vga_sys.v

verilog代码读写SDRAM 不带仿真

//megafunction wizard: %Altera SOPC Builder%
//GENERATION: STANDARD
//VERSION: WM1.0


//Legal Notice: (C)2007 Altera Corporation. All rights reserved.  Your
//use of Altera Corporation's design tools, logic functions and other
//software and tools, and its AMPP partner logic functions, and any
//output files any of the foregoing (including device programming or
//simulation files), and any associated documentation or information are
//expressly subject to the terms and conditions of the Altera Program
//License Subscription Agreement or other applicable license agreement,
//including, without limitation, that your use is for the sole purpose
//of programming logic devices manufactured by Altera and sold by Altera
//or its authorized distributors.  Please refer to the applicable
//agreement for further details.

// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on

// turn off superfluous verilog processor warnings 
// altera message_level Level1 
// altera message_off 10034 10035 10036 10037 10230 10240 10030 

module burstcount_fifo_for_burst_0_upstream_module (
                                                     // inputs:
                                                      clear_fifo,
                                                      clk,
                                                      data_in,
                                                      read,
                                                      reset_n,
                                                      sync_reset,
                                                      write,

                                                     // outputs:
                                                      data_out,
                                                      empty,
                                                      fifo_contains_ones_n,
                                                      full
                                                   )
;

  output  [  8: 0] data_out;
  output           empty;
  output           fifo_contains_ones_n;
  output           full;
  input            clear_fifo;
  input            clk;
  input   [  8: 0] data_in;
  input            read;
  input            reset_n;
  input            sync_reset;
  input            write;

  wire    [  8: 0] data_out;
  wire             empty;
  reg              fifo_contains_ones_n;
  wire             full;
  reg              full_0;
  reg              full_1;
  reg              full_2;
  reg              full_3;
  reg              full_4;
  reg              full_5;
  reg              full_6;
  reg              full_7;
  reg              full_8;
  wire             full_9;
  reg     [  4: 0] how_many_ones;
  wire    [  4: 0] one_count_minus_one;
  wire    [  4: 0] one_count_plus_one;
  wire             p0_full_0;
  wire    [  8: 0] p0_stage_0;
  wire             p1_full_1;
  wire    [  8: 0] p1_stage_1;
  wire             p2_full_2;
  wire    [  8: 0] p2_stage_2;
  wire             p3_full_3;
  wire    [  8: 0] p3_stage_3;
  wire             p4_full_4;
  wire    [  8: 0] p4_stage_4;
  wire             p5_full_5;
  wire    [  8: 0] p5_stage_5;
  wire             p6_full_6;
  wire    [  8: 0] p6_stage_6;
  wire             p7_full_7;
  wire    [  8: 0] p7_stage_7;
  wire             p8_full_8;
  wire    [  8: 0] p8_stage_8;
  reg     [  8: 0] stage_0;
  reg     [  8: 0] stage_1;
  reg     [  8: 0] stage_2;
  reg     [  8: 0] stage_3;
  reg     [  8: 0] stage_4;
  reg     [  8: 0] stage_5;
  reg     [  8: 0] stage_6;
  reg     [  8: 0] stage_7;
  reg     [  8: 0] stage_8;
  wire    [  4: 0] updated_one_count;
  assign data_out = stage_0;
  assign full = full_8;
  assign empty = !full_0;
  assign full_9 = 0;
  //data_8, which is an e_mux
  assign p8_stage_8 = ((full_9 & ~clear_fifo) == 0)? data_in :
    data_in;

  //data_reg_8, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          stage_8 <= 0;
      else if (clear_fifo | sync_reset | read | (write & !full_8))
          if (sync_reset & full_8 & !((full_9 == 0) & read & write))
              stage_8 <= 0;
          else 
            stage_8 <= p8_stage_8;
    end


  //control_8, which is an e_mux
  assign p8_full_8 = ((read & !write) == 0)? full_7 :
    0;

  //control_reg_8, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          full_8 <= 0;
      else if (clear_fifo | (read ^ write) | (write & !full_0))
          if (clear_fifo)
              full_8 <= 0;
          else 
            full_8 <= p8_full_8;
    end


  //data_7, which is an e_mux
  assign p7_stage_7 = ((full_8 & ~clear_fifo) == 0)? data_in :
    stage_8;

  //data_reg_7, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          stage_7 <= 0;
      else if (clear_fifo | sync_reset | read | (write & !full_7))
          if (sync_reset & full_7 & !((full_8 == 0) & read & write))
              stage_7 <= 0;
          else 
            stage_7 <= p7_stage_7;
    end


  //control_7, which is an e_mux
  assign p7_full_7 = ((read & !write) == 0)? full_6 :
    full_8;

  //control_reg_7, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          full_7 <= 0;
      else if (clear_fifo | (read ^ write) | (write & !full_0))
          if (clear_fifo)
              full_7 <= 0;
          else 
            full_7 <= p7_full_7;
    end


  //data_6, which is an e_mux
  assign p6_stage_6 = ((full_7 & ~clear_fifo) == 0)? data_in :
    stage_7;

  //data_reg_6, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          stage_6 <= 0;
      else if (clear_fifo | sync_reset | read | (write & !full_6))
          if (sync_reset & full_6 & !((full_7 == 0) & read & write))
              stage_6 <= 0;
          else 
            stage_6 <= p6_stage_6;
    end


  //control_6, which is an e_mux
  assign p6_full_6 = ((read & !write) == 0)? full_5 :
    full_7;

  //control_reg_6, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          full_6 <= 0;
      else if (clear_fifo | (read ^ write) | (write & !full_0))
          if (clear_fifo)
              full_6 <= 0;
          else 
            full_6 <= p6_full_6;
    end


  //data_5, which is an e_mux
  assign p5_stage_5 = ((full_6 & ~clear_fifo) == 0)? data_in :
    stage_6;

  //data_reg_5, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          stage_5 <= 0;
      else if (clear_fifo | sync_reset | read | (write & !full_5))
          if (sync_reset & full_5 & !((full_6 == 0) & read & write))
              stage_5 <= 0;
          else 
            stage_5 <= p5_stage_5;
    end


  //control_5, which is an e_mux
  assign p5_full_5 = ((read & !write) == 0)? full_4 :
    full_6;

  //control_reg_5, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          full_5 <= 0;
      else if (clear_fifo | (read ^ write) | (write & !full_0))
          if (clear_fifo)
              full_5 <= 0;
          else 
            full_5 <= p5_full_5;
    end


  //data_4, which is an e_mux
  assign p4_stage_4 = ((full_5 & ~clear_fifo) == 0)? data_in :
    stage_5;

  //data_reg_4, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          stage_4 <= 0;
      else if (clear_fifo | sync_reset | read | (write & !full_4))
          if (sync_reset & full_4 & !((full_5 == 0) & read & write))
              stage_4 <= 0;
          else 
            stage_4 <= p4_stage_4;
    end


  //control_4, which is an e_mux
  assign p4_full_4 = ((read & !write) == 0)? full_3 :
    full_5;

  //control_reg_4, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          full_4 <= 0;
      else if (clear_fifo | (read ^ write) | (write & !full_0))
          if (clear_fifo)
              full_4 <= 0;
          else 
            full_4 <= p4_full_4;
    end


  //data_3, which is an e_mux
  assign p3_stage_3 = ((full_4 & ~clear_fifo) == 0)? data_in :
    stage_4;

  //data_reg_3, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          stage_3 <= 0;
      else if (clear_fifo | sync_reset | read | (write & !full_3))
          if (sync_reset & full_3 & !((full_4 == 0) & read & write))
              stage_3 <= 0;
          else 
            stage_3 <= p3_stage_3;
    end


  //control_3, which is an e_mux
  assign p3_full_3 = ((read & !write) == 0)? full_2 :
    full_4;

  //control_reg_3, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          full_3 <= 0;
      else if (clear_fifo | (read ^ write) | (write & !full_0))
          if (clear_fifo)
              full_3 <= 0;
          else 
            full_3 <= p3_full_3;
    end


  //data_2, which is an e_mux
  assign p2_stage_2 = ((full_3 & ~clear_fifo) == 0)? data_in :
    stage_3;

  //data_reg_2, which is an e_register
  always @(posedge clk or negedge reset_n)
    begin
      if (reset_n == 0)
          stage_2 <= 0;
      else if (clear_fifo | sync_reset | read | (write & !full_2))
          if (sync_reset & full_2 & !((full_3 == 0) & read & write))
              stage_2 <= 0;
          else 
            stage_2 <= p2_stage_2;