| 摘要 |
PURPOSE:To shorten address conversion time by holding an actual address converted from a virtual address and by using it for rewriting operation. CONSTITUTION:A virtual address set in a virtual address register 11 under the control of an address conversion control part 12 is converted into an actual address through an address conversion block 13, etc., and it is stored in an actual address register 14. The address stored in this register 14 is used to access a main memory and even after the access, the actual address is held in the register 14. Then, the control part 12 advances the held address of the register 14 and it is used for rewriting operation. Therefore, the rewriting operation is performed without address conversion, etc., to shorten address conversion time, thus speeding data processing. |
