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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.

// 

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// 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.

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// 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.

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// ========== 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