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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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box frame _ _ combination of rolling bo x frame _ _ combination of rolling List...
列表框_组合框_滚动条
列表框_组合框_滚动条
-box frame _ _ combination of rolling bo x frame _ _ combination of rolling List Box _ _ rolling box combination of the list box frame _ _ combination of rolling box _ _ rolling portfolio of the box
- 2022-08-23 21:32:01下载
- 积分:1
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根据协议在ed2000搜索电驴,下载邮件格式可诉..
eMule在ED2000协议下的搜索,下载的消息格式,可以很好的帮助学习eMule的源代码-eMule in ED2000 search under the agreement, download the message format can be very helpful in learning the source code of eMule
- 2022-02-25 00:46:47下载
- 积分:1
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Gateway CMPP3.0/CMPP2.0 support, which can be configured in the configuration fi...
CMPP3.0/CMPP2.0网关都支持,可以在配置文件里面配置。-Gateway CMPP3.0/CMPP2.0 support, which can be configured in the configuration file.
- 2022-04-29 19:29:42下载
- 积分:1
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4头激光灯
舞台灯4头激光效果灯:基于STC单片机控制的激光效果灯,外围加75176控制芯片与控台连接,实现舞台灯用DMX512信号通信进而控制从机动作。
- 2022-07-01 14:24:03下载
- 积分:1
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this programs gives the fuctionality of 1 bit adder
this programs gives the fuctionality of 1 bit adder
- 2022-08-22 11:56:58下载
- 积分:1
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"SHENG
《圣剑英雄传II-双刃剑》(源程序)编译时需要DirectX7以上版本支持。-"SHENG- JIAN Heroes II-double-edged sword" (source) compiler need support DirectX7 versions.
- 2023-01-02 21:45:04下载
- 积分:1
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controls name : Date Controls
控件名称:日期控件-controls name : Date Controls
- 2022-03-06 03:02:20下载
- 积分:1
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DOS下的图形界面的女王与# 39;S八小游戏。程序联合国…
Dos下图形界面的八皇后小游戏。 本程序在TC++3.0下编译调试通过!采用了Borland公司提供的图形库Graphics. 为了能使本程序脱离c/c++环境独立运行,我将图形驱动 EGAVGA.BGI以及字库TRIP.CHR和SANS.CHR均转换为相应的.obj文件,然后链接到可执行文件EIGHTQUEEN.EXE中!-Dos under a graphical interface Queen"s small eight games. The procedures under the TC 3.0 compiler debug through! Borland used to provide the graphics library Graphics. In order to enable this process from the c/c environment operate independently, I will drive EGAVGA.BGI graphics and font TRIP.CHR and SANS.CHR were converted to the corresponding. Obj file, and then link to the executable file which EIGHTQUEEN.EXE !
- 2023-03-08 20:25:03下载
- 积分:1
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桌面小游戏,十分适合办公室消遣娱乐.游戏方法:5子连线就OK!颜色:红,黄,蓝,绿,紫等等.建议色盲.色弱不要去玩...
桌面小游戏,十分适合办公室消遣娱乐.游戏方法:5子连线就OK!颜色:红,黄,蓝,绿,紫等等.建议色盲.色弱不要去玩-desktop small game that is well suited to the Office of entertainment. Game : 5-link on the OK! Colors : red, yellow, blue, green, purple and so on. Recommendations color blindness. Cure will not play
- 2022-02-14 14:57:03下载
- 积分:1