| 摘要 |
With conventional ordered data reference instructions, an instruction which is to be the subject of an execution order guarantee cannot be separately specified, and a resource which is to be the subject of an execution order guarantee likewise cannot be specified and thus instruction movement is restricted more than necessary in the out-of-order execution of instructions and so on and performance deterioration becomes significant particularly in the case of performing data transfer to a resource having high access latency. Consequently, the field of an ordered data reference instruction judged to include a predetermined field is decoded so as to identify a subject instruction which is specified by the ordered data reference instruction and is the subject of execution order guarantee, and guarantee the execution order of the subject instruction with respect to the execution of the identified ordered data reference instruction. |
