errcll:	pop dx
errjmp:	call dmpdx
hlt:	hlt
	jmp hlt
dmpdx:	xor bx, bx
	mov ah, 0x0e
	mov cl, 4
	call dmpdx1
dmpdx1:	call dmpdx2
dmpdx2:	mov al, dh
	shl dx, cl
	shr al, cl
	add al, 0x30
	cmp al, 0x3a
	jl dmpdx3
	add al, 7
dmpdx3:	int 0x10
	ret