Subversion Repositories nova

//--------------------------------------------------------------------------------------------------

// Design    : nova

// Author(s) : Ke Xu

// Email           : eexuke@yahoo.com

// File      : cavlc_decoder.v

// Generated : June 12,2005

// Copyright (C) 2008 Ke Xu                

//-------------------------------------------------------------------------------------------------

// Description 

// cavlc_decoder top module

//-------------------------------------------------------------------------------------------------

// synopsys translate_off

`include "timescale.v"

// synopsys translate_on

`include "nova_defines.v"

module cavlc_decoder (clk,reset_n,gclk_end_of_MB_DEC,

        gclk_LumaLevel_mbAddrB_RF,gclk_ChromaLevel_Cb_mbAddrB_RF,gclk_ChromaLevel_Cr_mbAddrB_RF,

        slice_data_state,residual_state,cavlc_decoder_state,mb_num_h,mb_num_v,i8x8,i4x4,i4x4_CbCr,

        i_level,i_run,i_TotalCoeff,coeffNum,

        heading_one_pos,BitStream_buffer_output,

        CodedBlockPatternLuma,CodedBlockPatternChroma,suffix_length_initialized,IsRunLoop,

        Luma_8x8_AllZeroCoeff_mbAddrA,LumaLevel_mbAddrA,LumaLevel_CurrMb0,LumaLevel_CurrMb1,LumaLevel_CurrMb2,LumaLevel_CurrMb3,

        LumaLevel_mbAddrB_dout,LumaLevel_mbAddrB_cs_n,ChromaLevel_Cb_mbAddrB_cs_n,ChromaLevel_Cr_mbAddrB_cs_n,

        end_of_one_residual_block,end_of_NonZeroCoeff_CAVLC,

        cavlc_consumed_bits_len,TotalCoeff,TrailingOnes,maxNumCoeff,zerosLeft,run,

        coeffLevel_0,coeffLevel_1,coeffLevel_2, coeffLevel_3, coeffLevel_4, coeffLevel_5, coeffLevel_6, coeffLevel_7,

        coeffLevel_8,coeffLevel_9,coeffLevel_10,coeffLevel_11,coeffLevel_12,coeffLevel_13,coeffLevel_14,coeffLevel_15);

        input clk,reset_n;

        input gclk_end_of_MB_DEC;

        input gclk_LumaLevel_mbAddrB_RF;

        input gclk_ChromaLevel_Cb_mbAddrB_RF;

        input gclk_ChromaLevel_Cr_mbAddrB_RF;

        input [3:0] slice_data_state;

        input [3:0] residual_state;

        input [3:0] cavlc_decoder_state;

        input [3:0]      mb_num_h;

        input [3:0] mb_num_v;

        input [1:0] i8x8;

        input [1:0] i4x4;

        input [1:0] i4x4_CbCr;

        input [3:0] i_level;

        input [3:0] i_run;

        input [3:0] i_TotalCoeff;

        input [3:0] coeffNum;

        input [3:0] heading_one_pos;

        input [15:0] BitStream_buffer_output;

        input [3:0] CodedBlockPatternLuma;

        input [1:0] CodedBlockPatternChroma;

        input suffix_length_initialized;

        input IsRunLoop;

        output [1:0] Luma_8x8_AllZeroCoeff_mbAddrA;

        output [19:0] LumaLevel_mbAddrA;

        output [19:0] LumaLevel_CurrMb0,LumaLevel_CurrMb1,LumaLevel_CurrMb2,LumaLevel_CurrMb3;

        output [19:0] LumaLevel_mbAddrB_dout;

        output LumaLevel_mbAddrB_cs_n;

        output ChromaLevel_Cb_mbAddrB_cs_n;

        output ChromaLevel_Cr_mbAddrB_cs_n;

        output end_of_one_residual_block;

        output end_of_NonZeroCoeff_CAVLC;

        output [4:0] cavlc_consumed_bits_len;

        output [4:0] TotalCoeff;

        output [1:0] TrailingOnes;

        output [4:0] maxNumCoeff;

        output [3:0] zerosLeft;

        output [3:0] run;

        output [8:0] coeffLevel_0, coeffLevel_1, coeffLevel_2,coeffLevel_3, coeffLevel_4, coeffLevel_5, coeffLevel_6;

        output [8:0] coeffLevel_7, coeffLevel_8, coeffLevel_9,coeffLevel_10,coeffLevel_11,coeffLevel_12,coeffLevel_13;

        output [8:0] coeffLevel_14,coeffLevel_15;

        wire LumaLevel_mbAddrB_cs_n,LumaLevel_mbAddrB_wr_n;

        wire [3:0] LumaLevel_mbAddrB_rd_addr,LumaLevel_mbAddrB_wr_addr;

        wire [19:0] LumaLevel_mbAddrB_din;

        wire [19:0] LumaLevel_mbAddrB_dout;

        wire ChromaLevel_Cb_mbAddrB_cs_n,ChromaLevel_Cb_mbAddrB_wr_n;

        wire [3:0] ChromaLevel_Cb_mbAddrB_rd_addr,ChromaLevel_Cb_mbAddrB_wr_addr;

        wire [9:0] ChromaLevel_Cb_mbAddrB_din;

        wire [9:0] ChromaLevel_Cb_mbAddrB_dout;

        wire ChromaLevel_Cr_mbAddrB_cs_n,ChromaLevel_Cr_mbAddrB_wr_n;

        wire [3:0] ChromaLevel_Cr_mbAddrB_rd_addr,ChromaLevel_Cr_mbAddrB_wr_addr;

        wire [9:0] ChromaLevel_Cr_mbAddrB_din;

        wire [9:0] ChromaLevel_Cr_mbAddrB_dout;

        wire [4:0] nC;

        wire [4:0] NumCoeffTrailingOnes_len;

        wire [3:0] levelSuffixSize;

        wire [8:0] level_0,level_1,level_2, level_3, level_4, level_5, level_6, level_7;

        wire [8:0] level_8,level_9,level_10,level_11,level_12,level_13,level_14,level_15;

        wire [3:0] total_zeros;

        wire [3:0] total_zeros_len;

        wire [3:0] run_of_zeros_len;

        nC_decoding nC_decoding (

                .clk(clk),

                .reset_n(reset_n),

                .gclk_end_of_MB_DEC(gclk_end_of_MB_DEC),

                .cavlc_decoder_state(cavlc_decoder_state),

                .residual_state(residual_state),

                .slice_data_state(slice_data_state),

                .mb_num_h(mb_num_h),

                .mb_num_v(mb_num_v),

                .i8x8(i8x8),

                .i4x4(i4x4),

                .i4x4_CbCr(i4x4_CbCr),

                .CodedBlockPatternLuma(CodedBlockPatternLuma),

                .CodedBlockPatternChroma(CodedBlockPatternChroma),

                .LumaLevel_mbAddrB_dout(LumaLevel_mbAddrB_dout),

                .ChromaLevel_Cb_mbAddrB_dout(ChromaLevel_Cb_mbAddrB_dout),

                .ChromaLevel_Cr_mbAddrB_dout(ChromaLevel_Cr_mbAddrB_dout),

                .end_of_one_residual_block(end_of_one_residual_block),

                .TotalCoeff(TotalCoeff),

                .nC(nC),

                .Luma_8x8_AllZeroCoeff_mbAddrA(Luma_8x8_AllZeroCoeff_mbAddrA),

                .LumaLevel_mbAddrA(LumaLevel_mbAddrA),

                .LumaLevel_CurrMb0(LumaLevel_CurrMb0),

                .LumaLevel_CurrMb1(LumaLevel_CurrMb1),

                .LumaLevel_CurrMb2(LumaLevel_CurrMb2),

                .LumaLevel_CurrMb3(LumaLevel_CurrMb3),

                .LumaLevel_mbAddrB_cs_n(LumaLevel_mbAddrB_cs_n),

                .LumaLevel_mbAddrB_wr_n(LumaLevel_mbAddrB_wr_n),

                .LumaLevel_mbAddrB_rd_addr(LumaLevel_mbAddrB_rd_addr),

                .LumaLevel_mbAddrB_wr_addr(LumaLevel_mbAddrB_wr_addr),

                .LumaLevel_mbAddrB_din(LumaLevel_mbAddrB_din),

                .ChromaLevel_Cb_mbAddrB_cs_n(ChromaLevel_Cb_mbAddrB_cs_n),

                .ChromaLevel_Cb_mbAddrB_wr_n(ChromaLevel_Cb_mbAddrB_wr_n),

                .ChromaLevel_Cb_mbAddrB_rd_addr(ChromaLevel_Cb_mbAddrB_rd_addr),

                .ChromaLevel_Cb_mbAddrB_wr_addr(ChromaLevel_Cb_mbAddrB_wr_addr),

                .ChromaLevel_Cb_mbAddrB_din(ChromaLevel_Cb_mbAddrB_din),

                .ChromaLevel_Cr_mbAddrB_cs_n(ChromaLevel_Cr_mbAddrB_cs_n),

                .ChromaLevel_Cr_mbAddrB_wr_n(ChromaLevel_Cr_mbAddrB_wr_n),

                .ChromaLevel_Cr_mbAddrB_rd_addr(ChromaLevel_Cr_mbAddrB_rd_addr),

                .ChromaLevel_Cr_mbAddrB_wr_addr(ChromaLevel_Cr_mbAddrB_wr_addr),

                .ChromaLevel_Cr_mbAddrB_din(ChromaLevel_Cr_mbAddrB_din)

                );

        ram_async_1r_sync_1w # (`LumaLevel_mbAddrB_RF_data_width,`LumaLevel_mbAddrB_RF_data_depth)

        LumaLevel_mbAddrB_RF(

                .clk(gclk_LumaLevel_mbAddrB_RF),

                .rst_n(reset_n),

                .cs_n(LumaLevel_mbAddrB_cs_n),

                .wr_n(LumaLevel_mbAddrB_wr_n),

                .rd_addr(LumaLevel_mbAddrB_rd_addr),

                .wr_addr(LumaLevel_mbAddrB_wr_addr),

                .data_in(LumaLevel_mbAddrB_din),

                .data_out(LumaLevel_mbAddrB_dout)

                );

        ram_async_1r_sync_1w # (`ChromaLevel_Cb_mbAddrB_RF_data_width,`ChromaLevel_Cb_mbAddrB_RF_data_depth)

                ChromaLevel_Cb_mbAddrB_RF(

                .clk(gclk_ChromaLevel_Cb_mbAddrB_RF),

                .rst_n(reset_n),

                .cs_n(ChromaLevel_Cb_mbAddrB_cs_n),

                .wr_n(ChromaLevel_Cb_mbAddrB_wr_n),

                .rd_addr(ChromaLevel_Cb_mbAddrB_rd_addr),

                .wr_addr(ChromaLevel_Cb_mbAddrB_wr_addr),

                .data_in(ChromaLevel_Cb_mbAddrB_din),

                .data_out(ChromaLevel_Cb_mbAddrB_dout)

                );

        ram_async_1r_sync_1w # (`ChromaLevel_Cr_mbAddrB_RF_data_width,`ChromaLevel_Cr_mbAddrB_RF_data_depth)

                ChromaLevel_Cr_mbAddrB_RF(

                .clk(gclk_ChromaLevel_Cr_mbAddrB_RF),

                .rst_n(reset_n),

                .cs_n(ChromaLevel_Cr_mbAddrB_cs_n),

                .wr_n(ChromaLevel_Cr_mbAddrB_wr_n),

                .rd_addr(ChromaLevel_Cr_mbAddrB_rd_addr),

                .wr_addr(ChromaLevel_Cr_mbAddrB_wr_addr),

                .data_in(ChromaLevel_Cr_mbAddrB_din),

                .data_out(ChromaLevel_Cr_mbAddrB_dout)

                );

        NumCoeffTrailingOnes_decoding NumCoeffTrailingOnes_decoding(

                .clk(clk),

                .reset_n(reset_n),

                .cavlc_decoder_state(cavlc_decoder_state),

                .heading_one_pos(heading_one_pos),

                .BitStream_buffer_output(BitStream_buffer_output),

                .nC(nC),

                .TrailingOnes(TrailingOnes),

                .TotalCoeff(TotalCoeff),

                .NumCoeffTrailingOnes_len(NumCoeffTrailingOnes_len)

                );

        level_decoding level_decoding(

                .clk(clk),

                .reset_n(reset_n),

                .cavlc_decoder_state(cavlc_decoder_state),

                .heading_one_pos(heading_one_pos),

                .suffix_length_initialized(suffix_length_initialized),

                .i_level(i_level),

                .TotalCoeff(TotalCoeff),

                .TrailingOnes(TrailingOnes),

                .BitStream_buffer_output(BitStream_buffer_output),

                .levelSuffixSize(levelSuffixSize),

                .level_0(level_0),

                .level_1(level_1),

                .level_2(level_2),

                .level_3(level_3),

                .level_4(level_4),

                .level_5(level_5),

                .level_6(level_6),

                .level_7(level_7),

                .level_8(level_8),

                .level_9(level_9),

                .level_10(level_10),

                .level_11(level_11),

                .level_12(level_12),

                .level_13(level_13),

                .level_14(level_14),

                .level_15(level_15)

                );

        total_zeros_decoding total_zeros_decoding(

                .clk(clk),

                .reset_n(reset_n),

                .residual_state(residual_state),

                .cavlc_decoder_state(cavlc_decoder_state),

                .TotalCoeff_3to0(TotalCoeff[3:0]),

                .heading_one_pos(heading_one_pos),

                .BitStream_buffer_output(BitStream_buffer_output),

                .maxNumCoeff(maxNumCoeff),

                .total_zeros(total_zeros),

                .total_zeros_len(total_zeros_len)

                );

        run_decoding run_decoding(

                .clk(clk),

                .reset_n(reset_n),

                .cavlc_decoder_state(cavlc_decoder_state),

                .BitStream_buffer_output(BitStream_buffer_output),

                .total_zeros(total_zeros),

                .level_0(level_0),

                .level_1(level_1),

                .level_2(level_2),

                .level_3(level_3),

                .level_4(level_4),

                .level_5(level_5),

                .level_6(level_6),

                .level_7(level_7),

                .level_8(level_8),

                .level_9(level_9),

                .level_10(level_10),

                .level_11(level_11),

                .level_12(level_12),

                .level_13(level_13),

                .level_14(level_14),

                .level_15(level_15),

                .TotalCoeff(TotalCoeff),

                .i_run(i_run),

                .i_TotalCoeff(i_TotalCoeff),

                .coeffNum(coeffNum),

                .IsRunLoop(IsRunLoop),

                .run_of_zeros_len(run_of_zeros_len),

                .zerosLeft(zerosLeft),

                .run(run),

                .coeffLevel_0(coeffLevel_0),

                .coeffLevel_1(coeffLevel_1),

                .coeffLevel_2(coeffLevel_2),

                .coeffLevel_3(coeffLevel_3),

                .coeffLevel_4(coeffLevel_4),

                .coeffLevel_5(coeffLevel_5),

                .coeffLevel_6(coeffLevel_6),

                .coeffLevel_7(coeffLevel_7),

                .coeffLevel_8(coeffLevel_8),

                .coeffLevel_9(coeffLevel_9),

                .coeffLevel_10(coeffLevel_10),

                .coeffLevel_11(coeffLevel_11),

                .coeffLevel_12(coeffLevel_12),

                .coeffLevel_13(coeffLevel_13),

                .coeffLevel_14(coeffLevel_14),

                .coeffLevel_15(coeffLevel_15)

                );

        end_of_blk_decoding end_of_blk_decoding(

                .reset_n(reset_n),

                .cavlc_decoder_state(cavlc_decoder_state),

                .TotalCoeff(TotalCoeff),

                .i_TotalCoeff(i_TotalCoeff),

                .end_of_one_residual_block(end_of_one_residual_block),

                .end_of_NonZeroCoeff_CAVLC(end_of_NonZeroCoeff_CAVLC)

                );

        cavlc_consumed_bits_decoding cavlc_consumed_bits_decoding(

                .cavlc_decoder_state(cavlc_decoder_state),

                .NumCoeffTrailingOnes_len(NumCoeffTrailingOnes_len),

                .TrailingOnes(TrailingOnes),

                .heading_one_pos(heading_one_pos),

                .levelSuffixSize(levelSuffixSize),

                .total_zeros_len(total_zeros_len),

                .run_of_zeros_len(run_of_zeros_len),

                .cavlc_consumed_bits_len(cavlc_consumed_bits_len)

                );

endmodule