Attempted recursive fibonacci finder

fib.s

.section .data
.section .text
.globl _start
_start:

# adjust stack frame and push fib args to stack
pushl $5
pushl $1
pushl $0

call fibr

movl %eax, %ebx
movl $1, %eax
int $0x80



## FUN LIB ##

fibr:
# load func args
popl %eax # 0
popl %ecx # 1
popl %ebx # nth fib

decl %ebx

# tmp reg %esi
movl %ecx, %esi
addl %ecx, %eax
movl %esi, %eax

movl %esp, %ebp

cmp $0, %ebx
je done


pushl %ebx
pushl %ecx
pushl %eax
# recurse
call fibr

# leave function
done:
ret