术语 | look ahead |
释义 | look ahead 先行;[预见] Basically, a feature of the CPU that permits the machine to mask an interrupt request until the following instruction has been completed. This is also a feature of adder circuits and ALUs that permits these devices to “look ahead” to anticipate that all “carries” generated are available for addition. 中央处理机的一种基本特性,在下一条指令执行完毕前允许屏蔽中断请 求。先行也是加法器电路和运算器的一种特性,它允许加法运算时对所有产生的进位预先处 理,以利于提高加法运算的速度。 |
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