[bits 32] [extern kernel_init] MBOOT_PAGE_ALIGN equ 1<<0 MBOOT_MEMORY_INFO equ 1<<1 MBOOT_HEADER_MAGIC equ 0x1BADB002 MBOOT_HEADER_FLAGS equ MBOOT_PAGE_ALIGN | MBOOT_MEMORY_INFO MBOOT_CHECKSUM equ -(MBOOT_HEADER_MAGIC + MBOOT_HEADER_FLAGS) call kernel_init jmp $ align 4 multiboot_header: dd MBOOT_HEADER_MAGIC dd MBOOT_HEADER_FLAGS dd MBOOT_CHECKSUM