Miscellany

module oc_trigger(in,reset,out);
	input in;
	input reset;
	output out;
	reg out;
	integer tmp = 0;
	

	always @( posedge in )
	begin
				tmp=tmp+1;	
				if ( tmp >= 4 ) begin
					out=1;
					tmp=4;
					end
				else
					out=0;
	end		
endmodule