钱方如遇挡道的物体或行走的顾客，机器人身上的运动传感器可对其发出暂停指令。
They have motion sensors designed to stop when objects or people are in their way.
而且，如果在收件箱没有可用数据，rdch指令就会一直暂停，直到可用数据出现。
And, if there is no value available in the inbox, the RDCH instruction simply stalls until there is one.
暂停（Stall） ——处理器不开始执行新指令处的时钟周期。
Stall -- A clock cycle where the processor does not begin a new instruction.
依赖性暂停(Dependencystall)——这种暂停之所以会发生是因为下一条指令的一个操作数需要上一条尚未完成的指令产生的值。
Dependency stall — This is a stall that occurs because one of the operands of the next instruction requires a value from a previous instruction that has not yet completed.
要想让分支提示变得非常有效(这样分支就根本不会暂停了)，就必须设置至少4个指令取出组和分支指令之前的11个周期。
For a branch hint to be most effective (so that the branch does not stall at all), it must be set at least four instruction fetch-groups plus 11 cycles before the branch instruction.
当下一条指令符合指定的样式的时候暂停。
Pause when next command matches one of the specified patterns.
当下一条指令符合指定的样式的时候暂停。
Pause when next command matches one of the specified patterns.
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