# Constants for multiboot
	.set ALIGN,	1<<0		 # align on page boundaries
	.set MEMINFO,	1<<1		 # memory map
	.set FLAGS,	ALIGN | MEMINFO	 # for multiboot 'flag' field
	.set MAGIC,	0x1BADB002	 # magic number for bootloader
	.set CHECKSUM,	-(MAGIC + FLAGS) # checksum to prove we're multiboot

	# Declare header for multiboot
	.section .multiboot
	.align 4
	.long MAGIC
	.long FLAGS
	.long CHECKSUM

	# Reserve stack for initial thread
	.section .bss
	.align 16
stack_bottom:
	.skip 16384 # 16K
stack_top:

	# Kernel entry
	.section .text
	.global _start
	.type _start, @function
_start:
	movl $stack_top, %esp

	# Call global constructors
	call _init

	# Start kernel
	call kern_main

	# Hang if kernel returns
	cli
1:	hlt
	jmp 1b
	.size _start, . - _start