, and the G struct contains the m pointer. The sequence of instructions to load g and m using the CX register is as follows:
get_tls(CX)MOVL g(CX), AX // Move g into AX.MOVL g_m(AX), BX // Move g->m into BX.
64-bit Intel 386 (AMD64)
The assembly that accesses the G and m pointers is similar to the 386, except that the instruction uses movqinstead of movl:
get_tls(CX)MOVQ g(CX), AX // Move g into AX.MOVQ g_m(AX), BX // Move g->m into BX.
Arm
Registers R10 and
table: There is a route to each destination. Such a table is called a route table. Basic concepts:OSPF regards the entire network (subnet on the Internet or other types of networks) as an autonomous system () In each as, several physically adjacent routers (routers) and networks form an area. These areas are generally non-intersecting and divide the entire. Is an example of a typical Autonomous System Division:
Rxx represents the router, N * represents the network, 1. R1, R2, R3, R4, and N
system mode, are called exception modes. 5.2. Register usage rules
The subroutine passes the parameter [2] between the registers through the register R0-R3. At this time, register R0-R3 can be recorded as A1-A4. The invoked subroutine does not need to recover the contents of the register R0-R3 before returning. If the number of arguments is more than 4, the remaining Word data is passed through the data stack. Our Hello world! example is to pass the standard output file description, the string
An explanation of the ARM function call and return process
Atpcs suggested that no more than 4 formal parameters of the function, if the number of parameters is less than or equal to 4, the parameters are passed by R0,R1,R2,R3 four registers; If the number of formal parameters is greater than 4, the portion greater than 4 must be passed through the stack. 0x00 Simple Code
#include
The function call and the return procedure are
When the save site has only 1 registers,ADD
/repository/android-ndk-r11b-windows-x86_64.zipMac OS X 64-bit:http://dl.google.com/android/repository/android-ndk-r11b-darwin-x86_64.zip
Linux 64-bit (x86): Http://dl.google.com/android/repository/android-ndk-r11b-linux-x86_64.zip
NDK_R11 (March 2016)Windows 32-bit:http://dl.google.com/android/repository/android-ndk-r11-windows-x86.zipWindows 64-bit:http://dl.google.com/android/repository/android-ndk-r11-w
atCode
; Define Ram space for the page tables:
;
Phybase equ 0x30000000; physical start
PTS equ 0x30010000; 1st level page table address (phybase + 0x10000)
; Save room for interrupt vectors.
We can see that the page table constructed by the startup function of the bootloader is stored at the address starting from 0x30010000 of the sdram. Then let's look at the code below starup. S.
; Compute physical address of the oemaddresstable.
20 Add R1
Fun_fun ...Main:return after calling longjmp, ret = 8.1, Simple introduction of x86_64 registerX86-64 General Register with respect to X86_32, the new addition%R8 to%r15, the original x86_32 of 8 (the original 32-bit register in the name of E to R), a total of 16 registers. The X86-64 has 16 64-bit registers, respectively:%rax,%rbx,%rcx,%rdx,%esi,%edi,%rbp,%rsp,%r8,%r9,%r10,%r11,%r12,%r13,%r14,%r15.which%rax is used as a function return value.%RSP st
Title Link: http://acm.zjut.edu.cn/onlinejudge/problem.php?cid=1101pid=8Surface:
Problem I:no2 Time
limit: 1 Sec
Memory Limit: MB
Submit: 342
Solved: 23
[Submit] [Status] [Web Board]
DescriptionKnown to have a city of n people, the probability of having a zombie disease is p. You go to the test and check it out is positive. The doctor told you this test, the person who has the disease detects positive probability is R11
printed through the function __task_pid_nr_ns in the task_state inline function.In Ida, press the shortcut key G to jump to the function c0187f88 (__task_pid_nr_ns) function, press X to refer to the search box, where the function c02764b8 (proc_pid_status) is found.View the local call asCan see the results of the call will be stored in R11, so modify the command mov R11, R0 for mov
= (int) k;y
Xx=x*widthscale;
Yy=y*heightscale;
if (xx1e-8) {
xx=0;
}
if (xx>m_impicture. GetWidth ()-2)
xx= (float) (m_impicture. GetWidth ()-2);
if (yy1e-8)
yy=0;
if (yy>m_impicture. GetHeight ()-2)
yy= (float) (m_impicture. GetHeight ()-2);
a= (int) xx;
b= (int) yy;
The R, G, b values of the corresponding pixels are obtained with bilinear interpolation, and the R, G, b values of the new pixels are
int
Web applications.
Two days, two ideas. One is a device that can run applications locally. This method is relatively old, but it can attract the attention of a large number of developers with the help of the rapid growth of smart phones. The other is a cloud computing-based product, where the server at the other end of the network executes tasks, and all you have is a powerful "remote control.
Development Space
However, Google believes that both concepts have room for development. Sergey Brin,
Run Linux on ChromeOS
Speaking of ChromeOS, most people may first think of Google Chrome, which is not an operating system but a popular browser. In fact, ChromeOS is also a product of Google, a Linux-based operating system developed by Google. Recently, the ChromeOS system has ushered in another practical update? According to oisBeaufort, the new version of ChromeOS supports Linux operating system running in windows.
Linux running on ChromeOS (picture from Google +)
GoogleChromeOS also provi
browser and more. chrome OS is the proprietary version of the open-source Chromium OS which you can freely try out.
Chromebooks, released on June 15th, have been stored ed with mixed reviews with some sites deeming them a complete failure while others calling them a great product. engadget, in its review of the Samsung-based Chromebook, gave it a 8/10 rating. having said that, a Chromebook is not the only
extension, Chrome OS supports running Linux directly in windows. Before using this extension, you must set your Chromebook to the developer Mode ).
As a cloud operating system, Chrome OS adheres to the fast, concise, and secure features of Chrome browsers. Two computers with Chrome OS can synchronize data. But there are still many professional users who want to run Linux in their own systems. Crouton Chrome extension makes it a reality.
Previously,
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