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On the surface, protected mode and real mode is not much difference between the...
从表面上看,保护模式和实模式并没有太大的区别,二者都使用了内存段、中断和设备驱动来处理硬件,但二者有很多不同之处。我们知道,在实模式中内存被划分成段,每个段的大小为64KB,而这样的段地址可以用16位来表示。内存段的处理是通过和段寄存器相关联的内部机制来处理的,这些段寄存器(CS、DS、 SS和ES)的内容形成了物理地址的一部分。具体来说,最终的物理地址是由16位的段地址和16位的段内偏移地址组成的。用公式表示为:物理地址=左移4位的段地址+偏移地址。-On the surface, protected mode and real mode is not much difference between the two are the use of the memory, Drivers interruption and equipment to deal with the hardware, but there are many differences. We know that in real mode which has been divided into memory, each the size of 64 KB. and the addresses of 16 can be used to express. Memory of the handling of the adoption and register linked to the internal mechanisms to deal with, of these registers (CS, DS, SS and ES) with the formation of a part of the physical address. Specifically, the ultimate physical address is 16 of the 16 addresses and the addresses of migration within the composition. The use of the formula is expressed as : physical address = 4 bits of the address offset address.
- 2023-02-13 11:45:04下载
- 积分:1
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CryptoAPI2
cryptoapi componente delphi
- 2019-01-25 00:54:32下载
- 积分:1
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beupicsitenav
美图秀秀网站导航菜单是一款美图秀秀网站的二级导航菜单特效,是用纯CSS样式代码实现的,没有任何的JS和JQuery代码参与。经测试效果相当不错,源码之家推荐下载。(JQuery four level linkage classification menu)
- 2018-07-05 14:28:54下载
- 积分:1
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clip
clip&Filter,PTS和SLM三种降低PAPR的方法以及其优化算法,代码简单,注释丰富,绝对可以运行,有很大的参考价值。-clip
- 2022-01-31 04:54:16下载
- 积分:1
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11_chapter 4
r5uwayqearhefdb hgruekaywbe wieyfgwyie
- 2019-04-12 17:51:27下载
- 积分:1
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背景轮播图插件
一款实用jQuery和css3制作的炫酷弹性背景轮播图插件。该jQuery轮播图在轮播的时候(A practical jQuery and CSS3 made a cool flexible background carousel plug-in. The jQuery Rotary Graph is in Rotary)
- 2018-12-24 16:24:21下载
- 积分:1
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xiaochengxu
这是一个创建自我的仓库的小程序,用于进库,出库,搜索功能的小程序(This is a small program to create a self-warehouse, for inbound, outbound, search functions of the small program)
- 2020-06-20 04:00:02下载
- 积分:1
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demo4
说明: 利用python爬虫,运用Beautifulsoup4的相关用法。(Use python crawlers to apply the relevant usage of Beautifulsoup4.)
- 2019-07-08 14:59:21下载
- 积分:1
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cobprsition_consist_Illinois
该体系结构设计使之能够更加适应于市场上对各种服务器及工作站的日益增长的性能需求(The architecture is designed to be more responsive to the growing performance needs of various servers and workstations on the market)
- 2018-12-24 13:17:54下载
- 积分:1
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PDSI
干旱监测降水指数(PDSI)程序,使用手册一同上传。(Precipitation index for drought monitoring program, user manual with upload)
- 2010-12-29 11:02:44下载
- 积分:1