So I am doing a fibonacci series for my MIPS assembly programming class and I am

Question

So I am doing a fibonacci series for my MIPS assembly programming class and I am having a trouble with the output. I feel like my logic is correct. I have put comments in the code to allow for an easy follow through of my logic. I will explain it again on here though in non MIPS code

so we start out with a =  0 b = 12 c = 0 and d = 1  e = 0 (temporary place holder for adding)

while a is not b

e = c + d

c = d + 0

d = e + 0

add 1 to a

jump back through loop again

Maybe I am doing something wrong here, but I feel like my logic is correct.

For some reason my output is 0 which is really baffling me.

http://codepad.org/yRHtmd9q

Explanation / Answer

please rate - thanks

you have branch not equal, instead of branch if equal

.data

str: .asciiz "One pair of rabbits can produce "
str2: .asciiz " pairs in a year."

.text

.globl main
main:

la $a0, str            #prints out str
li $v0, 4
syscall

li $t0, 0                       
li $t1, 12                      
li $t3, 0                       
li $t4, 1                       

Loop1:               

beq $t0, $t1, end1        #branch if not equal
add $t5, $t3, $t4        #add t3 and t4 put in t5
addi $t3, $t4, 0        #add t4 and 0 put in t3 (t3 becomes n-2)
addi $t4, $t5, 0        #add t5 and 0 put in t4    (t4 becomes n-1)
addi $t0, $t0, 1        #add 1 to t0

j Loop1                #jump loop

end1:


move $a0, $t5            #move t5 into a0 and print
li $v0, 1
syscall

la $a0, str2
li $v0, 4
syscall

li $v0, 10            #exit program
syscall

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