.data
prompt:	.asciiz  	"\n\n   Please Input a value for N = "
result:	.asciiz  	 " The sum of the integers from 1 to N is "
bye:	.asciiz 	 "\n  **** Adios Amigo - Have a good day **** "
	.globl	main
	.text
main:	li	$v0, 4	# system call code for print_str
	la	$a0, prompt	# load address of prompt into a0
	syscall		# print the prompt message
	li	$v0, 5	# system call code for read_int
	syscall		# reads a value of N into v0
	blez	$v0,  done	# if ( v0  < = 0 ) go to done
	li	$t0, 0	# clear $t0 to zero
loop:	add 	$t0, $t0, $v0	# sum of integers in register $t0
	addi	$v0, $v0, -1	# summing  in reverse order
	bnez	$v0, loop	# branch to loop if $v0 is != zero
	li	$v0, 4	# system call code for print_str
	la	$a0, result	# load address of message into $a0
	syscall		# print the string
	li	$v0, 1	# system call code for print_int
	move	$a0, $t0	# a0 = $t0
	syscall		# prints the value  in register $a0
	b 	main
done:	li	$v0, 4	# system call code for print_str
	la	$a0, bye	# load address of msg. into $a0
	syscall		# print the string
	li	$v0, 10	# terminate program
	syscall    		# return control to  system