test.s

test:
  push %rbp
  mov %rsp, %rbp

  push %rax # d
  push %rbx # b
  push %rcx # c
  push %rdx # Changed by imul
  push %rsi # $2
  push %rdi # a
  pushf

  mov 16(%rbp), %rbx

  # d = 10, d stored in rax
  mov $10, %rax
  # c = 1
  mov $1, %rcx

  # a = b + c, a stored in %rdi
  mov %rbx, %rdi
  add %rcx, %rdi

  mov $10, %rax
  mov $2, %rsi
1:
  # d = d * 2
  imul %rsi
  cmpq $100, %rax
  jl 1b

  # if (b == 10)
  cmpq $10, %rbx
  jne 2f
  # a = 140
  mov $140, %rdi
2:
  popf
  pop %rdi
  pop %rsi
  pop %rdx
  pop %rcx
  pop %rbx
  pop %rax
  leave
  ret