; since we have no stack we have to create one for the OS

global loader
; this section is partly handled by nasm tolerating some minor bs
MAGIC_NUMBER 	equ 0x1BADB002
FLAGS 			equ 0x0
CHECKSUM 		equ -MAGIC_NUMBER


; size in bytes of stack 
KERNEL_STACK_SIZE	equ 4096
extern test_fb

section .text
; align all instructions to 4 byte boundary by the x86 instruction set law
align 4
	; dropping our magic and other things into memory
	dd MAGIC_NUMBER
	dd FLAGS
	dd CHECKSUM

loader:
	mov al, 14
	mov dx, 0x3d4
	out dx, al ; 14 tells the framebuffer to expect the highest 8 bits of the position

	mov al, 0
	mov dx, 0x3d5
    out dx, al ; sending the highest 8 bits of 0x0050

	mov al, 15
	mov dx, 0x3d4
    out dx, al ; 15 tells the framebuffer to expect the lowest 8 bits of the position

	mov al, 0
	mov dx, 0x3d5
    out dx, al ; sending the lowest 8 bits of 0x0050

	call test_fb

.loop:
	jmp .loop