Show us what you already came up with and we will help you answer open questions :)

Atis wrote: > Hej. > I am very new in VHDL. > Can you help me to solv these exercises? Relax, you do not need VHDL to solve these exercise, just basic knowledge about sequential logic.

PittyJ wrote: > I have to go to work on monday. > Anyone here, who wants to help me? Yep, but we wont do your homework for you...

It's fairly easy: start with the work and if it doesn't go further on,thenask about a particular problem. But no way with: who wants to do my school exercises?

Tipp: The addition z=mod(a+b,2) is in fact the same as z=a xor b. You know the initial state of each variable. Just move the values according to the arrows and do the operations if they lead to an operator. XOR:

a b z 0 0 0 1 0 1 0 1 0 1 1 0 |