METHOD AND DEVICE FOR FACILITATING OUT-OF-ORDER EXECUTION

摘要

PROBLEM TO BE SOLVED: To obtain a method which prevents an error caused by collision between preload and a storage instruction. SOLUTION: A processor 100 includes a preload queue 160 for storage of plural preload entries. Each preload entry is related to a preload instruction and includes defined address and byte count and a related identifier. A comparison unit 170 related to the preload queue 160 discriminates each of preload entries related to preload instructions which collide with older storage instructions. The oldest preload instruction related to one of these preload entries indicates target preload. In order to correct the collision between the target preload and the storage instruction, this target preload and all instructions executed after the target preload are flashed.