STORAGE CONTROL SYSTEM

PURPOSE:To decrease the access conflicts, by providing fetching and storing buffer directories and address conversion buffers respectively. CONSTITUTION:The accesses are given to a fetching address conversion buffer 41, a fetching buffer directory 44, etc. with an operand fetching logic address and an instruction given from a fetching logic address register 40. While a storing address conversion buffer 51 and a storing buffer directory 54 having same contents as the buffer 41 and the directory 44 respectively receive accesses by a logic address given from a logic address register 50 for storing. As a result, no access conflct occurs even though simultaneous and parallel accesses are carried out with fetching and storing logic addresses. Thus the access conflicts are decreased in a storage control time for a storage device containing a main storage device, a buffer storage device, etc.