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//--------------------------------------------------------------------------------------------------
// Design    : nova
// Author(s) : Ke Xu
// Email           : eexuke@yahoo.com
// File      : DF_reg_ctrl.v
// Generated : Nov 27,2005
// Copyright (C) 2008 Ke Xu                
//-------------------------------------------------------------------------------------------------
// Description 
// buffer buf0 ~ buf3 & transpose reg t0 ~ t1 control
//-------------------------------------------------------------------------------------------------
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "nova_defines.v"
 
module DF_reg_ctrl (gclk_DF,reset_n,DF_edge_counter_MW,one_edge_counter_MW,
        mb_num_h_DF,mb_num_v_DF,q0_MW,q1_MW,q2_MW,q3_MW,p0_MW,p1_MW,p2_MW,p3_MW,
        buf0_0,buf0_1,buf0_2,buf0_3,buf1_0,buf1_1,buf1_2,buf1_3,
        buf2_0,buf2_1,buf2_2,buf2_3,buf3_0,buf3_1,buf3_2,buf3_3,
        t0_0,t0_1,t0_2,t0_3,t1_0,t1_1,t1_2,t1_3,t2_0,t2_1,t2_2,t2_3);
        input gclk_DF,reset_n;
        input [5:0] DF_edge_counter_MW;
        input [1:0] one_edge_counter_MW;
        input [3:0] mb_num_h_DF;
        input [3:0] mb_num_v_DF;
        input [7:0] q0_MW,q1_MW,q2_MW,q3_MW;
        input [7:0] p0_MW,p1_MW,p2_MW,p3_MW;
 
        output [31:0] buf0_0,buf0_1,buf0_2,buf0_3;
        output [31:0] buf1_0,buf1_1,buf1_2,buf1_3;
        output [31:0] buf2_0,buf2_1,buf2_2,buf2_3;
        output [31:0] buf3_0,buf3_1,buf3_2,buf3_3;
        output [31:0] t0_0,t0_1,t0_2,t0_3;
        output [31:0] t1_0,t1_1,t1_2,t1_3;
        output [31:0] t2_0,t2_1,t2_2,t2_3;
 
        reg [31:0] buf0_0,buf0_1,buf0_2,buf0_3;
        reg [31:0] buf1_0,buf1_1,buf1_2,buf1_3;
        reg [31:0] buf2_0,buf2_1,buf2_2,buf2_3;
        reg [31:0] buf3_0,buf3_1,buf3_2,buf3_3;
        reg [31:0] t0_0,t0_1,t0_2,t0_3;
        reg [31:0] t1_0,t1_1,t1_2,t1_3;
        reg [31:0] t2_0,t2_1,t2_2,t2_3;
        //------------------------------------------------------
        //buf0
        //------------------------------------------------------
        wire buf0_no_transpose; //buf0 updated without transpose
        wire buf0_transpose;            //buf0 updated after   transpose
        assign buf0_no_transpose = (
                DF_edge_counter_MW == 6'd0  || DF_edge_counter_MW == 6'd4  || DF_edge_counter_MW == 6'd6  ||
                DF_edge_counter_MW == 6'd12 || DF_edge_counter_MW == 6'd16 || DF_edge_counter_MW == 6'd20 ||
                DF_edge_counter_MW == 6'd22 || DF_edge_counter_MW == 6'd28 || DF_edge_counter_MW == 6'd32 ||
                DF_edge_counter_MW == 6'd36 || DF_edge_counter_MW == 6'd40 || DF_edge_counter_MW == 6'd44);
        assign buf0_transpose = (
                DF_edge_counter_MW == 6'd1  || DF_edge_counter_MW == 6'd5  || DF_edge_counter_MW == 6'd10 ||
                DF_edge_counter_MW == 6'd14 || DF_edge_counter_MW == 6'd17 || DF_edge_counter_MW == 6'd26 ||
                DF_edge_counter_MW == 6'd30 || DF_edge_counter_MW == 6'd33 || DF_edge_counter_MW == 6'd38 ||
                DF_edge_counter_MW == 6'd41 || DF_edge_counter_MW == 6'd46);
 
        always @ (posedge gclk_DF or negedge reset_n)
                if (reset_n == 1'b0)
                        begin
                                buf0_0 <= 0;     buf0_1 <= 0;     buf0_2 <= 0;     buf0_3 <= 0;
                        end
                //no transpose update,always "q" position (right or down of the edge to be filtered)
                else if (buf0_no_transpose)
                        case (one_edge_counter_MW)
                                2'd0:buf0_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd1:buf0_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd2:buf0_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd3:buf0_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                        endcase
                //transpose update,always "p" position (left or up of the edge to be filtered)
                else if (buf0_transpose)
                        case (one_edge_counter_MW)
                                2'd0:begin      buf0_0[7:0]   <= p3_MW;  buf0_1[7:0]   <= p2_MW;
                                                        buf0_2[7:0]   <= p1_MW;  buf0_3[7:0]   <= p0_MW;  end
                                2'd1:begin      buf0_0[15:8]  <= p3_MW; buf0_1[15:8]  <= p2_MW;
                                                        buf0_2[15:8]  <= p1_MW; buf0_3[15:8]  <= p0_MW; end
                                2'd2:begin      buf0_0[23:16] <= p3_MW; buf0_1[23:16] <= p2_MW;
                                                        buf0_2[23:16] <= p1_MW; buf0_3[23:16] <= p0_MW; end
                                2'd3:begin      buf0_0[31:24] <= p3_MW; buf0_1[31:24] <= p2_MW;
                                                        buf0_2[31:24] <= p1_MW; buf0_3[31:24] <= p0_MW; end
                        endcase
        //------------------------------------------------------
        //buf1
        //------------------------------------------------------
        wire buf1_no_transpose; //buf1 updated without transpose
        wire buf1_transpose;            //buf1 updated after   transpose
        wire buf1_transpose_p;  //buf1 transpose and buf1 stores "p" position pixels
        assign buf1_no_transpose = (
                DF_edge_counter_MW == 6'd1  || DF_edge_counter_MW == 6'd8  || DF_edge_counter_MW == 6'd13 ||
                DF_edge_counter_MW == 6'd17 || DF_edge_counter_MW == 6'd24 || DF_edge_counter_MW == 6'd29 ||
                DF_edge_counter_MW == 6'd37 || DF_edge_counter_MW == 6'd45);
        assign buf1_transpose = (
                DF_edge_counter_MW == 6'd6  || DF_edge_counter_MW == 6'd10 || DF_edge_counter_MW == 6'd22 ||
                DF_edge_counter_MW == 6'd26 || DF_edge_counter_MW == 6'd33 || DF_edge_counter_MW == 6'd41);
        assign buf1_transpose_p = (DF_edge_counter_MW == 6'd6  || DF_edge_counter_MW == 6'd9
                                                        || DF_edge_counter_MW == 6'd22);
        always @ (posedge gclk_DF or negedge reset_n)
                if (reset_n == 1'b0)
                        begin
                                buf1_0 <= 0;     buf1_1 <= 0;     buf1_2 <= 0;     buf1_3 <= 0;
                        end
                //no transpose update,always "q" position (right or down of the edge to be filtered)
                else if (buf1_no_transpose)
                        case (one_edge_counter_MW)
                                2'd0:buf1_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd1:buf1_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd2:buf1_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd3:buf1_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                        endcase
                //transpose update,"p":6/9/22,"q":10,26,33,41
                else if (buf1_transpose)
                        begin
                                if (buf1_transpose_p)   // edge 6,22  "p"
                                        case (one_edge_counter_MW)
                                                2'd0:begin      buf1_0[7:0]   <= p3_MW;  buf1_1[7:0]   <= p2_MW;
                                                                        buf1_2[7:0]   <= p1_MW;  buf1_3[7:0]   <= p0_MW;  end
                                                2'd1:begin      buf1_0[15:8]  <= p3_MW; buf1_1[15:8]  <= p2_MW;
                                                                        buf1_2[15:8]  <= p1_MW; buf1_3[15:8]  <= p0_MW; end
                                                2'd2:begin      buf1_0[23:16] <= p3_MW; buf1_1[23:16] <= p2_MW;
                                                                        buf1_2[23:16] <= p1_MW; buf1_3[23:16] <= p0_MW; end
                                                2'd3:begin      buf1_0[31:24] <= p3_MW; buf1_1[31:24] <= p2_MW;
                                                                        buf1_2[31:24] <= p1_MW; buf1_3[31:24] <= p0_MW; end
                                        endcase
                                else                                    //edge 10,26,33,41  "q"
                                        case (one_edge_counter_MW)
                                                2'd0:begin      buf1_0[7:0]   <= q0_MW;  buf1_1[7:0]   <= q1_MW;
                                                                        buf1_2[7:0]   <= q2_MW;  buf1_3[7:0]   <= q3_MW;  end
                                                2'd1:begin      buf1_0[15:8]  <= q0_MW; buf1_1[15:8]  <= q1_MW;
                                                                        buf1_2[15:8]  <= q2_MW; buf1_3[15:8]  <= q3_MW; end
                                                2'd2:begin      buf1_0[23:16] <= q0_MW; buf1_1[23:16] <= q1_MW;
                                                                        buf1_2[23:16] <= q2_MW; buf1_3[23:16] <= q3_MW; end
                                                2'd3:begin      buf1_0[31:24] <= q0_MW; buf1_1[31:24] <= q1_MW;
                                                                        buf1_2[31:24] <= q2_MW; buf1_3[31:24] <= q3_MW; end
                                        endcase
                        end
        //------------------------------------------------------
        //buf2
        //------------------------------------------------------
        wire buf2_no_transpose; //buf2 updated without transpose
        wire buf2_transpose;            //buf2 updated after   transpose
        wire buf2_transpose_p;  //buf2 transpose and buf2 stores "p" position pixels
        assign buf2_no_transpose = (
                DF_edge_counter_MW == 6'd2  || DF_edge_counter_MW == 6'd7  || DF_edge_counter_MW == 6'd18 ||
                DF_edge_counter_MW == 6'd23 || DF_edge_counter_MW == 6'd34 || DF_edge_counter_MW == 6'd42);
        assign buf2_transpose = (
                DF_edge_counter_MW == 6'd3  || DF_edge_counter_MW == 6'd11 || DF_edge_counter_MW == 6'd19 ||
                DF_edge_counter_MW == 6'd21 || DF_edge_counter_MW == 6'd27 || DF_edge_counter_MW == 6'd30 ||
                DF_edge_counter_MW == 6'd35 || DF_edge_counter_MW == 6'd38 || DF_edge_counter_MW == 6'd43 ||
                DF_edge_counter_MW == 6'd46);
        assign buf2_transpose_p = (DF_edge_counter_MW == 6'd3  || DF_edge_counter_MW == 6'd11
                                                        || DF_edge_counter_MW == 6'd19 || DF_edge_counter_MW == 6'd27
                                                        || DF_edge_counter_MW == 6'd35 || DF_edge_counter_MW == 6'd43);
        always @ (posedge gclk_DF or negedge reset_n)
                if (reset_n == 1'b0)
                        begin
                                buf2_0 <= 0;     buf2_1 <= 0;     buf2_2 <= 0;     buf2_3 <= 0;
                        end
                //no transpose update,always "q" position (right or down of the edge to be filtered)
                else if (buf2_no_transpose)
                        case (one_edge_counter_MW)
                                2'd0:buf2_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd1:buf2_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd2:buf2_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd3:buf2_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                        endcase
                //transpose update,"p":3,11,19,27,35,43  "q":21,30,38,46
                else if (buf2_transpose)
                        begin
                                if (buf2_transpose_p)   //"p":3,11,19,27,35,43
                                        case (one_edge_counter_MW)
                                                2'd0:begin      buf2_0[7:0]   <= p3_MW;  buf2_1[7:0]   <= p2_MW;
                                                                        buf2_2[7:0]   <= p1_MW;  buf2_3[7:0]   <= p0_MW;  end
                                                2'd1:begin      buf2_0[15:8]  <= p3_MW; buf2_1[15:8]  <= p2_MW;
                                                                        buf2_2[15:8]  <= p1_MW; buf2_3[15:8]  <= p0_MW; end
                                                2'd2:begin      buf2_0[23:16] <= p3_MW; buf2_1[23:16] <= p2_MW;
                                                                        buf2_2[23:16] <= p1_MW; buf2_3[23:16] <= p0_MW; end
                                                2'd3:begin      buf2_0[31:24] <= p3_MW; buf2_1[31:24] <= p2_MW;
                                                                        buf2_2[31:24] <= p1_MW; buf2_3[31:24] <= p0_MW; end
                                        endcase
                                else                                    //"q":21,30,38,46
                                        case (one_edge_counter_MW)
                                                2'd0:begin      buf2_0[7:0]   <= q0_MW;  buf2_1[7:0]   <= q1_MW;
                                                                        buf2_2[7:0]   <= q2_MW;  buf2_3[7:0]   <= q3_MW;  end
                                                2'd1:begin      buf2_0[15:8]  <= q0_MW; buf2_1[15:8]  <= q1_MW;
                                                                        buf2_2[15:8]  <= q2_MW; buf2_3[15:8]  <= q3_MW; end
                                                2'd2:begin      buf2_0[23:16] <= q0_MW; buf2_1[23:16] <= q1_MW;
                                                                        buf2_2[23:16] <= q2_MW; buf2_3[23:16] <= q3_MW; end
                                                2'd3:begin      buf2_0[31:24] <= q0_MW; buf2_1[31:24] <= q1_MW;
                                                                        buf2_2[31:24] <= q2_MW; buf2_3[31:24] <= q3_MW; end
                                        endcase
                        end
        //------------------------------------------------------
        //buf3
        //------------------------------------------------------
        wire buf3_no_transpose; //buf3 updated without transpose
        wire buf3_transpose;            //buf3 updated after   transpose
        wire buf3_transpose_p;  //buf3 transpose and buf1 stores "p" position pixels
        assign buf3_no_transpose = (DF_edge_counter_MW == 6'd3  || DF_edge_counter_MW == 6'd19);
        assign buf3_transpose = (       DF_edge_counter_MW == 6'd7  ||
                DF_edge_counter_MW == 6'd11 || DF_edge_counter_MW == 6'd23 || DF_edge_counter_MW == 6'd27 ||
                DF_edge_counter_MW == 6'd25 || DF_edge_counter_MW == 6'd35 || DF_edge_counter_MW == 6'd43);
        assign buf3_transpose_p = (DF_edge_counter_MW == 6'd7  || DF_edge_counter_MW == 6'd23);
        always @ (posedge gclk_DF or negedge reset_n)
                if (reset_n == 1'b0)
                        begin
                                buf3_0 <= 0;     buf3_1 <= 0;     buf3_2 <= 0;     buf3_3 <= 0;
                        end
                //no transpose update,always "q" position (right or down of the edge to be filtered)
                else if (buf3_no_transpose)
                        case (one_edge_counter_MW)
                                2'd0:buf3_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd1:buf3_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd2:buf3_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                                2'd3:buf3_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};
                        endcase
                //transpose update,"p":7,23  "q":11,25,27,35,43
                else if (buf3_transpose)
                        begin
                                if (buf3_transpose_p)   //"p":7,23
                                        case (one_edge_counter_MW)
                                                2'd0:begin      buf3_0[7:0]   <= p3_MW;  buf3_1[7:0]   <= p2_MW;
                                                                        buf3_2[7:0]   <= p1_MW;  buf3_3[7:0]   <= p0_MW;  end
                                                2'd1:begin      buf3_0[15:8]  <= p3_MW; buf3_1[15:8]  <= p2_MW;
                                                                        buf3_2[15:8]  <= p1_MW; buf3_3[15:8]  <= p0_MW; end
                                                2'd2:begin      buf3_0[23:16] <= p3_MW; buf3_1[23:16] <= p2_MW;
                                                                        buf3_2[23:16] <= p1_MW; buf3_3[23:16] <= p0_MW; end
                                                2'd3:begin      buf3_0[31:24] <= p3_MW; buf3_1[31:24] <= p2_MW;
                                                                        buf3_2[31:24] <= p1_MW; buf3_3[31:24] <= p0_MW; end
                                        endcase
                                else                                    //"q":11,25,35,43
                                        case (one_edge_counter_MW)
                                                2'd0:begin      buf3_0[7:0]   <= q0_MW;  buf3_1[7:0]   <= q1_MW;
                                                                        buf3_2[7:0]   <= q2_MW;  buf3_3[7:0]   <= q3_MW;  end
                                                2'd1:begin      buf3_0[15:8]  <= q0_MW; buf3_1[15:8]  <= q1_MW;
                                                                        buf3_2[15:8]  <= q2_MW; buf3_3[15:8]  <= q3_MW; end
                                                2'd2:begin      buf3_0[23:16] <= q0_MW; buf3_1[23:16] <= q1_MW;
                                                                        buf3_2[23:16] <= q2_MW; buf3_3[23:16] <= q3_MW; end
                                                2'd3:begin      buf3_0[31:24] <= q0_MW; buf3_1[31:24] <= q1_MW;
                                                                        buf3_2[31:24] <= q2_MW; buf3_3[31:24] <= q3_MW; end
                                        endcase
                        end
        //------------------------------------------------------
        //T0:always updated after transpose,always "p" position
        //------------------------------------------------------
        wire t0_transpose;              //t0 updated after transpose
        assign t0_transpose = (
        DF_edge_counter_MW == 6'd4  || DF_edge_counter_MW == 6'd8  || DF_edge_counter_MW == 6'd12 || DF_edge_counter_MW == 6'd36 ||
        DF_edge_counter_MW == 6'd44 || DF_edge_counter_MW == 6'd15 || DF_edge_counter_MW == 6'd20 || DF_edge_counter_MW == 6'd24 ||
        DF_edge_counter_MW == 6'd28 || DF_edge_counter_MW == 6'd31 || DF_edge_counter_MW == 6'd39 || DF_edge_counter_MW == 6'd47);
 
        always @ (posedge gclk_DF or negedge reset_n)
                if (reset_n == 1'b0)
                        begin
                                t0_0 <= 0;       t0_1 <= 0;       t0_2 <= 0;       t0_3 <= 0;
                        end
                //always transpose update for "p" position
                else if (t0_transpose)
                        case (one_edge_counter_MW)
                                2'd0:begin      t0_0[7:0]   <= p3_MW;    t0_1[7:0]   <= p2_MW;
                                                        t0_2[7:0]   <= p1_MW;    t0_3[7:0]   <= p0_MW;    end
                                2'd1:begin      t0_0[15:8]  <= p3_MW;   t0_1[15:8]  <= p2_MW;
                                                        t0_2[15:8]  <= p1_MW;   t0_3[15:8]  <= p0_MW;   end
                                2'd2:begin      t0_0[23:16] <= p3_MW;   t0_1[23:16] <= p2_MW;
                                                        t0_2[23:16] <= p1_MW;   t0_3[23:16] <= p0_MW;   end
                                2'd3:begin      t0_0[31:24] <= p3_MW;   t0_1[31:24] <= p2_MW;
                                                        t0_2[31:24] <= p1_MW;   t0_3[31:24] <= p0_MW;   end
                        endcase
        //------------------------------------------------------
        //T1:always updated after transpose
        //------------------------------------------------------
        wire t1_transpose;              //t1 updated after   transpose
        wire t1_transpose_q;    //t1 transpose and t1 stores "q" position pixels
        assign t1_transpose = (
        DF_edge_counter_MW == 6'd13 || DF_edge_counter_MW == 6'd37 || DF_edge_counter_MW == 6'd45 || DF_edge_counter_MW == 6'd9  ||
        DF_edge_counter_MW == 6'd21 || DF_edge_counter_MW == 6'd25 || DF_edge_counter_MW == 6'd29 || DF_edge_counter_MW == 6'd31 ||
        DF_edge_counter_MW == 6'd39 || DF_edge_counter_MW == 6'd47);
 
        assign t1_transpose_q = (DF_edge_counter_MW == 6'd31 || DF_edge_counter_MW == 6'd39 ||
                                                         DF_edge_counter_MW == 6'd47);
        always @ (posedge gclk_DF or negedge reset_n)
                if (reset_n == 1'b0)
                        begin
                                t1_0 <= 0;       t1_1 <= 0;       t1_2 <= 0;       t1_3 <= 0;
                        end
                else if (t1_transpose && !t1_transpose_q)       //t1 transpose "p"
                        case (one_edge_counter_MW)
                                2'd0:begin      t1_0[7:0]   <= p3_MW;    t1_1[7:0]   <= p2_MW;
                                                        t1_2[7:0]   <= p1_MW;    t1_3[7:0]   <= p0_MW;    end
                                2'd1:begin      t1_0[15:8]  <= p3_MW;   t1_1[15:8]  <= p2_MW;
                                                        t1_2[15:8]  <= p1_MW;   t1_3[15:8]  <= p0_MW;   end
                                2'd2:begin      t1_0[23:16] <= p3_MW;   t1_1[23:16] <= p2_MW;
                                                        t1_2[23:16] <= p1_MW;   t1_3[23:16] <= p0_MW;   end
                                2'd3:begin      t1_0[31:24] <= p3_MW;   t1_1[31:24] <= p2_MW;
                                                        t1_2[31:24] <= p1_MW;   t1_3[31:24] <= p0_MW;   end
                        endcase
                else if (t1_transpose)                                          //t1 transpose "q"
                        case (one_edge_counter_MW)
                                2'd0:begin      t1_0[7:0]   <= q0_MW;    t1_1[7:0]   <= q1_MW;
                                                        t1_2[7:0]   <= q2_MW;    t1_3[7:0]   <= q3_MW;    end
                                2'd1:begin      t1_0[15:8]  <= q0_MW;   t1_1[15:8]  <= q1_MW;
                                                        t1_2[15:8]  <= q2_MW;   t1_3[15:8]  <= q3_MW;   end
                                2'd2:begin      t1_0[23:16] <= q0_MW;   t1_1[23:16] <= q1_MW;
                                                        t1_2[23:16] <= q2_MW;   t1_3[23:16] <= q3_MW;   end
                                2'd3:begin      t1_0[31:24] <= q0_MW;   t1_1[31:24] <= q1_MW;
                                                        t1_2[31:24] <= q2_MW;   t1_3[31:24] <= q3_MW;   end
                        endcase
        //--------------------------------------------------------------------
        //T2:only used after filter edge 18/34/42 to update mbAddrB of left MB
        //-------------------------------------------------------------------- 
        wire t2_wr;
        assign t2_wr = ((mb_num_h_DF != 0 && mb_num_v_DF != 4'd8) &&
        (DF_edge_counter_MW == 6'd18 || DF_edge_counter_MW == 6'd34 || DF_edge_counter_MW == 6'd42));
        always @ (posedge gclk_DF or negedge reset_n)
                if (reset_n == 1'b0)
                        begin
                                t2_0 <= 0;       t2_1 <= 0;       t2_2 <= 0;       t2_3 <= 0;
                        end
                else if (t2_wr)
                        case (one_edge_counter_MW)
                                2'd0:begin      t2_0[7:0]   <= p3_MW;    t2_1[7:0]   <= p2_MW;
                                                        t2_2[7:0]   <= p1_MW;    t2_3[7:0]   <= p0_MW;    end
                                2'd1:begin      t2_0[15:8]  <= p3_MW;   t2_1[15:8]  <= p2_MW;
                                                        t2_2[15:8]  <= p1_MW;   t2_3[15:8]  <= p0_MW;   end
                                2'd2:begin      t2_0[23:16] <= p3_MW;   t2_1[23:16] <= p2_MW;
                                                        t2_2[23:16] <= p1_MW;   t2_3[23:16] <= p0_MW;   end
                                2'd3:begin      t2_0[31:24] <= p3_MW;   t2_1[31:24] <= p2_MW;
                                                        t2_2[31:24] <= p1_MW;   t2_3[31:24] <= p0_MW;   end
                        endcase
endmodule
 

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[/] [nova/] [trunk/] [src/] [DF_reg_ctrl.v] - Blame information for rev 11

Line No.	Rev	Author	Line
1	10	eexuke	`//--------------------------------------------------------------------------------------------------`
2			`// Design : nova`
3			`// Author(s) : Ke Xu`
4			`// Email : eexuke@yahoo.com`
5			`// File : DF_reg_ctrl.v`
6			`// Generated : Nov 27,2005`
7			`// Copyright (C) 2008 Ke Xu`
8			`//-------------------------------------------------------------------------------------------------`
9			`// Description`
10			`// buffer buf0 ~ buf3 & transpose reg t0 ~ t1 control`
11			`//-------------------------------------------------------------------------------------------------`
12
13			`// synopsys translate_off`
14			`include "timescale.v"
15			`// synopsys translate_on`
16			`include "nova_defines.v"
17
18			`module DF_reg_ctrl (gclk_DF,reset_n,DF_edge_counter_MW,one_edge_counter_MW,`
19			`mb_num_h_DF,mb_num_v_DF,q0_MW,q1_MW,q2_MW,q3_MW,p0_MW,p1_MW,p2_MW,p3_MW,`
20			`buf0_0,buf0_1,buf0_2,buf0_3,buf1_0,buf1_1,buf1_2,buf1_3,`
21			`buf2_0,buf2_1,buf2_2,buf2_3,buf3_0,buf3_1,buf3_2,buf3_3,`
22			`t0_0,t0_1,t0_2,t0_3,t1_0,t1_1,t1_2,t1_3,t2_0,t2_1,t2_2,t2_3);`
23			`input gclk_DF,reset_n;`
24			`input [5:0] DF_edge_counter_MW;`
25			`input [1:0] one_edge_counter_MW;`
26			`input [3:0] mb_num_h_DF;`
27			`input [3:0] mb_num_v_DF;`
28			`input [7:0] q0_MW,q1_MW,q2_MW,q3_MW;`
29			`input [7:0] p0_MW,p1_MW,p2_MW,p3_MW;`
30
31			`output [31:0] buf0_0,buf0_1,buf0_2,buf0_3;`
32			`output [31:0] buf1_0,buf1_1,buf1_2,buf1_3;`
33			`output [31:0] buf2_0,buf2_1,buf2_2,buf2_3;`
34			`output [31:0] buf3_0,buf3_1,buf3_2,buf3_3;`
35			`output [31:0] t0_0,t0_1,t0_2,t0_3;`
36			`output [31:0] t1_0,t1_1,t1_2,t1_3;`
37			`output [31:0] t2_0,t2_1,t2_2,t2_3;`
38
39			`reg [31:0] buf0_0,buf0_1,buf0_2,buf0_3;`
40			`reg [31:0] buf1_0,buf1_1,buf1_2,buf1_3;`
41			`reg [31:0] buf2_0,buf2_1,buf2_2,buf2_3;`
42			`reg [31:0] buf3_0,buf3_1,buf3_2,buf3_3;`
43			`reg [31:0] t0_0,t0_1,t0_2,t0_3;`
44			`reg [31:0] t1_0,t1_1,t1_2,t1_3;`
45			`reg [31:0] t2_0,t2_1,t2_2,t2_3;`
46			`//------------------------------------------------------`
47			`//buf0`
48			`//------------------------------------------------------`
49			`wire buf0_no_transpose; //buf0 updated without transpose`
50			`wire buf0_transpose; //buf0 updated after transpose`
51			`assign buf0_no_transpose = (`
52			`DF_edge_counter_MW == 6'd0 \|\| DF_edge_counter_MW == 6'd4 \|\| DF_edge_counter_MW == 6'd6 \|\|`
53			`DF_edge_counter_MW == 6'd12 \|\| DF_edge_counter_MW == 6'd16 \|\| DF_edge_counter_MW == 6'd20 \|\|`
54			`DF_edge_counter_MW == 6'd22 \|\| DF_edge_counter_MW == 6'd28 \|\| DF_edge_counter_MW == 6'd32 \|\|`
55			`DF_edge_counter_MW == 6'd36 \|\| DF_edge_counter_MW == 6'd40 \|\| DF_edge_counter_MW == 6'd44);`
56			`assign buf0_transpose = (`
57			`DF_edge_counter_MW == 6'd1 \|\| DF_edge_counter_MW == 6'd5 \|\| DF_edge_counter_MW == 6'd10 \|\|`
58			`DF_edge_counter_MW == 6'd14 \|\| DF_edge_counter_MW == 6'd17 \|\| DF_edge_counter_MW == 6'd26 \|\|`
59			`DF_edge_counter_MW == 6'd30 \|\| DF_edge_counter_MW == 6'd33 \|\| DF_edge_counter_MW == 6'd38 \|\|`
60			`DF_edge_counter_MW == 6'd41 \|\| DF_edge_counter_MW == 6'd46);`
61
62			`always @ (posedge gclk_DF or negedge reset_n)`
63			`if (reset_n == 1'b0)`
64			`begin`
65			`buf0_0 <= 0; buf0_1 <= 0; buf0_2 <= 0; buf0_3 <= 0;`
66			`end`
67			`//no transpose update,always "q" position (right or down of the edge to be filtered)`
68			`else if (buf0_no_transpose)`
69			`case (one_edge_counter_MW)`
70			`2'd0:buf0_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
71			`2'd1:buf0_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
72			`2'd2:buf0_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
73			`2'd3:buf0_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
74			`endcase`
75			`//transpose update,always "p" position (left or up of the edge to be filtered)`
76			`else if (buf0_transpose)`
77			`case (one_edge_counter_MW)`
78			`2'd0:begin buf0_0[7:0] <= p3_MW; buf0_1[7:0] <= p2_MW;`
79			`buf0_2[7:0] <= p1_MW; buf0_3[7:0] <= p0_MW; end`
80			`2'd1:begin buf0_0[15:8] <= p3_MW; buf0_1[15:8] <= p2_MW;`
81			`buf0_2[15:8] <= p1_MW; buf0_3[15:8] <= p0_MW; end`
82			`2'd2:begin buf0_0[23:16] <= p3_MW; buf0_1[23:16] <= p2_MW;`
83			`buf0_2[23:16] <= p1_MW; buf0_3[23:16] <= p0_MW; end`
84			`2'd3:begin buf0_0[31:24] <= p3_MW; buf0_1[31:24] <= p2_MW;`
85			`buf0_2[31:24] <= p1_MW; buf0_3[31:24] <= p0_MW; end`
86			`endcase`
87			`//------------------------------------------------------`
88			`//buf1`
89			`//------------------------------------------------------`
90			`wire buf1_no_transpose; //buf1 updated without transpose`
91			`wire buf1_transpose; //buf1 updated after transpose`
92			`wire buf1_transpose_p; //buf1 transpose and buf1 stores "p" position pixels`
93			`assign buf1_no_transpose = (`
94			`DF_edge_counter_MW == 6'd1 \|\| DF_edge_counter_MW == 6'd8 \|\| DF_edge_counter_MW == 6'd13 \|\|`
95			`DF_edge_counter_MW == 6'd17 \|\| DF_edge_counter_MW == 6'd24 \|\| DF_edge_counter_MW == 6'd29 \|\|`
96			`DF_edge_counter_MW == 6'd37 \|\| DF_edge_counter_MW == 6'd45);`
97			`assign buf1_transpose = (`
98			`DF_edge_counter_MW == 6'd6 \|\| DF_edge_counter_MW == 6'd10 \|\| DF_edge_counter_MW == 6'd22 \|\|`
99			`DF_edge_counter_MW == 6'd26 \|\| DF_edge_counter_MW == 6'd33 \|\| DF_edge_counter_MW == 6'd41);`
100			`assign buf1_transpose_p = (DF_edge_counter_MW == 6'd6 \|\| DF_edge_counter_MW == 6'd9`
101			`\|\| DF_edge_counter_MW == 6'd22);`
102			`always @ (posedge gclk_DF or negedge reset_n)`
103			`if (reset_n == 1'b0)`
104			`begin`
105			`buf1_0 <= 0; buf1_1 <= 0; buf1_2 <= 0; buf1_3 <= 0;`
106			`end`
107			`//no transpose update,always "q" position (right or down of the edge to be filtered)`
108			`else if (buf1_no_transpose)`
109			`case (one_edge_counter_MW)`
110			`2'd0:buf1_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
111			`2'd1:buf1_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
112			`2'd2:buf1_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
113			`2'd3:buf1_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
114			`endcase`
115			`//transpose update,"p":6/9/22,"q":10,26,33,41`
116			`else if (buf1_transpose)`
117			`begin`
118			`if (buf1_transpose_p) // edge 6,22 "p"`
119			`case (one_edge_counter_MW)`
120			`2'd0:begin buf1_0[7:0] <= p3_MW; buf1_1[7:0] <= p2_MW;`
121			`buf1_2[7:0] <= p1_MW; buf1_3[7:0] <= p0_MW; end`
122			`2'd1:begin buf1_0[15:8] <= p3_MW; buf1_1[15:8] <= p2_MW;`
123			`buf1_2[15:8] <= p1_MW; buf1_3[15:8] <= p0_MW; end`
124			`2'd2:begin buf1_0[23:16] <= p3_MW; buf1_1[23:16] <= p2_MW;`
125			`buf1_2[23:16] <= p1_MW; buf1_3[23:16] <= p0_MW; end`
126			`2'd3:begin buf1_0[31:24] <= p3_MW; buf1_1[31:24] <= p2_MW;`
127			`buf1_2[31:24] <= p1_MW; buf1_3[31:24] <= p0_MW; end`
128			`endcase`
129			`else //edge 10,26,33,41 "q"`
130			`case (one_edge_counter_MW)`
131			`2'd0:begin buf1_0[7:0] <= q0_MW; buf1_1[7:0] <= q1_MW;`
132			`buf1_2[7:0] <= q2_MW; buf1_3[7:0] <= q3_MW; end`
133			`2'd1:begin buf1_0[15:8] <= q0_MW; buf1_1[15:8] <= q1_MW;`
134			`buf1_2[15:8] <= q2_MW; buf1_3[15:8] <= q3_MW; end`
135			`2'd2:begin buf1_0[23:16] <= q0_MW; buf1_1[23:16] <= q1_MW;`
136			`buf1_2[23:16] <= q2_MW; buf1_3[23:16] <= q3_MW; end`
137			`2'd3:begin buf1_0[31:24] <= q0_MW; buf1_1[31:24] <= q1_MW;`
138			`buf1_2[31:24] <= q2_MW; buf1_3[31:24] <= q3_MW; end`
139			`endcase`
140			`end`
141			`//------------------------------------------------------`
142			`//buf2`
143			`//------------------------------------------------------`
144			`wire buf2_no_transpose; //buf2 updated without transpose`
145			`wire buf2_transpose; //buf2 updated after transpose`
146			`wire buf2_transpose_p; //buf2 transpose and buf2 stores "p" position pixels`
147			`assign buf2_no_transpose = (`
148			`DF_edge_counter_MW == 6'd2 \|\| DF_edge_counter_MW == 6'd7 \|\| DF_edge_counter_MW == 6'd18 \|\|`
149			`DF_edge_counter_MW == 6'd23 \|\| DF_edge_counter_MW == 6'd34 \|\| DF_edge_counter_MW == 6'd42);`
150			`assign buf2_transpose = (`
151			`DF_edge_counter_MW == 6'd3 \|\| DF_edge_counter_MW == 6'd11 \|\| DF_edge_counter_MW == 6'd19 \|\|`
152			`DF_edge_counter_MW == 6'd21 \|\| DF_edge_counter_MW == 6'd27 \|\| DF_edge_counter_MW == 6'd30 \|\|`
153			`DF_edge_counter_MW == 6'd35 \|\| DF_edge_counter_MW == 6'd38 \|\| DF_edge_counter_MW == 6'd43 \|\|`
154			`DF_edge_counter_MW == 6'd46);`
155			`assign buf2_transpose_p = (DF_edge_counter_MW == 6'd3 \|\| DF_edge_counter_MW == 6'd11`
156			`\|\| DF_edge_counter_MW == 6'd19 \|\| DF_edge_counter_MW == 6'd27`
157			`\|\| DF_edge_counter_MW == 6'd35 \|\| DF_edge_counter_MW == 6'd43);`
158			`always @ (posedge gclk_DF or negedge reset_n)`
159			`if (reset_n == 1'b0)`
160			`begin`
161			`buf2_0 <= 0; buf2_1 <= 0; buf2_2 <= 0; buf2_3 <= 0;`
162			`end`
163			`//no transpose update,always "q" position (right or down of the edge to be filtered)`
164			`else if (buf2_no_transpose)`
165			`case (one_edge_counter_MW)`
166			`2'd0:buf2_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
167			`2'd1:buf2_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
168			`2'd2:buf2_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
169			`2'd3:buf2_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
170			`endcase`
171			`//transpose update,"p":3,11,19,27,35,43 "q":21,30,38,46`
172			`else if (buf2_transpose)`
173			`begin`
174			`if (buf2_transpose_p) //"p":3,11,19,27,35,43`
175			`case (one_edge_counter_MW)`
176			`2'd0:begin buf2_0[7:0] <= p3_MW; buf2_1[7:0] <= p2_MW;`
177			`buf2_2[7:0] <= p1_MW; buf2_3[7:0] <= p0_MW; end`
178			`2'd1:begin buf2_0[15:8] <= p3_MW; buf2_1[15:8] <= p2_MW;`
179			`buf2_2[15:8] <= p1_MW; buf2_3[15:8] <= p0_MW; end`
180			`2'd2:begin buf2_0[23:16] <= p3_MW; buf2_1[23:16] <= p2_MW;`
181			`buf2_2[23:16] <= p1_MW; buf2_3[23:16] <= p0_MW; end`
182			`2'd3:begin buf2_0[31:24] <= p3_MW; buf2_1[31:24] <= p2_MW;`
183			`buf2_2[31:24] <= p1_MW; buf2_3[31:24] <= p0_MW; end`
184			`endcase`
185			`else //"q":21,30,38,46`
186			`case (one_edge_counter_MW)`
187			`2'd0:begin buf2_0[7:0] <= q0_MW; buf2_1[7:0] <= q1_MW;`
188			`buf2_2[7:0] <= q2_MW; buf2_3[7:0] <= q3_MW; end`
189			`2'd1:begin buf2_0[15:8] <= q0_MW; buf2_1[15:8] <= q1_MW;`
190			`buf2_2[15:8] <= q2_MW; buf2_3[15:8] <= q3_MW; end`
191			`2'd2:begin buf2_0[23:16] <= q0_MW; buf2_1[23:16] <= q1_MW;`
192			`buf2_2[23:16] <= q2_MW; buf2_3[23:16] <= q3_MW; end`
193			`2'd3:begin buf2_0[31:24] <= q0_MW; buf2_1[31:24] <= q1_MW;`
194			`buf2_2[31:24] <= q2_MW; buf2_3[31:24] <= q3_MW; end`
195			`endcase`
196			`end`
197			`//------------------------------------------------------`
198			`//buf3`
199			`//------------------------------------------------------`
200			`wire buf3_no_transpose; //buf3 updated without transpose`
201			`wire buf3_transpose; //buf3 updated after transpose`
202			`wire buf3_transpose_p; //buf3 transpose and buf1 stores "p" position pixels`
203			`assign buf3_no_transpose = (DF_edge_counter_MW == 6'd3 \|\| DF_edge_counter_MW == 6'd19);`
204			`assign buf3_transpose = ( DF_edge_counter_MW == 6'd7 \|\|`
205			`DF_edge_counter_MW == 6'd11 \|\| DF_edge_counter_MW == 6'd23 \|\| DF_edge_counter_MW == 6'd27 \|\|`
206			`DF_edge_counter_MW == 6'd25 \|\| DF_edge_counter_MW == 6'd35 \|\| DF_edge_counter_MW == 6'd43);`
207			`assign buf3_transpose_p = (DF_edge_counter_MW == 6'd7 \|\| DF_edge_counter_MW == 6'd23);`
208			`always @ (posedge gclk_DF or negedge reset_n)`
209			`if (reset_n == 1'b0)`
210			`begin`
211			`buf3_0 <= 0; buf3_1 <= 0; buf3_2 <= 0; buf3_3 <= 0;`
212			`end`
213			`//no transpose update,always "q" position (right or down of the edge to be filtered)`
214			`else if (buf3_no_transpose)`
215			`case (one_edge_counter_MW)`
216			`2'd0:buf3_0 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
217			`2'd1:buf3_1 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
218			`2'd2:buf3_2 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
219			`2'd3:buf3_3 <= {q3_MW,q2_MW,q1_MW,q0_MW};`
220			`endcase`
221			`//transpose update,"p":7,23 "q":11,25,27,35,43`
222			`else if (buf3_transpose)`
223			`begin`
224			`if (buf3_transpose_p) //"p":7,23`
225			`case (one_edge_counter_MW)`
226			`2'd0:begin buf3_0[7:0] <= p3_MW; buf3_1[7:0] <= p2_MW;`
227			`buf3_2[7:0] <= p1_MW; buf3_3[7:0] <= p0_MW; end`
228			`2'd1:begin buf3_0[15:8] <= p3_MW; buf3_1[15:8] <= p2_MW;`
229			`buf3_2[15:8] <= p1_MW; buf3_3[15:8] <= p0_MW; end`
230			`2'd2:begin buf3_0[23:16] <= p3_MW; buf3_1[23:16] <= p2_MW;`
231			`buf3_2[23:16] <= p1_MW; buf3_3[23:16] <= p0_MW; end`
232			`2'd3:begin buf3_0[31:24] <= p3_MW; buf3_1[31:24] <= p2_MW;`
233			`buf3_2[31:24] <= p1_MW; buf3_3[31:24] <= p0_MW; end`
234			`endcase`
235			`else //"q":11,25,35,43`
236			`case (one_edge_counter_MW)`
237			`2'd0:begin buf3_0[7:0] <= q0_MW; buf3_1[7:0] <= q1_MW;`
238			`buf3_2[7:0] <= q2_MW; buf3_3[7:0] <= q3_MW; end`
239			`2'd1:begin buf3_0[15:8] <= q0_MW; buf3_1[15:8] <= q1_MW;`
240			`buf3_2[15:8] <= q2_MW; buf3_3[15:8] <= q3_MW; end`
241			`2'd2:begin buf3_0[23:16] <= q0_MW; buf3_1[23:16] <= q1_MW;`
242			`buf3_2[23:16] <= q2_MW; buf3_3[23:16] <= q3_MW; end`
243			`2'd3:begin buf3_0[31:24] <= q0_MW; buf3_1[31:24] <= q1_MW;`
244			`buf3_2[31:24] <= q2_MW; buf3_3[31:24] <= q3_MW; end`
245			`endcase`
246			`end`
247			`//------------------------------------------------------`
248			`//T0:always updated after transpose,always "p" position`
249			`//------------------------------------------------------`
250			`wire t0_transpose; //t0 updated after transpose`
251			`assign t0_transpose = (`
252			`DF_edge_counter_MW == 6'd4 \|\| DF_edge_counter_MW == 6'd8 \|\| DF_edge_counter_MW == 6'd12 \|\| DF_edge_counter_MW == 6'd36 \|\|`
253			`DF_edge_counter_MW == 6'd44 \|\| DF_edge_counter_MW == 6'd15 \|\| DF_edge_counter_MW == 6'd20 \|\| DF_edge_counter_MW == 6'd24 \|\|`
254			`DF_edge_counter_MW == 6'd28 \|\| DF_edge_counter_MW == 6'd31 \|\| DF_edge_counter_MW == 6'd39 \|\| DF_edge_counter_MW == 6'd47);`
255
256			`always @ (posedge gclk_DF or negedge reset_n)`
257			`if (reset_n == 1'b0)`
258			`begin`
259			`t0_0 <= 0; t0_1 <= 0; t0_2 <= 0; t0_3 <= 0;`
260			`end`
261			`//always transpose update for "p" position`
262			`else if (t0_transpose)`
263			`case (one_edge_counter_MW)`
264			`2'd0:begin t0_0[7:0] <= p3_MW; t0_1[7:0] <= p2_MW;`
265			`t0_2[7:0] <= p1_MW; t0_3[7:0] <= p0_MW; end`
266			`2'd1:begin t0_0[15:8] <= p3_MW; t0_1[15:8] <= p2_MW;`
267			`t0_2[15:8] <= p1_MW; t0_3[15:8] <= p0_MW; end`
268			`2'd2:begin t0_0[23:16] <= p3_MW; t0_1[23:16] <= p2_MW;`
269			`t0_2[23:16] <= p1_MW; t0_3[23:16] <= p0_MW; end`
270			`2'd3:begin t0_0[31:24] <= p3_MW; t0_1[31:24] <= p2_MW;`
271			`t0_2[31:24] <= p1_MW; t0_3[31:24] <= p0_MW; end`
272			`endcase`
273			`//------------------------------------------------------`
274			`//T1:always updated after transpose`
275			`//------------------------------------------------------`
276			`wire t1_transpose; //t1 updated after transpose`
277			`wire t1_transpose_q; //t1 transpose and t1 stores "q" position pixels`
278			`assign t1_transpose = (`
279			`DF_edge_counter_MW == 6'd13 \|\| DF_edge_counter_MW == 6'd37 \|\| DF_edge_counter_MW == 6'd45 \|\| DF_edge_counter_MW == 6'd9 \|\|`
280			`DF_edge_counter_MW == 6'd21 \|\| DF_edge_counter_MW == 6'd25 \|\| DF_edge_counter_MW == 6'd29 \|\| DF_edge_counter_MW == 6'd31 \|\|`
281			`DF_edge_counter_MW == 6'd39 \|\| DF_edge_counter_MW == 6'd47);`
282
283			`assign t1_transpose_q = (DF_edge_counter_MW == 6'd31 \|\| DF_edge_counter_MW == 6'd39 \|\|`
284			`DF_edge_counter_MW == 6'd47);`
285			`always @ (posedge gclk_DF or negedge reset_n)`
286			`if (reset_n == 1'b0)`
287			`begin`
288			`t1_0 <= 0; t1_1 <= 0; t1_2 <= 0; t1_3 <= 0;`
289			`end`
290			`else if (t1_transpose && !t1_transpose_q) //t1 transpose "p"`
291			`case (one_edge_counter_MW)`
292			`2'd0:begin t1_0[7:0] <= p3_MW; t1_1[7:0] <= p2_MW;`
293			`t1_2[7:0] <= p1_MW; t1_3[7:0] <= p0_MW; end`
294			`2'd1:begin t1_0[15:8] <= p3_MW; t1_1[15:8] <= p2_MW;`
295			`t1_2[15:8] <= p1_MW; t1_3[15:8] <= p0_MW; end`
296			`2'd2:begin t1_0[23:16] <= p3_MW; t1_1[23:16] <= p2_MW;`
297			`t1_2[23:16] <= p1_MW; t1_3[23:16] <= p0_MW; end`
298			`2'd3:begin t1_0[31:24] <= p3_MW; t1_1[31:24] <= p2_MW;`
299			`t1_2[31:24] <= p1_MW; t1_3[31:24] <= p0_MW; end`
300			`endcase`
301			`else if (t1_transpose) //t1 transpose "q"`
302			`case (one_edge_counter_MW)`
303			`2'd0:begin t1_0[7:0] <= q0_MW; t1_1[7:0] <= q1_MW;`
304			`t1_2[7:0] <= q2_MW; t1_3[7:0] <= q3_MW; end`
305			`2'd1:begin t1_0[15:8] <= q0_MW; t1_1[15:8] <= q1_MW;`
306			`t1_2[15:8] <= q2_MW; t1_3[15:8] <= q3_MW; end`
307			`2'd2:begin t1_0[23:16] <= q0_MW; t1_1[23:16] <= q1_MW;`
308			`t1_2[23:16] <= q2_MW; t1_3[23:16] <= q3_MW; end`
309			`2'd3:begin t1_0[31:24] <= q0_MW; t1_1[31:24] <= q1_MW;`
310			`t1_2[31:24] <= q2_MW; t1_3[31:24] <= q3_MW; end`
311			`endcase`
312			`//--------------------------------------------------------------------`
313			`//T2:only used after filter edge 18/34/42 to update mbAddrB of left MB`
314			`//--------------------------------------------------------------------`
315			`wire t2_wr;`
316			`assign t2_wr = ((mb_num_h_DF != 0 && mb_num_v_DF != 4'd8) &&`
317			`(DF_edge_counter_MW == 6'd18 \|\| DF_edge_counter_MW == 6'd34 \|\| DF_edge_counter_MW == 6'd42));`
318			`always @ (posedge gclk_DF or negedge reset_n)`
319			`if (reset_n == 1'b0)`
320			`begin`
321			`t2_0 <= 0; t2_1 <= 0; t2_2 <= 0; t2_3 <= 0;`
322			`end`
323			`else if (t2_wr)`
324			`case (one_edge_counter_MW)`
325			`2'd0:begin t2_0[7:0] <= p3_MW; t2_1[7:0] <= p2_MW;`
326			`t2_2[7:0] <= p1_MW; t2_3[7:0] <= p0_MW; end`
327			`2'd1:begin t2_0[15:8] <= p3_MW; t2_1[15:8] <= p2_MW;`
328			`t2_2[15:8] <= p1_MW; t2_3[15:8] <= p0_MW; end`
329			`2'd2:begin t2_0[23:16] <= p3_MW; t2_1[23:16] <= p2_MW;`
330			`t2_2[23:16] <= p1_MW; t2_3[23:16] <= p0_MW; end`
331			`2'd3:begin t2_0[31:24] <= p3_MW; t2_1[31:24] <= p2_MW;`
332			`t2_2[31:24] <= p1_MW; t2_3[31:24] <= p0_MW; end`
333			`endcase`
334			`endmodule`
335