mipscaseswap.s

.data
input: .space 100
buffer: .byte 100
break:	.asciiz	"\n"
ask: 	.asciiz "Please enter Sentence: "
 


.text

	la 	$a0, ask			#Load string requesting input
	li 	$v0, 4				#Load SYS Code
	syscall					#Print input request

	la 	$a0, input			#Store user input into input variable
	li	$a1, 100			#Set up Max string input
	li 	$v0, 8				#Get User Input in $v0
	syscall
	
	li	$t0, 0
	

beginning:
	la	$t5, input($t0)
	lbu 	$t2, ($t5)			#Get the first byte pointed to the address
	beq	$t0, 0xa, end			# EXIT if #t0 strign length

	
changeCase:
	li	$t1, 0x5a
	ble	$t2, $t1, makeUpper
	
						#Else Continue
	subi	$t2, $t2, 32
	sb	$t2, input($t0)			#Make it lowercase
	
	
	add	$t0, $t0, 1			#Add 1 to $t0
	j beginning				
	
makeUpper:
	addi	$t2, $t2, 32
	sb	$t2, input($t0)			#Make it uppercase

	add	$t0, $t0, 1			#Add 1 to $t0																	
	j beginning	

end:
	la	$a0, input
	li	$v0, 4
	syscall					#Print the letter

	li	$v0, 10
	syscall					#Exit the program