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<=0;
else if(PRE)
Q<=1;
else
case(T)
1'b0:
Q<=Q;
1'b1:
Q<=~Q;
endcase
end
endmodule