package BACK

import chisel3._
import chisel3.util._









class MirrorSRAMIO extends Bundle{
  val datar = Output(UInt(8.W))
  val dataw = Input(UInt(8.W))
  val clock = Input(Bool())
  val reset = Input(Bool())
  val we = Input(Bool())
  val addrr = Input(UInt(11.W))
  val addrw = Input(UInt(11.W))


  // val datar_a = Output(UInt(8.W))
  // val datar_b = Output(UInt(8.W))

  // val clk_a = Input(Bool())
  // val clk_b = Input(Bool())

  // val reset_a = Input(Bool())
  // val reset_b = Input(Bool())

  // val ce_a = Input(Bool())
  // val ce_b = Input(Bool())

  // val we_a = Input(Bool())
  // val we_b = Input(Bool())

  // val addr_a = Input(UInt(11.W))
  // val addr_b = Input(UInt(11.W))

  // val dataw_a = Input(UInt(8.W))
  // val dataw_b = Input(UInt(8.W))
}

class MirrorSRAM extends BlackBox with HasBlackBoxInline {

  val io: MirrorSRAMIO = IO(new MirrorSRAMIO)

  setInline("microSRAM.v",
              """
  |   module MirrorSRAM(
  |      output [7:0] datar,
  |      input  [7:0] dataw,
  |
  |      input clock,
  |      input reset,
  |
  |      input we,
  |
  |      input [11:0] addrw,
  |      input [11:0] addrr
  |
  |   );
  |
  |   wire [31:0] dout; 
  |   assign datar = dout[7:0];
  |
  |
  |SDPB bram_sdpb_0 (
  |  .DO({dout[31:8],dout[7:0]}),
  |  .CLKA(clock),
  |  .CEA(we),
  |  .RESETA(reset),
  |  .CLKB(clock),
  |  .CEB(1'b1),
  |  .RESETB(reset),
  |  .OCE(1'b1),
  |  .BLKSELA(3'b0),
  |  .BLKSELB(3'b0),
  |  .ADA({addrw,3'b0}),
  |  .DI({24'b0, dataw}),
  |  .ADB({addrr,3'b0})
  |  );
  |  defparam bram_sdpb_0.BIT_WIDTH_0 = 8;
  |  defparam bram_sdpb_0.BIT_WIDTH_1 = 8;
  |  defparam bram_sdpb_0.RESET_MODE = "SYNC";
  |
  |endmodule
    """.stripMargin)
}