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