A CPU executes instructions at 800 MIPS. Data can be copied 64 bits at a time, with each 64-bit word copied costing six instructions. If an incoming frame has to be copied twice, how much bit rate, at most, of a line can the system handle? (Assume that all instructions run at the full 800-MIPS rate.) 18 .一个 CPU 以 800 MIPS 执行指令。每次可以复制 64 位数据,对于每 64 位字复制需要六条指令。如果传入的帧需要复制两次,系统一行最多可处理多少比特率?(假设所有指令运行在全 800 MIPS 速率。)