汇编分配存储

<pre><code class=”lang-bash”>section .text
global _start ;must be declared for linker (gcc)

_start: ;tell linker entry point
mov edx,1 ;message length
mov ecx,choice ;message to write
mov ebx,1 ;file descriptor (stdout)
mov eax,4 ;system call number (sys_write)
int 0x80 ;call kernel

mov eax,1 ;system call number (sys_exit)
int 0x80 ;call kernel

section .data
choice DB 'y'
</code></pre>