array_size:     .word   8
array:          .space  32
enter:          .asciiz "Enter an integer:\n"
bound1:         .asciiz "Enter an integer for a bound:\n"
bound2:         .asciiz "Enter an integer for another bound:\n"
sumText:        .asciiz "The sum is: "
arrayPrint:     .asciiz "The array contains the following:\n"
newline:        .asciiz "\n"

.text
.globl  main

main:
    li  $a0, 0
    lw  $s1, array_size
    la  $s2, array
    j enterIntegers

enterIntegers:
    beq     $s0, $s1, enterBound    #exit loop if $s0 = $s1
    la      $a0, enter              #load Enter an integer:
    li      $v0, 4                  #printString()
    syscall
    li      $v0, 5                  #input integer
    syscall
    sll     $t2, $s0, 2
    add     $t3, $s2, $t2
    sw      $v0, 0($t3)             #store in array
    addi    $s0, $s0, 1             #index += 1
    j       enterIntegers

enterBound:
    la      $a0, bound1
    li      $v0, 4
    syscall
    li      $v0, 5
    syscall
    move    $v0, $s3
    la      $a0, bound2
    li      $v0, 4
    syscall
    li      $v0, 5
    syscall
    move    $v0, $s4
    slt $s5, $s3, $s4              # is num1 < num2?
    bgtz $s5, callSumBetween       # then just perform sumBetween( )
    move $s3, $t0                  # otherwise swap num1 and num2
    move $s4, $s3                  # before calling
    move $t0, $s3

callSumBetween:
    j sumBetween1                # sumBetween( num1, num2 )

#s0 = i
#s5 = sum
#s3 = min
#s4 = max
#s1 = length
sumBetween1:
    li      $s5, 0
    li      $s0, 0
    j       while1

while1:
    blt     $s0, $s1, sumBetween1If1
    bge     $s0, $s1, while1End
    j       while1End

sumBetween1If1:
    li      $t2, 0
    li      $t3, 0
    li      $t4, 0
    sll     $t2, $s0, 2
    add     $t3, $s2, $t2
    lw      $t4, 0($t3)
    ble     $s3, $t4, sumBetween1If2
    addi    $s0, $s0, 1
    j       while1

sumBetween1If2:
    li      $t2, 0
    li      $t3, 0
    li      $t4, 0
    sll     $t2, $s0, 2
    add     $t3, $s2, $t2
    lw      $s6, 0($t3)
    bge     $s3, $t4, sumBetween1If3
    addi    $s0, $s0, 1
    j       while1

sumBetween1If3:
    add     $s5, $s5, $s6
    addi    $s0, $s0, 1
    j       while1

while1End:
    move    $v0, $s5
    lw      $ra, 0($sp)
    addi    $sp, $sp, 4
    move    $ra, $s7
    j       continue


continue:
    la      $a0, sumText
    li      $v0, 4
    syscall
    move    $s5, $a0
    li      $v0, 1
    syscall
    la      $a0, newline
    li      $v0, 4
    syscall
    li      $s0, 0
    la      $a0, arrayPrint
    li      $v0, 4
    syscall
    j       whileLoop

whileLoop:
    beq     $s0, $s1, Exit
    li      $t2, 0
    li      $t3, 0
    li      $t4, 0
    sll     $t2, $s0, 2
    add     $t3, $s2, $t2
    lw      $t4, 0($t3)
    move    $t4, $a0
    li      $v0, 1
    syscall
    la      $a0, newline
    li      $v0, 4
    syscall
    addi    $s0, $s0, 1
    j       whileLoop

Exit:
    jr $ra