projects / OpenSPARC-T2-DV / blame
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1 | // ========== Copyright Header Begin ========================================== |
| 2 | // | |
| 3 | // OpenSPARC T2 Processor File: dffr.v | |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
| 6 | // | |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 8 | // | |
| 9 | // This program is free software; you can redistribute it and/or modify | |
| 10 | // it under the terms of the GNU General Public License as published by | |
| 11 | // the Free Software Foundation; version 2 of the License. | |
| 12 | // | |
| 13 | // This program is distributed in the hope that it will be useful, | |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | // GNU General Public License for more details. | |
| 17 | // | |
| 18 | // You should have received a copy of the GNU General Public License | |
| 19 | // along with this program; if not, write to the Free Software | |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 21 | // | |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license | |
| 23 | // choice is available it will apply instead, Sun elects to use only | |
| 24 | // the General Public License version 2 (GPLv2) at this time for any | |
| 25 | // software where a choice of GPL license versions is made | |
| 26 | // available with the language indicating that GPLv2 or any later version | |
| 27 | // may be used, or where a choice of which version of the GPL is applied is | |
| 28 | // otherwise unspecified. | |
| 29 | // | |
| 30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or | |
| 32 | // have any questions. | |
| 33 | // | |
| 34 | // ========== Copyright Header End ============================================ | |
| 35 | /*%W% %G%*/ | |
| 36 | ||
| 37 | /***************************************************************** | |
| 38 | * | |
| 39 | * File Name : dffr.v | |
| 40 | * Author Name : John Lo | |
| 41 | * Description : | |
| 42 | * | |
| 43 | * Parent Module: | |
| 44 | * Child Module: | |
| 45 | * Interface Mod: many. | |
| 46 | * Date Created : 3/25/04 | |
| 47 | * | |
| 48 | * Copyright (c) 2020, Sun Microsystems, Inc. | |
| 49 | * Sun Proprietary and Confidential | |
| 50 | * | |
| 51 | * Modification : | |
| 52 | * | |
| 53 | ****************************************************************/ | |
| 54 | ||
| 55 | module dffr (clk,reset,d,q); | |
| 56 | ||
| 57 | parameter WIDTH = 1; | |
| 58 | ||
| 59 | input [WIDTH-1:0] d; | |
| 60 | input reset; | |
| 61 | input clk; | |
| 62 | output [WIDTH-1:0] q; | |
| 63 | ||
| 64 | reg [WIDTH-1:0] q; | |
| 65 | ||
| 66 | always@(posedge clk ) begin | |
| 67 | if (reset) q[WIDTH-1:0] <= {WIDTH{1'b0}} ; | |
| 68 | else q[WIDTH-1:0] <= d[WIDTH-1:0] ; | |
| 69 | end | |
| 70 | ||
| 71 | endmodule |