| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve performance by suppressing the generation of waste time. <P>SOLUTION: An information processor 1 includes: an instruction issue control part 10 which issues two or more instructions in a dependent relationship; and an execution pipe line 20. The instruction issue control part 10 includes: an instruction decoding part 11; a resource management part 13 which manages the state of use of a resource to be used in the instruction; an issue timing determination/resource assignment part 12 which determines the number of cycles from now before the resource to be used by a decoded instruction is made available on the basis of the state of use of the resource, and determines the number of cycles as the issue timing of the decoded instruction, updates the state of use of the resource, and performs the assignment of the resource; and an issue determination instruction stand-by buffer 14 which performs the buffering and storage of the instruction in which the determination of the issue timing and the assignment of the resource has been performed until the issue timing comes, and issues the instruction to the execution pipe line 20 in the issue timing. <P>COPYRIGHT: (C)2012,JPO&INPIT |
