ArithmeticMIPS/printArrayWhileLoop.asm at master · danielhcg/ArithmeticMIPS · GitHub

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.data

	myArray: .space 12

	myComma: .asciiz ", "
	message1: .asciiz "Displaying array NOT USING while looping: "
	message2: .asciiz "\nDisplaying array USING while loopiing: "

.text

	#main procedure
	main:

		#calling driver function to display array using while loop
		jal printArrayLoop

		#cant seem to figure out why only 1 array displays

		#calling driver function
		jal printArray

	#closing statement
	li $v0, 10
	syscall

	#driver function for printing array without while loop
	printArray:

		addi $s0, $zero, 4
		addi $s1, $zero, 10
		addi $s2, $zero, 12

		addi $t0, $zero, 0   #at first position

		sw $s0, myArray($t0)
			addi $t0, $t0, 4 #at second position
		sw $s1, myArray($t0)
			addi $t0, $t0, 4 #at thrid position
		sw $s2, myArray($t0)

		#printint values of array without using while loop
		subi $t0, $t0, 8  #moving index to position 1

		#retrieving value at first position of array using LOAD WORD(lw) instruction
		lw $t6, myArray($t0) #load value at 3rd position from myArray(4) into t6

		#display message1
		jal displayMessage1

		#calling function to display int at first position
		jal displayInt

		#calling dipslayComma function to dipslay comma
		jal displayComma

		#changing index to second position
		addi $t0, $t0, 4

		#loading new array position value into t6
		lw $t6, myArray($t0)

		#display next int
		jal displayInt

		#display a comma
		jal displayComma

		#changing index to third position
		addi $t0, $t0, 4

		#loading new array position value into t6
		lw $t6, myArray($t0)

		#display last int
		jal displayInt

	#closing statement
	jr $ra

	#driver functin to print array using looping
	printArrayLoop:

		#'declaring' values
		addi $s0, $zero, 4
		addi $s1, $zero, 10
		addi $s2, $zero, 12

		addi $t0, $zero, 0       #specify starting index

		sw $s0, myArray($t0)
			addi $t0, $t0, 4     #at second position
		sw $s1, myArray($t0)
			addi $t0, $t0, 4     #at thrid position
		sw $s2, myArray($t0)

		#clearing t0 to 0
		addi $t0, $zero, 0

		#displaying message2
		jal displayMessage2

		while:

			#test condition
			beq $t0, 12, exit  #if t0 = 12, then break out of while loop

			lw $t6, myArray($t0) #load element to register t0

			#updating offset
			addi $t0, $t0, 4

			#calling displayInt to print current number
			li $v0, 1
			addi $a0, $t6, 0
			syscall

			#displaying comma
			li $v0, 4
			la $a0, myComma
			syscall

			j while  #iterator

		exit:
			#tell system this is end of loop
			li $v0, 10
			syscall

	#closing statement
	jr $ra


	#function to display an integer
	displayInt:
		li $v0, 1
		addi $a0, $t6, 0
		syscall
	#closing statement
	jr $ra

	#function to display a comma
	displayComma:
		li $v0, 4
		la $a0, myComma
		syscall
	#closing statement
	jr $ra

	#function to display message1
	displayMessage1:
		li $v0, 4
		la $a0, message1
		syscall
	#closing statement
	jr $ra

	#function to display message2
	displayMessage2:
		li $v0, 4
		la $a0, message2
		syscall
	#closing statement
	jr $ra