Fitter problem

I am incredibly sorry to keep asking but I have again managed to hit a brick wall again. I am trying to develop a simple binary stopwatch using vhdl on quartus 2. I hope to download it into a CPLD.

I would like to use 2 inputs, 1 input resets the count and the other pauses the program. I think I can do the first by using an if conditional statement in my process:

button: in std_logic vector(1 downto 0); This line will be in my entity

– In my process

if (button1= “01”)

time<=”00000000”

end if;

I am stuck on how to make the program pause ( button = “10”) and retain all values so that it can resume after an event (button “00”) . I can always prioritise for button”11”later.

I have been looking on the web and apparently I can not use a wait statement inside a process with a sensitivity list which is what I have. Could someone please offer me some advice.

PS: CPLD,s are annoying I have had so much grief trying to route (fitter problems).