4 bit universal shift register using vhdl

[Altera_Forum]

Heya guys 

 for a small exercise, i have been asked to design a 4 bit universal shift register in VHDL. i was wondering if someone could help me start off somewhere as i am completely confused how to go about it.  i have attached a copy of the exercise with this thread  kind regards Daniel

[Altera_Forum]

yes i have done something similar to that. i asked my lecturer and he has showed me a simple way of doing the testbench so am all finished with this task. thanks a lot guys. you have been so helpful and now i feel like i know quite abit about VHDL.