module t_ff_async_pr (
input CLK,
input RST,
input PRE,
input T,
output reg Q
);
// Write your code here
always @(posedge CLK or posedge RST or posedge PRE)
begin
if(RST)
Q<=1'b0;
else if(PRE)
Q<=1'b1;
else
begin
if(T==1)
Q<=~Q;
else if (T==0)
Q<=Q;
end
end
endmodule