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//
// Copyright 2016 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
//
// Gray: {a,b,c,d}
// Bits: {a,a^b,a^b^c,a^b^c^d}
//
module gray2bin #(
parameter WIDTH = 8)
(
input [WIDTH-1:0] gray,
output reg [WIDTH-1:0] bin
);
integer i;
always @(*) begin
bin[WIDTH-1] = gray[WIDTH-1];
for (i = WIDTH-2; i >= 0; i = i - 1) begin
bin[i] = bin[i+1] ^ gray[i];
end
end
endmodule
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