inter_pred_sliding_window.v

a H.264/AVC Baseline Decoder

					Inter_H_window_2_7 <= Inter_ref_04_11;Inter_H_window_3_7 <= Inter_ref_05_11;
					Inter_H_window_4_7 <= Inter_ref_06_11;Inter_H_window_5_7 <= Inter_ref_07_11;
							
					Inter_H_window_0_8 <= Inter_ref_02_12;Inter_H_window_1_8 <= Inter_ref_03_12; 
					Inter_H_window_2_8 <= Inter_ref_04_12;Inter_H_window_3_8 <= Inter_ref_05_12;
					Inter_H_window_4_8 <= Inter_ref_06_12;Inter_H_window_5_8 <= Inter_ref_07_12;
				end
				3'd1:
				begin 	
					Inter_H_window_0_0 <= Inter_ref_03_04;Inter_H_window_1_0 <= Inter_ref_04_04;
					Inter_H_window_2_0 <= Inter_ref_05_04;Inter_H_window_3_0 <= Inter_ref_06_04;
					Inter_H_window_4_0 <= Inter_ref_07_04;Inter_H_window_5_0 <= Inter_ref_08_04;
							
					Inter_H_window_0_1 <= Inter_ref_03_05;Inter_H_window_1_1 <= Inter_ref_04_05; 
					Inter_H_window_2_1 <= Inter_ref_05_05;Inter_H_window_3_1 <= Inter_ref_06_05;
					Inter_H_window_4_1 <= Inter_ref_07_05;Inter_H_window_5_1 <= Inter_ref_08_05;
						
					Inter_H_window_0_6 <= Inter_ref_03_10;Inter_H_window_1_6 <= Inter_ref_04_10; 
					Inter_H_window_2_6 <= Inter_ref_05_10;Inter_H_window_3_6 <= Inter_ref_06_10;
					Inter_H_window_4_6 <= Inter_ref_07_10;Inter_H_window_5_6 <= Inter_ref_08_10;
							
					Inter_H_window_0_7 <= Inter_ref_03_11;Inter_H_window_1_7 <= Inter_ref_04_11; 
					Inter_H_window_2_7 <= Inter_ref_05_11;Inter_H_window_3_7 <= Inter_ref_06_11;
					Inter_H_window_4_7 <= Inter_ref_07_11;Inter_H_window_5_7 <= Inter_ref_08_11;
							
					Inter_H_window_0_8 <= Inter_ref_03_12;Inter_H_window_1_8 <= Inter_ref_04_12; 
					Inter_H_window_2_8 <= Inter_ref_05_12;Inter_H_window_3_8 <= Inter_ref_06_12;
					Inter_H_window_4_8 <= Inter_ref_07_12;Inter_H_window_5_8 <= Inter_ref_08_12;
				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'b0001: //Right bottom blk4x4
			case (Inter_H_window_counter0)
				3'd4:
				begin
					Inter_H_window_0_0 <= Inter_ref_04_04;Inter_H_window_1_0 <= Inter_ref_05_04;
					Inter_H_window_2_0 <= Inter_ref_06_04;Inter_H_window_3_0 <= Inter_ref_07_04;
					Inter_H_window_4_0 <= Inter_ref_08_04;Inter_H_window_5_0 <= Inter_ref_09_04;
							
					Inter_H_window_0_1 <= Inter_ref_04_05;Inter_H_window_1_1 <= Inter_ref_05_05; 
					Inter_H_window_2_1 <= Inter_ref_06_05;Inter_H_window_3_1 <= Inter_ref_07_05;
					Inter_H_window_4_1 <= Inter_ref_08_05;Inter_H_window_5_1 <= Inter_ref_09_05;
						
					Inter_H_window_0_6 <= Inter_ref_04_10;Inter_H_window_1_6 <= Inter_ref_05_10; 
					Inter_H_window_2_6 <= Inter_ref_06_10;Inter_H_window_3_6 <= Inter_ref_07_10;
					Inter_H_window_4_6 <= Inter_ref_08_10;Inter_H_window_5_6 <= Inter_ref_09_10;
							
					Inter_H_window_0_7 <= Inter_ref_04_11;Inter_H_window_1_7 <= Inter_ref_05_11; 
					Inter_H_window_2_7 <= Inter_ref_06_11;Inter_H_window_3_7 <= Inter_ref_07_11;
					Inter_H_window_4_7 <= Inter_ref_08_11;Inter_H_window_5_7 <= Inter_ref_09_11;
							
					Inter_H_window_0_8 <= Inter_ref_04_12;Inter_H_window_1_8 <= Inter_ref_05_12; 
					Inter_H_window_2_8 <= Inter_ref_06_12;Inter_H_window_3_8 <= Inter_ref_07_12;
					Inter_H_window_4_8 <= Inter_ref_08_12;Inter_H_window_5_8 <= Inter_ref_09_12;
				end
				3'd3:
				begin 	
					Inter_H_window_0_0 <= Inter_ref_05_04;Inter_H_window_1_0 <= Inter_ref_06_04;
					Inter_H_window_2_0 <= Inter_ref_07_04;Inter_H_window_3_0 <= Inter_ref_08_04;
					Inter_H_window_4_0 <= Inter_ref_09_04;Inter_H_window_5_0 <= Inter_ref_10_04;
							
					Inter_H_window_0_1 <= Inter_ref_05_05;Inter_H_window_1_1 <= Inter_ref_06_05; 
					Inter_H_window_2_1 <= Inter_ref_07_05;Inter_H_window_3_1 <= Inter_ref_08_05;
					Inter_H_window_4_1 <= Inter_ref_09_05;Inter_H_window_5_1 <= Inter_ref_10_05;
						
					Inter_H_window_0_6 <= Inter_ref_05_10;Inter_H_window_1_6 <= Inter_ref_06_10; 
					Inter_H_window_2_6 <= Inter_ref_07_10;Inter_H_window_3_6 <= Inter_ref_08_10;
					Inter_H_window_4_6 <= Inter_ref_09_10;Inter_H_window_5_6 <= Inter_ref_10_10;
							
					Inter_H_window_0_7 <= Inter_ref_05_11;Inter_H_window_1_7 <= Inter_ref_06_11; 
					Inter_H_window_2_7 <= Inter_ref_07_11;Inter_H_window_3_7 <= Inter_ref_08_11;
					Inter_H_window_4_7 <= Inter_ref_09_11;Inter_H_window_5_7 <= Inter_ref_10_11;
							
					Inter_H_window_0_8 <= Inter_ref_05_12;Inter_H_window_1_8 <= Inter_ref_06_12; 
					Inter_H_window_2_8 <= Inter_ref_07_12;Inter_H_window_3_8 <= Inter_ref_08_12;
					Inter_H_window_4_8 <= Inter_ref_09_12;Inter_H_window_5_8 <= Inter_ref_10_12;
				end
				3'd2:
				begin 	
					Inter_H_window_0_0 <= Inter_ref_06_04;Inter_H_window_1_0 <= Inter_ref_07_04;
					Inter_H_window_2_0 <= Inter_ref_08_04;Inter_H_window_3_0 <= Inter_ref_09_04;
					Inter_H_window_4_0 <= Inter_ref_10_04;Inter_H_window_5_0 <= Inter_ref_11_04;
							
					Inter_H_window_0_1 <= Inter_ref_06_05;Inter_H_window_1_1 <= Inter_ref_07_05; 
					Inter_H_window_2_1 <= Inter_ref_08_05;Inter_H_window_3_1 <= Inter_ref_09_05;
					Inter_H_window_4_1 <= Inter_ref_10_05;Inter_H_window_5_1 <= Inter_ref_11_05;
						
					Inter_H_window_0_6 <= Inter_ref_06_10;Inter_H_window_1_6 <= Inter_ref_07_10; 
					Inter_H_window_2_6 <= Inter_ref_08_10;Inter_H_window_3_6 <= Inter_ref_09_10;
					Inter_H_window_4_6 <= Inter_ref_10_10;Inter_H_window_5_6 <= Inter_ref_11_10;
							
					Inter_H_window_0_7 <= Inter_ref_06_11;Inter_H_window_1_7 <= Inter_ref_07_11; 
					Inter_H_window_2_7 <= Inter_ref_08_11;Inter_H_window_3_7 <= Inter_ref_09_11;
					Inter_H_window_4_7 <= Inter_ref_10_11;Inter_H_window_5_7 <= Inter_ref_11_11;
							
					Inter_H_window_0_8 <= Inter_ref_06_12;Inter_H_window_1_8 <= Inter_ref_07_12; 
					Inter_H_window_2_8 <= Inter_ref_08_12;Inter_H_window_3_8 <= Inter_ref_09_12;
					Inter_H_window_4_8 <= Inter_ref_10_12;Inter_H_window_5_8 <= Inter_ref_11_12;
				end
				3'd1:
				begin 	
					Inter_H_window_0_0 <= Inter_ref_07_04;Inter_H_window_1_0 <= Inter_ref_08_04;
					Inter_H_window_2_0 <= Inter_ref_09_04;Inter_H_window_3_0 <= Inter_ref_10_04;
					Inter_H_window_4_0 <= Inter_ref_11_04;Inter_H_window_5_0 <= Inter_ref_12_04;
							
					Inter_H_window_0_1 <= Inter_ref_07_05;Inter_H_window_1_1 <= Inter_ref_08_05; 
					Inter_H_window_2_1 <= Inter_ref_09_05;Inter_H_window_3_1 <= Inter_ref_10_05;
					Inter_H_window_4_1 <= Inter_ref_11_05;Inter_H_window_5_1 <= Inter_ref_12_05;
						
					Inter_H_window_0_6 <= Inter_ref_07_10;Inter_H_window_1_6 <= Inter_ref_08_10; 
					Inter_H_window_2_6 <= Inter_ref_09_10;Inter_H_window_3_6 <= Inter_ref_10_10;
					Inter_H_window_4_6 <= Inter_ref_11_10;Inter_H_window_5_6 <= Inter_ref_12_10;
							
					Inter_H_window_0_7 <= Inter_ref_07_11;Inter_H_window_1_7 <= Inter_ref_08_11; 
					Inter_H_window_2_7 <= Inter_ref_09_11;Inter_H_window_3_7 <= Inter_ref_10_11;
					Inter_H_window_4_7 <= Inter_ref_11_11;Inter_H_window_5_7 <= Inter_ref_12_11;
							
					Inter_H_window_0_8 <= Inter_ref_07_12;Inter_H_window_1_8 <= Inter_ref_08_12; 
					Inter_H_window_2_8 <= Inter_ref_09_12;Inter_H_window_3_8 <= Inter_ref_10_12;
					Inter_H_window_4_8 <= Inter_ref_11_12;Inter_H_window_5_8 <= Inter_ref_12_12;
				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
			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
		
	//Inter_H_window_counter1:for Inter_H_window_x_2/3/4/5 sliding window control
	reg [2:0] Inter_H_window_counter1;
	always @ (pos_FracL or blk4x4_inter_calculate_counter)
		if (((pos_FracL == `pos_b || pos_FracL == `pos_a || pos_FracL == `pos_c || pos_FracL == `pos_e || pos_FracL == `pos_g 
			|| pos_FracL == `pos_p || pos_FracL == `pos_r) && blk4x4_inter_calculate_counter == 4'd4) 					 ||
			((pos_FracL == `pos_j || 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_counter1 <= 3'd4;
		else if (((pos_FracL == `pos_b || pos_FracL == `pos_a || pos_FracL == `pos_c || pos_FracL == `pos_e || pos_FracL == `pos_g 
			|| pos_FracL == `pos_p || pos_FracL == `pos_r) && blk4x4_inter_calculate_counter == 4'd3) 					 ||
			((pos_FracL == `pos_j || 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_counter1 <= 3'd3;
		else if (((pos_FracL == `pos_b || pos_FracL == `pos_a || pos_FracL == `pos_c || pos_FracL == `pos_e || pos_FracL == `pos_g 
			|| pos_FracL == `pos_p || pos_FracL == `pos_r) && blk4x4_inter_calculate_counter == 4'd2) 					 ||
			((pos_FracL == `pos_j || 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_counter1 <= 3'd2;
		else if (((pos_FracL == `pos_b || pos_FracL == `pos_a || pos_FracL == `pos_c || pos_FracL == `pos_e || pos_FracL == `pos_g 
			|| pos_FracL == `pos_p || pos_FracL == `pos_r) && blk4x4_inter_calculate_counter == 4'd1) 					 ||
			((pos_FracL == `pos_j || 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_counter1 <= 3'd1;
		else
			Inter_H_window_counter1 <= 0;
			
	//Inter_H_window_x_2,Inter_H_window_x_3,Inter_H_window_x_4,Inter_H_window_x_5
	always @ (Is_blk4x4_0 or Is_blk4x4_1 or Is_blk4x4_2 or Is_blk4x4_3 or pos_FracL or Inter_H_window_counter1 
		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_10_02 or Inter_ref_11_02 or Inter_ref_12_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_10_03 or Inter_ref_11_03 or Inter_ref_12_03
		
		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