// -*- verilog -*- // // USRP - Universal Software Radio Peripheral // // Copyright (C) 2008 Matt Ettus // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301 USA // // Rounding "macro" // Keeps the topmost bits, does proper 2s comp rounding (round-to-zero) module round_reg #(parameter bits_in=0, parameter bits_out=0) (input clk, input [bits_in-1:0] in, output reg [bits_out-1:0] out); wire [bits_out-1:0] temp; round #(.bits_in(bits_in),.bits_out(bits_out)) round (.in(in),.out(temp)); always @(posedge clk) out <= temp; endmodule // round