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;> The Multiboot header must be contained completely within the first 8192 bytes of the OS
;> image, and must be longword (32-bit) aligned.
MULTIBOOT_ALIGN_TO_PAGE: equ 1 << 0
MULTIBOOT_MEMORY_DESCRIBE: equ 1 << 2
MULTIBOOT_MAGIC: equ 0x1BADB002
MULTIBOOT_FLAGS: equ (MULTIBOOT_ALIGN_TO_PAGE | MULTIBOOT_MEMORY_DESCRIBE)
MULTIBOOT_CHECKSUM: equ -(MULTIBOOT_MAGIC + MULTIBOOT_FLAGS)
section .multiboot_header
align 4
dd MULTIBOOT_MAGIC
dd MULTIBOOT_FLAGS
dd MULTIBOOT_CHECKSUM
STACK_SIZE: equ (1 << 14)
section .bss
align 16
stack_bottom:
resb STACK_SIZE
stack_top:
section .text
global _start:function (_start.end - _start)
_start:
mov esp, stack_top
extern cmain
call cmain
cli
jmp $
.end:
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