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