comparator with a single input

[TrickyDicky]

post some example code, so I get what you mean.

 

[kcinimod]

if (enable = '0') then
			data_count <= 0;
			pre_count <= 0;
			pre_count_1 <= 0;
			pre_count_2 <= 0;
		
		elsif (data_sync(1) = '1') then
			
			pre_count <= 0;
		elsif rising_edge(clk) then
			pre_count <= pre_count + 1;
		end if;

say both the elsif statement are true, what will happen ? will both be executed ?

 

[TrickyDicky]

no. the code is sequential, so the higher of the elsif's taken, and the other is ignored. It can only take 1 if branch per process iteration, just like in any programming language. This gives an implicit priority in the signals.