; IN:
;  ax = hex value
printh16:
	xchg ah, al
	call printh8
	xchg ah, al

; IN:
;  al = hex value
printh8:
	push ax
	mov ah, al

	shr al, 1
	shr al, 1
	shr al, 1
	shr al, 1
	call .printh4

	mov al, 0xf
	and al, ah
	call .printh4

	pop ax
	ret

	.printh4:
		cmp al, 10
		jb .numeric

		add al, 'a' - 10
		jmp printc

		.numeric:
		add al, '0'
		jmp printc