#  CSSE 232 - Winter 2003-2004
#  Program to test assembler

	.text			# Text section of the program (as opposed to data).
	.globl main		
 main:
	li 	$s0, 0x100	# N
	move 	$a0, $s0
	jal 	Sum		# Call procedure to determine Sum
	move	$s1, $v0
	li	$v0, 10		# If you don't have equivalent statements to exit, that's 	
				# fine
	syscall
Sum:		# Procedure determines the sum from 1 to N; Stores the same in memory
		# Returns the same to the calling procedure
	move	$t0, $a0    	# N
	li	$t1, 0	    	# i = 0 
	li	$t2, 0	    	# sum = 0
Add:
	addi	$t1, $t1, 1	# i = i + 1
	add	$t2, $t2, $t1 	# sum = sum + i			
	bne	$t0, $t1, Add   # if(i == N) then done
	la	$t4, total	# Store the sum in memory
	sw	$t2, 0($t4)
	move	$v0, $t2
	jr	 $ra
	
	.data
total	: .word 0