The part of execution in which an operand or instruction is read from main storage and written into a control unit or arithmetic unit register.
执行过程中的一个阶段所需的时间，在此期间，计算机从主存储器中取出指令或操作数，并将其存入控制器或运算器的寄存器中。
A procedure in which an instruction is broken down into the microcode operations necessary for its execution by a control unit.
一种处理过程，其间由控制器将一条指令分解成为它的执行所必须的微码操作。
A procedure in which an instruction is broken down into the microcode operations necessary for its execution by a control unit.
一种处理过程，其间由控制器将一条指令分解成为它的执行所必须的微码操作。
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