yosys/tests/asicworld/code_hdl_models_up_counter.v

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//-----------------------------------------------------
// Design Name : up_counter
// File Name : up_counter.v
// Function : Up counter
// Coder  : Deepak
//-----------------------------------------------------
module up_counter (
out , // Output of the counter
enable , // enable for counter
clk , // clock Input
reset // reset Input
);
//----------Output Ports--------------
output [7:0] out;
//------------Input Ports--------------
input enable, clk, reset;
//------------Internal Variables--------
reg [7:0] out;
//-------------Code Starts Here-------
always @(posedge clk)
if (reset) begin
out <= 8'b0 ;
end else if (enable) begin
out <= out + 1;
end
endmodule