.NOLIST
#INCLUDE "ti83plus.inc"
.LIST
.ORG	$9D93
.DB	t2ByteTok, tAsmCmp
	b_call(_ClrLCDFull)		; clear the screen
	LD	HL, 0			; clear HL
	LD	(CurRow), HL		; set the cursor to the top of the screen

	b_call(_GetKey)			; get the first digit
	CP	kClear			; check if the 'Clear' button was hit
	JR	Z, Exit			;  if it was, exit

	SUB	142			; convert from keycode to number

	LD	H, 0
	LD	L, A			; store A in HL

	LD	B, 10			; iterate 10 times
Loop:
	ADD	A, L			; add L to A
	DJNZ	Loop

	LD	L, A			; store new A value in L

	b_call(_GetKey)			; get the second digit
	CP	kClear			; check if the 'Clear' button was hit
	JR	z, Exit			;  if it was, exit

	SUB	142			; convert from keycode to number

	ADD	A, L			; add old value to the new input

	LD	L, A			; store final value to L

	b_call(_Puts)
	b_call(_NewLine)
Exit:
	RET
.END