physical twin forward pointer的意思|示意

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实体双正向指针

实体双正向指针 ... 实体双反向指针 physical twin backward pointer 实体双正向指针 physical twin forward pointer 实体装置控制块 physical unit control block，PUCB ...

物理孪生向前指针 ... 当前指令寄存器 cir current instruction register 物理孪生向前指针 physical twin forward pointer 当前行指针 current line pointer ...