; second stage boot loader C startup
	cpu 8086
	bits 16
	section .startup

; memory reserved at the top of the kernel segment for the stack
STACKSZ equ 4096

extern kmain
extern _bss_start
extern _bss_size

global _start
_start:
	; TODO floppy off if necessary

	; move stack to the top of the kernel segment
	xor ax, ax
	mov sp, ax

	mov ds, ax
	mov es, ax
	mov ss, ax

	; zero .bss
	mov di, _bss_start
	mov cx, _bss_size
	shr cx, 1
	rep stosw

	call kmain

hang:	hlt
	jmp hang

; vi:set ts=8 sts=8 sw=8 ft=nasm: