VHDL help

[Altera_Forum]

Hello everyone,  

I am trying to design pong game and I have written the code but unfortunately it does not display on the VGA screen.  I'm using (quartus II 15) and board DE2- 115. please can anyone help me on this.  Note, I have attached the code which I used in attachment.  Thanks in advance :)

[Altera_Forum]

First question, have you got a test bench? Have you tried it in a simulator? This is the way to test and debug your design 

 Secondly, you cannot have counters in asynchronous processes. If the conditions to increase the count are meet, you're expecting the circuit to increment the count an infinite number of times in zero time. Counters have to be in synchronous processes.