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

// Design    : nova

// Author(s) : Ke Xu

// Email           : eexuke@yahoo.com

// File      : Inter_pred_sliding_window.v

// Generated : Oct 25, 2005

// Copyright (C) 2008 Ke Xu                

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

// Description 

// Prepare the appropriate registers for Inter prediction (luma & chroma) 

// 1)Luma:horizontal window 6x9,vertical window 1x9

// 2)Chroma:window 2x2

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

// synopsys translate_off

`include "timescale.v"

// synopsys translate_on

`include "nova_defines.v"

module Inter_pred_sliding_window (IsInterLuma,IsInterChroma,Is_InterChromaCopy,mv_below8x8_curr,

        pos_FracL,blk4x4_rec_counter_1to0,blk4x4_inter_calculate_counter,

        Inter_ref_00_00,Inter_ref_01_00,Inter_ref_02_00,Inter_ref_03_00,Inter_ref_04_00,Inter_ref_05_00,

        Inter_ref_06_00,Inter_ref_07_00,Inter_ref_08_00,Inter_ref_09_00,Inter_ref_10_00,Inter_ref_11_00,Inter_ref_12_00,

        Inter_ref_00_01,Inter_ref_01_01,Inter_ref_02_01,Inter_ref_03_01,Inter_ref_04_01,Inter_ref_05_01,

        Inter_ref_06_01,Inter_ref_07_01,Inter_ref_08_01,Inter_ref_09_01,Inter_ref_10_01,Inter_ref_11_01,Inter_ref_12_01,

        Inter_ref_00_02,Inter_ref_01_02,Inter_ref_02_02,Inter_ref_03_02,Inter_ref_04_02,Inter_ref_05_02,

        Inter_ref_06_02,Inter_ref_07_02,Inter_ref_08_02,Inter_ref_09_02,Inter_ref_10_02,Inter_ref_11_02,Inter_ref_12_02,

        Inter_ref_00_03,Inter_ref_01_03,Inter_ref_02_03,Inter_ref_03_03,Inter_ref_04_03,Inter_ref_05_03,

        Inter_ref_06_03,Inter_ref_07_03,Inter_ref_08_03,Inter_ref_09_03,Inter_ref_10_03,Inter_ref_11_03,Inter_ref_12_03,

        Inter_ref_00_04,Inter_ref_01_04,Inter_ref_02_04,Inter_ref_03_04,Inter_ref_04_04,Inter_ref_05_04,

        Inter_ref_06_04,Inter_ref_07_04,Inter_ref_08_04,Inter_ref_09_04,Inter_ref_10_04,Inter_ref_11_04,Inter_ref_12_04,

        Inter_ref_00_05,Inter_ref_01_05,Inter_ref_02_05,Inter_ref_03_05,Inter_ref_04_05,Inter_ref_05_05,

        Inter_ref_06_05,Inter_ref_07_05,Inter_ref_08_05,Inter_ref_09_05,Inter_ref_10_05,Inter_ref_11_05,Inter_ref_12_05,

        Inter_ref_00_06,Inter_ref_01_06,Inter_ref_02_06,Inter_ref_03_06,Inter_ref_04_06,Inter_ref_05_06,

        Inter_ref_06_06,Inter_ref_07_06,Inter_ref_08_06,Inter_ref_09_06,Inter_ref_10_06,Inter_ref_11_06,Inter_ref_12_06,

        Inter_ref_00_07,Inter_ref_01_07,Inter_ref_02_07,Inter_ref_03_07,Inter_ref_04_07,Inter_ref_05_07,

        Inter_ref_06_07,Inter_ref_07_07,Inter_ref_08_07,Inter_ref_09_07,Inter_ref_10_07,Inter_ref_11_07,Inter_ref_12_07,

        Inter_ref_00_08,Inter_ref_01_08,Inter_ref_02_08,Inter_ref_03_08,Inter_ref_04_08,Inter_ref_05_08,

        Inter_ref_06_08,Inter_ref_07_08,Inter_ref_08_08,Inter_ref_09_08,Inter_ref_10_08,Inter_ref_11_08,Inter_ref_12_08,

        Inter_ref_00_09,Inter_ref_01_09,Inter_ref_02_09,Inter_ref_03_09,Inter_ref_04_09,Inter_ref_05_09,

        Inter_ref_06_09,Inter_ref_07_09,Inter_ref_08_09,Inter_ref_09_09,Inter_ref_10_09,Inter_ref_11_09,Inter_ref_12_09,

        Inter_ref_00_10,Inter_ref_01_10,Inter_ref_02_10,Inter_ref_03_10,Inter_ref_04_10,Inter_ref_05_10,

        Inter_ref_06_10,Inter_ref_07_10,Inter_ref_08_10,Inter_ref_09_10,Inter_ref_10_10,Inter_ref_11_10,Inter_ref_12_10,

        Inter_ref_00_11,Inter_ref_01_11,Inter_ref_02_11,Inter_ref_03_11,Inter_ref_04_11,Inter_ref_05_11,

        Inter_ref_06_11,Inter_ref_07_11,Inter_ref_08_11,Inter_ref_09_11,Inter_ref_10_11,Inter_ref_11_11,Inter_ref_12_11,

        Inter_ref_00_12,Inter_ref_01_12,Inter_ref_02_12,Inter_ref_03_12,Inter_ref_04_12,Inter_ref_05_12,

        Inter_ref_06_12,Inter_ref_07_12,Inter_ref_08_12,Inter_ref_09_12,Inter_ref_10_12,Inter_ref_11_12,Inter_ref_12_12,

        Inter_pix_copy0,Inter_pix_copy1,Inter_pix_copy2,Inter_pix_copy3,

        Inter_H_window_0_0,Inter_H_window_1_0,Inter_H_window_2_0,Inter_H_window_3_0,Inter_H_window_4_0,Inter_H_window_5_0,

        Inter_H_window_0_1,Inter_H_window_1_1,Inter_H_window_2_1,Inter_H_window_3_1,Inter_H_window_4_1,Inter_H_window_5_1,

        Inter_H_window_0_2,Inter_H_window_1_2,Inter_H_window_2_2,Inter_H_window_3_2,Inter_H_window_4_2,Inter_H_window_5_2,

        Inter_H_window_0_3,Inter_H_window_1_3,Inter_H_window_2_3,Inter_H_window_3_3,Inter_H_window_4_3,Inter_H_window_5_3,

        Inter_H_window_0_4,Inter_H_window_1_4,Inter_H_window_2_4,Inter_H_window_3_4,Inter_H_window_4_4,Inter_H_window_5_4,

        Inter_H_window_0_5,Inter_H_window_1_5,Inter_H_window_2_5,Inter_H_window_3_5,Inter_H_window_4_5,Inter_H_window_5_5,

        Inter_H_window_0_6,Inter_H_window_1_6,Inter_H_window_2_6,Inter_H_window_3_6,Inter_H_window_4_6,Inter_H_window_5_6,

        Inter_H_window_0_7,Inter_H_window_1_7,Inter_H_window_2_7,Inter_H_window_3_7,Inter_H_window_4_7,Inter_H_window_5_7,

        Inter_H_window_0_8,Inter_H_window_1_8,Inter_H_window_2_8,Inter_H_window_3_8,Inter_H_window_4_8,Inter_H_window_5_8,

        Inter_V_window_0,Inter_V_window_1,Inter_V_window_2,Inter_V_window_3,Inter_V_window_4,

        Inter_V_window_5,Inter_V_window_6,Inter_V_window_7,Inter_V_window_8,

        Inter_C_window_0_0,Inter_C_window_1_0,Inter_C_window_2_0,

        Inter_C_window_0_1,Inter_C_window_1_1,Inter_C_window_2_1,

        Inter_C_window_0_2,Inter_C_window_1_2,Inter_C_window_2_2,

        Inter_bi_window_0,Inter_bi_window_1,Inter_bi_window_2,Inter_bi_window_3);

        input IsInterLuma;

        input IsInterChroma;

        input Is_InterChromaCopy;

        input mv_below8x8_curr;

        input [3:0] pos_FracL;

        input [1:0] blk4x4_rec_counter_1to0;

        input [3:0] blk4x4_inter_calculate_counter;

        input [7:0] Inter_ref_00_00,Inter_ref_01_00,Inter_ref_02_00,Inter_ref_03_00,Inter_ref_04_00,Inter_ref_05_00;

        input [7:0] Inter_ref_06_00,Inter_ref_07_00,Inter_ref_08_00,Inter_ref_09_00,Inter_ref_10_00,Inter_ref_11_00,Inter_ref_12_00;

        input [7:0] Inter_ref_00_01,Inter_ref_01_01,Inter_ref_02_01,Inter_ref_03_01,Inter_ref_04_01,Inter_ref_05_01;

        input [7:0] Inter_ref_06_01,Inter_ref_07_01,Inter_ref_08_01,Inter_ref_09_01,Inter_ref_10_01,Inter_ref_11_01,Inter_ref_12_01;

        input [7:0] Inter_ref_00_02,Inter_ref_01_02,Inter_ref_02_02,Inter_ref_03_02,Inter_ref_04_02,Inter_ref_05_02;

        input [7:0] Inter_ref_06_02,Inter_ref_07_02,Inter_ref_08_02,Inter_ref_09_02,Inter_ref_10_02,Inter_ref_11_02,Inter_ref_12_02;

        input [7:0] Inter_ref_00_03,Inter_ref_01_03,Inter_ref_02_03,Inter_ref_03_03,Inter_ref_04_03,Inter_ref_05_03;

        input [7:0] Inter_ref_06_03,Inter_ref_07_03,Inter_ref_08_03,Inter_ref_09_03,Inter_ref_10_03,Inter_ref_11_03,Inter_ref_12_03;

        input [7:0] Inter_ref_00_04,Inter_ref_01_04,Inter_ref_02_04,Inter_ref_03_04,Inter_ref_04_04,Inter_ref_05_04;

        input [7:0] Inter_ref_06_04,Inter_ref_07_04,Inter_ref_08_04,Inter_ref_09_04,Inter_ref_10_04,Inter_ref_11_04,Inter_ref_12_04;

        input [7:0] Inter_ref_00_05,Inter_ref_01_05,Inter_ref_02_05,Inter_ref_03_05,Inter_ref_04_05,Inter_ref_05_05;

        input [7:0] Inter_ref_06_05,Inter_ref_07_05,Inter_ref_08_05,Inter_ref_09_05,Inter_ref_10_05,Inter_ref_11_05,Inter_ref_12_05;

        input [7:0] Inter_ref_00_06,Inter_ref_01_06,Inter_ref_02_06,Inter_ref_03_06,Inter_ref_04_06,Inter_ref_05_06;

        input [7:0] Inter_ref_06_06,Inter_ref_07_06,Inter_ref_08_06,Inter_ref_09_06,Inter_ref_10_06,Inter_ref_11_06,Inter_ref_12_06;

        input [7:0] Inter_ref_00_07,Inter_ref_01_07,Inter_ref_02_07,Inter_ref_03_07,Inter_ref_04_07,Inter_ref_05_07;

        input [7:0] Inter_ref_06_07,Inter_ref_07_07,Inter_ref_08_07,Inter_ref_09_07,Inter_ref_10_07,Inter_ref_11_07,Inter_ref_12_07;

        input [7:0] Inter_ref_00_08,Inter_ref_01_08,Inter_ref_02_08,Inter_ref_03_08,Inter_ref_04_08,Inter_ref_05_08;

        input [7:0] Inter_ref_06_08,Inter_ref_07_08,Inter_ref_08_08,Inter_ref_09_08,Inter_ref_10_08,Inter_ref_11_08,Inter_ref_12_08;

        input [7:0] Inter_ref_00_09,Inter_ref_01_09,Inter_ref_02_09,Inter_ref_03_09,Inter_ref_04_09,Inter_ref_05_09;

        input [7:0] Inter_ref_06_09,Inter_ref_07_09,Inter_ref_08_09,Inter_ref_09_09,Inter_ref_10_09,Inter_ref_11_09,Inter_ref_12_09;

        input [7:0] Inter_ref_00_10,Inter_ref_01_10,Inter_ref_02_10,Inter_ref_03_10,Inter_ref_04_10,Inter_ref_05_10;

        input [7:0] Inter_ref_06_10,Inter_ref_07_10,Inter_ref_08_10,Inter_ref_09_10,Inter_ref_10_10,Inter_ref_11_10,Inter_ref_12_10;

        input [7:0] Inter_ref_00_11,Inter_ref_01_11,Inter_ref_02_11,Inter_ref_03_11,Inter_ref_04_11,Inter_ref_05_11;

        input [7:0] Inter_ref_06_11,Inter_ref_07_11,Inter_ref_08_11,Inter_ref_09_11,Inter_ref_10_11,Inter_ref_11_11,Inter_ref_12_11;

        input [7:0] Inter_ref_00_12,Inter_ref_01_12,Inter_ref_02_12,Inter_ref_03_12,Inter_ref_04_12,Inter_ref_05_12;

        input [7:0] Inter_ref_06_12,Inter_ref_07_12,Inter_ref_08_12,Inter_ref_09_12,Inter_ref_10_12,Inter_ref_11_12,Inter_ref_12_12;

        output [7:0] Inter_pix_copy0,Inter_pix_copy1,Inter_pix_copy2,Inter_pix_copy3;

        output [7:0] Inter_H_window_0_0,Inter_H_window_1_0,Inter_H_window_2_0,Inter_H_window_3_0,Inter_H_window_4_0,Inter_H_window_5_0;

        output [7:0] Inter_H_window_0_1,Inter_H_window_1_1,Inter_H_window_2_1,Inter_H_window_3_1,Inter_H_window_4_1,Inter_H_window_5_1;

        output [7:0] Inter_H_window_0_2,Inter_H_window_1_2,Inter_H_window_2_2,Inter_H_window_3_2,Inter_H_window_4_2,Inter_H_window_5_2;

        output [7:0] Inter_H_window_0_3,Inter_H_window_1_3,Inter_H_window_2_3,Inter_H_window_3_3,Inter_H_window_4_3,Inter_H_window_5_3;

        output [7:0] Inter_H_window_0_4,Inter_H_window_1_4,Inter_H_window_2_4,Inter_H_window_3_4,Inter_H_window_4_4,Inter_H_window_5_4;

        output [7:0] Inter_H_window_0_5,Inter_H_window_1_5,Inter_H_window_2_5,Inter_H_window_3_5,Inter_H_window_4_5,Inter_H_window_5_5;

        output [7:0] Inter_H_window_0_6,Inter_H_window_1_6,Inter_H_window_2_6,Inter_H_window_3_6,Inter_H_window_4_6,Inter_H_window_5_6;

        output [7:0] Inter_H_window_0_7,Inter_H_window_1_7,Inter_H_window_2_7,Inter_H_window_3_7,Inter_H_window_4_7,Inter_H_window_5_7;

        output [7:0] Inter_H_window_0_8,Inter_H_window_1_8,Inter_H_window_2_8,Inter_H_window_3_8,Inter_H_window_4_8,Inter_H_window_5_8;

        output [7:0] Inter_V_window_0,Inter_V_window_1,Inter_V_window_2,Inter_V_window_3,Inter_V_window_4;

        output [7:0] Inter_V_window_5,Inter_V_window_6,Inter_V_window_7,Inter_V_window_8;

        output [7:0] Inter_C_window_0_0,Inter_C_window_1_0,Inter_C_window_2_0;

        output [7:0] Inter_C_window_0_1,Inter_C_window_1_1,Inter_C_window_2_1;

        output [7:0] Inter_C_window_0_2,Inter_C_window_1_2,Inter_C_window_2_2;

        output [7:0] Inter_bi_window_0,Inter_bi_window_1,Inter_bi_window_2,Inter_bi_window_3;

        reg [7:0] Inter_pix_copy0,Inter_pix_copy1,Inter_pix_copy2,Inter_pix_copy3;

        reg [7:0] Inter_H_window_0_0,Inter_H_window_1_0,Inter_H_window_2_0,Inter_H_window_3_0,Inter_H_window_4_0,Inter_H_window_5_0;

        reg [7:0] Inter_H_window_0_1,Inter_H_window_1_1,Inter_H_window_2_1,Inter_H_window_3_1,Inter_H_window_4_1,Inter_H_window_5_1;

        reg [7:0] Inter_H_window_0_2,Inter_H_window_1_2,Inter_H_window_2_2,Inter_H_window_3_2,Inter_H_window_4_2,Inter_H_window_5_2;

        reg [7:0] Inter_H_window_0_3,Inter_H_window_1_3,Inter_H_window_2_3,Inter_H_window_3_3,Inter_H_window_4_3,Inter_H_window_5_3;

        reg [7:0] Inter_H_window_0_4,Inter_H_window_1_4,Inter_H_window_2_4,Inter_H_window_3_4,Inter_H_window_4_4,Inter_H_window_5_4;

        reg [7:0] Inter_H_window_0_5,Inter_H_window_1_5,Inter_H_window_2_5,Inter_H_window_3_5,Inter_H_window_4_5,Inter_H_window_5_5;

        reg [7:0] Inter_H_window_0_6,Inter_H_window_1_6,Inter_H_window_2_6,Inter_H_window_3_6,Inter_H_window_4_6,Inter_H_window_5_6;

        reg [7:0] Inter_H_window_0_7,Inter_H_window_1_7,Inter_H_window_2_7,Inter_H_window_3_7,Inter_H_window_4_7,Inter_H_window_5_7;

        reg [7:0] Inter_H_window_0_8,Inter_H_window_1_8,Inter_H_window_2_8,Inter_H_window_3_8,Inter_H_window_4_8,Inter_H_window_5_8;

        reg [7:0] Inter_V_window_0,Inter_V_window_1,Inter_V_window_2,Inter_V_window_3,Inter_V_window_4;

        reg [7:0] Inter_V_window_5,Inter_V_window_6,Inter_V_window_7,Inter_V_window_8;

        reg [7:0] Inter_C_window_0_0,Inter_C_window_1_0,Inter_C_window_2_0;

        reg [7:0] Inter_C_window_0_1,Inter_C_window_1_1,Inter_C_window_2_1;

        reg [7:0] Inter_C_window_0_2,Inter_C_window_1_2,Inter_C_window_2_2;

        reg [7:0] Inter_bi_window_0,Inter_bi_window_1,Inter_bi_window_2,Inter_bi_window_3;

        parameter pos_Int = 4'b0000;

        parameter pos_a   = 4'b0100;

        parameter pos_b   = 4'b1000;

        parameter pos_c   = 4'b1100;

        parameter pos_d   = 4'b0001;

        parameter pos_e   = 4'b0101;

        parameter pos_f   = 4'b1001;

        parameter pos_g   = 4'b1101;

        parameter pos_h   = 4'b0010;

        parameter pos_i   = 4'b0110;

        parameter pos_j   = 4'b1010;

        parameter pos_k   = 4'b1110;

        parameter pos_n   = 4'b0011;

        parameter pos_p   = 4'b0111;

        parameter pos_q   = 4'b1011;

        parameter pos_r   = 4'b1111;

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

        //sliding window control                 

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

        wire Is_blk4x4_0;//When inter 8x8(or above) predicted: top-left blk4x4

                                         //When inter 4x4           predicted: each blk4x4

        wire Is_blk4x4_1;

        wire Is_blk4x4_2;

        wire Is_blk4x4_3;

        assign Is_blk4x4_0 = (IsInterLuma && (mv_below8x8_curr || (!mv_below8x8_curr &&

                                                        blk4x4_rec_counter_1to0 == 2'b00)));                                                                    //top-left

        assign Is_blk4x4_1 = (IsInterLuma && (!mv_below8x8_curr && blk4x4_rec_counter_1to0 == 2'b01));  //top-right

        assign Is_blk4x4_2 = (IsInterLuma && (!mv_below8x8_curr && blk4x4_rec_counter_1to0 == 2'b10));  //bottom-left

        assign Is_blk4x4_3 = (IsInterLuma && (!mv_below8x8_curr && blk4x4_rec_counter_1to0 == 2'b11));  //bottom-right

        //For both luma & chroma,if current pixel is to be directly copied instead of inter calculated,

        //the sliding windows output Inter_pix_copy0 ~ 3 is the inter prediction output

        always @ (IsInterLuma or pos_FracL or blk4x4_inter_calculate_counter

                or Is_blk4x4_0 or Is_blk4x4_1 or Is_blk4x4_2 or Is_blk4x4_3

                or Is_InterChromaCopy or mv_below8x8_curr

                or Inter_ref_00_00 or Inter_ref_01_00 or Inter_ref_02_00 or Inter_ref_03_00

                or Inter_ref_00_01 or Inter_ref_01_01 or Inter_ref_02_01 or Inter_ref_03_01

                or Inter_ref_00_02 or Inter_ref_01_02 or Inter_ref_02_02 or Inter_ref_03_02

                or Inter_ref_04_02 or Inter_ref_05_02 or Inter_ref_06_02 or Inter_ref_07_02

                or Inter_ref_08_02 or Inter_ref_09_02 or Inter_ref_00_03 or Inter_ref_01_03

                or Inter_ref_02_03 or Inter_ref_03_03 or Inter_ref_04_03 or Inter_ref_05_03

                or Inter_ref_06_03 or Inter_ref_07_03 or Inter_ref_08_03 or Inter_ref_09_03

                or Inter_ref_02_04 or Inter_ref_03_04 or Inter_ref_04_04 or Inter_ref_05_04

                or Inter_ref_06_04 or Inter_ref_07_04 or Inter_ref_08_04 or Inter_ref_09_04

                or Inter_ref_02_05 or Inter_ref_03_05 or Inter_ref_04_05 or Inter_ref_05_05

                or Inter_ref_06_05 or Inter_ref_07_05 or Inter_ref_08_05 or Inter_ref_09_05

                or Inter_ref_02_06 or Inter_ref_03_06 or Inter_ref_04_06 or Inter_ref_05_06

                or Inter_ref_06_06 or Inter_ref_07_06 or Inter_ref_08_06 or Inter_ref_09_06

                or Inter_ref_02_07 or Inter_ref_03_07 or Inter_ref_04_07 or Inter_ref_05_07

                or Inter_ref_06_07 or Inter_ref_07_07 or Inter_ref_08_07 or Inter_ref_09_07

                or Inter_ref_02_08 or Inter_ref_03_08 or Inter_ref_04_08 or Inter_ref_05_08

                or Inter_ref_06_08 or Inter_ref_07_08 or Inter_ref_08_08 or Inter_ref_09_08

                or Inter_ref_02_09 or Inter_ref_03_09 or Inter_ref_04_09 or Inter_ref_05_09

                or Inter_ref_06_09 or Inter_ref_07_09 or Inter_ref_08_09 or Inter_ref_09_09)

                if (IsInterLuma && pos_FracL == `pos_Int)

                        case ({Is_blk4x4_0,Is_blk4x4_1,Is_blk4x4_2,Is_blk4x4_3})

                                4'b1000:

                                case (blk4x4_inter_calculate_counter)

                                        4'd4:begin      Inter_pix_copy0 <= Inter_ref_02_02;     Inter_pix_copy1 <= Inter_ref_02_03;

                                                                Inter_pix_copy2 <= Inter_ref_02_04;     Inter_pix_copy3 <= Inter_ref_02_05;end

                                        4'd3:begin      Inter_pix_copy0 <= Inter_ref_03_02;     Inter_pix_copy1 <= Inter_ref_03_03;

                                                                Inter_pix_copy2 <= Inter_ref_03_04;     Inter_pix_copy3 <= Inter_ref_03_05;end

                                        4'd2:begin      Inter_pix_copy0 <= Inter_ref_04_02;     Inter_pix_copy1 <= Inter_ref_04_03;

                                                                Inter_pix_copy2 <= Inter_ref_04_04;     Inter_pix_copy3 <= Inter_ref_04_05;end

                                        4'd1:begin      Inter_pix_copy0 <= Inter_ref_05_02;     Inter_pix_copy1 <= Inter_ref_05_03;

                                                                Inter_pix_copy2 <= Inter_ref_05_04;     Inter_pix_copy3 <= Inter_ref_05_05;end

                                        default:begin   Inter_pix_copy0 <= 0;    Inter_pix_copy1 <= 0;

                                                                        Inter_pix_copy2 <= 0;    Inter_pix_copy3 <= 0;end

                                endcase

                                4'b0100:

                                case (blk4x4_inter_calculate_counter)

                                        4'd4:begin      Inter_pix_copy0 <= Inter_ref_06_02;     Inter_pix_copy1 <= Inter_ref_06_03;

                                                                Inter_pix_copy2 <= Inter_ref_06_04;     Inter_pix_copy3 <= Inter_ref_06_05;end

                                        4'd3:begin      Inter_pix_copy0 <= Inter_ref_07_02;     Inter_pix_copy1 <= Inter_ref_07_03;

                                                                Inter_pix_copy2 <= Inter_ref_07_04;     Inter_pix_copy3 <= Inter_ref_07_05;end

                                        4'd2:begin      Inter_pix_copy0 <= Inter_ref_08_02;     Inter_pix_copy1 <= Inter_ref_08_03;

                                                                Inter_pix_copy2 <= Inter_ref_08_04;     Inter_pix_copy3 <= Inter_ref_08_05;end

                                        4'd1:begin      Inter_pix_copy0 <= Inter_ref_09_02;     Inter_pix_copy1 <= Inter_ref_09_03;

                                                                Inter_pix_copy2 <= Inter_ref_09_04;     Inter_pix_copy3 <= Inter_ref_09_05;end

                                        default:begin   Inter_pix_copy0 <= 0;    Inter_pix_copy1 <= 0;

                                                                        Inter_pix_copy2 <= 0;    Inter_pix_copy3 <= 0;end

                                endcase

                                4'b0010:

                                case (blk4x4_inter_calculate_counter)

                                        4'd4:begin      Inter_pix_copy0 <= Inter_ref_02_06;     Inter_pix_copy1 <= Inter_ref_02_07;

                                                                Inter_pix_copy2 <= Inter_ref_02_08;     Inter_pix_copy3 <= Inter_ref_02_09;end

                                        4'd3:begin      Inter_pix_copy0 <= Inter_ref_03_06;     Inter_pix_copy1 <= Inter_ref_03_07;

                                                                Inter_pix_copy2 <= Inter_ref_03_08;     Inter_pix_copy3 <= Inter_ref_03_09;end

                                        4'd2:begin      Inter_pix_copy0 <= Inter_ref_04_06;     Inter_pix_copy1 <= Inter_ref_04_07;

                                                                Inter_pix_copy2 <= Inter_ref_04_08;     Inter_pix_copy3 <= Inter_ref_04_09;end

                                        4'd1:begin      Inter_pix_copy0 <= Inter_ref_05_06;     Inter_pix_copy1 <= Inter_ref_05_07;

                                                                Inter_pix_copy2 <= Inter_ref_05_08;     Inter_pix_copy3 <= Inter_ref_05_09;end

                                        default:begin   Inter_pix_copy0 <= 0;    Inter_pix_copy1 <= 0;

                                                                        Inter_pix_copy2 <= 0;    Inter_pix_copy3 <= 0;end

                                endcase

                                4'b0001:

                                case (blk4x4_inter_calculate_counter)

                                        4'd4:begin      Inter_pix_copy0 <= Inter_ref_06_06;     Inter_pix_copy1 <= Inter_ref_06_07;

                                                                Inter_pix_copy2 <= Inter_ref_06_08;     Inter_pix_copy3 <= Inter_ref_06_09;end

                                        4'd3:begin      Inter_pix_copy0 <= Inter_ref_07_06;     Inter_pix_copy1 <= Inter_ref_07_07;

                                                                Inter_pix_copy2 <= Inter_ref_07_08;     Inter_pix_copy3 <= Inter_ref_07_09;end

                                        4'd2:begin      Inter_pix_copy0 <= Inter_ref_08_06;     Inter_pix_copy1 <= Inter_ref_08_07;

                                                                Inter_pix_copy2 <= Inter_ref_08_08;     Inter_pix_copy3 <= Inter_ref_08_09;end

                                        4'd1:begin      Inter_pix_copy0 <= Inter_ref_09_06;     Inter_pix_copy1 <= Inter_ref_09_07;

                                                                Inter_pix_copy2 <= Inter_ref_09_08;     Inter_pix_copy3 <= Inter_ref_09_09;end

                                        default:begin   Inter_pix_copy0 <= 0;    Inter_pix_copy1 <= 0;

                                                                        Inter_pix_copy2 <= 0;    Inter_pix_copy3 <= 0;end

                                endcase

                                default:begin   Inter_pix_copy0 <= 0;    Inter_pix_copy1 <= 0;

                                                                Inter_pix_copy2 <= 0;    Inter_pix_copy3 <= 0;end

                        endcase

                else if (Is_InterChromaCopy)

                        case (mv_below8x8_curr)

                                1'b1://only one cycle

                                begin

                                        Inter_pix_copy0 <= (blk4x4_inter_calculate_counter != 0)? Inter_ref_00_00:0;

                                        Inter_pix_copy1 <= (blk4x4_inter_calculate_counter != 0)? Inter_ref_01_00:0;

                                        Inter_pix_copy2 <= (blk4x4_inter_calculate_counter != 0)? Inter_ref_00_01:0;

                                        Inter_pix_copy3 <= (blk4x4_inter_calculate_counter != 0)? Inter_ref_01_01:0;

                                end

                                1'b0://4 cycles,each cycle for one blk2x2 in blk2x2-zig-zag order

                                        case (blk4x4_inter_calculate_counter)

                                                4'd4:

                                                begin

                                                        Inter_pix_copy0 <= Inter_ref_00_00;     Inter_pix_copy1 <= Inter_ref_01_00;

                                                        Inter_pix_copy2 <= Inter_ref_00_01; Inter_pix_copy3 <= Inter_ref_01_01;

                                                end

                                                4'd3:

                                                begin

                                                        Inter_pix_copy0 <= Inter_ref_02_00; Inter_pix_copy1 <= Inter_ref_03_00;

                                                        Inter_pix_copy2 <= Inter_ref_02_01; Inter_pix_copy3 <= Inter_ref_03_01;

                                                end

                                                4'd2:

                                                begin

                                                        Inter_pix_copy0 <= Inter_ref_00_02; Inter_pix_copy1 <= Inter_ref_01_02;

                                                        Inter_pix_copy2 <= Inter_ref_00_03; Inter_pix_copy3 <= Inter_ref_01_03;

                                                end

                                                4'd1:

                                                begin

                                                        Inter_pix_copy0 <= Inter_ref_02_02; Inter_pix_copy1 <= Inter_ref_03_02;

                                                        Inter_pix_copy2 <= Inter_ref_02_03; Inter_pix_copy3 <= Inter_ref_03_03;

                                                end

                                                default:

                                                begin

                                                        Inter_pix_copy0 <= 0; Inter_pix_copy1 <= 0;       Inter_pix_copy2 <= 0;    Inter_pix_copy3 <= 0;

                                                end

                                        endcase

                        endcase

                else

                        begin

                                Inter_pix_copy0 <= 0; Inter_pix_copy1 <= 0; Inter_pix_copy2 <= 0; Inter_pix_copy3 <= 0;

                        end

        //Horizontal sliding windows:Inter_H_window_0_0 ~ Inter_H_window_5_8 (6x9 windows)

        //                                                       Inter_H_window_x_0,Inter_H_window_x_1,Inter_H_window_x_6,Inter_H_window_x_7,Inter_H_window_x_8

        //                                                       are only used for pos_j/pos_i/pos_k/pos_f/pos_q

        //Vertical   sliding window:Inter_V_window_0 ~ Inter_V_window_8

        //Chroma     sliding window:Inter_C_window_0 ~ Inter_C_window_3

        //By careful study,we find that pos_b calculate cycle4 needs the same window as pos_a calculate cycl5.

        //Similar cases happens with pos_b and pos_a/pos_c,pos_h and pos_d/pos_n, pos_j and pos_f/pos_q/pos_i/pos_k......

        //Inter_H_window_counter0:for Inter_H_window_x_0/1/6/7/8 sliding window control

        reg [2:0] Inter_H_window_counter0;

        always @ (pos_FracL or blk4x4_inter_calculate_counter)

                if  ((pos_FracL == `pos_j && blk4x4_inter_calculate_counter == 4'd5)                                            ||

                        ((pos_FracL == `pos_f || pos_FracL == `pos_q) && blk4x4_inter_calculate_counter == 4'd5)        ||

                        ((pos_FracL == `pos_i || pos_FracL == `pos_k) && blk4x4_inter_calculate_counter == 4'd8))

                        Inter_H_window_counter0 <= 3'd4;

                else if ((pos_FracL == `pos_j && blk4x4_inter_calculate_counter == 4'd4)                                                ||

                                ((pos_FracL == `pos_f || pos_FracL == `pos_q) && blk4x4_inter_calculate_counter == 4'd4)        ||

                                ((pos_FracL == `pos_i || pos_FracL == `pos_k) && blk4x4_inter_calculate_counter == 4'd6))

                        Inter_H_window_counter0 <= 3'd3;

                else if ((pos_FracL == `pos_j && blk4x4_inter_calculate_counter == 4'd3)                                                ||

                                ((pos_FracL == `pos_f || pos_FracL == `pos_q) && blk4x4_inter_calculate_counter == 4'd3)        ||

                                ((pos_FracL == `pos_i || pos_FracL == `pos_k) && blk4x4_inter_calculate_counter == 4'd4))

                        Inter_H_window_counter0 <= 3'd2;

                else if ((pos_FracL == `pos_j && blk4x4_inter_calculate_counter == 4'd2)                                                ||

                                ((pos_FracL == `pos_f || pos_FracL == `pos_q) && blk4x4_inter_calculate_counter == 4'd2)        ||

                                ((pos_FracL == `pos_i || pos_FracL == `pos_k) && blk4x4_inter_calculate_counter == 4'd2))

                        Inter_H_window_counter0 <= 3'd1;

                else

                        Inter_H_window_counter0 <= 0;

        //Inter_H_window_x_0,Inter_H_window_x_1

        //Inter_H_window_x_6,Inter_H_window_x_7,Inter_H_window_x_8

        //Active only for pos j,i/k/f/q

        always @ (Is_blk4x4_0 or Is_blk4x4_1 or Is_blk4x4_2 or Is_blk4x4_3 or Inter_H_window_counter0

                or Inter_ref_00_00 or Inter_ref_01_00 or Inter_ref_02_00 or Inter_ref_03_00

                or Inter_ref_04_00 or Inter_ref_05_00 or Inter_ref_06_00 or Inter_ref_07_00

                or Inter_ref_08_00 or Inter_ref_09_00 or Inter_ref_10_00 or Inter_ref_11_00 or Inter_ref_12_00

                or Inter_ref_00_01 or Inter_ref_01_01 or Inter_ref_02_01 or Inter_ref_03_01

                or Inter_ref_04_01 or Inter_ref_05_01 or Inter_ref_06_01 or Inter_ref_07_01

                or Inter_ref_08_01 or Inter_ref_09_01 or Inter_ref_10_01 or Inter_ref_11_01 or Inter_ref_12_01

                or Inter_ref_00_06 or Inter_ref_01_06 or Inter_ref_02_06 or Inter_ref_03_06

                or Inter_ref_04_06 or Inter_ref_05_06 or Inter_ref_06_06 or Inter_ref_07_06

                or Inter_ref_08_06 or Inter_ref_09_06 or Inter_ref_10_06 or Inter_ref_11_06 or Inter_ref_12_06

                or Inter_ref_00_07 or Inter_ref_01_07 or Inter_ref_02_07 or Inter_ref_03_07

                or Inter_ref_04_07 or Inter_ref_05_07 or Inter_ref_06_07 or Inter_ref_07_07

                or Inter_ref_08_07 or Inter_ref_09_07 or Inter_ref_10_07 or Inter_ref_11_07 or Inter_ref_12_07

                or Inter_ref_00_08 or Inter_ref_01_08 or Inter_ref_02_08 or Inter_ref_03_08

                or Inter_ref_04_08 or Inter_ref_05_08 or Inter_ref_06_08 or Inter_ref_07_08

                or Inter_ref_08_08 or Inter_ref_09_08 or Inter_ref_10_08 or Inter_ref_11_08 or Inter_ref_12_08

                or Inter_ref_00_04 or Inter_ref_01_04 or Inter_ref_02_04 or Inter_ref_03_04

                or Inter_ref_04_04 or Inter_ref_05_04 or Inter_ref_06_04 or Inter_ref_07_04

                or Inter_ref_08_04 or Inter_ref_09_04 or Inter_ref_10_04 or Inter_ref_11_04 or Inter_ref_12_04

                or Inter_ref_00_05 or Inter_ref_01_05 or Inter_ref_02_05 or Inter_ref_03_05

                or Inter_ref_04_05 or Inter_ref_05_05 or Inter_ref_06_05 or Inter_ref_07_05

                or Inter_ref_08_05 or Inter_ref_09_05 or Inter_ref_10_05 or Inter_ref_11_05 or Inter_ref_12_05

                or Inter_ref_00_10 or Inter_ref_01_10 or Inter_ref_02_10 or Inter_ref_03_10

                or Inter_ref_04_10 or Inter_ref_05_10 or Inter_ref_06_10 or Inter_ref_07_10

                or Inter_ref_08_10 or Inter_ref_09_10 or Inter_ref_10_10 or Inter_ref_11_10 or Inter_ref_12_10

                or Inter_ref_00_11 or Inter_ref_01_11 or Inter_ref_02_11 or Inter_ref_03_11

                or Inter_ref_04_11 or Inter_ref_05_11 or Inter_ref_06_11 or Inter_ref_07_11

                or Inter_ref_08_11 or Inter_ref_09_11 or Inter_ref_10_11 or Inter_ref_11_11 or Inter_ref_12_11

                or Inter_ref_00_12 or Inter_ref_01_12 or Inter_ref_02_12 or Inter_ref_03_12

                or Inter_ref_04_12 or Inter_ref_05_12 or Inter_ref_06_12 or Inter_ref_07_12

                or Inter_ref_08_12 or Inter_ref_09_12 or Inter_ref_10_12 or Inter_ref_11_12 or Inter_ref_12_12

                )

                case ({Is_blk4x4_0,Is_blk4x4_1,Is_blk4x4_2,Is_blk4x4_3})

                        4'b1000: //Left top blk4x4

                        case (Inter_H_window_counter0)

                                3'd4:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_00_00;Inter_H_window_1_0 <= Inter_ref_01_00;

                                        Inter_H_window_2_0 <= Inter_ref_02_00;Inter_H_window_3_0 <= Inter_ref_03_00;

                                        Inter_H_window_4_0 <= Inter_ref_04_00;Inter_H_window_5_0 <= Inter_ref_05_00;

                                        Inter_H_window_0_1 <= Inter_ref_00_01;Inter_H_window_1_1 <= Inter_ref_01_01;

                                        Inter_H_window_2_1 <= Inter_ref_02_01;Inter_H_window_3_1 <= Inter_ref_03_01;

                                        Inter_H_window_4_1 <= Inter_ref_04_01;Inter_H_window_5_1 <= Inter_ref_05_01;

                                        Inter_H_window_0_6 <= Inter_ref_00_06;Inter_H_window_1_6 <= Inter_ref_01_06;

                                        Inter_H_window_2_6 <= Inter_ref_02_06;Inter_H_window_3_6 <= Inter_ref_03_06;

                                        Inter_H_window_4_6 <= Inter_ref_04_06;Inter_H_window_5_6 <= Inter_ref_05_06;

                                        Inter_H_window_0_7 <= Inter_ref_00_07;Inter_H_window_1_7 <= Inter_ref_01_07;

                                        Inter_H_window_2_7 <= Inter_ref_02_07;Inter_H_window_3_7 <= Inter_ref_03_07;

                                        Inter_H_window_4_7 <= Inter_ref_04_07;Inter_H_window_5_7 <= Inter_ref_05_07;

                                        Inter_H_window_0_8 <= Inter_ref_00_08;Inter_H_window_1_8 <= Inter_ref_01_08;

                                        Inter_H_window_2_8 <= Inter_ref_02_08;Inter_H_window_3_8 <= Inter_ref_03_08;

                                        Inter_H_window_4_8 <= Inter_ref_04_08;Inter_H_window_5_8 <= Inter_ref_05_08;

                                end

                                3'd3:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_01_00;Inter_H_window_1_0 <= Inter_ref_02_00;

                                        Inter_H_window_2_0 <= Inter_ref_03_00;Inter_H_window_3_0 <= Inter_ref_04_00;

                                        Inter_H_window_4_0 <= Inter_ref_05_00;Inter_H_window_5_0 <= Inter_ref_06_00;

                                        Inter_H_window_0_1 <= Inter_ref_01_01;Inter_H_window_1_1 <= Inter_ref_02_01;

                                        Inter_H_window_2_1 <= Inter_ref_03_01;Inter_H_window_3_1 <= Inter_ref_04_01;

                                        Inter_H_window_4_1 <= Inter_ref_05_01;Inter_H_window_5_1 <= Inter_ref_06_01;

                                        Inter_H_window_0_6 <= Inter_ref_01_06;Inter_H_window_1_6 <= Inter_ref_02_06;

                                        Inter_H_window_2_6 <= Inter_ref_03_06;Inter_H_window_3_6 <= Inter_ref_04_06;

                                        Inter_H_window_4_6 <= Inter_ref_05_06;Inter_H_window_5_6 <= Inter_ref_06_06;

                                        Inter_H_window_0_7 <= Inter_ref_01_07;Inter_H_window_1_7 <= Inter_ref_02_07;

                                        Inter_H_window_2_7 <= Inter_ref_03_07;Inter_H_window_3_7 <= Inter_ref_04_07;

                                        Inter_H_window_4_7 <= Inter_ref_05_07;Inter_H_window_5_7 <= Inter_ref_06_07;

                                        Inter_H_window_0_8 <= Inter_ref_01_08;Inter_H_window_1_8 <= Inter_ref_02_08;

                                        Inter_H_window_2_8 <= Inter_ref_03_08;Inter_H_window_3_8 <= Inter_ref_04_08;

                                        Inter_H_window_4_8 <= Inter_ref_05_08;Inter_H_window_5_8 <= Inter_ref_06_08;

                                end

                                3'd2:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_02_00;Inter_H_window_1_0 <= Inter_ref_03_00;

                                        Inter_H_window_2_0 <= Inter_ref_04_00;Inter_H_window_3_0 <= Inter_ref_05_00;

                                        Inter_H_window_4_0 <= Inter_ref_06_00;Inter_H_window_5_0 <= Inter_ref_07_00;

                                        Inter_H_window_0_1 <= Inter_ref_02_01;Inter_H_window_1_1 <= Inter_ref_03_01;

                                        Inter_H_window_2_1 <= Inter_ref_04_01;Inter_H_window_3_1 <= Inter_ref_05_01;

                                        Inter_H_window_4_1 <= Inter_ref_06_01;Inter_H_window_5_1 <= Inter_ref_07_01;

                                        Inter_H_window_0_6 <= Inter_ref_02_06;Inter_H_window_1_6 <= Inter_ref_03_06;

                                        Inter_H_window_2_6 <= Inter_ref_04_06;Inter_H_window_3_6 <= Inter_ref_05_06;

                                        Inter_H_window_4_6 <= Inter_ref_06_06;Inter_H_window_5_6 <= Inter_ref_07_06;

                                        Inter_H_window_0_7 <= Inter_ref_02_07;Inter_H_window_1_7 <= Inter_ref_03_07;

                                        Inter_H_window_2_7 <= Inter_ref_04_07;Inter_H_window_3_7 <= Inter_ref_05_07;

                                        Inter_H_window_4_7 <= Inter_ref_06_07;Inter_H_window_5_7 <= Inter_ref_07_07;

                                        Inter_H_window_0_8 <= Inter_ref_02_08;Inter_H_window_1_8 <= Inter_ref_03_08;

                                        Inter_H_window_2_8 <= Inter_ref_04_08;Inter_H_window_3_8 <= Inter_ref_05_08;

                                        Inter_H_window_4_8 <= Inter_ref_06_08;Inter_H_window_5_8 <= Inter_ref_07_08;

                                end

                                3'd1:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_03_00;Inter_H_window_1_0 <= Inter_ref_04_00;

                                        Inter_H_window_2_0 <= Inter_ref_05_00;Inter_H_window_3_0 <= Inter_ref_06_00;

                                        Inter_H_window_4_0 <= Inter_ref_07_00;Inter_H_window_5_0 <= Inter_ref_08_00;

                                        Inter_H_window_0_1 <= Inter_ref_03_01;Inter_H_window_1_1 <= Inter_ref_04_01;

                                        Inter_H_window_2_1 <= Inter_ref_05_01;Inter_H_window_3_1 <= Inter_ref_06_01;

                                        Inter_H_window_4_1 <= Inter_ref_07_01;Inter_H_window_5_1 <= Inter_ref_08_01;

                                        Inter_H_window_0_6 <= Inter_ref_03_06;Inter_H_window_1_6 <= Inter_ref_04_06;

                                        Inter_H_window_2_6 <= Inter_ref_05_06;Inter_H_window_3_6 <= Inter_ref_06_06;

                                        Inter_H_window_4_6 <= Inter_ref_07_06;Inter_H_window_5_6 <= Inter_ref_08_06;

                                        Inter_H_window_0_7 <= Inter_ref_03_07;Inter_H_window_1_7 <= Inter_ref_04_07;

                                        Inter_H_window_2_7 <= Inter_ref_05_07;Inter_H_window_3_7 <= Inter_ref_06_07;

                                        Inter_H_window_4_7 <= Inter_ref_07_07;Inter_H_window_5_7 <= Inter_ref_08_07;

                                        Inter_H_window_0_8 <= Inter_ref_03_08;Inter_H_window_1_8 <= Inter_ref_04_08;

                                        Inter_H_window_2_8 <= Inter_ref_05_08;Inter_H_window_3_8 <= Inter_ref_06_08;

                                        Inter_H_window_4_8 <= Inter_ref_07_08;Inter_H_window_5_8 <= Inter_ref_08_08;

                                end

                                default:

                                begin

                                        Inter_H_window_0_0 <= 0;Inter_H_window_1_0 <= 0;Inter_H_window_2_0 <= 0;

                                        Inter_H_window_3_0 <= 0;Inter_H_window_4_0 <= 0;Inter_H_window_5_0 <= 0;

                                        Inter_H_window_0_1 <= 0;Inter_H_window_1_1 <= 0;Inter_H_window_2_1 <= 0;

                                        Inter_H_window_3_1 <= 0;Inter_H_window_4_1 <= 0;Inter_H_window_5_1 <= 0;

                                        Inter_H_window_0_6 <= 0;Inter_H_window_1_6 <= 0;Inter_H_window_2_6 <= 0;

                                        Inter_H_window_3_6 <= 0;Inter_H_window_4_6 <= 0;Inter_H_window_5_6 <= 0;

                                        Inter_H_window_0_7 <= 0;Inter_H_window_1_7 <= 0;Inter_H_window_2_7 <= 0;

                                        Inter_H_window_3_7 <= 0;Inter_H_window_4_7 <= 0;Inter_H_window_5_7 <= 0;

                                        Inter_H_window_0_8 <= 0;Inter_H_window_1_8 <= 0;Inter_H_window_2_8 <= 0;

                                        Inter_H_window_3_8 <= 0;Inter_H_window_4_8 <= 0;Inter_H_window_5_8 <= 0;

                                end

                        endcase

                        4'b0100: //Right top blk8x8

                        case (Inter_H_window_counter0)

                                3'd4:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_04_00;Inter_H_window_1_0 <= Inter_ref_05_00;

                                        Inter_H_window_2_0 <= Inter_ref_06_00;Inter_H_window_3_0 <= Inter_ref_07_00;

                                        Inter_H_window_4_0 <= Inter_ref_08_00;Inter_H_window_5_0 <= Inter_ref_09_00;

                                        Inter_H_window_0_1 <= Inter_ref_04_01;Inter_H_window_1_1 <= Inter_ref_05_01;

                                        Inter_H_window_2_1 <= Inter_ref_06_01;Inter_H_window_3_1 <= Inter_ref_07_01;

                                        Inter_H_window_4_1 <= Inter_ref_08_01;Inter_H_window_5_1 <= Inter_ref_09_01;

                                        Inter_H_window_0_6 <= Inter_ref_04_06;Inter_H_window_1_6 <= Inter_ref_05_06;

                                        Inter_H_window_2_6 <= Inter_ref_06_06;Inter_H_window_3_6 <= Inter_ref_07_06;

                                        Inter_H_window_4_6 <= Inter_ref_08_06;Inter_H_window_5_6 <= Inter_ref_09_06;

                                        Inter_H_window_0_7 <= Inter_ref_04_07;Inter_H_window_1_7 <= Inter_ref_05_07;

                                        Inter_H_window_2_7 <= Inter_ref_06_07;Inter_H_window_3_7 <= Inter_ref_07_07;

                                        Inter_H_window_4_7 <= Inter_ref_08_07;Inter_H_window_5_7 <= Inter_ref_09_07;

                                        Inter_H_window_0_8 <= Inter_ref_04_08;Inter_H_window_1_8 <= Inter_ref_05_08;

                                        Inter_H_window_2_8 <= Inter_ref_06_08;Inter_H_window_3_8 <= Inter_ref_07_08;

                                        Inter_H_window_4_8 <= Inter_ref_08_08;Inter_H_window_5_8 <= Inter_ref_09_08;

                                end

                                3'd3:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_05_00;Inter_H_window_1_0 <= Inter_ref_06_00;

                                        Inter_H_window_2_0 <= Inter_ref_07_00;Inter_H_window_3_0 <= Inter_ref_08_00;

                                        Inter_H_window_4_0 <= Inter_ref_09_00;Inter_H_window_5_0 <= Inter_ref_10_00;

                                        Inter_H_window_0_1 <= Inter_ref_05_01;Inter_H_window_1_1 <= Inter_ref_06_01;

                                        Inter_H_window_2_1 <= Inter_ref_07_01;Inter_H_window_3_1 <= Inter_ref_08_01;

                                        Inter_H_window_4_1 <= Inter_ref_09_01;Inter_H_window_5_1 <= Inter_ref_10_01;

                                        Inter_H_window_0_6 <= Inter_ref_05_06;Inter_H_window_1_6 <= Inter_ref_06_06;

                                        Inter_H_window_2_6 <= Inter_ref_07_06;Inter_H_window_3_6 <= Inter_ref_08_06;

                                        Inter_H_window_4_6 <= Inter_ref_09_06;Inter_H_window_5_6 <= Inter_ref_10_06;

                                        Inter_H_window_0_7 <= Inter_ref_05_07;Inter_H_window_1_7 <= Inter_ref_06_07;

                                        Inter_H_window_2_7 <= Inter_ref_07_07;Inter_H_window_3_7 <= Inter_ref_08_07;

                                        Inter_H_window_4_7 <= Inter_ref_09_07;Inter_H_window_5_7 <= Inter_ref_10_07;

                                        Inter_H_window_0_8 <= Inter_ref_05_08;Inter_H_window_1_8 <= Inter_ref_06_08;

                                        Inter_H_window_2_8 <= Inter_ref_07_08;Inter_H_window_3_8 <= Inter_ref_08_08;

                                        Inter_H_window_4_8 <= Inter_ref_09_08;Inter_H_window_5_8 <= Inter_ref_10_08;

                                end

                                3'd2:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_06_00;Inter_H_window_1_0 <= Inter_ref_07_00;

                                        Inter_H_window_2_0 <= Inter_ref_08_00;Inter_H_window_3_0 <= Inter_ref_09_00;

                                        Inter_H_window_4_0 <= Inter_ref_10_00;Inter_H_window_5_0 <= Inter_ref_11_00;

                                        Inter_H_window_0_1 <= Inter_ref_06_01;Inter_H_window_1_1 <= Inter_ref_07_01;

                                        Inter_H_window_2_1 <= Inter_ref_08_01;Inter_H_window_3_1 <= Inter_ref_09_01;

                                        Inter_H_window_4_1 <= Inter_ref_10_01;Inter_H_window_5_1 <= Inter_ref_11_01;

                                        Inter_H_window_0_6 <= Inter_ref_06_06;Inter_H_window_1_6 <= Inter_ref_07_06;

                                        Inter_H_window_2_6 <= Inter_ref_08_06;Inter_H_window_3_6 <= Inter_ref_09_06;

                                        Inter_H_window_4_6 <= Inter_ref_10_06;Inter_H_window_5_6 <= Inter_ref_11_06;

                                        Inter_H_window_0_7 <= Inter_ref_06_07;Inter_H_window_1_7 <= Inter_ref_07_07;

                                        Inter_H_window_2_7 <= Inter_ref_08_07;Inter_H_window_3_7 <= Inter_ref_09_07;

                                        Inter_H_window_4_7 <= Inter_ref_10_07;Inter_H_window_5_7 <= Inter_ref_11_07;

                                        Inter_H_window_0_8 <= Inter_ref_06_08;Inter_H_window_1_8 <= Inter_ref_07_08;

                                        Inter_H_window_2_8 <= Inter_ref_08_08;Inter_H_window_3_8 <= Inter_ref_09_08;

                                        Inter_H_window_4_8 <= Inter_ref_10_08;Inter_H_window_5_8 <= Inter_ref_11_08;

                                end

                                3'd1:

                                begin

                                        Inter_H_window_0_0 <= Inter_ref_07_00;Inter_H_window_1_0 <= Inter_ref_08_00;

                                        Inter_H_window_2_0 <= Inter_ref_09_00;Inter_H_window_3_0 <= Inter_ref_10_00;

                                        Inter_H_window_4_0 <= Inter_ref_11_00;Inter_H_window_5_0 <= Inter_ref_12_00;

                                        Inter_H_window_0_1 <= Inter_ref_07_01;Inter_H_window_1_1 <= Inter_ref_08_01;

                                        Inter_H_window_2_1 <= Inter_ref_09_01;Inter_H_window_3_1 <= Inter_ref_10_01;

                                        Inter_H_window_4_1 <= Inter_ref_11_01;Inter_H_window_5_1 <= Inter_ref_12_01;

                                        Inter_H_window_0_6 <= Inter_ref_07_06;Inter_H_window_1_6 <= Inter_ref_08_06;

                                        Inter_H_window_2_6 <= Inter_ref_09_06;Inter_H_window_3_6 <= Inter_ref_10_06;

                                        Inter_H_window_4_6 <= Inter_ref_11_06;Inter_H_window_5_6 <= Inter_ref_12_06;

                                        Inter_H_window_0_7 <= Inter_ref_07_07;Inter_H_window_1_7 <= Inter_ref_08_07;

                                        Inter_H_window_2_7 <= Inter_ref_09_07;Inter_H_window_3_7 <= Inter_ref_10_07;

                                        Inter_H_window_4_7 <= Inter_ref_11_07;Inter_H_window_5_7 <= Inter_ref_12_07;

                                        Inter_H_window_0_8 <= Inter_ref_07_08;Inter_H_window_1_8 <= Inter_ref_08_08;

                                        Inter_H_window_2_8 <= Inter_ref_09_08;Inter_H_window_3_8 <= Inter_ref_10_08;

                                        Inter_H_window_4_8 <= Inter_ref_11_08;Inter_H_window_5_8 <= Inter_ref_12_08;

                                end

                                default: