| 1 | // ========== Copyright Header Begin ========================================== |
|---|
| 2 | // |
|---|
| 3 | // OpenSPARC T1 Processor File: tlu_addern_32.v |
|---|
| 4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
|---|
| 5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
|---|
| 6 | // |
|---|
| 7 | // The above named program is free software; you can redistribute it and/or |
|---|
| 8 | // modify it under the terms of the GNU General Public |
|---|
| 9 | // License version 2 as published by the Free Software Foundation. |
|---|
| 10 | // |
|---|
| 11 | // The above named program is distributed in the hope that it will be |
|---|
| 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 14 | // General Public License for more details. |
|---|
| 15 | // |
|---|
| 16 | // You should have received a copy of the GNU General Public |
|---|
| 17 | // License along with this work; if not, write to the Free Software |
|---|
| 18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
|---|
| 19 | // |
|---|
| 20 | // ========== Copyright Header End ============================================ |
|---|
| 21 | //////////////////////////////////////////////////////////////////////// |
|---|
| 22 | /* |
|---|
| 23 | // Description: parameterized adder macro |
|---|
| 24 | */ |
|---|
| 25 | //////////////////////////////////////////////////////////////////////// |
|---|
| 26 | // Global header file includes |
|---|
| 27 | //////////////////////////////////////////////////////////////////////// |
|---|
| 28 | `include "sys.h" // system level definition file which contains the |
|---|
| 29 | // time scale definition |
|---|
| 30 | |
|---|
| 31 | //////////////////////////////////////////////////////////////////////// |
|---|
| 32 | // Local header file includes / local defines |
|---|
| 33 | //////////////////////////////////////////////////////////////////////// |
|---|
| 34 | |
|---|
| 35 | module tlu_addern_32 (din, incr, sum); |
|---|
| 36 | // synopsys template |
|---|
| 37 | |
|---|
| 38 | parameter ADDER_DATA_WIDTH = 33; |
|---|
| 39 | parameter INCR_DATA_WIDTH = 1; |
|---|
| 40 | parameter UPPER_DATA_WIDTH = ADDER_DATA_WIDTH - INCR_DATA_WIDTH; |
|---|
| 41 | |
|---|
| 42 | input [ADDER_DATA_WIDTH-1:0] din; |
|---|
| 43 | input [INCR_DATA_WIDTH-1:0] incr; |
|---|
| 44 | output [ADDER_DATA_WIDTH-1:0] sum; |
|---|
| 45 | // |
|---|
| 46 | //////////////////////////////////////////////////////////////////////// |
|---|
| 47 | // local signal declaraiont |
|---|
| 48 | //////////////////////////////////////////////////////////////////////// |
|---|
| 49 | |
|---|
| 50 | assign sum[ADDER_DATA_WIDTH-1:0] = |
|---|
| 51 | din[ADDER_DATA_WIDTH-1:0] + {{UPPER_DATA_WIDTH{1'b0}},incr[INCR_DATA_WIDTH-1:0]}; |
|---|
| 52 | |
|---|
| 53 | endmodule // tlu_addern_32 |
|---|
