Processor operations mostly involve processing data. This data can be stored in memory and accessed from thereon. However, reading data from and storing data into memory slows down the processor, as it involves complicated processes of sending the da…

android ARM 汇编学习—— 在 android 设备上编译c/cpp代码并用objdump/readelf等工具分析 adb putty 连上手机,用busybox vi 写一个 helloworld c root@HM2014813:/data/local/tmp # busybox vi hello.c #include <stdio.h> int main(int argc, char* argv[]){ printf("Hello ARM World\n"…

注:写在前面,这是一篇翻译文章,本人的英文水平很有限,但内嵌汇编是学习操作系统不可少的知识,本人也常去查看这方面的内容,本文是在做mit的jos实验中的一篇关于内嵌汇编的介绍.关于常用的内嵌汇编(AT&T格式)的语法都有介绍,同时在篇末还列出了常用的一些内嵌汇编代码的写法.看了很有益处.大牛就不必看了.当然非常欢迎对文章中的翻译错误或不当之处进行指正. ps:这是这篇文章的原地址:http://www.delorie.com/djgpp/doc/brennan/brennan_att_inlin…

This's my first version.The logic is simple, just the selection sort. I spent much time learning how to write AT&T assembly on 64-bit Linux.almost all books just talk about 32-bit assembly. Such as registers, on 64-bit linux, rax, rbx, rcx..... are a…

je if equal then jmp jg if the second gt the first, then jmp jge if the second ge the first, then jmp jl if the second lt the first, then jmp jle if the second le the first, then jmp AT&T 64-bit assembly how to call library like printf? The code show…

By brant-ruan Yeah, I feel very happy When you want to give up, think why you have held on so long. Just fight. Somebody may ask you: Why would you want to do that? Yeah, because I want to know how it works. Assembly language programming is about mem…

http://www.zembedded.com/cortex-m3-registers-in-depth/ Thanks for the overwhelm response you show in our first tutorial on Cortex_M3 series controllers. This is going to be the second tutorial, where we are going to discuss about the registers availa…

Code: http://www.atelierweb.com/calling-64-bit-assembly-language-functions-lodged-inside-the-delphi-source-code/ http://www.codeproject.com/Articles/262819/Finally-Bit-Delphi-is-here-and-with-Bit-BASM One thing you will notice immediately by looking…

ref:http://www.coranac.com/tonc/text/asm.htm 23.1. Introduction Very broadly speaking, you can divide programming languages into 4 classes. At the lowest level is machine code: raw numbers that the CPU decodes into instructions to execute. One step u…

iOS Assembly Tutorial: Understanding ARM Do you speak assembly? When you write Objective-C code, it eventually turns into machine code – the raw 1s and 0s that the ARM CPU understands. In between machine code and machine code, though, is the still hu…