h_sync.v

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                        h_p_cnt_clr = 1;
                        h_bp_cnt_ce = 1;
                        h_bp_cnt_clr = 0;
                        h_pix_cnt_ce = 0;
                h_pix_cnt_clr = 1;
                        h_fp_cnt_ce = 0;
                        h_fp_cnt_clr = 1;
                        HSYNC = 1;
                        H_DE = 0;
                        if (h_bp_cnt_tc == 0) HSYNC_ns = BACK_PORCH;                                                       
                        else HSYNC_ns = PIXEL;
                end
                /////////////////////////////////////////////////////////////////////////
                //      PIXEL STATE
                // -- Enable pixel counter
                // -- De-enable others
                /////////////////////////////////////////////////////////////////////////
                PIXEL: begin
                        h_p_cnt_ce = 0;
                        h_p_cnt_clr = 1;
                        h_bp_cnt_ce = 0;
                        h_bp_cnt_clr = 1;
                        h_pix_cnt_ce = 1;
                h_pix_cnt_clr = 0;
                        h_fp_cnt_ce = 0;
                        h_fp_cnt_clr = 1;
                        HSYNC = 1;
                        H_DE = 1;
                        if (h_pix_cnt_tc == 0) HSYNC_ns = PIXEL;                                                           
                        else HSYNC_ns = FRONT_PORCH;
        end
                /////////////////////////////////////////////////////////////////////////
                //      FRONT PORCH STATE
                // -- Enable front porch counter
                // -- De-enable others
                // -- Wraps to PULSE state
                /////////////////////////////////////////////////////////////////////////
                FRONT_PORCH: begin
                        h_p_cnt_ce = 0;
                        h_p_cnt_clr = 1;
                        h_bp_cnt_ce = 0;
                        h_bp_cnt_clr = 1;
                        h_pix_cnt_ce = 0;
                h_pix_cnt_clr = 1;
                        h_fp_cnt_ce = 1;
                        h_fp_cnt_clr = 0;
                        HSYNC = 1;      
                        H_DE = 0;
                        if (h_fp_cnt_tc == 0) HSYNC_ns = FRONT_PORCH;                                                      
                        else HSYNC_ns = PULSE;
                end
                /////////////////////////////////////////////////////////////////////////
                //      DEFAULT STATE
                /////////////////////////////////////////////////////////////////////////
                default: begin
                        h_p_cnt_ce = 0;
                        h_p_cnt_clr = 1;
                        h_bp_cnt_ce = 0;
                        h_bp_cnt_clr = 1;
                        h_pix_cnt_ce = 0;
                h_pix_cnt_clr = 1;
                        h_fp_cnt_ce = 1;
                        h_fp_cnt_clr = 0;
                        HSYNC = 1;      
                        H_DE = 0;
                        HSYNC_ns = SET_COUNTERS;
                end
                endcase
        end

///////////////////////////////////////////////////////////////////////////////
//      Horizontal Pulse Counter - Counts 96 clocks for pulse time                                                                                                                              
///////////////////////////////////////////////////////////////////////////////
        always @(posedge clk)
        begin
                if (h_p_cnt_clr) begin
                        h_p_cnt = 7'b0;
                        h_p_cnt_tc = 0;
                end
                else begin
                        if (h_p_cnt_ce) begin
                                if (h_p_cnt == 94) begin
                                        h_p_cnt = h_p_cnt + 1;
                                        h_p_cnt_tc = 1;
                                end
                                else begin
                                        h_p_cnt = h_p_cnt + 1;
                                        h_p_cnt_tc = 0;
                                end
                        end
                end
        end
///////////////////////////////////////////////////////////////////////////////
//      Horizontal Back Porch Counter - Counts 48 clocks for back porch time                                                                    
///////////////////////////////////////////////////////////////////////////////                 
        always @(posedge clk )
        begin
                if (h_bp_cnt_clr) begin
                        h_bp_cnt = 6'b0;
                        h_bp_cnt_tc = 0;
                        h_bp_cnt_tc2 = 0;
                end
                else begin
                        if (h_bp_cnt_ce) begin
                                if (h_bp_cnt == 45) begin
                                        h_bp_cnt = h_bp_cnt + 1;
                                        h_bp_cnt_tc2 = 1;
                                        h_bp_cnt_tc = 0;
                                end
                                else if (h_bp_cnt == 46) begin
                                        h_bp_cnt = h_bp_cnt + 1;
                                        h_bp_cnt_tc = 1;
                                        h_bp_cnt_tc2 = 0;
                                end
                                else begin
                                        h_bp_cnt = h_bp_cnt + 1;
                                        h_bp_cnt_tc = 0;
                                        h_bp_cnt_tc2 = 0;

                                end
                        end
                end
        end

///////////////////////////////////////////////////////////////////////////////
//      Horizontal Pixel Counter - Counts 640 clocks for pixel time                                                                                                                     
///////////////////////////////////////////////////////////////////////////////                 
        always @(posedge clk)
        begin
                if (h_pix_cnt_clr) begin
                        h_pix_cnt = 11'b0;
                        h_pix_cnt_tc = 0;
                        h_pix_cnt_tc2 = 0;
                end
                else begin
                        if (h_pix_cnt_ce) begin
                                if (h_pix_cnt == 637) begin
                                        h_pix_cnt = h_pix_cnt + 1;
                                        h_pix_cnt_tc2 = 1;
                                end
                                else if (h_pix_cnt == 638) begin
                                        h_pix_cnt = h_pix_cnt + 1;
                                        h_pix_cnt_tc = 1;
                                end
                                else begin
                                        h_pix_cnt = h_pix_cnt + 1;
                                        h_pix_cnt_tc = 0;
                                        h_pix_cnt_tc2 = 0;
                                end
                        end     
                end
        end

///////////////////////////////////////////////////////////////////////////////
//      Horizontal Front Porch Counter - Counts 16 clocks for front porch time
///////////////////////////////////////////////////////////////////////////////                 
        always @(posedge clk)
        begin
                if (h_fp_cnt_clr) begin
                        h_fp_cnt = 5'b0;
                        h_fp_cnt_tc = 0;
                end
                else begin
                        if (h_fp_cnt_ce) begin
                                if (h_fp_cnt == 14) begin
                                        h_fp_cnt = h_fp_cnt + 1;
                                        h_fp_cnt_tc = 1;
                                end
                                else begin
                                        h_fp_cnt = h_fp_cnt + 1;
                                        h_fp_cnt_tc = 0;
                                end
                        end
                end
        end
endmodule