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[/] [sparc64soc/] [trunk/] [T1-FPU/] [fpu_in2_gt_in1_2b.v] - Rev 2
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// ========== Copyright Header Begin ========================================== // // OpenSPARC T1 Processor File: fpu_in2_gt_in1_2b.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 ============================================ /////////////////////////////////////////////////////////////////////////////// // // Two bit comparison of two inputs that can have any value. // /////////////////////////////////////////////////////////////////////////////// module fpu_in2_gt_in1_2b ( din1, din2, din2_neq_din1, din2_gt_din1 ); input [1:0] din1; // input 1- 3 bits input [1:0] din2; // input 2- 3 bits output din2_neq_din1; // input 2 doesn't equal input 1 output din2_gt_din1; // input 2 is greater than input 1 wire [1:0] din2_eq_din1; wire din2_neq_din1; wire din2_gt_din1; assign din2_eq_din1[1:0]= (~(din1 ^ din2)); assign din2_neq_din1= (!(&din2_eq_din1)); assign din2_gt_din1= ((!din1[1]) && din2[1]) || (din2_eq_din1[1] && (!din1[0]) && din2[0]); endmodule