Question

The program I'm using is MIPS (mars) assembly;

Write a program that in the main routine ask the user input n numbers(2<n<11) and pass n and array pointer

to FillArray to stores numbers in the array. Main again passes the pointer to AddElement Function to

add the elements of the array, and return the result back to main to print it.

                                                                    

                                                                    

Answer 1

Please find the code below:

.data
array : .space 1000
msg2: .asciiz "Enter element "
msg3: .asciiz " : "
msg4: .asciiz "Sum of array values is : "
msg6: .asciiz "Enter size of the array : "
size : .word 10
.text
main :
li   $v0, 4
la   $a0, msg6
syscall
li $v0, 5
syscall
sw $v0,size #store result to size
lw $s0,size #size of array
la $t0,array #save address of array
jal fillArray #call function fill array
jal addElement #call function fill array
li   $v0, 4
la   $a0, msg4
syscall
li $v0,1
move $a0,$t7
syscall

li $v0,10 #terminate call
syscall

#################################################

fillArray :
li $s1,0 #index for loop
read_values_loop:
bge $s1,$s0,read_values_loop_exit

#show enter value message
li   $v0, 4
la   $a0, msg2
syscall

addi $s2,$s1,1
move $a0,$s2
li $v0,1
syscall

li   $v0, 4
la   $a0, msg3
syscall

li $v0, 5
syscall

mul $s2,$s1,4
add $s2,$s2,$t0 #load address of array element
sw $v0,0($s2) #save value to array

addi $s1,$s1,1
j read_values_loop
read_values_loop_exit:
jr $ra

addElement:
###################adding elements####################

li $s1,0 #index for loop
li $t7,0 #store sum of element
add_loop:
bge $s1,$s0,addLoopExit

mul $s2,$s1,4
add $s2,$s2,$t0 #load address of array element
lw $v0,0($s2) #load value to array

add $t7,$t7,$v0 #add number
addi $s1,$s1,1
j add_loop
addLoopExit:

jr $ra