| 摘要 |
PURPOSE: To provide the device and method for increasing the speed of conversion by converting a plurality of adjacent virtual page addresses when miss occurs at an address conversion buffer (TLB). CONSTITUTION: In response to the miss of a TLB 270, for example, each virtual page address 260 in the prescribed block of four adjacent virtual pages is individually converted by the indexing operation of a segment table 240 and (or) a page table 250, and a corresponding page frame address(PFRA) is prepared. The page frame address(PFRA) corresponding to the virtual address in the above mentioned block is stored in one TLB entry 272. The continuous virtual page addresses are prepared by incrementing the leading virtual page address in the above mentioned block, and the TLB entry includes the leading virtual PFRA in the above mentioned block, the succeeding above mentioned individual PFRA, and related invalidity/page protecting bit field in each adjacent virtual page in the pertinent block. |
