# This is the C start-up code

crt0:   lui     $sp,0x7fff
        ori     $sp,$sp,0xfffc
        jal     main
*done:  beq     $0,$0,done


# int factorial(int x) {
#     if (x > 1)
#         return x*factorial(x-1);
#     else
#         return 1;
# }

factorial:
        la      $v0,5040
        jr      $ra


# main()
# {
#     factorial(7);
# }
# main() is not a leaf, so it needs to
# allocate space on the stack to store the return address
# and the arguments of functions it calls

main:   addiu   $sp,$sp,-32   # allocates 8 words
        sw      $ra,20($sp)
        la      $a0,7
        jal     factorial
*       la      $v0,0
        lw      $ra,20($sp)
        addiu   $sp,$sp,32
        jr      $ra