| 摘要 |
PROBLEM TO BE SOLVED: To protect data dependency between instructions even when instructions being exerted have access to the same register.SOLUTION: A processor comprises: registers in which data are stored; at least one flag table having, for each register, a flag group including the number of flags assignable to corresponding instructions being exerted; a flag set section configured to set a flag assigned to an instruction in the flag group corresponding to a register to which an instruction has access according to the issue of the instruction that has access to the register; a flag reset section configured such that in response to the termination of access to the register by the instruction, the flag set in accordance with the issue of the instruction is reset; and a determination section configured to determine whether to have access to the register on the basis of the state of the flag group corresponding to the register being accessed. |
