# Suppose that "config" is a word being used to configure an I/O device.
	# Suppose that if bit 7 is 1, then something should be turned on, but if it  
	# is 0, something should be turned off.
	#  
	# This program illustrates the type of programming you would do
	.data
	# Suppose "config" contains the following value, and we need to test bit
	# 7 to decide whether or not to turn something on (like an LED light)
	#
	config:	        .word 0xFE3445EB
	.text
	la		$t0,config
	lw		$t1,0($t0)
	andi            $t1,$t1,0x80
	srl		$t1,$t1,7
        bne             $t1,$zero,turnon
	#               code here for turning whatever it is off
	#               a nonsense instruction, so we can see where code goes
	li              $t3,0x11111111
	j               exit
        turnon:	        # code here for turning whatever it is on
	#               a nonsense instruction, so we can see where code goes
	li              $t3,0x22222222
        exit:	
        #done