ld	bc,0		; BC:=0;
loop	equ	$
				; [main body of loop]
	inc	bc		; BC:=BC+1;
	ld	hl,-1000	; loop to stop at 1000;
	add	hl,bc		; HL:=HL+BC;
	jp	nc,loop		; go to LOOP if carry is zero;