主题: 软件 XP 64问题
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旧 Mar 23rd, 2009, 21:45     #10
白野猪
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作者: 1newcomer 查看帖子
CPU访问外围设备也需要地址的呀

其实应该从上往下说，4G到3.2G地址分配给硬件了，剩下3.2G到0是给内存的，内存少呢，1G, 2G, 3G的，不会有浪费，装4G内存呢，只能用到3.2G
3.2到4的部分，不是分配给硬件了吗，为什么说“浪费”？

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