MBALIGN     equ  1<<0                   ; align loaded modules on page boundaries
MEMINFO     equ  1<<1                   ; provide memory map
FLAGS       equ  0                      ; this is the Multiboot 'flag' field
MAGIC       equ  0x1BADB002             ; 'magic number' lets bootloader find the header
CHECKSUM    equ -(MAGIC + FLAGS)        ; checksum of above, to prove we are multiboot
section .multiboot
align 4
    dd MAGIC
    dd FLAGS
    dd CHECKSUM

section .text

_start:
main: