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    • 9. 发明授权
    • System and method of reducing the number of copies from alias registers to real registers in the commitment of instructions
    • 在指令承诺中减少从别名寄存器到实际寄存器的份数的系统和方法
    • US06910121B2
    • 2005-06-21
    • US10039113
    • 2002-01-02
    • Guillermo SavranskyRonny Ronen
    • Guillermo SavranskyRonny Ronen
    • G06F9/38G06F9/34
    • G06F9/384G06F9/3836G06F9/3855G06F9/3857
    • A processor system and method that reduces the number of register value copying made from alias registers to corresponding real (architectural) registers. The method entails determining whether to copy the register value generated by executing an instruction from the alias register to the real register at the time the reorder buffer entry associated with the alias register is needed for a new instruction. If before the reorder buffer is needed for a new instruction, an interim instruction resulted in a new register value for the real register, then the original register value would be invalid at the time the reorder buffer entry is needed for the new instruction. Thus, there would not be a need to copy the original register value to the real register. The reduction in copying can make the processor system consume less power.
    • 一种处理器系统和方法,可将从别名寄存器进行的寄存器值复制数目减少到相应的实际(体系结构)寄存器。 该方法需要在新指令需要与别名寄存器相关联的重排序缓冲器条目时确定是否将通过执行来自别名寄存器的指令生成的寄存器值复制到实数寄存器。 如果在新指令需要重新排序缓冲区之前,临时指令将导致实际寄存器的新寄存器值,则在新指令需要重新排序缓冲区条目时,原始寄存器值将无效。 因此,不需要将原始寄存器值复制到实际寄存器。 复制的减少可以使处理器系统消耗更少的电力。