| 摘要 |
PURPOSE:To reflect an operand store in an instruction fetch buffer storage without requiring synchronism between both pipelines of operand fetch and instruction fetch, by performing the above-mentioned reflection by utilizing the address and data of a store buffer. CONSTITUTION:By utilizing the address and data of a store buffer (STB) 10 installed to a store through type buffer storage, an operand store is reflected in an instruction fetch buffer storage. A store address set in a store address register (STAR) 9 is checked whether or not a relevant address exists in an instruction fetch buffer storage 5 before the address is sent to a main storage. When the revelant address exists, store data in the STB10 is written through an instruction store data register (ISDR) 8. Therefore, the store access of an operand is not necessarily made by synchronizing both pipelines of operand fetch and instruction fetch to each other.
|
