| 摘要 |
PURPOSE:To reduce the load of attention information processing of an high-order system by holding attention information by a low-order system and outputting an information transfer request when the high-order system requires the information. CONSTITUTION:The high-order system 1 includes an attention processing mechanism 10 and the low-order system 2 includes a transfer mechanism 20 for transferring the attention information to the high-order system 1 and a storage mechanism 30 for storing the attention information. Data are transferred between the high-order system 1 and the low-order system 2 through a channel 3. When it is necessary to transfer the attention information from the low-order system 2 to the high-order system 1, the attention information is stored in the storage mechanism 30 and an attention interruption is generated in the high-order system 1. The high-order system 1 analyzes the kind of the attention interruption and outputs an attention information reading command to the low-order system 2. |
