TITLE Loop             (SumNum_Avg.asm)

; out 1 + 2 + ... + N
; find avg
; Last update: 11/2/17
;

INCLUDE Irvine32.inc

.data
msg BYTE "N? ", 0
spc BYTE "  ", 0
sum DWORD 0
dvs DWORD ?

.code
main PROC

	MOV EDX, offset msg
	call WriteString	; # of loops: N

	call readInt

	MOV ECX, EAX	; # of loops
	MOV dvs, EAX	; hold the N
	MOV EAX, 1	; EAX = 1
LL:
	call WriteDec	; output: 1 2
	MOV EDX, offset spc
	call WriteString

	ADD sum, EAX	; sum = 1 + 2 + 3 + 4...
	INC EAX		; 2 3 ...
	LOOP LL

	call crlf
	call crlf

	MOV EAX, sum	; EAX = 1+2+ ... + N

	call WriteDec
	
	call crlf
	call crlf
	
	;------------------------------------
	; find avg
	MOV EDX, 0	; read for division
	DIV dvs		; [EDX EAX]/N -> avg
	
	call WriteDec
	
	call crlf
	call crlf
	

	exit
main ENDP
END main