x86 assembly book

performance rather than portability or ease of debugging. This document is about x86 assembly language, since the word "assembly language", if not explicitly expressed ia32 on the x86 assembly language. Assembly language is a ki

numberRequirement: Descriptor index in segment selection sub * 8 + 7 If the requirement is not met, an exception of 13 is generated, and the original value in the segment register is unchanged.(2) Check the category of the descriptorThe original Book table 12-1, I am here to draw a copy.Y: Indicates allowN: Indicates not allowedExample: SS only allows read and write data segments to be loaded.Also, be aware that: Code snippets are not writab

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 command line The 13th chapter exercises the

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

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

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

write online assembly in VC, try not to touch the segment register! The first reason for this conclusion is that the DS, es, and SS of VC-generated applications are the same. In other words, the data segment, additional segment, and stack segment of the entire application are in the same address, so you do not need to change them at all. The second reason is that, because of the protection mode, each segment has a size of 4 GB, and all data can be ea

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

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

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

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

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

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