module dianzhen(f0,f1,row,line);
input f0;
output f1,line,row;
reg f1;
reg[15:0] row;
reg[15:0] line;
reg j,b;
always @(posedge f0)
begin
if(j==2)
begin
j<=0;
f1<=~f1;
end
else
j<=j+1;
end
always @(posedge f1)
begin
if (b>15)
begin
b<=0;
end
else
begin
case(b)
0: begin line<=16'b10000000_00000000;row<=16'h0080;end
1: begin line<=16'b01000000_00000000;row<=16'h4044;end
2: begin line<=16'b00100000_00000000;row<=16'h37FE;end
3: begin line<=16'b00010000_00000000;row<=16'h1110;end
4: begin line<=16'b00001000_00000000;row<=16'h80A0;end
5: begin line<=16'b00000100_00000000;row<=16'h6040;end
6: begin line<=16'b00000010_00000000;row<=16'h21B0;end
7: begin line<=16'b00000001_00000000;row<=16'h0E0E;end
8: begin line<=16'b00000000_10000000;row<=16'h1114;end
9: begin line<=16'b00000000_01000000;row<=16'h2110;end
10: begin line<=16'b00000000_00100000;row<=16'hE110;end
11: begin line<=16'b00000000_00010000;row<=16'h2110;end
12: begin line<=16'b00000000_00001000;row<=16'h2110;end
13: begin line<=16'b00000000_00000100;row<=16'h2210;end
14: begin line<=16'b00000000_00000010;row<=16'h2410;end
15: begin line<=16'b00000000_00000001;row<=16'h2010;end
endcase
b<=b+1;
end
end
endmodule
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