/////////////////////////////////////////////////////////////////////////                                                             ////////  WISHBONE Connection Matrix Priority Decoder                ////////                                                             ////////                                                             ////////  Author: Rudolf Usselmann                                   ////////          rudi@asics.ws                                      ////////                                                             ////////                                                             ////////  Downloaded from: http://www.opencores.org/cores/wb_conmax/ ////////                                                             /////////////////////////////////////////////////////////////////////////////                                                             //////// Copyright (C) 2000-2002 Rudolf Usselmann                    ////////                         www.asics.ws                        ////////                         rudi@asics.ws                       ////////                                                             //////// This source file may be used and distributed without        //////// restriction provided that this copyright statement is not   //////// removed from the file and that any derivative work contains //////// the original copyright notice and the associated disclaimer.////////                                                             ////////     THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY     //////// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED   //////// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS   //////// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR      //////// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,         //////// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    //////// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE   //////// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR        //////// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF  //////// LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT  //////// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT  //////// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE         //////// POSSIBILITY OF SUCH DAMAGE.                                 ////////                                                             ///////////////////////////////////////////////////////////////////////////  CVS Log////  $Id: wb_conmax_pri_dec.v,v 1.1.1.1 2008/01/13 13:20:39 ameziti Exp $////  $Date: 2008/01/13 13:20:39 $//  $Revision: 1.1.1.1 $//  $Author: ameziti $//  $Locker:  $//  $State: Exp $//// Change History://               $Log: wb_conmax_pri_dec.v,v $//               Revision 1.1.1.1  2008/01/13 13:20:39  ameziti//               First Import the project on the opencores.org CVS server////               Revision 1.2  2002/10/03 05:40:07  rudi//               Fixed a minor bug in parameter passing, updated headers and specification.////               Revision 1.1.1.1  2001/10/19 11:01:42  rudi//               WISHBONE CONMAX IP Core//////////`include "wb_conmax_defines.v"module wb_conmax_pri_dec(valid, pri_in, pri_out);//////////////////////////////////////////////////////////////////////// Module Parameters//parameter [1:0]	pri_sel = 2'd0;//////////////////////////////////////////////////////////////////////// Module IOs//input		valid;input	[1:0]	pri_in;output	[3:0]	pri_out;//////////////////////////////////////////////////////////////////////// Local Wires//wire	[3:0]	pri_out;reg	[3:0]	pri_out_d0;reg	[3:0]	pri_out_d1;//////////////////////////////////////////////////////////////////////// Priority Decoder//// 4 Priority Levelsalways @(valid or pri_in)	if(!valid)		pri_out_d1 = 4'b0001;	else	if(pri_in==2'h0)	pri_out_d1 = 4'b0001;	else	if(pri_in==2'h1)	pri_out_d1 = 4'b0010;	else	if(pri_in==2'h2)	pri_out_d1 = 4'b0100;	else			pri_out_d1 = 4'b1000;// 2 Priority Levelsalways @(valid or pri_in)	if(!valid)		pri_out_d0 = 4'b0001;	else	if(pri_in==2'h0)	pri_out_d0 = 4'b0001;	else			pri_out_d0 = 4'b0010;// Select Configured Priorityassign pri_out = (pri_sel==2'd0) ? 4'h0 : ( (pri_sel==1'd1) ? pri_out_d0 : pri_out_d1 );endmodule