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发表于 2019-2-22 20:45:21
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①The instruction cycle is the procedure a micropercessor goes through
to precess an instruction.
在处理程序指令的过程中,程序周期是一个微调器
②First the micropercessor fetches, or reads, the instruction from memory.
首先,微处理器调用,阅读内存中指令。
③Then it decodes the instruction,determining which instruction it has fetched.
然后他们解码指令,决定哪一个指定被调用。
④Finally, it performs the operations necessary to execute the instruction.
最后,他们执行运算所必须的指令
⑤(Some people also include an additional element in the instruction cycle to store results.
有些人也在指令周期里储存一个额外的元素
⑥Here, we include that operation as part of the execute function.)
所以,我们把这个运算作为函数执行的一部分
⑦Each of these function--fentch,decode,and execute--consists of a sequence of one or more
operations
每一个函数,的调用,解码,和执行,是由一组有关联的一个或更多的运算组成的。 |
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