| 摘要 |
PURPOSE:To shorten the processing time as the whole, by selecting and registering an interruption of the highest priority level for interruption causes generated in parallel to recognize instructions which interrption causes are generated in accordance with. CONSTITUTION:In the advanced mode control mode for arithmetic logical units 7-1-7-3, it is reported to an advanced mode control indication register 1, and an instruction fetch part 3, etc. are controlled by an advanced mode control part 2 to add the instruction word length to the just preceding instruction address, and an instruction is fetched by the result. Next, instructions fetched successively are set in execution queuing registers 4-1-4-3 in order, and IDs are set in sequential ID set parts 5-1-5-3. Processing are executed in parallel by the units 7-1-7-3; and when an operation exception or the like occurs, an interruption is generated from pertinent one of the units 7-1-7-3 an interruption control part 8 and the control part 2, and a new instruction is prevented from being set, and the interruption processing is executed in the order of IDs. |
