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[/] [sparc64soc/] [trunk/] [T1-CPU/] [lsu/] [lsu_dc_parity_gen.v] - Rev 2
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// ========== Copyright Header Begin ========================================== // // OpenSPARC T1 Processor File: lsu_dc_parity_gen.v // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. // // The above named program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public // License version 2 as published by the Free Software Foundation. // // The above named 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 work; if not, write to the Free Software // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. // // ========== Copyright Header End ============================================ //////////////////////////////////////////////////////////////////////// // // Module Name: lsu_dc_parity_gen.v // Description: Parity Generator based on odd parity module lsu_dc_parity_gen (parity_out, data_in); // Changed the default to match that of dcache width parameter WIDTH = 8 ; parameter NUM = 16 ; input [WIDTH * NUM - 1 : 0] data_in ; // data in output [NUM - 1 : 0] parity_out ; // parity output reg [NUM - 1 : 0] parity ; // parity output integer i ; integer j ; always @(data_in) for (i = 0; i <= NUM - 1 ; i = i + 1) begin parity[i] = 1'b0 ; for (j = WIDTH * i; j <= WIDTH * (i + 1) - 1 ; j = j + 1) begin parity[i] = parity[i] ^ data_in[j] ; end end assign parity_out[NUM - 1 : 0] = parity[NUM - 1 : 0]; endmodule