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//////////////////////////////////////////////////////////////////////
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//// ////
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//// cavlc_read_total_coeffs ////
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//// ////
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//// Description ////
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//// decode total_coeffs and trailing ones ////
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//// ////
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//// Author(s): ////
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//// - bin qiu, qiubin@opencores.org ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// Copyright (C) 2011 Authors and OPENCORES.ORG ////
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//// ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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//// Public License along with this source; if not, download it ////
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//// from http://www.opencores.org/lgpl.shtml ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//2011-8-7 initial creation
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//2011-8-7 initial creation
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//2011-8-9 optimize output mux
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//2011-8-9 optimize output mux
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//2011-9-10 reduce nC to 5 bits
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`include "defines.v"
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`include "defines.v"
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module cavlc_read_total_coeffs(
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module cavlc_read_total_coeffs
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clk, rst_n,
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(
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clk,
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rst_n,
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ena,
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ena,
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start,
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start,
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sel,
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sel,
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rbsp, nC,
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rbsp, nC,
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TrailingOnes,
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TrailingOnes, TotalCoeff,
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TotalCoeff,
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TrailingOnes_comb, TotalCoeff_comb,
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TrailingOnes_comb,
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TotalCoeff_comb,
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len_comb
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len_comb
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);
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);
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//------------------------
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//------------------------
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//ports
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//ports
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//------------------------
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//------------------------
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input clk, rst_n;
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input clk;
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input rst_n;
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input ena;
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input ena;
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input start;
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input start;
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input sel;
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input sel;
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input [0:15] rbsp;
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input [0:15] rbsp;
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input signed [4:0] nC;
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input signed [5:0] nC;
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output [4:0] TotalCoeff; //range from 0 to 16
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output [4:0] TotalCoeff; //range from 0 to 16
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output [1:0] TrailingOnes; //range from 0 to 3
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output [1:0] TrailingOnes; //range from 0 to 3
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output [4:0] TotalCoeff_comb; //unsaved result of TotalCoeff_comb
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output [4:0] TotalCoeff_comb; //unsaved result of TotalCoeff_comb
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output [1:0] TrailingOnes_comb; //unsaved result of TrailingOnes_comb
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output [1:0] TrailingOnes_comb; //unsaved result of TrailingOnes_comb
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output [4:0] len_comb; //indicate how many rbsp bit consumed, range from 0 to 16
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output [4:0] len_comb; //indicate how many rbsp bit consumed, range from 0 to 16
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//------------------------
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//------------------------
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//regs
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//regs
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//------------------------
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//------------------------
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reg [4:0] TotalCoeff_comb;
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reg [4:0] TotalCoeff_comb;
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reg [1:0] TrailingOnes_comb;
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reg [1:0] TrailingOnes_comb;
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reg [4:0] len_comb;
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reg [4:0] len_comb;
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//for nC >= 0 && nC < 2
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//for nC >= 0 && nC < 2
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reg [4:0] TotalCoeff_1;
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reg [4:0] TotalCoeff_1;
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reg [1:0] TrailingOnes_1;
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reg [1:0] TrailingOnes_1;
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reg [4:0] len_1;
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reg [4:0] len_1;
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//for nC >= 2 && nC < 4
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//for nC >= 2 && nC < 4
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reg [4:0] TotalCoeff_2;
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reg [4:0] TotalCoeff_2;
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reg [1:0] TrailingOnes_2;
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reg [1:0] TrailingOnes_2;
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reg [4:0] len_2;
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reg [4:0] len_2;
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//for nC >= 4 && nC < 8
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//for nC >= 4 && nC < 8
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reg [4:0] TotalCoeff_3;
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reg [4:0] TotalCoeff_3;
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reg [1:0] TrailingOnes_3;
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reg [1:0] TrailingOnes_3;
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reg [4:0] len_3;
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reg [4:0] len_3;
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//for nC >= 8
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//for nC >= 8
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reg [4:0] TotalCoeff_4;
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reg [4:0] TotalCoeff_4;
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reg [1:0] TrailingOnes_4;
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reg [1:0] TrailingOnes_4;
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reg [4:0] len_4;
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reg [4:0] len_4;
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//for nC == -1
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//for nC == -1
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reg [4:0] TotalCoeff_5;
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reg [4:0] TotalCoeff_5;
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reg [1:0] TrailingOnes_5;
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reg [1:0] TrailingOnes_5;
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reg [4:0] len_5;
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reg [4:0] len_5;
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//------------------------
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//------------------------
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//FFs
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//FFs
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//------------------------
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//------------------------
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//len is not necessary to be saved
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//len is not necessary to be saved
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//TotalCoeff & TrailingOnes should be valid when cavlc_state == `cavlc_read_total_coeffs_s
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//TotalCoeff & TrailingOnes should be valid when cavlc_state == `cavlc_read_total_coeffs_s
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//to do that,combinational result "TotalCoeff_comb & TrailingOnes_comb" are outputed
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//to do that,combinational result "TotalCoeff_comb & TrailingOnes_comb" are outputed
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reg [0:15] rbsp_1;
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reg [0:15] rbsp_1;
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reg [0:13] rbsp_2;
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reg [0:13] rbsp_2;
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reg [0:9] rbsp_3;
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reg [0:9] rbsp_3;
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reg [0:5] rbsp_4;
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reg [0:5] rbsp_4;
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reg [0:7] rbsp_5;
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reg [0:7] rbsp_5;
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reg [4:0] TotalCoeff;
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reg [4:0] TotalCoeff;
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reg [1:0] TrailingOnes;
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reg [1:0] TrailingOnes;
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//------------------------
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//------------------------
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//input mux
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//input mux
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//------------------------
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//------------------------
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wire rbsp_refresh = ena && start;
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always @(posedge clk or negedge rst_n)
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always @(posedge clk or negedge rst_n)
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if (!rst_n)
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if (!rst_n)
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begin
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begin
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rbsp_1 <= 0;
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rbsp_1 <= 0;
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rbsp_2 <= 0;
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rbsp_2 <= 0;
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rbsp_3 <= 0;
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rbsp_3 <= 0;
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rbsp_4 <= 0;
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rbsp_4 <= 0;
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rbsp_5 <= 0;
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rbsp_5 <= 0;
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end
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end
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else if (rbsp_refresh)
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else if (ena && start)
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begin
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begin
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if (nC[4])
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if (nC[5])
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rbsp_5 <= rbsp[0:7];
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rbsp_5 <= rbsp[0:7];
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else if (nC[3])
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else if ( nC[4] || nC[3])
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rbsp_4 <= rbsp[0:5];
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rbsp_4 <= rbsp[0:5];
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else if (nC[2])
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else if (nC[2])
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rbsp_3 <= rbsp[0:9];
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rbsp_3 <= rbsp[0:9];
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else if (nC[1])
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else if (nC[1])
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rbsp_2 <= rbsp[0:13];
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rbsp_2 <= rbsp[0:13];
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else
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else
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rbsp_1 <= rbsp;
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rbsp_1 <= rbsp;
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end
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end
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//------------------------
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//------------------------
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//nC >= 0 && nC < 2
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//nC >= 0 && nC < 2
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//------------------------
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//------------------------
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always @(rbsp_1)
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always @(rbsp_1)
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case (1'b1)
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case (1'b1)
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rbsp_1[0] : begin
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rbsp_1[0] : begin
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TrailingOnes_1 <= 0;
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TrailingOnes_1 <= 0;
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TotalCoeff_1 <= 0;
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TotalCoeff_1 <= 0;
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len_1 <= 1;
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len_1 <= 1;
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end
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end
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rbsp_1[1] : begin
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rbsp_1[1] : begin
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TrailingOnes_1 <= 1;
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TrailingOnes_1 <= 1;
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TotalCoeff_1 <= 1;
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TotalCoeff_1 <= 1;
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len_1 <= 2;
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len_1 <= 2;
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end
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end
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rbsp_1[2] : begin
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rbsp_1[2] : begin
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TrailingOnes_1 <= 2;
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TrailingOnes_1 <= 2;
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TotalCoeff_1 <= 2;
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TotalCoeff_1 <= 2;
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len_1 <= 3;
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len_1 <= 3;
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end
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end
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rbsp_1[3] : begin
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rbsp_1[3] : begin
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if (rbsp_1[4] == 'b1) begin
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if (rbsp_1[4] == 'b1) begin
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TrailingOnes_1 <= 3;
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TrailingOnes_1 <= 3;
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TotalCoeff_1 <= 3;
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TotalCoeff_1 <= 3;
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len_1 <= 5;
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len_1 <= 5;
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end
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end
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else if (rbsp_1[5] == 'b1) begin
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else if (rbsp_1[5] == 'b1) begin
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TrailingOnes_1 <= 0;
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TrailingOnes_1 <= 0;
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TotalCoeff_1 <= 1;
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TotalCoeff_1 <= 1;
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len_1 <= 6;
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len_1 <= 6;
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end
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end
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else begin
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else begin
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TrailingOnes_1 <= 1;
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TrailingOnes_1 <= 1;
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TotalCoeff_1 <= 2;
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TotalCoeff_1 <= 2;
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len_1 <= 6;
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len_1 <= 6;
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end
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end
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end
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end
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rbsp_1[4] : begin
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rbsp_1[4] : begin
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if (rbsp_1[5] == 'b1) begin
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if (rbsp_1[5] == 'b1) begin
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TrailingOnes_1 <= 3;
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TrailingOnes_1 <= 3;
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TotalCoeff_1 <= 4;
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TotalCoeff_1 <= 4;
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len_1 <= 6;
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len_1 <= 6;
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end
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end
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else if (rbsp_1[6] == 'b1) begin
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else if (rbsp_1[6] == 'b1) begin
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TrailingOnes_1 <= 2;
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TrailingOnes_1 <= 2;
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TotalCoeff_1 <= 3;
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TotalCoeff_1 <= 3;
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len_1 <= 7;
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len_1 <= 7;
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end
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end
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else begin
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else begin
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TrailingOnes_1 <= 3;
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TrailingOnes_1 <= 3;
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TotalCoeff_1 <= 5;
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TotalCoeff_1 <= 5;
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len_1 <= 7;
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len_1 <= 7;
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end
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end
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end
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end
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rbsp_1[5] : begin
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rbsp_1[5] : begin
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len_1 <= 8;
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len_1 <= 8;
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if (rbsp_1[6:7] == 'b11) begin
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if (rbsp_1[6:7] == 'b11) begin
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TrailingOnes_1 <= 0;
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TrailingOnes_1 <= 0;
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TotalCoeff_1 <= 2;
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TotalCoeff_1 <= 2;
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end
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end
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else if (rbsp_1[6:7] == 'b10) begin
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else if (rbsp_1[6:7] == 'b10) begin
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TrailingOnes_1 <= 1;
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TrailingOnes_1 <= 1;
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TotalCoeff_1 <= 3;
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TotalCoeff_1 <= 3;
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end
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end
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else if (rbsp_1[6:7] == 'b01) begin
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else if (rbsp_1[6:7] == 'b01) begin
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TrailingOnes_1 <= 2;
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TrailingOnes_1 <= 2;
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TotalCoeff_1 <= 4;
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TotalCoeff_1 <= 4;
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end
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end
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else begin
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else begin
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TrailingOnes_1 <= 3;
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TrailingOnes_1 <= 3;
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TotalCoeff_1 <= 6;
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TotalCoeff_1 <= 6;
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end
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end
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end
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end
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rbsp_1[6] : begin
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rbsp_1[6] : begin
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len_1 <= 9;
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len_1 <= 9;
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if (rbsp_1[7:8] == 2'b11) begin
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if (rbsp_1[7:8] == 2'b11) begin
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TrailingOnes_1 <= 0;
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TrailingOnes_1 <= 0;
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TotalCoeff_1 <= 3;
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TotalCoeff_1 <= 3;
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end
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end
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else if (rbsp_1[7:8] == 2'b10) begin
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else if (rbsp_1[7:8] == 2'b10) begin
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TrailingOnes_1 <= 1;
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TrailingOnes_1 <= 1;
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TotalCoeff_1 <= 4;
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TotalCoeff_1 <= 4;
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end
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end
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else if (rbsp_1[7:8] == 2'b01) begin
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else if (rbsp_1[7:8] == 2'b01) begin
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TrailingOnes_1 <= 2;
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TrailingOnes_1 <= 2;
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TotalCoeff_1 <= 5;
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TotalCoeff_1 <= 5;
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end
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end
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else begin
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else begin
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TrailingOnes_1 <= 3;
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TrailingOnes_1 <= 3;
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TotalCoeff_1 <= 7;
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TotalCoeff_1 <= 7;
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end
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end
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end
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end
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rbsp_1[7] : begin
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rbsp_1[7] : begin
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len_1 <= 10;
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len_1 <= 10;
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if (rbsp_1[8:9] == 2'b11) begin
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if (rbsp_1[8:9] == 2'b11) begin
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TrailingOnes_1 <= 0;
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TrailingOnes_1 <= 0;
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TotalCoeff_1 <= 4;
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TotalCoeff_1 <= 4;
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end
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end
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else if (rbsp_1[8:9] == 2'b10) begin
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else if (rbsp_1[8:9] == 2'b10) begin
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TrailingOnes_1 <= 1;
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TrailingOnes_1 <= 1;
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TotalCoeff_1 <= 5;
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TotalCoeff_1 <= 5;
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end
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end
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else if (rbsp_1[8:9] == 2'b01) begin
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else if (rbsp_1[8:9] == 2'b01) begin
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TrailingOnes_1 <= 2;
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TrailingOnes_1 <= 2;
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TotalCoeff_1 <= 6;
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TotalCoeff_1 <= 6;
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end
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end
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else begin
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else begin
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TrailingOnes_1 <= 3;
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TrailingOnes_1 <= 3;
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TotalCoeff_1 <= 8;
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TotalCoeff_1 <= 8;
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end
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end
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end
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end
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rbsp_1[8] : begin
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rbsp_1[8] : begin
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len_1 <= 11;
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len_1 <= 11;
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if (rbsp_1[9:10] == 2'b11) begin
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if (rbsp_1[9:10] == 2'b11) begin
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TrailingOnes_1 <= 0;
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TrailingOnes_1 <= 0;
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TotalCoeff_1 <= 5;
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TotalCoeff_1 <= 5;
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end
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end
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else if (rbsp_1[9:10] == 2'b10) begin
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else if (rbsp_1[9:10] == 2'b10) begin
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TrailingOnes_1 <= 1;
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TrailingOnes_1 <= 1;
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TotalCoeff_1 <= 6;
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TotalCoeff_1 <= 6;
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end
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end
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else if (rbsp_1[9:10] == 2'b01) begin
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else if (rbsp_1[9:10] == 2'b01) begin
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TrailingOnes_1 <= 2;
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TrailingOnes_1 <= 2;
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TotalCoeff_1 <= 7;
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TotalCoeff_1 <= 7;
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end
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end
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else begin
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else begin
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TrailingOnes_1 <= 3;
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TrailingOnes_1 <= 3;
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TotalCoeff_1 <= 9;
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TotalCoeff_1 <= 9;
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end
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end
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end
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end
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rbsp_1[9] : begin
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rbsp_1[9] : begin
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len_1 <= 13;
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len_1 <= 13;
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if (rbsp_1[10:12] == 3'b111) begin
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if (rbsp_1[10:12] == 3'b111) begin
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TrailingOnes_1 <= 0;
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TrailingOnes_1 <= 0;
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TotalCoeff_1 <= 6;
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TotalCoeff_1 <= 6;
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end
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end
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else if (rbsp_1[10:12] == 3'b011) begin
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else if (rbsp_1[10:12] == 3'b011) begin
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TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 7;
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TotalCoeff_1 <= 7;
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end
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end
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else if (rbsp_1[10:12] == 3'b110) begin
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else if (rbsp_1[10:12] == 3'b110) begin
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TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 7;
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TotalCoeff_1 <= 7;
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end
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end
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else if (rbsp_1[10:12] == 3'b000) begin
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else if (rbsp_1[10:12] == 3'b000) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 8;
|
TotalCoeff_1 <= 8;
|
end
|
end
|
else if (rbsp_1[10:12] == 3'b010) begin
|
else if (rbsp_1[10:12] == 3'b010) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 8;
|
TotalCoeff_1 <= 8;
|
end
|
end
|
else if (rbsp_1[10:12] == 3'b101) begin
|
else if (rbsp_1[10:12] == 3'b101) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 8;
|
TotalCoeff_1 <= 8;
|
end
|
end
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else if (rbsp_1[10:12] == 3'b001) begin
|
else if (rbsp_1[10:12] == 3'b001) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 9;
|
TotalCoeff_1 <= 9;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_1 <= 3;
|
TrailingOnes_1 <= 3;
|
TotalCoeff_1 <= 10;
|
TotalCoeff_1 <= 10;
|
end
|
end
|
end
|
end
|
rbsp_1[10] : begin
|
rbsp_1[10] : begin
|
len_1 <= 14;
|
len_1 <= 14;
|
if (rbsp_1[11:13] == 3'b111) begin
|
if (rbsp_1[11:13] == 3'b111) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 9;
|
TotalCoeff_1 <= 9;
|
end
|
end
|
else if (rbsp_1[11:13] == 3'b110) begin
|
else if (rbsp_1[11:13] == 3'b110) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 9;
|
TotalCoeff_1 <= 9;
|
end
|
end
|
else if (rbsp_1[11:13] == 3'b011) begin
|
else if (rbsp_1[11:13] == 3'b011) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 10;
|
TotalCoeff_1 <= 10;
|
end
|
end
|
else if (rbsp_1[11:13] == 3'b010) begin
|
else if (rbsp_1[11:13] == 3'b010) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 10;
|
TotalCoeff_1 <= 10;
|
end
|
end
|
else if (rbsp_1[11:13] == 3'b101) begin
|
else if (rbsp_1[11:13] == 3'b101) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 10;
|
TotalCoeff_1 <= 10;
|
end
|
end
|
else if (rbsp_1[11:13] == 3'b001) begin
|
else if (rbsp_1[11:13] == 3'b001) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 11;
|
TotalCoeff_1 <= 11;
|
end
|
end
|
else if (rbsp_1[11:13] == 3'b100) begin
|
else if (rbsp_1[11:13] == 3'b100) begin
|
TrailingOnes_1 <= 3;
|
TrailingOnes_1 <= 3;
|
TotalCoeff_1 <= 11;
|
TotalCoeff_1 <= 11;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_1 <= 3;
|
TrailingOnes_1 <= 3;
|
TotalCoeff_1 <= 12;
|
TotalCoeff_1 <= 12;
|
end
|
end
|
end
|
end
|
rbsp_1[11] : begin
|
rbsp_1[11] : begin
|
len_1 <= 15;
|
len_1 <= 15;
|
if (rbsp_1[12:14] == 3'b111) begin
|
if (rbsp_1[12:14] == 3'b111) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 11;
|
TotalCoeff_1 <= 11;
|
end
|
end
|
else if (rbsp_1[12:14] == 3'b110) begin
|
else if (rbsp_1[12:14] == 3'b110) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 11;
|
TotalCoeff_1 <= 11;
|
end
|
end
|
else if (rbsp_1[12:14] == 3'b011) begin
|
else if (rbsp_1[12:14] == 3'b011) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 12;
|
TotalCoeff_1 <= 12;
|
end
|
end
|
else if (rbsp_1[12:14] == 3'b010) begin
|
else if (rbsp_1[12:14] == 3'b010) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 12;
|
TotalCoeff_1 <= 12;
|
end
|
end
|
else if (rbsp_1[12:14] == 3'b101) begin
|
else if (rbsp_1[12:14] == 3'b101) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 12;
|
TotalCoeff_1 <= 12;
|
end
|
end
|
else if (rbsp_1[12:14] == 3'b001) begin
|
else if (rbsp_1[12:14] == 3'b001) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 13;
|
TotalCoeff_1 <= 13;
|
end
|
end
|
else if (rbsp_1[12:14] == 3'b100) begin
|
else if (rbsp_1[12:14] == 3'b100) begin
|
TrailingOnes_1 <= 3;
|
TrailingOnes_1 <= 3;
|
TotalCoeff_1 <= 13;
|
TotalCoeff_1 <= 13;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_1 <= 3;
|
TrailingOnes_1 <= 3;
|
TotalCoeff_1 <= 14;
|
TotalCoeff_1 <= 14;
|
end
|
end
|
end
|
end
|
rbsp_1[12] : begin
|
rbsp_1[12] : begin
|
len_1 <= 16;
|
len_1 <= 16;
|
if (rbsp_1[13:15] == 3'b111) begin
|
if (rbsp_1[13:15] == 3'b111) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 13;
|
TotalCoeff_1 <= 13;
|
end
|
end
|
else if (rbsp_1[13:15] == 3'b011) begin
|
else if (rbsp_1[13:15] == 3'b011) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 14;
|
TotalCoeff_1 <= 14;
|
end
|
end
|
else if (rbsp_1[13:15] == 3'b110) begin
|
else if (rbsp_1[13:15] == 3'b110) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 14;
|
TotalCoeff_1 <= 14;
|
end
|
end
|
else if (rbsp_1[13:15] == 3'b101) begin
|
else if (rbsp_1[13:15] == 3'b101) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 14;
|
TotalCoeff_1 <= 14;
|
end
|
end
|
else if (rbsp_1[13:15] == 3'b010) begin
|
else if (rbsp_1[13:15] == 3'b010) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 15;
|
TotalCoeff_1 <= 15;
|
end
|
end
|
else if (rbsp_1[13:15] == 3'b001) begin
|
else if (rbsp_1[13:15] == 3'b001) begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 15;
|
TotalCoeff_1 <= 15;
|
end
|
end
|
else if (rbsp_1[13:15] == 3'b100) begin
|
else if (rbsp_1[13:15] == 3'b100) begin
|
TrailingOnes_1 <= 3;
|
TrailingOnes_1 <= 3;
|
TotalCoeff_1 <= 15;
|
TotalCoeff_1 <= 15;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_1 <= 3;
|
TrailingOnes_1 <= 3;
|
TotalCoeff_1 <= 16;
|
TotalCoeff_1 <= 16;
|
end
|
end
|
end
|
end
|
rbsp_1[13] : begin
|
rbsp_1[13] : begin
|
len_1 <= 16;
|
len_1 <= 16;
|
if (rbsp_1[14:15] == 2'b11) begin
|
if (rbsp_1[14:15] == 2'b11) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 15;
|
TotalCoeff_1 <= 15;
|
end
|
end
|
else if (rbsp_1[14:15] == 2'b00) begin
|
else if (rbsp_1[14:15] == 2'b00) begin
|
TrailingOnes_1 <= 0;
|
TrailingOnes_1 <= 0;
|
TotalCoeff_1 <= 16;
|
TotalCoeff_1 <= 16;
|
end
|
end
|
else if (rbsp_1[14:15] == 2'b10) begin
|
else if (rbsp_1[14:15] == 2'b10) begin
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 16;
|
TotalCoeff_1 <= 16;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_1 <= 2;
|
TrailingOnes_1 <= 2;
|
TotalCoeff_1 <= 16;
|
TotalCoeff_1 <= 16;
|
end
|
end
|
end
|
end
|
default : begin
|
default : begin
|
len_1 <= 15;
|
len_1 <= 15;
|
TrailingOnes_1 <= 1;
|
TrailingOnes_1 <= 1;
|
TotalCoeff_1 <= 13;
|
TotalCoeff_1 <= 13;
|
end
|
end
|
endcase
|
endcase
|
|
|
//------------------------
|
//------------------------
|
//nC >= 2 && nC < 4
|
//nC >= 2 && nC < 4
|
//------------------------
|
//------------------------
|
always @(rbsp_2)
|
always @(rbsp_2)
|
case (1'b1)
|
case (1'b1)
|
rbsp_2[0] : begin
|
rbsp_2[0] : begin
|
len_2 <= 2;
|
len_2 <= 2;
|
if (rbsp_2[1] == 'b1) begin
|
if (rbsp_2[1] == 'b1) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 0;
|
TotalCoeff_2 <= 0;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 1;
|
TotalCoeff_2 <= 1;
|
end
|
end
|
end
|
end
|
rbsp_2[1] : begin
|
rbsp_2[1] : begin
|
if (rbsp_2[2] == 'b1) begin
|
if (rbsp_2[2] == 'b1) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 2;
|
TotalCoeff_2 <= 2;
|
len_2 <= 3;
|
len_2 <= 3;
|
end
|
end
|
else if (rbsp_2[3] == 'b1) begin
|
else if (rbsp_2[3] == 'b1) begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 3;
|
TotalCoeff_2 <= 3;
|
len_2 <= 4;
|
len_2 <= 4;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 4;
|
TotalCoeff_2 <= 4;
|
len_2 <= 4;
|
len_2 <= 4;
|
end
|
end
|
end
|
end
|
rbsp_2[2] : begin
|
rbsp_2[2] : begin
|
if (rbsp_2[3:4] == 'b11) begin
|
if (rbsp_2[3:4] == 'b11) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 2;
|
TotalCoeff_2 <= 2;
|
len_2 <= 5;
|
len_2 <= 5;
|
end
|
end
|
else if (rbsp_2[3:4] == 'b10) begin
|
else if (rbsp_2[3:4] == 'b10) begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 5;
|
TotalCoeff_2 <= 5;
|
len_2 <= 5;
|
len_2 <= 5;
|
end
|
end
|
else if (rbsp_2[4:5] == 'b11) begin
|
else if (rbsp_2[4:5] == 'b11) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 1;
|
TotalCoeff_2 <= 1;
|
len_2 <= 6;
|
len_2 <= 6;
|
end
|
end
|
else if (rbsp_2[4:5] == 'b10) begin
|
else if (rbsp_2[4:5] == 'b10) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 3;
|
TotalCoeff_2 <= 3;
|
len_2 <= 6;
|
len_2 <= 6;
|
end
|
end
|
else if (rbsp_2[4:5] == 'b01) begin
|
else if (rbsp_2[4:5] == 'b01) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 3;
|
TotalCoeff_2 <= 3;
|
len_2 <= 6;
|
len_2 <= 6;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 6;
|
TotalCoeff_2 <= 6;
|
len_2 <= 6;
|
len_2 <= 6;
|
end
|
end
|
end
|
end
|
rbsp_2[3] : begin
|
rbsp_2[3] : begin
|
len_2 <= 6;
|
len_2 <= 6;
|
if (rbsp_2[4:5] == 'b11) begin
|
if (rbsp_2[4:5] == 'b11) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 2;
|
TotalCoeff_2 <= 2;
|
end
|
end
|
else if (rbsp_2[4:5] == 'b10) begin
|
else if (rbsp_2[4:5] == 'b10) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 4;
|
TotalCoeff_2 <= 4;
|
end
|
end
|
else if (rbsp_2[4:5] == 'b01) begin
|
else if (rbsp_2[4:5] == 'b01) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 4;
|
TotalCoeff_2 <= 4;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 7;
|
TotalCoeff_2 <= 7;
|
end
|
end
|
end
|
end
|
rbsp_2[4] : begin
|
rbsp_2[4] : begin
|
len_2 <= 7;
|
len_2 <= 7;
|
if (rbsp_2[5:6] == 'b11) begin
|
if (rbsp_2[5:6] == 'b11) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 3;
|
TotalCoeff_2 <= 3;
|
end
|
end
|
else if (rbsp_2[5:6] == 'b10) begin
|
else if (rbsp_2[5:6] == 'b10) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 5;
|
TotalCoeff_2 <= 5;
|
end
|
end
|
else if (rbsp_2[5:6] == 'b01) begin
|
else if (rbsp_2[5:6] == 'b01) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 5;
|
TotalCoeff_2 <= 5;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 8;
|
TotalCoeff_2 <= 8;
|
end
|
end
|
end
|
end
|
rbsp_2[5] : begin
|
rbsp_2[5] : begin
|
len_2 <= 8;
|
len_2 <= 8;
|
if (rbsp_2[6:7] == 'b11) begin
|
if (rbsp_2[6:7] == 'b11) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 4;
|
TotalCoeff_2 <= 4;
|
end
|
end
|
else if (rbsp_2[6:7] == 'b00) begin
|
else if (rbsp_2[6:7] == 'b00) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 5;
|
TotalCoeff_2 <= 5;
|
end
|
end
|
else if (rbsp_2[6:7] == 'b10) begin
|
else if (rbsp_2[6:7] == 'b10) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 6;
|
TotalCoeff_2 <= 6;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 6;
|
TotalCoeff_2 <= 6;
|
end
|
end
|
end
|
end
|
rbsp_2[6] : begin
|
rbsp_2[6] : begin
|
len_2 <= 9;
|
len_2 <= 9;
|
if (rbsp_2[7:8] == 'b11) begin
|
if (rbsp_2[7:8] == 'b11) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 6;
|
TotalCoeff_2 <= 6;
|
end
|
end
|
else if (rbsp_2[7:8] == 'b10) begin
|
else if (rbsp_2[7:8] == 'b10) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 7;
|
TotalCoeff_2 <= 7;
|
end
|
end
|
else if (rbsp_2[7:8] == 'b01) begin
|
else if (rbsp_2[7:8] == 'b01) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 7;
|
TotalCoeff_2 <= 7;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 9;
|
TotalCoeff_2 <= 9;
|
end
|
end
|
end
|
end
|
rbsp_2[7] : begin
|
rbsp_2[7] : begin
|
len_2 <= 11;
|
len_2 <= 11;
|
if (rbsp_2[8:10] == 'b111) begin
|
if (rbsp_2[8:10] == 'b111) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 7;
|
TotalCoeff_2 <= 7;
|
end
|
end
|
else if (rbsp_2[8:10] == 'b011) begin
|
else if (rbsp_2[8:10] == 'b011) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 8;
|
TotalCoeff_2 <= 8;
|
end
|
end
|
else if (rbsp_2[8:10] == 'b110) begin
|
else if (rbsp_2[8:10] == 'b110) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 8;
|
TotalCoeff_2 <= 8;
|
end
|
end
|
else if (rbsp_2[8:10] == 'b101) begin
|
else if (rbsp_2[8:10] == 'b101) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 8;
|
TotalCoeff_2 <= 8;
|
end
|
end
|
else if (rbsp_2[8:10] == 'b010) begin
|
else if (rbsp_2[8:10] == 'b010) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 9;
|
TotalCoeff_2 <= 9;
|
end
|
end
|
else if (rbsp_2[8:10] == 'b001) begin
|
else if (rbsp_2[8:10] == 'b001) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 9;
|
TotalCoeff_2 <= 9;
|
end
|
end
|
else if (rbsp_2[8:10] == 'b100) begin
|
else if (rbsp_2[8:10] == 'b100) begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 10;
|
TotalCoeff_2 <= 10;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 11;
|
TotalCoeff_2 <= 11;
|
end
|
end
|
end
|
end
|
rbsp_2[8] : begin
|
rbsp_2[8] : begin
|
len_2 <= 12;
|
len_2 <= 12;
|
if (rbsp_2[9:11] == 'b111) begin
|
if (rbsp_2[9:11] == 'b111) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 9;
|
TotalCoeff_2 <= 9;
|
end
|
end
|
else if (rbsp_2[9:11] == 'b011) begin
|
else if (rbsp_2[9:11] == 'b011) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 10;
|
TotalCoeff_2 <= 10;
|
end
|
end
|
else if (rbsp_2[9:11] == 'b110) begin
|
else if (rbsp_2[9:11] == 'b110) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 10;
|
TotalCoeff_2 <= 10;
|
end
|
end
|
else if (rbsp_2[9:11] == 'b101) begin
|
else if (rbsp_2[9:11] == 'b101) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 10;
|
TotalCoeff_2 <= 10;
|
end
|
end
|
else if (rbsp_2[9:11] == 'b000) begin
|
else if (rbsp_2[9:11] == 'b000) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 11;
|
TotalCoeff_2 <= 11;
|
end
|
end
|
else if (rbsp_2[9:11] == 'b010) begin
|
else if (rbsp_2[9:11] == 'b010) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 11;
|
TotalCoeff_2 <= 11;
|
end
|
end
|
else if (rbsp_2[9:11] == 'b001) begin
|
else if (rbsp_2[9:11] == 'b001) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 11;
|
TotalCoeff_2 <= 11;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 12;
|
TotalCoeff_2 <= 12;
|
end
|
end
|
end
|
end
|
rbsp_2[9] : begin
|
rbsp_2[9] : begin
|
len_2 <= 13;
|
len_2 <= 13;
|
if (rbsp_2[10:12] == 'b111) begin
|
if (rbsp_2[10:12] == 'b111) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 12;
|
TotalCoeff_2 <= 12;
|
end
|
end
|
else if (rbsp_2[10:12] == 'b110) begin
|
else if (rbsp_2[10:12] == 'b110) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 12;
|
TotalCoeff_2 <= 12;
|
end
|
end
|
else if (rbsp_2[10:12] == 'b101) begin
|
else if (rbsp_2[10:12] == 'b101) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 12;
|
TotalCoeff_2 <= 12;
|
end
|
end
|
else if (rbsp_2[10:12] == 'b011) begin
|
else if (rbsp_2[10:12] == 'b011) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 13;
|
TotalCoeff_2 <= 13;
|
end
|
end
|
else if (rbsp_2[10:12] == 'b010) begin
|
else if (rbsp_2[10:12] == 'b010) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 13;
|
TotalCoeff_2 <= 13;
|
end
|
end
|
else if (rbsp_2[10:12] == 'b001) begin
|
else if (rbsp_2[10:12] == 'b001) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 13;
|
TotalCoeff_2 <= 13;
|
end
|
end
|
else if (rbsp_2[10:12] == 'b100) begin
|
else if (rbsp_2[10:12] == 'b100) begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 13;
|
TotalCoeff_2 <= 13;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 14;
|
TotalCoeff_2 <= 14;
|
end
|
end
|
end
|
end
|
rbsp_2[10] : begin
|
rbsp_2[10] : begin
|
if (rbsp_2[11:12] == 'b11) begin
|
if (rbsp_2[11:12] == 'b11) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 14;
|
TotalCoeff_2 <= 14;
|
len_2 <= 13;
|
len_2 <= 13;
|
end
|
end
|
else if (rbsp_2[11:12] == 'b10) begin
|
else if (rbsp_2[11:12] == 'b10) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 14;
|
TotalCoeff_2 <= 14;
|
len_2 <= 13;
|
len_2 <= 13;
|
end
|
end
|
else if (rbsp_2[12:13] == 'b11) begin
|
else if (rbsp_2[12:13] == 'b11) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 14;
|
TotalCoeff_2 <= 14;
|
len_2 <= 14;
|
len_2 <= 14;
|
end
|
end
|
else if (rbsp_2[12:13] == 'b01) begin
|
else if (rbsp_2[12:13] == 'b01) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 15;
|
TotalCoeff_2 <= 15;
|
len_2 <= 14;
|
len_2 <= 14;
|
end
|
end
|
else if (rbsp_2[12:13] == 'b00) begin
|
else if (rbsp_2[12:13] == 'b00) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 15;
|
TotalCoeff_2 <= 15;
|
len_2 <= 14;
|
len_2 <= 14;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 15;
|
TotalCoeff_2 <= 15;
|
len_2 <= 14;
|
len_2 <= 14;
|
end
|
end
|
end
|
end
|
rbsp_2[11] : begin
|
rbsp_2[11] : begin
|
len_2 <= 14;
|
len_2 <= 14;
|
if (rbsp_2[12:13] == 'b11) begin
|
if (rbsp_2[12:13] == 'b11) begin
|
TrailingOnes_2 <= 0;
|
TrailingOnes_2 <= 0;
|
TotalCoeff_2 <= 16;
|
TotalCoeff_2 <= 16;
|
end
|
end
|
else if (rbsp_2[12:13] == 'b10) begin
|
else if (rbsp_2[12:13] == 'b10) begin
|
TrailingOnes_2 <= 1;
|
TrailingOnes_2 <= 1;
|
TotalCoeff_2 <= 16;
|
TotalCoeff_2 <= 16;
|
end
|
end
|
else if (rbsp_2[12:13] == 'b01) begin
|
else if (rbsp_2[12:13] == 'b01) begin
|
TrailingOnes_2 <= 2;
|
TrailingOnes_2 <= 2;
|
TotalCoeff_2 <= 16;
|
TotalCoeff_2 <= 16;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 16;
|
TotalCoeff_2 <= 16;
|
end
|
end
|
end
|
end
|
default : begin
|
default : begin
|
TrailingOnes_2 <= 3;
|
TrailingOnes_2 <= 3;
|
TotalCoeff_2 <= 15;
|
TotalCoeff_2 <= 15;
|
len_2 <= 13;
|
len_2 <= 13;
|
end
|
end
|
endcase
|
endcase
|
|
|
//------------------------
|
//------------------------
|
// nC >= 4 && nC < 8
|
// nC >= 4 && nC < 8
|
//------------------------
|
//------------------------
|
always @(rbsp_3)
|
always @(rbsp_3)
|
case (1'b1)
|
case (1'b1)
|
rbsp_3[0] : begin
|
rbsp_3[0] : begin
|
len_3 <= 4;
|
len_3 <= 4;
|
case (rbsp_3[1:3])
|
case (rbsp_3[1:3])
|
'b111 : begin
|
'b111 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 0;
|
TotalCoeff_3 <= 0;
|
end
|
end
|
'b110 : begin
|
'b110 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 1;
|
TotalCoeff_3 <= 1;
|
end
|
end
|
'b101 : begin
|
'b101 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 2;
|
TotalCoeff_3 <= 2;
|
end
|
end
|
'b100 : begin
|
'b100 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 3;
|
TotalCoeff_3 <= 3;
|
end
|
end
|
'b011 : begin
|
'b011 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 4;
|
TotalCoeff_3 <= 4;
|
end
|
end
|
'b010 : begin
|
'b010 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 5;
|
TotalCoeff_3 <= 5;
|
end
|
end
|
'b001 : begin
|
'b001 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 6;
|
TotalCoeff_3 <= 6;
|
end
|
end
|
'b000 : begin
|
'b000 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 7;
|
TotalCoeff_3 <= 7;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
rbsp_3[1] : begin
|
rbsp_3[1] : begin
|
len_3 <= 5;
|
len_3 <= 5;
|
case (rbsp_3[2:4])
|
case (rbsp_3[2:4])
|
'b111 : begin
|
'b111 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 2;
|
TotalCoeff_3 <= 2;
|
end
|
end
|
'b100 : begin
|
'b100 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 3;
|
TotalCoeff_3 <= 3;
|
end
|
end
|
'b110 : begin
|
'b110 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 3;
|
TotalCoeff_3 <= 3;
|
end
|
end
|
'b010 : begin
|
'b010 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 4;
|
TotalCoeff_3 <= 4;
|
end
|
end
|
'b011 : begin
|
'b011 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 4;
|
TotalCoeff_3 <= 4;
|
end
|
end
|
'b000 : begin
|
'b000 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 5;
|
TotalCoeff_3 <= 5;
|
end
|
end
|
'b001 : begin
|
'b001 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 5;
|
TotalCoeff_3 <= 5;
|
end
|
end
|
'b101 : begin
|
'b101 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 8;
|
TotalCoeff_3 <= 8;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
rbsp_3[2] : begin
|
rbsp_3[2] : begin
|
len_3 <= 6;
|
len_3 <= 6;
|
case (rbsp_3[3:5])
|
case (rbsp_3[3:5])
|
3'b111 : begin
|
3'b111 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 1;
|
TotalCoeff_3 <= 1;
|
end
|
end
|
3'b011 : begin
|
3'b011 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 2;
|
TotalCoeff_3 <= 2;
|
end
|
end
|
3'b000 : begin
|
3'b000 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 3;
|
TotalCoeff_3 <= 3;
|
end
|
end
|
3'b110 : begin
|
3'b110 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 6;
|
TotalCoeff_3 <= 6;
|
end
|
end
|
3'b101 : begin
|
3'b101 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 6;
|
TotalCoeff_3 <= 6;
|
end
|
end
|
3'b010 : begin
|
3'b010 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 7;
|
TotalCoeff_3 <= 7;
|
end
|
end
|
3'b001 : begin
|
3'b001 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 7;
|
TotalCoeff_3 <= 7;
|
end
|
end
|
3'b100 : begin
|
3'b100 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 9;
|
TotalCoeff_3 <= 9;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
rbsp_3[3] : begin
|
rbsp_3[3] : begin
|
len_3 <= 7;
|
len_3 <= 7;
|
case (rbsp_3[4:6])
|
case (rbsp_3[4:6])
|
'b111 : begin
|
'b111 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 4;
|
TotalCoeff_3 <= 4;
|
end
|
end
|
'b011 : begin
|
'b011 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 5;
|
TotalCoeff_3 <= 5;
|
end
|
end
|
'b001 : begin
|
'b001 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 6;
|
TotalCoeff_3 <= 6;
|
end
|
end
|
'b000 : begin
|
'b000 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 7;
|
TotalCoeff_3 <= 7;
|
end
|
end
|
'b110 : begin
|
'b110 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 8;
|
TotalCoeff_3 <= 8;
|
end
|
end
|
'b101 : begin
|
'b101 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 8;
|
TotalCoeff_3 <= 8;
|
end
|
end
|
|
|
'b010 : begin
|
'b010 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 9;
|
TotalCoeff_3 <= 9;
|
end
|
end
|
'b100 : begin
|
'b100 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 10;
|
TotalCoeff_3 <= 10;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
rbsp_3[4] : begin
|
rbsp_3[4] : begin
|
len_3 <= 8;
|
len_3 <= 8;
|
case (rbsp_3[5:7])
|
case (rbsp_3[5:7])
|
'b111 : begin
|
'b111 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 8;
|
TotalCoeff_3 <= 8;
|
end
|
end
|
'b011 : begin
|
'b011 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 9;
|
TotalCoeff_3 <= 9;
|
end
|
end
|
'b110 : begin
|
'b110 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 9;
|
TotalCoeff_3 <= 9;
|
end
|
end
|
'b010 : begin
|
'b010 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 10;
|
TotalCoeff_3 <= 10;
|
end
|
end
|
'b101 : begin
|
'b101 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 10;
|
TotalCoeff_3 <= 10;
|
end
|
end
|
'b001 : begin
|
'b001 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 11;
|
TotalCoeff_3 <= 11;
|
end
|
end
|
'b100 : begin
|
'b100 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 11;
|
TotalCoeff_3 <= 11;
|
end
|
end
|
'b000 : begin
|
'b000 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 12;
|
TotalCoeff_3 <= 12;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
rbsp_3[5] : begin
|
rbsp_3[5] : begin
|
len_3 <= 9;
|
len_3 <= 9;
|
case (rbsp_3[6:8])
|
case (rbsp_3[6:8])
|
'b111 : begin
|
'b111 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 10;
|
TotalCoeff_3 <= 10;
|
end
|
end
|
'b011 : begin
|
'b011 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 11;
|
TotalCoeff_3 <= 11;
|
end
|
end
|
'b110 : begin
|
'b110 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 11;
|
TotalCoeff_3 <= 11;
|
end
|
end
|
'b000 : begin
|
'b000 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 12;
|
TotalCoeff_3 <= 12;
|
end
|
end
|
'b010 : begin
|
'b010 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 12;
|
TotalCoeff_3 <= 12;
|
end
|
end
|
'b101 : begin
|
'b101 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 12;
|
TotalCoeff_3 <= 12;
|
end
|
end
|
'b001 : begin
|
'b001 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 13;
|
TotalCoeff_3 <= 13;
|
end
|
end
|
'b100 : begin
|
'b100 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 13;
|
TotalCoeff_3 <= 13;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
rbsp_3[6] : begin
|
rbsp_3[6] : begin
|
if (rbsp_3[7:8] == 'b11)begin
|
if (rbsp_3[7:8] == 'b11)begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 13;
|
TotalCoeff_3 <= 13;
|
len_3 <= 9;
|
len_3 <= 9;
|
end
|
end
|
else if (rbsp_3[7:9] == 'b101)begin
|
else if (rbsp_3[7:9] == 'b101)begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 13;
|
TotalCoeff_3 <= 13;
|
len_3 <= 10;
|
len_3 <= 10;
|
end
|
end
|
else if (rbsp_3[7:9] == 'b001)begin
|
else if (rbsp_3[7:9] == 'b001)begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 14;
|
TotalCoeff_3 <= 14;
|
len_3 <= 10;
|
len_3 <= 10;
|
end
|
end
|
else if (rbsp_3[7:9] == 'b100)begin
|
else if (rbsp_3[7:9] == 'b100)begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 14;
|
TotalCoeff_3 <= 14;
|
len_3 <= 10;
|
len_3 <= 10;
|
end
|
end
|
else if (rbsp_3[7:9] == 'b011)begin
|
else if (rbsp_3[7:9] == 'b011)begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 14;
|
TotalCoeff_3 <= 14;
|
len_3 <= 10;
|
len_3 <= 10;
|
end
|
end
|
else if (rbsp_3[7:9] == 'b010)begin
|
else if (rbsp_3[7:9] == 'b010)begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 14;
|
TotalCoeff_3 <= 14;
|
len_3 <= 10;
|
len_3 <= 10;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 15;
|
TotalCoeff_3 <= 15;
|
len_3 <= 10;
|
len_3 <= 10;
|
end
|
end
|
end
|
end
|
rbsp_3[7] : begin
|
rbsp_3[7] : begin
|
len_3 <= 10;
|
len_3 <= 10;
|
case (rbsp_3[8:9])
|
case (rbsp_3[8:9])
|
'b01 : begin
|
'b01 : begin
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 15;
|
TotalCoeff_3 <= 15;
|
end
|
end
|
'b11 : begin
|
'b11 : begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 15;
|
TotalCoeff_3 <= 15;
|
end
|
end
|
'b10 : begin
|
'b10 : begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 15;
|
TotalCoeff_3 <= 15;
|
end
|
end
|
'b00 : begin
|
'b00 : begin
|
TrailingOnes_3 <= 1;
|
TrailingOnes_3 <= 1;
|
TotalCoeff_3 <= 16;
|
TotalCoeff_3 <= 16;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
rbsp_3[8] : begin
|
rbsp_3[8] : begin
|
len_3 <= 10;
|
len_3 <= 10;
|
if (rbsp_3[9] == 'b1)begin
|
if (rbsp_3[9] == 'b1)begin
|
TrailingOnes_3 <= 2;
|
TrailingOnes_3 <= 2;
|
TotalCoeff_3 <= 16;
|
TotalCoeff_3 <= 16;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_3 <= 3;
|
TrailingOnes_3 <= 3;
|
TotalCoeff_3 <= 16;
|
TotalCoeff_3 <= 16;
|
end
|
end
|
end
|
end
|
default : begin
|
default : begin
|
len_3 <= 10;
|
len_3 <= 10;
|
TrailingOnes_3 <= 0;
|
TrailingOnes_3 <= 0;
|
TotalCoeff_3 <= 16;
|
TotalCoeff_3 <= 16;
|
end
|
end
|
endcase
|
endcase
|
|
|
//------------------ Colum 4 : nC >= 8---------------------
|
//------------------------
|
|
// nC > 8
|
|
//------------------------
|
always @(rbsp_4)
|
always @(rbsp_4)
|
begin
|
begin
|
len_4 <= 6;
|
len_4 <= 6;
|
if (rbsp_4[0:4] == 5'b00001) begin
|
if (rbsp_4[0:4] == 5'b00001) begin
|
TrailingOnes_4 <= 0;
|
TrailingOnes_4 <= 0;
|
TotalCoeff_4 <= 0;
|
TotalCoeff_4 <= 0;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_4 <= rbsp_4[4:5];
|
TrailingOnes_4 <= rbsp_4[4:5];
|
TotalCoeff_4 <= rbsp_4[0:3] + 1'b1;
|
TotalCoeff_4 <= rbsp_4[0:3] + 1'b1;
|
end
|
end
|
end
|
end
|
|
|
//------------------------
|
//------------------------
|
// nC == -1
|
// nC == -1
|
//------------------------
|
//------------------------
|
always @(rbsp_5)
|
always @(rbsp_5)
|
case (1'b1)
|
case (1'b1)
|
rbsp_5[0] : begin
|
rbsp_5[0] : begin
|
TrailingOnes_5 <= 1;
|
TrailingOnes_5 <= 1;
|
TotalCoeff_5 <= 1;
|
TotalCoeff_5 <= 1;
|
len_5 <= 1;
|
len_5 <= 1;
|
end
|
end
|
rbsp_5[1] : begin
|
rbsp_5[1] : begin
|
TrailingOnes_5 <= 0;
|
TrailingOnes_5 <= 0;
|
TotalCoeff_5 <= 0;
|
TotalCoeff_5 <= 0;
|
len_5 <= 2;
|
len_5 <= 2;
|
end
|
end
|
rbsp_5[2] : begin
|
rbsp_5[2] : begin
|
TrailingOnes_5 <= 2;
|
TrailingOnes_5 <= 2;
|
TotalCoeff_5 <= 2;
|
TotalCoeff_5 <= 2;
|
len_5 <= 3;
|
len_5 <= 3;
|
end
|
end
|
rbsp_5[3] : begin
|
rbsp_5[3] : begin
|
len_5 <= 6;
|
len_5 <= 6;
|
if (rbsp_5[4:5] == 'b11) begin
|
if (rbsp_5[4:5] == 'b11) begin
|
TrailingOnes_5 <= 0;
|
TrailingOnes_5 <= 0;
|
TotalCoeff_5 <= 1;
|
TotalCoeff_5 <= 1;
|
end
|
end
|
else if (rbsp_5[4:5] == 'b00) begin
|
else if (rbsp_5[4:5] == 'b00) begin
|
TrailingOnes_5 <= 0;
|
TrailingOnes_5 <= 0;
|
TotalCoeff_5 <= 2;
|
TotalCoeff_5 <= 2;
|
end
|
end
|
else if (rbsp_5[4:5] == 'b10) begin
|
else if (rbsp_5[4:5] == 'b10) begin
|
TrailingOnes_5 <= 1;
|
TrailingOnes_5 <= 1;
|
TotalCoeff_5 <= 2;
|
TotalCoeff_5 <= 2;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_5 <= 3;
|
TrailingOnes_5 <= 3;
|
TotalCoeff_5 <= 3;
|
TotalCoeff_5 <= 3;
|
end
|
end
|
end
|
end
|
rbsp_5[4] : begin
|
rbsp_5[4] : begin
|
len_5 <= 6;
|
len_5 <= 6;
|
if (rbsp_5[5] == 'b1) begin
|
if (rbsp_5[5] == 'b1) begin
|
TrailingOnes_5 <= 0;
|
TrailingOnes_5 <= 0;
|
TotalCoeff_5 <= 3;
|
TotalCoeff_5 <= 3;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_5 <= 0;
|
TrailingOnes_5 <= 0;
|
TotalCoeff_5 <= 4;
|
TotalCoeff_5 <= 4;
|
end
|
end
|
end
|
end
|
rbsp_5[5] : begin
|
rbsp_5[5] : begin
|
len_5 <= 7;
|
len_5 <= 7;
|
if (rbsp_5[6] == 'b1) begin
|
if (rbsp_5[6] == 'b1) begin
|
TrailingOnes_5 <= 1;
|
TrailingOnes_5 <= 1;
|
TotalCoeff_5 <= 3;
|
TotalCoeff_5 <= 3;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_5 <= 2;
|
TrailingOnes_5 <= 2;
|
TotalCoeff_5 <= 3;
|
TotalCoeff_5 <= 3;
|
end
|
end
|
end
|
end
|
rbsp_5[6] : begin
|
rbsp_5[6] : begin
|
len_5 <= 8;
|
len_5 <= 8;
|
if (rbsp_5[7] == 'b1) begin
|
if (rbsp_5[7] == 'b1) begin
|
TrailingOnes_5 <= 1;
|
TrailingOnes_5 <= 1;
|
TotalCoeff_5 <= 4;
|
TotalCoeff_5 <= 4;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_5 <= 2;
|
TrailingOnes_5 <= 2;
|
TotalCoeff_5 <= 4;
|
TotalCoeff_5 <= 4;
|
end
|
end
|
end
|
end
|
default : begin
|
default : begin
|
len_5 <= 7;
|
len_5 <= 7;
|
TrailingOnes_5 <= 3;
|
TrailingOnes_5 <= 3;
|
TotalCoeff_5 <= 4;
|
TotalCoeff_5 <= 4;
|
end
|
end
|
endcase
|
endcase
|
|
|
//------------------------
|
//------------------------
|
//output mux
|
//output mux
|
//------------------------
|
//------------------------
|
//startect a colum according to nC
|
//startect a colum according to nC
|
always @(*)
|
always @(*)
|
begin
|
begin
|
if (nC == -1) begin
|
if (nC == -1) begin
|
TrailingOnes_comb <= TrailingOnes_5;
|
TrailingOnes_comb <= TrailingOnes_5;
|
TotalCoeff_comb <= TotalCoeff_5;
|
TotalCoeff_comb <= TotalCoeff_5;
|
len_comb <= len_5;
|
len_comb <= len_5;
|
end
|
end
|
else if (nC[3]) begin
|
else if (nC[4] | nC[3]) begin
|
TrailingOnes_comb <= TrailingOnes_4;
|
TrailingOnes_comb <= TrailingOnes_4;
|
TotalCoeff_comb <= TotalCoeff_4;
|
TotalCoeff_comb <= TotalCoeff_4;
|
len_comb <= len_4;
|
len_comb <= len_4;
|
end
|
end
|
else if (nC[2]) begin
|
else if (nC[2]) begin
|
TrailingOnes_comb <= TrailingOnes_3;
|
TrailingOnes_comb <= TrailingOnes_3;
|
TotalCoeff_comb <= TotalCoeff_3;
|
TotalCoeff_comb <= TotalCoeff_3;
|
len_comb <= len_3;
|
len_comb <= len_3;
|
end
|
end
|
else if (nC[1]) begin
|
else if (nC[1]) begin
|
TrailingOnes_comb <= TrailingOnes_2;
|
TrailingOnes_comb <= TrailingOnes_2;
|
TotalCoeff_comb <= TotalCoeff_2;
|
TotalCoeff_comb <= TotalCoeff_2;
|
len_comb <= len_2;
|
len_comb <= len_2;
|
end
|
end
|
else begin
|
else begin
|
TrailingOnes_comb <= TrailingOnes_1;
|
TrailingOnes_comb <= TrailingOnes_1;
|
TotalCoeff_comb <= TotalCoeff_1;
|
TotalCoeff_comb <= TotalCoeff_1;
|
len_comb <= len_1;
|
len_comb <= len_1;
|
end
|
end
|
end
|
end
|
|
|
//------------------------
|
//------------------------
|
//TrailingOnes & TotalCoeff
|
//TrailingOnes & TotalCoeff
|
//------------------------
|
//------------------------
|
wire output_refresh = ena && sel;
|
|
|
|
always @(posedge clk or negedge rst_n)
|
always @(posedge clk or negedge rst_n)
|
if (~rst_n) begin
|
if (!rst_n) begin
|
TrailingOnes <= 0;
|
TrailingOnes <= 0;
|
TotalCoeff <= 0;
|
TotalCoeff <= 0;
|
end
|
end
|
else if (output_refresh) begin
|
else if (ena && sel) begin
|
TrailingOnes <= TrailingOnes_comb;
|
TrailingOnes <= TrailingOnes_comb;
|
TotalCoeff <= TotalCoeff_comb;
|
TotalCoeff <= TotalCoeff_comb;
|
end
|
end
|
|
|
endmodule
|
endmodule
|
|
|
|
|
