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) begin
Q <= 1'b0;
end else if(PRE) begin
Q <= 1'b1;
end else if (T) begin
Q <= ~Q;
end
end
endmodule