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size_t is an unsigned integral data type which is defined in various header files such as: <stddef.h>, <stdio.h>, <stdlib.h>, <string.h>, <time.h>, <w 阅读全文
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Simply put, a proof is a method of establishing truth. Like beauty, “truth” sometimes depends on the eye of the beholder, and it should not be surpris 阅读全文
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一，所感拾遗 1，使用二级指针 **p 的目的？ 在函数中改变一级指针的内容。通过解引用二级指针实现。 f(**p){ *p = ....... } 2,指针是什么？ int *p , p即是指向int的一个指针 指针变量中存储的内容是地址，也即是指针。cpu利用该地址寻址内存空间。 3，如下 in 阅读全文
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圆下箭头一顿号 非凡增减富强针地长 三乘除，四加减，五移位 千万别把鱼忘记，它在盛饭的厨子里 小灯大灯灯灯不等 爸喂鱼，舅疑惑，裸鸡也疑惑 十三姨，十四父，十五逗，兜到低 “圆下箭头一顿号”指的是第15级的运算符。其中圆指的是运算符（），下指的是下标运算符[]，箭头指的是指向结构体成员运算符->，顿 阅读全文
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一，定义 An interrupt is usually defined as an event that alters the sequence of instructions executed by a processor. Such events correspond to electrica 阅读全文
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Physical Address Space In protected mode, the IA-32 architecture provides a normal physical address space of 4 GBytes (232 bytes). This is the address 阅读全文
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The segmentation mechanism supported by the IA-32 architecture can be used to implement a wide variety of system designs. These designs range from fla 阅读全文
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There is no mode bit to disable segmentation. The use of paging, however, is optional. These two mechanisms (segmentation and paging) can be configure 阅读全文