170 lines
4.5 KiB
Coq
170 lines
4.5 KiB
Coq
|
/////////////////////////////////////////////////////////////////////
|
||
|
|
//// ////
|
||
|
|
//// Discrete Cosine Transform, DCT unit block ////
|
||
|
|
//// ////
|
||
|
|
//// 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: dctub.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: not supported by cvs2svn $
|
||
|
|
// 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_on
|
||
|
|
|
||
|
|
module dctub(clk, ena, ddgo, x, y, ddin,
|
||
|
|
dout0, dout1, dout2, dout3, dout4, dout5, dout6, dout7);
|
||
|
|
|
||
|
|
parameter coef_width = 16;
|
||
|
|
parameter di_width = 8;
|
||
|
|
parameter [2:0] v = 3'h0;
|
||
|
|
|
||
|
|
//
|
||
|
|
// inputs & outputs
|
||
|
|
//
|
||
|
|
input clk;
|
||
|
|
input ena;
|
||
|
|
input ddgo; // double delayed go strobe
|
||
|
|
input [2:0] x, y;
|
||
|
|
|
||
|
|
input [di_width:1] ddin; // delayed data input
|
||
|
|
output [11:0] dout0, dout1, dout2, dout3, dout4, dout5, dout6, dout7;
|
||
|
|
|
||
|
|
//
|
||
|
|
// module body
|
||
|
|
//
|
||
|
|
|
||
|
|
// Hookup DCT units
|
||
|
|
dctu #(coef_width, di_width, v, 3'h0)
|
||
|
|
dct_unit_0 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout0)
|
||
|
|
);
|
||
|
|
|
||
|
|
dctu #(coef_width, di_width, v, 3'h1)
|
||
|
|
dct_unit_1 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout1)
|
||
|
|
);
|
||
|
|
|
||
|
|
dctu #(coef_width, di_width, v, 3'h2)
|
||
|
|
dct_unit_2 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout2)
|
||
|
|
);
|
||
|
|
|
||
|
|
dctu #(coef_width, di_width, v, 3'h3)
|
||
|
|
dct_unit_3 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout3)
|
||
|
|
);
|
||
|
|
|
||
|
|
dctu #(coef_width, di_width, v, 3'h4)
|
||
|
|
dct_unit_4 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout4)
|
||
|
|
);
|
||
|
|
|
||
|
|
dctu #(coef_width, di_width, v, 3'h5)
|
||
|
|
dct_unit_5 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout5)
|
||
|
|
);
|
||
|
|
|
||
|
|
dctu #(coef_width, di_width, v, 3'h6)
|
||
|
|
dct_unit_6 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout6)
|
||
|
|
);
|
||
|
|
|
||
|
|
dctu #(coef_width, di_width, v, 3'h7)
|
||
|
|
dct_unit_7 (
|
||
|
|
.clk(clk),
|
||
|
|
.ena(ena),
|
||
|
|
.ddgo(ddgo),
|
||
|
|
.x(x),
|
||
|
|
.y(y),
|
||
|
|
.ddin(ddin),
|
||
|
|
.dout(dout7)
|
||
|
|
);
|
||
|
|
endmodule
|