# A simple program that calls a function with 3 arguments
# and prints its return value

main:
    #int main(void) {
    #    z = sum(x,y,30);
    #    
    #    printf("%d\n",z);
    #    return 0;
    #}
    push $ra     # save $ra

    lw $a0, x    # set up arguments in a registers
    lw $a1, y
    li $a2, 30
    jal sum      # sum(x,y,30);
    
    sw $v0, z
    
    li $v0, 1    # printf("%d",z);
    lw $a0, z
    syscall
    
    li $v0, 11   # printf("\n")
    li $a0, '\n'
    syscall        


    li $v0, 0
    
    pop $ra      # restore $ra 
    jr $ra       # return 0

sum:
    #int sum(int a, int b, int c) {
    #    return a+b+c;
    #}
    #a $a0, b $a1, c $a2
    add $v0, $a0, $a1   #$v0 = a + b
    add $v0, $v0, $a2   #$v0 = a + b + c
    
    jr $ra


.data
x:
    .word 5
y: 
    .word 7
z: 
    .space 4