| 摘要 |
PURPOSE:To rapidly response to an interruption request by storing interruption information with high using frequency in the 2nd storage device having a rapid access processing function so that the information is initially accessed at the time of generating an interruption. CONSTITUTION:A control circuit 3 receiving an interruption accepting signal S2 sends a vector information signal S3 to a detecting circuit 6. The circuit 6 detects the existence of branched information corresponding to a level included in the signal S3 in a cache memory 5. When the corresponding branched information exists, the control circuit 3 branches the signal S3 to a branched destination indicated in the branched information. When there is no corresponding branched information, the control circuit 3 inputs the branched information (i) stored in an external storage device 4 through a data bus DB, overwrites the information (i) in the cache memory 5 correspondingly to the i-th level and then branches the information (i) to a branched destination shown in the information (i). |
