# [Stackish](http://www.enderscythe.com/projects/proglangs/stackish/), 12 bytes

    01d\+.qzcl2'

How it works:  

    0   Load 0 into stack (stack now 0).
    1   Load 1 into stack (stack now 0,1).
    d   Duplicate last number of stack (stack now 0,1,1).
    \   Swap bottom with top (stack now 1,0,1).
    +   Add last two numbers (stack now 1,1).
    .   Pop to output (stack now 1).
    q   Undo pop (stack now 1,1).
    z   Pause.
    c   Clear screen.
    l2' Jump to 2nd character (d).
    
    d   Duplicate last number of stack (stack now 1,1,1).
    \   Swap bottom with top (stack now 1,1,1).
    +   Add last two numbers (stack now 1,2).
    .   Pop to output (stack now 1).
    q   Undo pop (stack now 1,2).
    z   Pause.
    c   Clear screen.
    l2' Jump to 2nd character (d)
    
    ...