Subversion Repositories bluespec-h264

//**********************************************************************

// Memory for Entropy Decoder

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

//

//

//

import H264Types::*;

import IMemEDDecoupled::*;

import RegFile::*;

import GetPut::*;

import ClientServer::*;

import FIFO::*;

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

// Main module

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

module mkMemEDDecoupled(IMemEDDecoupled#(index_size,data_size))

   provisos (Bits#(MemReq#(index_size,data_size),mReqLen),

             Bits#(MemResp#(data_size),mRespLen));

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

  // State

   RegFile#(Bit#(index_size),Bit#(data_size)) rfile <- mkRegFileWCF(0,fromInteger(valueof(TSub#(TExp#(index_size),1))));

   FIFO#(MemReq#(index_size,data_size)) reqQStore  <- mkFIFO();

   FIFO#(MemReq#(index_size,data_size)) reqQLoad   <- mkFIFO();

   FIFO#(MemResp#(data_size))  respQ <- mkFIFO();

   rule storing ( reqQStore.first() matches tagged StoreReq { addr:.addrt,data:.datat} );

      rfile.upd(addrt,datat);

      reqQStore.deq();

   endrule

   rule reading ( reqQLoad.first() matches tagged LoadReq .addrt );

      respQ.enq( tagged LoadResp (rfile.sub(addrt)) );

      reqQLoad.deq();

   endrule

   interface Put request_store  = fifoToPut(reqQStore);

   interface Put request_load  = fifoToPut(reqQLoad);

   interface Get response = fifoToGet(respQ);

endmodule