// ========== Copyright Header Begin ========================================== // // OpenSPARC T2 Processor File: n2_l2t_cmp_3bx2.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 n2_l2t_cmp_3bx2 ( sao_mx1_h, sao_mx1_l, sao_mx0_h, sao_mx0_l, lkuptag_d1, l1clk_d, w1_cmp3b, w0_cmp3b) ; input [2:0] sao_mx1_h; input [2:0] sao_mx1_l; input [2:0] sao_mx0_h; input [2:0] sao_mx0_l; input [2:0] lkuptag_d1; input l1clk_d; output w1_cmp3b; output w0_cmp3b; reg w1_cmp3b; reg w0_cmp3b; //Compare ouput is 0 for match and 1 for mismatch always @(l1clk_d or sao_mx1_h or sao_mx1_l or sao_mx0_h or sao_mx0_l or lkuptag_d1) if (l1clk_d) // Precharge mode begin w1_cmp3b = 1'b0; w0_cmp3b = 1'b0; end else if (~l1clk_d ) // Evaluation mode begin w1_cmp3b = (lkuptag_d1[2] && sao_mx1_l[2]) || (~lkuptag_d1[2] && sao_mx1_h[2]) || (lkuptag_d1[1] && sao_mx1_l[1]) || (~lkuptag_d1[1] && sao_mx1_h[1]) || (lkuptag_d1[0] && sao_mx1_l[0]) || (~lkuptag_d1[0] && sao_mx1_h[0]); w0_cmp3b = (lkuptag_d1[2] && sao_mx0_l[2]) || (~lkuptag_d1[2] && sao_mx0_h[2]) || (lkuptag_d1[1] && sao_mx0_l[1]) || (~lkuptag_d1[1] && sao_mx0_h[1]) || (lkuptag_d1[0] && sao_mx0_l[0]) || (~lkuptag_d1[0] && sao_mx0_h[0]); end endmodule // n2_l2t_cmp_3bx2