When I run the test bench, however, I get all U values for the pseudo_rand. Now the code does synthesize but gives me warnings concerning the sensitivity list. I am writing my code using Xilinx ISE, my notes and a sample code provided here: Part of a simple game we have to make for an assignment involves writing a pseudo-random number generator in the form of an 8-bit LFSR.
I'm a first time user so please bear with me.