在linux下用AT&T汇编格式编写的helloworld程序

#hello.s

.data

        msg : .string "Hello, World!\n"

        len = . - msg

.text

.global _start

_start

         movl $len, %edx

         movl $msg, %ecx

         movl $1, %ebx

         movl $4, %eax

         int $0x80

        

         movl $0, %ebx

         movl $1, %eax

          int     $0x80

#end

编译:

as -o hello.o hello.s

连接:

ld -s -o hello hello.o

运行:

./hello