no-a.asm

section     .text
global      _start

_start:                                         ;tell linker entry point

    mov     edx,len                             ;message length
    mov     ecx,msg                             ;message to write
    mov     ebx,1                               ;file descriptor (stdout)
write:
    mov     eax,4                               ;system call number (sys_write)
    int     0x80                                ;call kernel
    jmp     write

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

section     .data

msg     db  'n',0xa                             ;'n'
len     equ $ - msg                             ;length of 'n'