string recognize and led - vhdl

"Amit" <amit.kohan@gmail.com> wrote in message
news:1194495166.085775.169570@v23g2000prn.googlegroups.com...
>
> Hello group,
>
> I'm writing a code to recognize two strings of 0s and 1s base on a
> Moore machine.
Not how I would approach it, but OK.

> The goal is to wait for two numbers (let's say 75). One
> string will represent 7 and the other represents 5.
>
> Let's say:
>
> 5= 000010000100
> 7= 000010000110
>
>
> Now, when the appropriate string (digit) is recongnized the number
> must be displayed on an LED on Altera board (DE2). I understand that
> I have to add a mulitplexer to do this but the thing I am not sure
> that how can I keep the number (7) intact till recognizing the next
> appropriate number (5)? (other numbers must be ignored)
process(Clock)
begin
if rising_edge(Clock) then
if (Input_String = "000010000100") then
Led_Display <= Whatever you need to display a '5'
elsif (Input_String = "000010000110") then
Led_Display <= Whatever you need to display a '7'
end if;
end if;
end process;
>
> Do I need a latch?
A flip flop(s) to hold the data.

> if this is right, then can I only simulate it using
> if statement?
>
Why restrict yourself to only one statement type. Use the appropriate
statements.

KJ