//--------------------------------------------------------------------------------------------------
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//--------------------------------------------------------------------------------------------------
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// Design : nova
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// Design : nova
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// Author(s) : Ke Xu
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// Author(s) : Ke Xu
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// Email : eexuke@yahoo.com
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// Email : eexuke@yahoo.com
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// File : Inter_pred_CPE.v
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// File : Inter_pred_CPE.v
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// Generated : Oct 14, 2005
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// Generated : Oct 14, 2005
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// Copyright (C) 2008 Ke Xu
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// Copyright (C) 2008 Ke Xu
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//-------------------------------------------------------------------------------------------------
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//-------------------------------------------------------------------------------------------------
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// Description
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// Description
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// Processing Element for Inter prediction of Chroma pixels
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// Processing Element for Inter prediction of Chroma pixels
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//-------------------------------------------------------------------------------------------------
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//-------------------------------------------------------------------------------------------------
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// synopsys translate_off
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// synopsys translate_off
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`include "timescale.v"
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`include "timescale.v"
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// synopsys translate_on
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// synopsys translate_on
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`include "nova_defines.v"
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`include "nova_defines.v"
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module Inter_pred_CPE (xFracC,yFracC,
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module Inter_pred_CPE (xFracC,yFracC,
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Inter_C_window_0_0,Inter_C_window_1_0,Inter_C_window_2_0,
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Inter_C_window_0_0,Inter_C_window_1_0,Inter_C_window_2_0,
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Inter_C_window_0_1,Inter_C_window_1_1,Inter_C_window_2_1,
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Inter_C_window_0_1,Inter_C_window_1_1,Inter_C_window_2_1,
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Inter_C_window_0_2,Inter_C_window_1_2,Inter_C_window_2_2,
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Inter_C_window_0_2,Inter_C_window_1_2,Inter_C_window_2_2,
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CPE0_out,CPE1_out,CPE2_out,CPE3_out);
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CPE0_out,CPE1_out,CPE2_out,CPE3_out);
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input [2:0] xFracC,yFracC;
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input [2:0] xFracC,yFracC;
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input [7:0] Inter_C_window_0_0,Inter_C_window_1_0,Inter_C_window_2_0;
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input [7:0] Inter_C_window_0_0,Inter_C_window_1_0,Inter_C_window_2_0;
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input [7:0] Inter_C_window_0_1,Inter_C_window_1_1,Inter_C_window_2_1;
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input [7:0] Inter_C_window_0_1,Inter_C_window_1_1,Inter_C_window_2_1;
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input [7:0] Inter_C_window_0_2,Inter_C_window_1_2,Inter_C_window_2_2;
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input [7:0] Inter_C_window_0_2,Inter_C_window_1_2,Inter_C_window_2_2;
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output [7:0] CPE0_out,CPE1_out,CPE2_out,CPE3_out;
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output [7:0] CPE0_out,CPE1_out,CPE2_out,CPE3_out;
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wire [3:0] xFracC_n,yFracC_n;
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wire [3:0] xFracC_n,yFracC_n;
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assign xFracC_n = 4'b1000 - xFracC;
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assign xFracC_n = 4'b1000 - xFracC;
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assign yFracC_n = 4'b1000 - yFracC;
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assign yFracC_n = 4'b1000 - yFracC;
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CPE CPE0 (
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CPE CPE0 (
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.xFracC(xFracC),
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.xFracC(xFracC),
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.yFracC(yFracC),
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.yFracC(yFracC),
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.xFracC_n(xFracC_n),
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.xFracC_n(xFracC_n),
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.yFracC_n(yFracC_n),
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.yFracC_n(yFracC_n),
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.a(Inter_C_window_0_0),
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.a(Inter_C_window_0_0),
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.b(Inter_C_window_1_0),
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.b(Inter_C_window_1_0),
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.c(Inter_C_window_0_1),
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.c(Inter_C_window_0_1),
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.d(Inter_C_window_1_1),
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.d(Inter_C_window_1_1),
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.out(CPE0_out)
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.out(CPE0_out)
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);
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);
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CPE CPE1 (
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CPE CPE1 (
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.xFracC(xFracC),
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.xFracC(xFracC),
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.yFracC(yFracC),
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.yFracC(yFracC),
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.xFracC_n(xFracC_n),
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.xFracC_n(xFracC_n),
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.yFracC_n(yFracC_n),
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.yFracC_n(yFracC_n),
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.a(Inter_C_window_1_0),
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.a(Inter_C_window_1_0),
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.b(Inter_C_window_2_0),
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.b(Inter_C_window_2_0),
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.c(Inter_C_window_1_1),
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.c(Inter_C_window_1_1),
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.d(Inter_C_window_2_1),
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.d(Inter_C_window_2_1),
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.out(CPE1_out)
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.out(CPE1_out)
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);
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);
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CPE CPE2 (
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CPE CPE2 (
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.xFracC(xFracC),
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.xFracC(xFracC),
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.yFracC(yFracC),
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.yFracC(yFracC),
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.xFracC_n(xFracC_n),
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.xFracC_n(xFracC_n),
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.yFracC_n(yFracC_n),
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.yFracC_n(yFracC_n),
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.a(Inter_C_window_0_1),
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.a(Inter_C_window_0_1),
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.b(Inter_C_window_1_1),
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.b(Inter_C_window_1_1),
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.c(Inter_C_window_0_2),
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.c(Inter_C_window_0_2),
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.d(Inter_C_window_1_2),
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.d(Inter_C_window_1_2),
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.out(CPE2_out)
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.out(CPE2_out)
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);
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);
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CPE CPE3 (
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CPE CPE3 (
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.xFracC(xFracC),
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.xFracC(xFracC),
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.yFracC(yFracC),
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.yFracC(yFracC),
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.xFracC_n(xFracC_n),
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.xFracC_n(xFracC_n),
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.yFracC_n(yFracC_n),
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.yFracC_n(yFracC_n),
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.a(Inter_C_window_1_1),
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.a(Inter_C_window_1_1),
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.b(Inter_C_window_2_1),
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.b(Inter_C_window_2_1),
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.c(Inter_C_window_1_2),
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.c(Inter_C_window_1_2),
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.d(Inter_C_window_2_2),
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.d(Inter_C_window_2_2),
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.out(CPE3_out)
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.out(CPE3_out)
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);
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);
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endmodule
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endmodule
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module CPE (xFracC,yFracC,xFracC_n,yFracC_n,a,b,c,d,out);
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module CPE (xFracC,yFracC,xFracC_n,yFracC_n,a,b,c,d,out);
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input [2:0] xFracC,yFracC;
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input [2:0] xFracC,yFracC;
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input [3:0] xFracC_n,yFracC_n;
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input [3:0] xFracC_n,yFracC_n;
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input [7:0] a,b,c,d;
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input [7:0] a,b,c,d;
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output [7:0] out;
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output [7:0] out;
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wire [13:0] CPE_base0_out,CPE_base1_out,CPE_base2_out,CPE_base3_out;
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wire [13:0] CPE_base0_out,CPE_base1_out,CPE_base2_out,CPE_base3_out;
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wire [13:0] out_tmp;
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wire [13:0] out_tmp;
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CPE_base CPE_base0 (
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CPE_base CPE_base0 (
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.x(xFracC_n),
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.x(xFracC_n),
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.y(yFracC_n),
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.y(yFracC_n),
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.Int_pel(a),
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.Int_pel(a),
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.out(CPE_base0_out)
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.out(CPE_base0_out)
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);
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);
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CPE_base CPE_base1 (
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CPE_base CPE_base1 (
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.x({1'b0,xFracC}),
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.x({1'b0,xFracC}),
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.y(yFracC_n),
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.y(yFracC_n),
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.Int_pel(b),
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.Int_pel(b),
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.out(CPE_base1_out)
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.out(CPE_base1_out)
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);
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);
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CPE_base CPE_base2 (
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CPE_base CPE_base2 (
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.x(xFracC_n),
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.x(xFracC_n),
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.y({1'b0,yFracC}),
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.y({1'b0,yFracC}),
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.Int_pel(c),
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.Int_pel(c),
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.out(CPE_base2_out)
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.out(CPE_base2_out)
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);
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);
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CPE_base CPE_base3 (
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CPE_base CPE_base3 (
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.x({1'b0,xFracC}),
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.x({1'b0,xFracC}),
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.y({1'b0,yFracC}),
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.y({1'b0,yFracC}),
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.Int_pel(d),
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.Int_pel(d),
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.out(CPE_base3_out)
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.out(CPE_base3_out)
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);
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);
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assign out_tmp = (CPE_base0_out + CPE_base1_out) + (CPE_base2_out + CPE_base3_out) + 32;
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assign out_tmp = (CPE_base0_out + CPE_base1_out) + (CPE_base2_out + CPE_base3_out) + 32;
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assign out = out_tmp[13:6];
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assign out = out_tmp[13:6];
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endmodule
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endmodule
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module CPE_base (x,y,Int_pel,out);
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module CPE_base (x,y,Int_pel,out);
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input [3:0] x;
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input [3:0] x;
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input [3:0] y;
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input [3:0] y;
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input [7:0] Int_pel;
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input [7:0] Int_pel;
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output [13:0] out;
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output [13:0] out;
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wire [10:0] sum_x3;
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wire [10:0] sum_x3;
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wire [9:0] sum_x2;
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wire [9:0] sum_x2;
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wire [8:0] sum_x1;
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wire [8:0] sum_x1;
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wire [7:0] sum_x0;
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wire [7:0] sum_x0;
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wire [10:0] sum_x;
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wire [10:0] sum_x;
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wire [13:0] sum_y3;
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wire [13:0] sum_y3;
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wire [12:0] sum_y2;
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wire [12:0] sum_y2;
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wire [11:0] sum_y1;
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wire [11:0] sum_y1;
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wire [10:0] sum_y0;
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wire [10:0] sum_y0;
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assign sum_x3 = (x[3] == 1'b1)? {Int_pel,3'b0}:0;
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assign sum_x3 = (x[3] == 1'b1)? {Int_pel,3'b0}:0;
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assign sum_x2 = (x[2] == 1'b1)? {Int_pel,2'b0}:0;
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assign sum_x2 = (x[2] == 1'b1)? {Int_pel,2'b0}:0;
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assign sum_x1 = (x[1] == 1'b1)? {Int_pel,1'b0}:0;
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assign sum_x1 = (x[1] == 1'b1)? {Int_pel,1'b0}:0;
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assign sum_x0 = (x[0] == 1'b1)? Int_pel:0;
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assign sum_x0 = (x[0] == 1'b1)? Int_pel:0;
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assign sum_x = (sum_x3 + sum_x2) + (sum_x1 + sum_x0);
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assign sum_x = (sum_x3 + sum_x2) + (sum_x1 + sum_x0);
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assign sum_y3 = (y[3] == 1'b1)? {sum_x,3'b0}:0;
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assign sum_y3 = (y[3] == 1'b1)? {sum_x,3'b0}:0;
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assign sum_y2 = (y[2] == 1'b1)? {sum_x,2'b0}:0;
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assign sum_y2 = (y[2] == 1'b1)? {sum_x,2'b0}:0;
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assign sum_y1 = (y[1] == 1'b1)? {sum_x,1'b0}:0;
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assign sum_y1 = (y[1] == 1'b1)? {sum_x,1'b0}:0;
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assign sum_y0 = (y[0] == 1'b1)? sum_x:0;
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assign sum_y0 = (y[0] == 1'b1)? sum_x:0;
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assign out = (sum_y3 + sum_y2) + (sum_y1 + sum_y0);
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assign out = (sum_y3 + sum_y2) + (sum_y1 + sum_y0);
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endmodule
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endmodule
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