learn x86 assembly

Linux x86 inline assembly-general Linux technology-Linux programming and kernel information. The following is a detailed description. Bharata B. Rao provides a general introduction to using and constructing x86 inline assembly on the Linux platform. He introduced the basic knowledge of inline

Program loading and Execution (vi)--"x86 assembly language: From the actual mode to the protection mode" Reading notes 26What can I learn from this article? Glossary of conditions for NASM When compiling with NASM, define macros with command-line options Conditional statements for Makefile overriding variable values in makefile on the Make co

Loading and running of the program (v)--"x86 assembly language: From the actual mode to the protection mode" Reading notes 25Some of the previous posts ended up parsing the code. This article is about compiling, running, and debugging the code.1. Compiling the code and writing the image fileWe both compile and write on the command line before we enter the command. When the source file is not considered trou

code specified for the ASM segment. the ANSI C specification uses the keyword __asm__ to replace the keyword ASM when using inline assembly statements, because the ANSI C keyword ASM is used for other purposes. as follows: __asm__ ("Addl $, result\n\t" "Subl $, result\n\t");The Basic ASM format provides a simple style for creating assembly code, but there are some limitations. First, all input an

C # inline-asm/Embedded x86 assembly, C # Can it be embedded in assembly? In my eyes, C # is impossible as a middle-and upper-layer Language. Why do I think the middle-and upper-layer languages place assembly code? I can see from C # retaining pointers. Many people will not believe that C # can use

Article Title: x86 inline assembly in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. X86 inline assembly in Linux　　Combine all parts　　DeveloperWorks　　Document options　　Send

To learn a compilation language, you must understand the CPU registers, addressing methods, and various commands. Let's start with the register first. GCommon intel X86 registers General Register register CS code segment of AH/Al ax (eax) AccumulatorsBH/BL Bx (EBX) base address DS Data SegmentCH/Cl Cx (ECx) Counter SS stack segmentDH/dl dx (EDX) Data es additional segment(FS) 386 new segment register(Exx)

C # can embed assembler in my eyes C # as a middle-upper language is impossible not toWhy is it that I think of the upper-middle language when I place the assembly code? Keeping pointers from C # can see that I knowThere are a lot of people who won't believe C # can use assembler code but C # will be troublesome C # can not directlyInline assembly (INLINE-ASM) is accurate that C # can only be used (AUTO-ASM

Currently, many open-source C/C ++ Based on the x86 processor environment, and the assembler included in the objective-C/C ++ compiler uses the att format. Att assembly differs from other processors (such as arm and Blackfin) in x86 instruction sets. It is significantly different from Intel's custom Assembly format. Th

X86 assembly language-Summary of learning from the real mode to the protection mode----Blog, http://blog.csdn.net/shunqiziranhao007/article/details/8522424Date, January 1, January 20, 2013---- I learned about the implementation of an operating system and found this book when searching for the protection mode. This book is about to go public recently, the author provides the PDF and other related documents

comparison.So 505 lines should insert a piece of code: pop ecx pop esi pop edi jmp.b;跳转到512行In fact, in these few lines of code, the Register ECX , the ESI EDI value inside is not important.Because in 514 rows, the ECX appropriate value is obtained;In the 512~513 line, the EDI appropriate value will be obtained;In 491 rows, the ESI appropriate value is obtained;So the above patch can be modified to: add esp,12 ;使栈平衡

6.828 of the tools have been installed, before the formal start of the experiment, you need to familiarize yourself with the use of each tool. For me this small white user, need to be familiar with more.1, x86 assembly languageSure enough, the course first made me familiar with assembly language, and provided two references. Although I am familiar with

Learn the system/software underlying mechanism of friends, compilation is one of the required courses. Because of the inherent characteristics of the low-level language, it makes it difficult to master the early learning. This article will focus on some of the most common and key assembly instructions, so that those who are still struggling to climb the "beginner".At present, the mainstream of the market in

This part actually has no good notes ... After all, it's the same as the x86 compilation on the textbook.But there's a need to pay attention. x86 compilation has two forms of writing: Intel format and T format (Csapp Page200)Intel format: is common in documentation for Microsoft and Intel. In addition, Chinese textbooks also use this formatThat's what Format:csapp is used for. In addition, GCC, objdump and

for a code snippet. What is the purpose of this?In protected mode, the code snippet is not writable, so-called non-writable does not mean that the physical nature of the memory changed, so that the memory is not written, but that the code snippet descriptor access to the corresponding memory area, the processor does not allow to write data or change data.However, if you want to modify the code snippet, is there a way? Yes, that is to create a new descriptor for the code snippet, such as a reada

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP. Files\webservice\396619ef\64fa1a2a\assembly\dl3 \d8aa258e\ea6ee7cd_64f0d001\system.data.sqlite.dll "Activation context generation failed. Dependent assembly not found microsoft.vc90.crt,processorarchitecture= "x86", publickeytoken= "1fc8b3b9a1e18e3b", Type= "Win32", version= "9.0.21022.8". Please use S

, we write our own library is static link, and the system's library generally use dynamic link. Dynamic linking does not link the function code to the executable program, and the dynamic link library is called by the operating system when the program starts. On Linux systems, the standard C dynamic library is located in the libc.so.x file, where x values represent the version of the library. In order to link the libc.so file, you must use the-l parameter of the GNU connector, which is linked in