在这种情况下，有效地址总是分为两个32位的寄存器；高位寄存器是可选的，如果没有指定，就会被当作零进行处理。
The effective address is, under the hood, always split into a pair of 32-bit registers; the high-order register is optional and if it's not specified, it is treated as zero.
在两种模式下，有效地址计算将使用所有64位相关寄存器(GPR、LR、CTR等)并生成64位结果。
In both modes, effective address computations use all 64 bits of the relevant registers (GPRs, LRs, CTRs, etc.) and produce a 64-bit result.
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.
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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