;initialised data section
section .data
	; Define constants
	num1:	equ 100
	num2:	equ 50
	; http://geekswithblogs.net/MarkPearl/archive/2011/04/13/more-nasm.aspx
	msg:	db "Sum is correct", 10

;;
;; program code
;;
section .text
	global	_start

;; entry point
_start:
	; get sum of num1 and num2
	mov	rax, num1
	mov	rbx, num2
	add	rax, rbx
	; compare rax with correct sum - 150
	cmp	rax, 150
	; if rax is not 150 go to exit
	jne	.exit
	; if rax is 150 print msg
	jmp	.rightSum

; Print message that sum is correct
.rightSum:
	;; write syscall
	mov	rax, 1
	;; file descritor, standard output
	mov	rdi, 1
	;; message address
	mov	rsi, msg
	;; length of message
	mov	rdx, 15
	;; call write syscall
	syscall
	; exit from program
	jmp	.exit

; exit procedure
.exit:
	mov	rax, 60
	mov	rdi, 0
	syscall