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[/] [jt51/] [trunk/] [jt51/] [jt51_sh2.v] - Rev 2
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/* This file is part of JT51. JT51 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, either version 3 of the License, or (at your option) any later version. JT51 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 JT51. If not, see <http://www.gnu.org/licenses/>. Author: Jose Tejada Gomez. Twitter: @topapate Version: 1.0 Date: 27-10-2016 */ `timescale 1ns / 1ps module jt51_sh2 #(parameter width=5, stages=32 ) ( input clk, input en, input ld, input [width-1:0] din, output [width-1:0] drop ); genvar i; generate for( i=0; i<width; i=i+1) begin: shifter jt51_sh1 #(.stages(stages)) u_sh1( .clk ( clk ), .en ( en ), .ld ( ld ), .din ( din[i] ), .drop ( drop[i]) ); end endgenerate endmodule module jt51_sh1 #(parameter stages=32) ( input clk, input en, input ld, input din, output drop ); reg [stages-1:0] shift; assign drop = shift[0]; wire next = ld ? din : drop; always @(posedge clk ) if( en ) shift <= {next, shift[stages-1:1]}; endmodule