looping att asm

looping.s

.text
.data

.global main

main:

  movl     $5, %ecx # loop 5 times
  
  looping:
  movl      %ecx, %esi  # move the current loop count to esi
  movl      $4, %eax    # sys_write
  movl      $1, %ebx    # stdout
  movl      $loopMessage, %ecx # message
  movl      $lMessageLen, %edx # message len.text
.data

.global main

main:

  movl     $5, %ecx # loop 5 times

  looping:
  movl      %ecx, %esi  # move the current loop count to esi
  movl      $4, %eax    # sys_write
  movl      $1, %ebx    # stdout
  movl      $loopMessage, %ecx # message
  movl      $lMessageLen, %edx # message len
  int       $0x80 # linux interrupt
  movl      %esi, %ecx  #move the count back to ecx
  cmp       $0, %ecx
  sub       $1, %ecx
  jne       looping

  movl    $4, %eax    # sys_write
  movl    $1, %ebx    # stdout
  movl    $loopEndMessage, %ecx
  movl    $lEndLen, %edx
  int     $0x80
  movl    $1, %eax
  movl    $0,  %ebx
  int     $0x80


  loopMessage:
    .ascii    "Looping\n"
    lMessageLen = . - loopMessage

  loopEndMessage:
    .ascii    "Loop has finished\n"
    lEndLen = . - loopEndMessage

  int       $0x80 # linux interrupt
  movl      %esi, %ecx  #move the count back to ecx
  loop      looping

  movl    $loopEndMessage, %ecx
  movl    $lEndLen, %edx
  int     $0x80
  movl    $1, %eax
  movl    $0,  %ebx
  int     $0x80


  loopMessage:
    .ascii    "Looping\n"
    lMessageLen = . - loopMessage

  loopEndMessage:
    .ascii    "Loop has finished\n"
    lEndLen = . - loopEndMessage