ADDRESS CONVERTING METHOD

PURPOSE:To reduce the generation of a TLB miss by performing address conversion for the periphery of one page when the address of the page is converted, and storing peripheral page conversion table information in a TLB. CONSTITUTION:Once an acknowledgement signal 11 is asserted, a TLB (conversion index buffer mechanism) access signal 12 is asserted for two cycles and TLB indexing is carried out for an (n)th page. In the address converting process stage for the (n)th page, the conversion table information on its peripheral page is stored in the TLB unless the conversion table of pages in the periphery of the (n)th page is stored in the TLB. When the address conversion of a peripheral page becomes necessary in the near future, the conversion table information obtained by the address conversion of the peripheral page need not be transferred from a main storage and stored in the TLB to enable speedy processing. In this case, an (n+1)th page is specially selected as the peripheral page.