Is there any software that lets you simulate real spartan 3 hardware but graphically(for example somebody picture board and do program that will simulate real thing). It is difficult to me to run to university every day to test my work.
It is easier to me to see if diode lights up or 7 seg displays number than to look at binary signals in xilinx as simulator.
I haven't seen any whole-board simulators. Most engineers spend hours/days/weeks staring at binary signals in something like ModelSim. Are you using ModelSim? If you really miss that 7-segment display, you could write and compile a small external graphics display program, and connect it into ModelSim through something like DPI (Direct Programming Interface) or FLI (Foreign Language Interface). Or maybe use Tcl/Tk to create a custom graphics window. ModelSim probably provides several methods for doing stuff like that, but I haven't explored most of them.
Here's an example of the Tcl/Tc display method:
**broken link removed**