USE16
ORG 0x7c00

STACK_BASE equ 0x7000



code_begin:
	xor ax,ax
	mov ds,ax
	mov ss,ax
	mov es,ax
	mov fs,ax
	mov [0x500],dl

	mov sp,STACK_BASE

	mov si,0x7c00
	mov di,0x7a00
	mov ax,di
	mov cx,0x200
	rep movsb

	mov bx,mbr_main
	sub bx,code_begin
	add ax,bx
	jmp ax

mbr_main:


	mov word [read_pack.cnt-0x200],40
	mov word [read_pack.dst-0x200],0x7c00
	mov dword [read_pack.srcl-0x200],0x01
	mov [read_pack.srch-0x200],0x00
	mov dl,[0x500]
	mov ah,0x42
	mov si,read_pack-0x200
	int 0x13
	push 0x7c00
	ret

print_str:
	and ah,0x3
	add ah,0x30
	mov byte [dgg-0x200],ah
	mov cx,5
	mov bp,dgg-0x200
	mov ah,0x13
	mov al,0x00
	mov bh,0x00
	mov bl,0x0f
	xor dx,dx
	int 0x10
	hlt
	jmp $

dgg:
	db "Error"

read_pack:
	.size:	db 0x10			; packet size
			db 0x00			; reserved
	.cnt	dw 0x0000		; packets to transfer
	.dst	dd 0x00000000	; destination address
	.srcl	dd 0x00000000	; source LBA low
	.srch	dd 0x00000000	; source LBA hi


code_end:
	times 510-(code_end-code_begin) db 0x00
	db 0x55,0xaa