.data

new_line: .asciiz "\n"
prompt_post: .asciiz "Give me your zip code (0 to stop): "
input_string: .space 128
leading_string: .asciiz "The sum of all digits in your zip code is: "
debug_out_1: .asciiz "Rec Stop"

.text

#   -------[Macro Section]-------
    .macro exit_prog #Used to terminate the program
    li $v0, 10 #Let syscall know we want to terminate the program
    syscall #Exit program
    .end_macro #End exit_prog macro

    .macro print (%msg_out) #Used to simplify output and make code look cleaner
    li $v0, 4 # Let syscall know we want to print a NULL terminated string
    la $a0, %msg_out # Let syscall know the address of the NULL terminated string we want to print
    syscall #Print the NULL terminated string
    .end_macro #End print macro

    .macro print_pointer (%msg_out) #Used to simplify output and make code look cleaner
    li $v0, 4 # Let syscall know we want to print a NULL terminated string
    move $a0, %msg_out # Let syscall know the address of the NULL terminated string we want to print
    syscall #Print the NULL terminated string
    .end_macro #End print macro

    .macro print_stored_int (%label) #Used to simplify output and make code look cleaner
    li $v0, 1 #Let syscall know we want to print an int
    la $t0, %label #Load the address of %label
    lw $a0, ($t0) #Load the int that %label points to
    syscall #Print the loaded int
    .end_macro #End print_stored_int macro

    .macro print_int (%label) #Used to simplify output and make code look cleaner
    li $v0, 1 #Let syscall know we want to print an int
    move $a0, %label #Load the int that %label points to
    syscall #Print the loaded int
    .end_macro #End print_stored_int macro

    .macro get_int_store (%label) #Used to simplify input and make code look cleaner
    li $v0, 5 #Let syscall know we want to load an in from the users input
    syscall #Wait for number input
    la $t1, %label #Get the address of the label
    sw $v0, 0($t1) #Store the int recieved into the address the label is pointing to
    .end_macro #End get_int_store macro

    .macro get_string_store (%label) #Used to simplify input and make code look cleaner
    li $v0, 8 #Let syscall know we want to load an in from the users input
    la $a0, %label
    li $a1, 127
    syscall #Wait for number input
    .end_macro #End get_int_store macro









getzip:
    print(prompt_post)
    get_string_store(input_string)
    lb $t0, input_string
    sub $t0, $t0, 48
    beqz $t0, stop_me
    la $t0, input_string
    addi    $a0, $zero, 5
    add $a1, $zero, $t0
    jal recGetNumber
    j getzip
    stop_me:

    j exit


recGetNumber:
    subi    $sp, $sp, 12     # move stack pointer up 3 words
    sw  $ra, 0($sp)
    sw  $a0, 4($sp)
    sw  $a1, 8($sp)
    move    $s0, $a0
    move    $s1, $a1
    beq     $a0, $zero, recGetNumberExit #if arg is zero, leave
    #Do Stuff
    lb $t1, 0($s1)
    sub $t1, $t1, 48
    print_int($t1)

    #End stuff
    subiu   $a0, $s0, 1
    addiu   $a1, $s1, 1
    sw  $ra, 0($sp)
    jal recGetNumber

    recGetNumberExit:
    lw  $ra, 0($sp)
    addi    $sp, $sp, 12

    jr $ra




exit:
    exit_prog