module SDRAM (
    input wire clk,

    input wire read_en,
    input wire [31:0] read_addr,
    output wire [31:0] read_data,
    output wire read_ready,

    input wire write_en,
    input wire [31:0] write_addr,
    input reg [31:0] write_data,
    output wire write_ready
);
  reg [31:0] ram[1920*1080];

  assign read_ready = (!read_en) ? 1 : 0;
  assign write_ready = (!write_en) ? 1 : 0;

  always @(posedge clk) begin
    if (read_en)
      ram[read_addr] <= read_data;
  end

  always @(posedge clk) begin
    if (write_en)
      write_data <= ram[write_addr];
  end

endmodule