AT&T汇编语言与GCC内嵌汇编简介

1 AT&T与INTEL的汇编语言语法的区别.........................................3 1.1 大小写...........................................................3 1.2 操作数赋值方向...................................................3 1.3 前缀.............................................................3 1.4 间接寻址语法.....................................................4 1.5 后缀.............................................................4 1.6 指令.............................................................5 2 GCC内嵌汇编.............................................................5 2.1 简介.............................................................5 2.2 内嵌汇编举例.....................................................5 2.3 语法.............................................................7 2.3.1 汇编语句模板.................................................7 2.3.2 输出部分.....................................................7 2.3.3 输入部分.....................................................8 2.3.4 限制字符.....................................................8 2.3.5 破坏描述部分................................................14 2.4 GCC如何编译内嵌汇编代码.........................................19 3 后记....................................................................20