onchip_ram.v

nios里面用自定义指令集来实现三角函数

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// 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 onchip_ram (
                    // inputs:
                     address,
                     address2,
                     byteenable,
                     byteenable2,
                     chipselect,
                     chipselect2,
                     clk,
                     clk2,
                     clken,
                     clken2,
                     write,
                     write2,
                     writedata,
                     writedata2,

                    // outputs:
                     readdata,
                     readdata2
                  )
;

  output  [ 31: 0] readdata;
  output  [ 31: 0] readdata2;
  input   [ 12: 0] address;
  input   [ 12: 0] address2;
  input   [  3: 0] byteenable;
  input   [  3: 0] byteenable2;
  input            chipselect;
  input            chipselect2;
  input            clk;
  input            clk2;
  input            clken;
  input            clken2;
  input            write;
  input            write2;
  input   [ 31: 0] writedata;
  input   [ 31: 0] writedata2;

  wire    [ 31: 0] readdata;
  wire    [ 31: 0] readdata2;
  wire             wren;
  wire             wren2;
  assign wren = chipselect & write;
  assign wren2 = chipselect2 & write2;
  //s1, which is an e_avalon_slave
  //s2, which is an e_avalon_slave

//synthesis translate_off
//////////////// SIMULATION-ONLY CONTENTS
  altsyncram the_altsyncram
    (
      .address_a (address),
      .address_b (address2),
      .byteena_a (byteenable),
      .byteena_b (byteenable2),
      .clock0 (clk),
      .clock1 (clk2),
      .clocken0 (clken),
      .clocken1 (clken2),
      .data_a (writedata),
      .data_b (writedata2),
      .q_a (readdata),
      .q_b (readdata2),
      .wren_a (wren),
      .wren_b (wren2)
    );

  defparam the_altsyncram.address_reg_b = "CLOCK1",
           the_altsyncram.byte_size = 8,
           the_altsyncram.byteena_reg_b = "CLOCK1",
           the_altsyncram.indata_reg_b = "CLOCK1",
           the_altsyncram.lpm_type = "altsyncram",
           the_altsyncram.maximum_depth = 8192,
           the_altsyncram.numwords_a = 8192,
           the_altsyncram.numwords_b = 8192,
           the_altsyncram.operation_mode = "BIDIR_DUAL_PORT",
           the_altsyncram.outdata_reg_a = "UNREGISTERED",
           the_altsyncram.outdata_reg_b = "UNREGISTERED",
           the_altsyncram.ram_block_type = "AUTO",
           the_altsyncram.read_during_write_mode_mixed_ports = "DONT_CARE",
           the_altsyncram.width_a = 32,
           the_altsyncram.width_b = 32,
           the_altsyncram.width_byteena_a = 4,
           the_altsyncram.width_byteena_b = 4,
           the_altsyncram.widthad_a = 13,
           the_altsyncram.widthad_b = 13,
           the_altsyncram.wrcontrol_wraddress_reg_b = "CLOCK1";


//////////////// END SIMULATION-ONLY CONTENTS

//synthesis translate_on
//synthesis read_comments_as_HDL on
//  altsyncram the_altsyncram
//    (
//      .address_a (address),
//      .address_b (address2),
//      .byteena_a (byteenable),
//      .byteena_b (byteenable2),
//      .clock0 (clk),
//      .clock1 (clk2),
//      .clocken0 (clken),
//      .clocken1 (clken2),
//      .data_a (writedata),
//      .data_b (writedata2),
//      .q_a (readdata),
//      .q_b (readdata2),
//      .wren_a (wren),
//      .wren_b (wren2)
//    );
//
//  defparam the_altsyncram.address_reg_b = "CLOCK1",
//           the_altsyncram.byte_size = 8,
//           the_altsyncram.byteena_reg_b = "CLOCK1",
//           the_altsyncram.indata_reg_b = "CLOCK1",
//           the_altsyncram.init_file = "onchip_ram.hex",
//           the_altsyncram.lpm_type = "altsyncram",
//           the_altsyncram.maximum_depth = 8192,
//           the_altsyncram.numwords_a = 8192,
//           the_altsyncram.numwords_b = 8192,
//           the_altsyncram.operation_mode = "BIDIR_DUAL_PORT",
//           the_altsyncram.outdata_reg_a = "UNREGISTERED",
//           the_altsyncram.outdata_reg_b = "UNREGISTERED",
//           the_altsyncram.ram_block_type = "AUTO",
//           the_altsyncram.read_during_write_mode_mixed_ports = "DONT_CARE",
//           the_altsyncram.width_a = 32,
//           the_altsyncram.width_b = 32,
//           the_altsyncram.width_byteena_a = 4,
//           the_altsyncram.width_byteena_b = 4,
//           the_altsyncram.widthad_a = 13,
//           the_altsyncram.widthad_b = 13,
//           the_altsyncram.wrcontrol_wraddress_reg_b = "CLOCK1";
//
//synthesis read_comments_as_HDL off

endmodule