This BIOS
CodeIt consists of three assembly files and a bunch of C files.
ProgramWe only need to find which source file contains the main function and it will be OK. How can we find the BIOS code?
First, the entry point should be in the Assembly file. To run a C language program, you must use the assembly to prepare the stack, entry parameters, and other environments. Otherwise, the program cannot run.
Platform dm6437, seed Simulator
Objective: to implement the hello World Program in the BIOS system
1. Create a hello_bios Project
2. Create a TCF configuration file and save the concurrent "hello_bios" as the file name, for example:
3. Right-click "Inset log" and name it "trace ". Save the settings as follows:
4. Add a file to the project, "hello_bios.tcf" and "hello_bioscfg.cmd ". (When you add these two files, some files will be automatically
.
DsdtIs a required table located at offset 0 in the segment from TOM-128KTo TOM-64K
(Tom= Top of memory)
Rsdt -->Fadt --> dsdt
Ssdt-SecondarySystem description table
Psdt-persistentSystem description table
ThePsdt has been removed from the ACPI 2.0 specification
Madt-multipleAPIC description table
FACS-firmwareACPI Control Structure
TheFACS contains the system's hardware SignatureAt last boot, the firmware waking vector,And the global lock
WhenThe system boots, ospm uses the e820
usingInstancesOf, you can also useSwbemservices.execquerymethod,ExecQueryMethod SupportWQLQuery Language. ' WQLthe query language has aSQLconsistent syntax, very powerful.'we can visualize the thought of eachWMIobject is a database."Table"'like here, we can use"SELECT * from Win32_BIOS". Set objswbemobjectset=objswbemservices. InstancesOf ("Win32_BIOS")Dim strbiosinfo Strbiosinfo=""' SWbemObjectused to denote aWMIObject'here it is aWin32_BIOSinstance, which meansobjSWbemObjectis aWin32_BIOSobje
Ah, nothing free to install the dual system, according to the evening tutorial installed half a day did not succeed, later only to know that their own computer problems.UltraISO making ubuntu U-disk boot disk http://www.cr173.com/html/50530_1.htmlFirst look at what type of bios your computer is.Win+r input Msinfo32There are two types, uefi and traditional. My Computer is UEFI.Period to find a more reliable tutorial. Http://jingyan.baidu.com/article/e3
official websiteHttp://www.sspezz.comOfficial website:Http://yjcz.sspezz.com/DSXPEinst2.exeBaidu Cloud:Http://pan.baidu.com/s/1c1q1KmkFile Size: 649 Mb1. There are three PE select "Win2003pe, Win8pe 32-bit, WIN10PE 64-bit" Kernel small load fast! 2. No promotion software, you can set up a personal homepage. 360 Affiliate Promotion homepage more convenient3.WIN10PE supports PE internet function, some sound card support, 10PE theory supports all m.2 series SSD recognition. 4. One click Fool make w
System Download: https://msdn.itellyou.cn/Linux system Download (CentOS): https://www.centos.org/Different brands of computer startup shortcut keys See (bottom): http://dabaicai.csmd4.com/Dell computer startup shortcut keys:F2=setupF10=utility MenuF11=boot MenuF12=PXE MenuWhen the Dell logo is on, up to two times, press F11 to enter the BIOS boot sequence settings, press more easily to lock the keyboardSystem download and
Windows Server BIOS boot also has floppy disk, generally installed Vmtools, must be disabled in the BIOS.As shown: Legacy diskette a--The meaning of the traditional floppy disk A.650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M00/06/95/wKiom1m6VwCDUIgmAAB8jS8XsPc257.jpg-wh_500x0-wm_ 3-wmp_4-s_2297072436.jpg "title=" floppy.jpg "alt=" Wkiom1m6vwcduigmaab8js8xspc257.jpg-wh_50 "/>Let the cursor move to "1.44/1.25 MB ..." and then, ' enter ', in
Now a lot of novice computer friends just think they can not install the system, also dare not to install the system. Always said will not set up the CD-ROM drive, will not format the hard drive, so now I work hard to grasp these pictures, I hope the Novice computer friends can use, as early as possible to learn their own independent loading system. Want to learn to install the system is best to have the system CD-ROM, because the hard disk installation or Onekey installed system is not as good
1, the mouse to the upper right corner, in the pop-up window select "Settings", as shown in the following figure:
2, at the bottom of all buttons, select "Change computer settings," as shown in the following figure:
3, select "Reboot Now" in the General option, as shown in the following figure:
4, in the Last pop-up window select "Turn off the computer", waiting for the computer to completely shut down, as shown in the following image:
5, the last is a very import
Knowledge Point Analysis:
Different models of the computer, the BIOS setup inside the dual graphics card mode of the interface, operating mode, may be slightly different, but very similar. Several common ways are listed below. If you do not find the desired model in the following list of models, please find a similar reference operation.
Operation Steps:
Summary1. IdeaPad y480/s300/s400/s405/z400/z5002. IdeaPad y460a/y560a/v360a/v460a/u460a3. Lenov
Set on a regular boot, the computer automatically open every day, you can set up in the BIOS. So, how to set a timed boot?
After entering the BIOS, select Power Management setup to press "Enter" and select the resume by Alarm (timed boot) option under PM Wake up events.
Set month alarm to Na, on behalf of the computer will automatically boot on a daily basis, some motherboards for every day.
Setti
laptop win7 system computer for battery calibration in BIOS
The specific methods are as follows:
1, first in the Win7 system boot into the BIOS Setup Panel, and then switch to the "Power" tab. Then move the cursor over the Start Battery Calibration tab, and then press the "Enter" key to perform the action.
2, and then according to the above prompts, the notebook computer connected to the power sup
A Acer notebook, just get into the system, is running slowly, the boot fan sound big, out of the wind blowing out, so the demolition machine found that the fan out of the wind, export to the blocked, and so cleaned up and then put back, when the boot will appear:
Platinumpas-preboot authenticalion Services Verify
Please insertvalid smartcard
Can't get into the system, even the BIOS is not going to go, depressed, online check to know that this machi
When the computer's BIOS settings are operating, the computer suddenly crashes. What should we do about this?
When setting the BIOS, the crash, mostly because the motherboard cache has problems, or the motherboard is not good heat dissipation. After the computer crashed, you can touch the CPU around the component is very hot. In this case, only to the computer to replace the more powerful fans, the
1, when the boot, Non-stop press F2, you can access the BIOS menu. First see the Computer Information menu bar, including computer model, BIOS version, as well as CPU, memory, hard disk, optical drive and other major hardware information;
2, the following is the hardware configuration settings. Mainly include: time, date settings, wireless network card, hard disk interface mode, video card, pow
Method One:
1. Shut down the computer in the most original way (Windows XP has done this before)
2. Waiting for the boot to appear Samsung logo is we quickly press the "Home" button.
3. This way the system will automatically have the BIOS interface as shown in the following illustration:
Method Two:
1. Do not turn off the computer in the boot state of the windows8 we press the key combination "WIN" + "C" Open the Start menu
2. Click the "Setting
Failure Phenomena:
Video card setup options in BIOS [IGD] [PEG/IGD] [PEG/PCI] [pci/peg] [PCI/IGD]
How to choose?
Solution:
Each option has the following meanings:
The [IGD] system First initializes the IGD (built-in graphical display).
[PEG/IGD] The system first initializes the peg (PCI Express graphics card). If the PCI Express graphics card is not available, initialize the IGD,
[PEG/PCI] The system first initializes the peg (PCI Express gra
Lenovo laptop WIN8 system changed the General BIOS settings of WIN7, win8win7
Many of my friends have bought a new laptop with a Win8 system, but I found that this system is so hard to use and tangled. Let's change it to WIN7. This method can be used in the V, B, K, E, M series notebook: such as vrouters, V580, bda-, B580, B490, B590, K29, K49, E49, M490, and M495.
To change WIN8 to WIN7, we need to set BIOS
One of the following websites (http://wiki.osdev.org/BIOS)
BiOS CILS may use interrupts, which means that you need to forward irqs or map the pic back to its original configuration.
BiOS may be used in middleware, that is, after the middleware is used, you need to reset the PIC to the original middleware.
BiOS
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