I found free code for a 6502 processor online and test rom and a bunch of stuff that comes with it. I compiled 6502.vhd and microcode.vhd and it compiled. I added module testrom the entire thing compiled, I simulated it and signals didn't change. Do i have to put all the code together. Code something to make the 6502 to use the testrom?


http://www.free-ip.com/6502/download.htm
all the code is at this link

is there any experts i can talk to for help?
FYI I'm trying to model the tempest arcade game in vhdl so that I can play it..

If you're trying to model Tempest so you can play it, I have two suggestions.

First (people are going to hate me for this, but oh well), Microsoft sold a "Return of Arcade" software package for about $30 that had a Tempest port or simulation, as well as Battlefield, Asteroids, and two other games I can't remember offhand. I don't know if this is still for sale, though. I thought the games were faithful reproductions, save a few Windows-isms.

Second, MAME, a generic arcade game simulator, is available somewhere on the web--all you need are ROM images for the Tempest game.

www.mame.net (but note that Retrocade is faster on 486 and P5 machines)