?? counter1.v
字號:
// Eight bit counter example 1
module counter1(out, cout, data, load, cin, clk);
output [7:0] out;
output cout;
input [7:0] data;
input load, cin, clk;
reg [7:0] out;
always @(posedge clk)
begin
if (load)
out = data;
else
out = out + cin;
end
// all bits of out must be one and the
// carry in must be on to generate a
// carry out
assign cout = &out & cin;
endmodule
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