the order in which the data is stored. As a result, the data control can be performed by one memory without any need to provide a plurality of high-cost storage units (memories) having a speed equal to that of the central processing unit (10) to improve system performance, which allows cost reduction of the system construction. |
