MBALIGN equ 1 << 0
MEMINFO equ 1 << 1
FLAGS equ MBALIGN | MEMINFO
MAGIC equ 0x1BADB002
CHECKSUM equ -(MAGIC + FLAGS)

section .multiboot
align 4
  dd MAGIC
  dd FLAGS
  dd CHECKSUM

section .bss
align 16
stack_bottom:
resb 16384
stack_top:

section .text
global _start:function (_start.end - _start)
_start:
  mov esp, stack_top
    extern kernel
  call kernel
  cli

jmp $

.end: