/////////////////////////////////////////////////////////////////////////                                                             ////////  Discrete Cosine Transform Unit                             ////////                                                             ////////  Author: Richard Herveille                                  ////////          richard@asics.ws                                   ////////          www.asics.ws                                       ////////                                                             /////////////////////////////////////////////////////////////////////////////                                                             //////// Copyright (C) 2001 Richard Herveille                        ////////                    richard@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: dctu.v,v 1.3 2002/10/31 12:50:03 rherveille Exp $////  $Date: 2002/10/31 12:50:03 $//  $Revision: 1.3 $//  $Author: rherveille $//  $Locker:  $//  $State: Exp $//// Change History://               $Log: dctu.v,v $//               Revision 1.3  2002/10/31 12:50:03  rherveille//               *** empty log message ***////               Revision 1.2  2002/10/23 09:06:59  rherveille//               Improved many files.//               Fixed some bugs in Run-Length-Encoder.//               Removed dependency on ud_cnt and ro_cnt.//               Started (Motion)JPEG hardware encoder project.////synopsys translate_off`include "timescale.v"//synopsys translate_onmodule dctu(clk, ena, ddgo, x, y, ddin, dout);	parameter coef_width = 16;	parameter di_width = 8;	parameter [2:0] v = 0;	parameter [2:0] u = 0;	//	// inputs & outputs	//	input clk;	input ena;	input ddgo;               // double delayed go signal	input [2:0] x, y;	input  [di_width:1] ddin; // delayed data input	output [11:0] dout;	//	// variables	//	reg [      31:0] coef;	wire [coef_width +10:0] result;	`include "../../../dct/rtl/verilog/dct_cos_table.v"	//	// module body	//	// hookup cosine-table	always @(posedge clk)	  if(ena)	    coef <= #1 dct_cos_table(x, y, u, v);	// hookup dct-mac unit	dct_mac #(8, coef_width)	macu (		.clk(clk),		.ena(ena),		.dclr(ddgo),		.din(ddin),		.coef( coef[31:31 -coef_width +1] ),		.result(result)	);	assign dout = result[coef_width +10: coef_width -1];endmodule