| 摘要 |
PURPOSE:To shorten processing time for a store instruction by sending out store data without allowing it to pass through an operation register simultaneously with a condition code in accordance with plural store instructions. CONSTITUTION:When a store instruction follows an operation instruction, the result of operation and a first condition code are stored in an operation result register 5 and a first condition code register 6, respectively. The result of operation is stored in a data register 9 by a bypass line 12, and in a third condition code generating part 8, a third condition code is generated in accordance with plural kinds of store instructions. Plural kinds of generated third condition codes are selected by a selector circuit 10 in accordance with the kind of the store instruction, and stored in a condition code register 11. In such a manner, the result of operation and the condition code are outputted simultaneously without passing through an operation register, and the processing time of the store instruction can be shortened. |
