// ========== Copyright Header Begin ========================================== // // OpenSPARC T2 Processor File: niu_rdmc_encode_32.v // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved // 4150 Network Circle, Santa Clara, California 95054, U.S.A. // // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. // // 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; version 2 of the License. // // 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // For the avoidance of doubt, and except that if any non-GPL license // choice is available it will apply instead, Sun elects to use only // the General Public License version 2 (GPLv2) at this time for any // software where a choice of GPL license versions is made // available with the language indicating that GPLv2 or any later version // may be used, or where a choice of which version of the GPL is applied is // otherwise unspecified. // // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, // CA 95054 USA or visit www.sun.com if you need additional information or // have any questions. // // ========== Copyright Header End ============================================ module niu_rdmc_encode_32 (din,dout); input [15:0] din; output[3:0] dout; reg [3:0] dout; always @(din) case (din) /* 0in < case -parallel */ 16'b0000_0000_0000_0000: dout = 4'd0; 16'b0000_0000_0000_0001: dout = 4'd0; 16'b0000_0000_0000_0010: dout = 4'd1; 16'b0000_0000_0000_0100: dout = 4'd2; 16'b0000_0000_0000_1000: dout = 4'd3; 16'b0000_0000_0001_0000: dout = 4'd4; 16'b0000_0000_0010_0000: dout = 4'd5; 16'b0000_0000_0100_0000: dout = 4'd6; 16'b0000_0000_1000_0000: dout = 4'd7; 16'b0000_0001_0000_0000: dout = 4'd8; 16'b0000_0010_0000_0000: dout = 4'd9; 16'b0000_0100_0000_0000: dout = 4'd10; 16'b0000_1000_0000_0000: dout = 4'd11; 16'b0001_0000_0000_0000: dout = 4'd12; 16'b0010_0000_0000_0000: dout = 4'd13; 16'b0100_0000_0000_0000: dout = 4'd14; 16'b1000_0000_0000_0000: dout = 4'd15; default: dout = 4'd0; endcase endmodule