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51问答网 > 地址总线8位宽，读入cpu最大数字是多少

地址总线8位宽，读入cpu最大数字是多少

2025-03-15 09:47:13

推荐回答（2个）

回答1：

。。2的8次方，算一下是多少啦，应为 2^8 = 256

回答2：

16位的8086 CPU 为了把地址空间扩大到1M，所以必须采用20位地址线，因此产生了16位到20位的映射。

段寻址就是解决这个问题。

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