// -*- verilog -*- // // USRP - Universal Software Radio Peripheral // // Copyright (C) 2003 Matt Ettus // // SPDX-License-Identifier: LGPL-3.0-or-later // // // Sign extension "macro" // bits_out should be greater than bits_in module sign_extend (in,out); parameter bits_in=0; // FIXME Quartus insists on a default parameter bits_out=0; input [bits_in-1:0] in; output [bits_out-1:0] out; assign out = {{(bits_out-bits_in){in[bits_in-1]}},in}; endmodule