# Print the values of an array using a for loop.

.data
numElements:
         .word  7

elements:
         .word 55
         .word 66
         .word 77
         .word 0
         .word -16
         .word -19
         .word 82

newline:
        .asciiz "\n"

.text

main:
        # Function prologue -- even main has one
        subu  $sp, $sp, 24    # allocate stack space -- default of 24 here
        sw    $fp, 0($sp)     # save caller's frame pointer
        sw    $ra, 4($sp)     # save return address
        addiu $fp, $sp, 20    # setup main's frame pointer

        # for ( i = 0; i < numElements; i++ )
        #    print elements[i]

        addi    $s1, $zero, 0   # i = 0

        la      $t0, numElements
        lw      $s2, 0($t0)     # $s2 = numElements

        la      $t0, elements   # $t0 = address of elements[0]

loopBegin:
        # test if for loop is done
        slt     $t1, $s1, $s2   # $t1 = i < numElements
        beq     $t1, $zero, loopEnd

        # Compute address of elements[i]
        add     $t1, $s1, $s1
        add     $t1, $t1, $t1   # $t1 = 4 * i
        add     $t2, $t0, $t1   # $t2 = address of elements[i]
        lw      $a0, 0($t2)     # $a0 = elements[i]
        addi    $v0, $zero, 1
        syscall

        # print newline
        la      $a0, newline
        addi    $v0, $zero, 4
        syscall

        addi    $s1, $s1, 1     # i++
        j       loopBegin

loopEnd:

done:   # Epilogue for main -- restore stack & frame pointers and return
        lw    $ra, 4($sp)     # get return address from stack
        lw    $fp, 0($sp)     # restore the caller's frame pointer
        addiu $sp, $sp, 24    # restore the caller's stack pointer
        jr    $ra             # return to caller's code