.text
    .globl main
main:
    li    $t0, 3

loop: 
    beq   $t0, $0, endloop
    move  $a0, $t0
    jal   foo
    addi  $t0, $t0, -1
    j loop

endloop:     
    # HALT
    li  $v0, 10
    syscall

# What does foo do?
foo:
    li    $v0, 1
    syscall

    la    $a0, newline
    .data
newline:  .asciiz "\n"
    .text
    li    $v0, 4
    syscall
    
    jr $ra