[bits 16]	               ; 16 bit real mode code
[org 0x7C00]                   ; Origin at 0x7C00 (upper end of memory)

start:
	call blankScreen

	mov dx, 0x0
	call setCursorPosition
	
	mov si, _str_hello     ; si = source index
	call printString
	mov dh, 0x1
	mov dl, 0x0
	call setCursorPosition
	
	mov al, 0x17           ; read the remaining 16 tracks 
	mov ch, 0x1            ; .... on track 1 ....
	mov cl, 0x1            ; .... starting at sector 1
	mov bx, 0x1000         ; 0x1000 is a standard kernel start location
	mov es, bx
	xor bx, bx             ; bx = 0, es:bs = 0x1000:0
	call loadFloppyDiskSectors
	push ax	
	mov ax, bx
	add ax, 0x2200         ; we just read 0x2200 bytes, move pointer in memory
	mov bx, ax
	pop ax
	mov al, 0x17           ; read 18 sectors per track for all future tracks
        mov cl, 0x1            ; start at sector 1 for all future tracks

	mov di, 0x2FF          ; abuse di as a counter, while (di < 80)
                               ; di is technically a destination index for stream
	                       ; ops, but nothing is using it ATM, so gimme.
_next_floppy_track:
	push ax
	mov ax, 0x2e
	call printCharacter
	mov ax, cx
	mov cx, di
	mov cl, al
	pop ax
	call loadFloppyDiskSectors
	push ax
	mov ax, bx
	add ax, 0x2400         ; each floppy track is (512b*18s)=0x2400 bytes long
	mov bx, ax
	pop ax
	inc di
	push cx
	mov cx, 0x50
	cmp di, cx             ; di < 80 ?
	jg _end_floppy_read
	pop cx

_end_floppy_read:	
	mov dh, 0x1
	mov dl, 0x0
	call setCursorPosition
	mov si, _str_floppydone
	call printString
	jmp 0x1000

%include "libinterrupt.S"

	_str_hello db 'Piquant v0.1 Bootloader', 0xA, 0
	_str_loading db 'Loading', 0
	_str_floppydone db 'Kernel loaded', 0xA, 0

times 510 - ($ - $$) db 0      ; fill up to 510 bytes with 0
dw 0xAA55                      ; magic bootloader signature