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I'm having trouble with my program. My goal is to iterate through the array and add...

I'm having trouble with my program. My goal is to iterate through the array and add only the even values together. When I run this program it hangs and I don't know why.

   .text
   .globl main


main:

   lui $16,0x1000
   lw $17,0($16)
addiu $16, $16, 0
   addiu $18, $0, 2
   addiu $19, $0, 28
  
loop:
beq $16, $19, exit
   div $17, $18
   mfhi $13
   beq $13, $0, even
   addiu $16, $16, 4
   j loop
  
even:

   add $10, $10, $17
addiu $16, $16, 4
  
   j loop

exit:

  
.data
   size: .word 8
   array: .word 23, -12, 45, -32, 52, -72, 8, 13

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Answer #1

C Code to Sum up Even values in an array:

MIPS for the above code::

        .file   1 ""
        .section .mdebug.abi32
        .previous
        .nan    legacy
        .module fp=32
        .module nooddspreg
        .abicalls
        .section        .rodata.str1.4,"aMS",@progbits,1
        .align  2
$LC0:
        .ascii  "%d \000"
        .section        .text.startup,"ax",@progbits
        .align  2
        .globl  main
        .set    nomips16
        .set    nomicromips
        .ent    main
        .type   main, @function
main:
        .frame  $sp,72,$31              # vars= 40, regs= 2/0, args= 16, gp= 8
        .mask   0x80010000,-4
        .fmask  0x00000000,0
        .set    noreorder
        .cpload $25
        .set    nomacro
        addiu   $sp,$sp,-72
        lw      $25,%call16(memset)($28)
        sw      $16,64($sp)
        addiu   $16,$sp,24
        .cprestore      16
        movz    $31,$31,$0
        li      $6,40                   # 0x28
        move    $4,$16
        sw      $31,68($sp)
        .reloc  1f,R_MIPS_JALR,memset
1:      jalr    $25
        move    $5,$0

        li      $2,23                   # 0x17
        sw      $2,24($sp)
        li      $2,-12                  # 0xfffffffffffffff4
        sw      $2,28($sp)
        li      $2,45                   # 0x2d
        sw      $2,32($sp)
        li      $2,-32                  # 0xffffffffffffffe0
        sw      $2,36($sp)
        li      $2,52                   # 0x34
        sw      $2,40($sp)
        li      $2,-72                  # 0xffffffffffffffb8
        sw      $2,44($sp)
        li      $2,8                    # 0x8
        sw      $2,48($sp)
        lw      $28,16($sp)
        li      $2,13                   # 0xd
        sw      $2,52($sp)
        move    $6,$0
        move    $2,$0
        li      $4,32                   # 0x20
        addu    $3,$16,$2
$L7:
        lw      $3,0($3)
        nop
        andi    $5,$3,0x1
        bne     $5,$0,$L2
        nop

        addu    $6,$6,$3
$L2:
        addiu   $2,$2,4
        bne     $2,$4,$L7
        addu    $3,$16,$2

        lw      $5,%got($LC0)($28)
        lw      $25,%call16(__printf_chk)($28)
        addiu   $5,$5,%lo($LC0)
        .reloc  1f,R_MIPS_JALR,__printf_chk
1:      jalr    $25
        li      $4,1                    # 0x1

        lw      $31,68($sp)
        lw      $16,64($sp)
        move    $2,$0
        j       $31
        addiu   $sp,$sp,72

        .set    macro
        .set    reorder
        .end    main
        .size   main, .-main
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