assembly language book

explained. ------- Figure 6. Example 1: Why does it happen to be a correct recursive analysis -----Although the results in the first question are correct, when printf reads the Add_Recursion return value, it does not read the result of the first recursive call, but the result of the third recursive call of return B (the third recursive return, stored in the eax register ). In the subsequent recursive return, it happens that eax is not changed. Therefore, using recursion in this way (although re

Any operating system written in a high-level language, the kernel source code is always a small part of the code is written in assembly language. Readers who read the Unix Sys v source know that there are about 2000 lines of code written in assembly language in their core co

The following two are a FOO.ASM (assembly language file), BAR.C (c file) First to understand why C language can call assembly language, and why assembly language can call C. In fact, wh

Before read a lot about Uboot analysis, which has said to the C language, ready to run the stack. And in Uboot's START.S assembly code, for system initialization, you also see a stack pointer that initializes this action. But I've never seen anyone say system initialization to initialize the stack, that is, assign values to the stack pointer sp correctly, but never see anyone explain why the stack is init

Reproduced from: Chinaunix ForumOriginal link Address: http://bbs.chinaunix.net/thread-2304248-1-1.htmlBefore read a lot about Uboot analysis, which has said to the C language, ready to run the stack. And in Uboot's START.S assembly code, for system initialization, you also see a stack pointer that initializes this action. But I've never seen anyone say system initialization to initialize the stack, that is

Any operating system written in a high-level language, the kernel source code is always a small part of the code is written in assembly language. Readers who read the Unix Sys v source know that there are about 2000 lines of code written in assembly language in their core co

In school, most of the students may be the language of the introduction of the C language, but often more or less will learn the assembly language. However, at that time, we felt that the compilation was really too difficult, and the meaning seems to be small.And now, after work, find some truth, the more basic, the mo

Assembly Language, C language, and implementation- --Imwtr assembly language, and C language, implementation- -- meaning Description: use an assembly

This is my first time to write articles on a blog! Today is the first day of graduation. I went to Suzhou to work as a BIOS in 6th. But I still don't know how to do the BIOS or what to do. I know that BIOS is Basic Input Output System, but I do not know anything about BIOS. I have a naive idea: running the BIOS into a powerful and tiny operating system makes it not as difficult as the legend suggests. In this way, I need to be able to write the operating system. I am currently reading Yu Yuan's

/************************************************************************************************************** **** Original address: http://bbs.chinaunix.net/thread-2304248-1-1.html Description: Why the C language (function call) requires a stack, but assembly language does not need a stack. ********************************************************************

The No. 0 chapter is written in front I don't want to exaggerate or belittle assembly language. But I want to say that assembly language changed the history of the 20th century. Compared to predecessors, our generation of programmers is happy enough, because we have a wide range of programming languages, we can operat

The game usually contains a variety of functions, such as combat system, UI rendering, economic system, production system, etc., each system contains a variety of sub-functions, such as damage determination, cast, use props, character movement, trading between players and so on. These game functions often have conditional judgments (such as damage determination), loops (traversing item lists, playing game animations), etc. in code implementations.In the reverse process, if the corresponding gram

I. Statement Although most of Linux's core code is written in C language, but the inevitable part of it is written in assembly language. Some assembly language code is written directly in the assembly source program, especially th

How to invoke variables in the assembly in C language. Assembly language: Declaring a global variable . Globl _end_ofs _end_ofs: . Word _end-_start C language: Declare the variable, and then call the variable void Board_init_r (gd_t *id, ulong dest_addr) { ......

technology, everyone has their own set of methods. If there is no right or wrong, I still share my consistent point of view: I only want to read novels that are useful to me and useless. First, why is the title of this article "An assembly language" emphasized ". I think everyone knows that the Assembly Language is ju

When you use Embest IDE to debug B0, you want to operate internal registers in the C environment. I checked a lot of information, but the compilation was always fail. According to the _ ASM format in the book, it is still wrong. Later, after one day and one night of hard work, we finally achieved it. Now, let's take a look at it ~~On the Internet, we are talking about 80x86 embedded assembly, which is not c

technology, everyone has their own set of methods. If there is no right or wrong, I still share my consistent point of view: I only want to read novels that are useful to me and useless. First, why is the title of this article "An assembly language" emphasized ". I think everyone knows that the Assembly Language is ju

C memory management has 1) variable management. Except for global variables and static variables (variables defined in any function do not appear in C language and static variables have static keywords), they are managed in the stack, go to the function to create these variables, and exit the function to destroy them. 2) function call, which is also in the stack. 3) memory dynamically allocated using the library function. The function in the C library

Linux Assembly Language Development Guide 2-General Linux technology-Linux programming and kernel information. For details, see the following section. Linux Assembly Language Development Guide Edit: Ice Angel Author: Source: ChinaUnix 2005-6-3 I. Introduction As one of the most basic programming languages,

Watching the programmer's interview today, I happened to see the efficient access to arrays and pointers, idle boredom, wrote a paragraph of small code, a simple analysis of C language behind the compilation, may be a lot of people only pay attention to C language, but in practical applications, when there are problems, sometimes through the analysis of assembly