JPS6435630A - Information processor - Google Patents

Abstract

PURPOSE:To execute the storage operand wrap-around even when the dislocation exists in an input/output position to a computing element of the preceding instruction and the succeeding instruction, when an operand store conflict is generated, by providing a matching means, etc. CONSTITUTION:When an area on a storage 50 in which the preceding instruction executes write and an area on the storage 50 in which the succeeding instruction executes read-out are superposed, an operand store conflict is generated. That is, when the preceding instruction executes write to some area on the storage 50, and the succeeding instruction executes read-out from the storage 50, by using the decoding information supplied from an instruction decoder 20, when an OSC detecting circuit 90 detects an operand store conflict, position matching is executed. In this case, a position of the contents which the preceding instruction writes to the area on the storage 50 is matched by a matching circuit 100, and supplied to an arithmetic circuit 70 through selectors 71, 72, etc. In such a way, even if the operand store conflict is generated, and the dislocation exists between the instructions, the storage operand wrap-around can be executed.