Subversion Repositories or1200_soc

// --------------------------------------------------------------------

//

// --------------------------------------------------------------------

module boot_vector_rom( data, addr, we, clk, q );

  parameter DATA_WIDTH = 1;

  parameter ADDR_WIDTH = 1;

  parameter MEM_INIT = 1;

  input [(DATA_WIDTH-1):0] data;

  input [(ADDR_WIDTH-1):0] addr;

  input we;

  input clk;

  output [(DATA_WIDTH-1):0] q;

  // Declare the RAM variable

  reg [DATA_WIDTH-1:0] ram[2**ADDR_WIDTH-1:0];

  reg [ADDR_WIDTH-1:0] addr_reg;

  always @ (posedge clk)

    begin

      // Write

      if (we) ram[addr] <= data;

      addr_reg <= addr;

    end

  // Read returns NEW data at addr if we == 1'b1. This is the

  // natural behavior of TriMatrix memory blocks in Single Port

  // mode

  assign q = ram[addr_reg];

        generate

                if( MEM_INIT != 0 )

                  initial

                    $readmemh( "../../../sw/load_this_to_ram/boot_vector_rom.txt", ram );

        endgenerate

endmodule