# xSpim Loops Program
# 
#   CPE 315
#   Winter 2008
#
# By: Dan Stearns
# Modifications:
#           
# Notes:  Demonstrates how to code for loop, while loop and SLT 
#
#

#  Data Area
.data

#Text Area (i.e. instructions)
.text

main:

la	$a0, 0x7fffffff
# FOR loop demo 
# init t0 to count  
ori	$t0, $0, 0

# load lcv - for loop
ori     $v0, $0, 4			

# do something - body of loop
loop:
addi	$t0, $t0, 1

# test for loop termination
addi	$v0, $v0, -1
bne	$v0, $0, loop

# WHILE loop demo 
# init v0 with some constant
ori	$v0, $0, 2222

# divide constant by 2 until 0 reached
loop2:
srl	$v0, $v0, 1

# test for loop termination
bne	$v0, $0, loop2

# SLT demo
# init v0 with some constant
ori	$v0, $0, 222

# multiply constant by 2 until 22222 reached
loop3:
sll	$v0, $v0, 1

# test for loop termination
slti	$t0, $v0, 22222
bne	$t0, $0, loop3


# Exit
ori     $v0, $0, 10
syscall