PPE用载入和存储指令访问主存储器(有效地址空间)，可以在主存储器与内容可以缓存的私有寄存器文件之间移动数据。

The PPE accesses main storage (the effective-address space) with load and store instructions that move data between main storage and a private register file, the contents of which may be cached.

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当CPU下次读取相同地址时，数据将从高度缓存中而不是主存储器中传出。

The next time the CPU reads the same address, the data is transferred from the cache memory instead of from main memory.

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