// ---------------------------------------------------------------------- // Copyright (c) 2016, The Regents of the University of California All // rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // // * Neither the name of The Regents of the University of California // nor the names of its contributors may be used to endorse or // promote products derived from this software without specific // prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL REGENTS OF THE // UNIVERSITY OF CALIFORNIA 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. // ---------------------------------------------------------------------- //---------------------------------------------------------------------------- // Filename: demux.v // Version: 1.00.a // Verilog Standard: Verilog-2001 // Description: A simple demultiplexer // Author: Dustin Richmond (@darichmond) //----------------------------------------------------------------------------- `timescale 1ns/1ns `include "functions.vh" module demux #( parameter C_OUTPUTS = 12, parameter C_WIDTH = 1 ) ( input [C_WIDTH-1:0] WR_DATA,// Inputs input [`clog2s(C_OUTPUTS)-1:0] WR_SEL,// Selector output [C_OUTPUTS*C_WIDTH-1:0] RD_DATA// Outputs ); genvar i; reg [C_OUTPUTS*C_WIDTH-1:0] _rOut; assign RD_DATA = _rOut; always @(*) begin _rOut = 0; _rOut[C_WIDTH*WR_SEL +: C_WIDTH] = WR_DATA; end endmodule