11 2022 档案

size_t in C
摘要：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
posted @ 2022-11-23 15:35 大桉树 阅读(63) 评论(0) 推荐(0)
Mathematics for Computer Science1--Proofs
摘要：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
posted @ 2022-11-21 16:14 大桉树 阅读(107) 评论(0) 推荐(0)
c指针基本用法与错误使用大赏
摘要：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
posted @ 2022-11-18 00:39 大桉树 阅读(44) 评论(0) 推荐(0)
C语言运算符及其优先级汇总表口诀
摘要：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
posted @ 2022-11-16 14:19 大桉树 阅读(386) 评论(0) 推荐(0)
Interrupts & Exceptions1
摘要：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
posted @ 2022-11-13 14:40 大桉树 阅读(177) 评论(0) 推荐(0)
Address Space and Address Translation
摘要：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
posted @ 2022-11-03 22:34 大桉树 阅读(89) 评论(0) 推荐(0)
Segmentation 2 -- usage
摘要：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
posted @ 2022-11-03 14:13 大桉树 阅读(96) 评论(0) 推荐(0)
Segmentation1--basic concepts
摘要：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
posted @ 2022-11-03 10:50 大桉树 阅读(55) 评论(0) 推荐(0)